# B roads in Zone 6 of the Great Britain numbering scheme

B roads are numbered routes in Great Britain of lesser importance than A roads. See the article Great Britain road numbering scheme for the rationale behind the numbers allocated.

## Zone 6 (3 digits)

| Road | From | To | Notes |
| B600 | Alfreton | Nuthall, Nottingham | Previously the A613 |
| B601 | Lobley Hill Interchange, A1 | A184 in Gateshead | Possible number for the former A692 west of Gateshead. The eastern end is now part of the A184, but it is not known if the B601 was decommissioned as well. Some maps and all signs state the route as part of the B1426, however other maps, as well as Gateshead MBC, still state the route as B601. |
| B602 | unused | | |
| B603 (defunct) | | | Briefly proposed in early 2013 for the section of the A6033 between Hebden Bridge and Haworth, returned to the A6033 designation. |
| B604 - B629 | unused | | |
| B630 | B6318 at Greenhead | A69 near Greenhead | |
| B631 - B639 | unused | | |
| B640 | A606 at Barleythorpe | Oakham | |
| B641 | A6003 south of Oakham | Oakham | |
| B642 - B644 | unused | | |
| B645 | Higham Ferrers | B1048 at St Neots | |
| B646 - B649 | unused | | |
| B650 (defunct) | A6 in South Mimms | A111 in Potters Bar | Became an extension of the A111 (now B556) by the 1970s. |
| B651 | A1081 at St Albans | B656 near Rush Green | |
| B652 | B653 near Harpenden | B651 at Kimpton | |
| B653 | Luton | B197 near Welwyn Garden City | |
| B654 (defunct) | A6 in Luton | A601 in Luton | Now part of the A6. |
| B655 | Barton-le-Clay | Hitchin | |
| B656 | Letchworth | A505 at Clothall Common | Formerly part of the A505. Original route ran through Willian. |
| B657 (defunct) | A601 (later A505) in Letchworth | Letchworth railway station | Declassified sometime after the 1970s. |
| B658 | A600 near Shefford | Biggleswade North Roundabout | |
| B659 | Henlow | Biggleswade | Originally ran along Eastcotts Road in Fenlake, Bedford. Renumbered to a spur of the B562 around 1935. |
| B660 | Bedford | Ramsey St Mary's | Starts in Bedford, Bedfordshire, crosses the A14 & the A1(M), ends in Cambridgeshire where it intersects with the B1040. |
| B661 | Great Staughton | A1 at Buckden | |
| B662 | A605 | B660 near Old Weston | |
| B663 | Bythorn | Caldecott | |
| B664 | A427 near Market Harborough | Uppingham | First used at Irthlingborough, cutting the corner between the A6 and B663. It was upgraded to Class I status early on and had become part of the A605 by the 1950s (probably had this number by the end of the 1920s). But following the construction of the current A45, the road was torn up and is now completely gone, nothing more than a faint line in a field. The second use was from the A43 north of Stanion to the A427 in Corby. Upgraded to Class I status as the A6116 in 1935; the section east of Corby is now part of the A6086 and the remainder unclassified. |
| B665 (defunct) | A604 in Thrapston | B663 near Raunds | Upgraded to a portion of the A605 before 1930. Later bypassed by the current A45; much of route now unclassified, except for a small section in Raunds which is now part of the B663. |
| B666 (defunct) | B663 in Raunds | B665 in Ringstead | Became a spur of the B663 by the 1950s, but was likely renumbered before then. |
| B667 | A6030 near Evington | A47 near Thurncourt | First used between Islip and Stanion; this was upgraded to the A6116 by the end of the 1920s. Next used between Humberstone and Thurmaston. The central section is part of the A563 Leicester northern bypass and the remainder unclassified. |
| B667 | A607 south of Thurmaston | A607 north of Thurmaston | Former routing of the A46 through Thurmaston. Duplicated number. |
| B668 | Oakham | A1 at Stretton | |
| B669 | Desborough | Wilbarston | |
| B670 | Cottingham, Northamptonshire | A6003 at Rockingham | |
| B671 | Wansford, Cambridgeshire (A47 road) | Elton Hall (A605 road) | |
| B672 | A6003 at Caldecott | A47 near Morcott | |
| B673 (defunct) | A606 in Rutland | B668 in Rutland | Now a spur of the B668. |
| B673 (defunct) | A607 in Syston | A6 in Wanlip Hill | Declassified following the construction of the A46 Leicester Northern Bypass and A607 Syston Bypass; the western half is now part of the A46. |
| B674 (defunct) | A6 in Mountsorrel | B6047 in Twyford | Declassified after the Mountsorrel, Syston and Rearsby bypasses were built. |
| B675 (defunct) | A60 at Hoton, Leicestershire | Former A6 at Quorn, Leicestershire | Now declassified, no longer a B road |
| B676 | A60 at Cotes, Leicestershire | A1 at Colsterworth, Lincolnshire | In two sections; uses A6006 between Melton Mowbray and a point near Old Dalby, Leicestershire – truncated at eastern end, used to run to Bourne, Lincolnshire, now A151 and B1193 |
| B677 (defunct) | A607 in Grantham | A1 (now B1174)/A152 (now A52) in Grantham | Became a spur of the A607 sometime after the 1990s. |
| B678 (defunct) | A1 (now A52) in Grantham | Grantham wharf | Much of route now part of the A52 except for the section west of the A607 to the wharf which is now unclassified. |
| B679 | A60 in West Bridgford | A453 at Silverdale, Nottinghamshire | Formerly part of the A648 |
| B680 | A60 at Ruddington, Nottinghamshire | B679 at Wilford, Nottinghamshire | |
| B681 (defunct) | A52 in Nottingham | A60 in Nottingham | Nottingham western bypass; the southern section became part of the A453 (now A6005) around 1935 while the remainder held on through the 1960s before it too was upgraded to Class I status, and is now the A6130. |
| B682 | A6130 near Hyson Green | A6002 at Bulwell | |
| B683 | A60 south of Mansfield | A611 north of Nottingham | |
| B684 | A60 north-east of Nottingham city centre | A614 near Dorket Head | |
| B685 (defunct) | A612 (now B686) in Nottingham | B686 in Nottingham | One section became a portion of the A612 in the 1990s and the remainder was declassified. |
| B686 | A612 east of Nottingham city centre | A6211 at Gedling | |
| B687 (defunct) | A52 in Bingham | A46 in Newton | Declassified, probably in the 1980s. |
| B688 (defunct) | A46 east of East Bridgford | A614 in Warren Hill | The southern section between the A46 and A612 was upgraded to Class I status early on, becoming the A6097, although much of this section returned to the B688 after the East Bridgford bypass and a new Gunthorpe Bridge (opened 1927) were built (the new road got the A6097 number). With the old bridge gone, this left the B688 with a gap over the River Trent, requiring a detour via local roads and the A6097. Later maps showed that the A6097 had replaced the B688 piece by piece. A section in Oxton was numbered as part of the B6386, but this is now unclassified. |
| B689 (defunct) | A1 (now B6326) in Newark-on-Trent | A46 in Newark-on-Trent | Was the highest-numbered and northernmost 3-digit road B road in England. Upgraded to Class I status, either as a spur of the A46 or an out-of-zone extension of the A17. Now part of the B6166 after Newark was bypassed by the A1 and A46. |
| B690 | B6004 near Bilborough | A610 at Bobbers Mill | Originally ran from south of Brington to Glatton. Renumbered as an extension of the B660 in 1935. |
| B691 | A1081 at St Albans city centre | A1057 east of St Albans city centre | |
| B692 | Saxondale Roundabout at the A52 | Margidunum Roundabout at the A6097 | Former section of the A46 |
| B693 - B699 | unused | | |

## B6000 to B6099

| Road | From | To | Notes |
| B6000 | A6 at Pride Parkway flyover, Derby | A5194, London Road, Derby | via Derby railway station. |
| B6001 | A619 north of Bakewell | A6187 at Hathersage | |
| B6002 | B5010 at Sandiacre | B6450 at Long Eaton railway station | |
| B6003 | Stapleford, Nottinghamshire | Chilwell | |
| B6004 | Arnold, Nottinghamshire | Stapleford, Nottinghamshire | Between Bilborough and Stapleford, Nottinghamshire merges with the A6002 |
| B6005 (defunct) | A52 in Bramcote | B6003 in Stapleford | Became a portion of the A6007 in 1971. |
| B6005 (defunct) | A57 in Worksop | A616 north of Budby | Originally the A6009 before it was downgraded in 1971. Became a northern extension of the B6034 after the A57 Worksop bypass was built; the bypassed section as well as the section north of the A57 are now unclassified. |
| B6006 | A52 at Bramcote Hills | Beeston | |
| B6007 | A609 in Ilkeston | A6007 in Ilkeston | Bypassed by A6007 |
| B6008 | Bilborough | Bulwell | |
| B6009 | Hucknall | Watnall | |
| B6010 | Kimberley | Greasley | |
| B6011 | Hucknall | A60 at Burntstump Hill | |
| B6012 | Rowsley | Baslow | Originally numbered B6043, it was upgraded to the A623 in the 1930s including the formerly private road through Chatsworth Park. It gained its present number in the 1970s. |
| B6013 | Belper | Shirland | |
| B6014 | Mansfield | Tansley | |
| B6015 (defunct) | B6014 in Matlock | A619 Chatsworth Road west of Chesterfield | Upgraded to Class I status as the A632 in the 1970s. May also have been used in Sheffield but this is unconfirmed. |
| B6016 | Lower Hartshay | Selston | |
| B6017 | Leabrookes | Somercotes | Short link road between B6016 and B600 |
| B6018 | Sutton in Ashfield | Selston | |
| B6019 | Alfreton | Kirkby in Ashfield | |
| B6020 | Kirkby in Ashfield | Rainworth | |
| B6021 | Sutton in Ashfield | Annesley | |
| B6022 | A38 in Sutton in Ashfield | B6139 in Sutton in Ashfield | |
| B6023 | Intersection with A38 and A6075 east of Sutton in Ashfield | A38 west of Sutton in Ashfield | Part of the A38 through Sutton until bypassed. |
| B6024 | Worksop | Roundabout with A57 and A60 | Part of A60 until bypassed by A57 |
| B6025 | A61 north of Alfreton | Tibshelf | |
| B6026 | Sutton in Ashfield | Tibshelf | |
| B6027 | A38 | Huthwaite | |
| B6028 | Sutton in Ashfield | Stanton Hill | |
| B6029 (defunct) | Whinny Hill | B6021 near Skegby | This was rerouted twice and became the A6075 with the western section later becoming part of the A617 in 2004. There may have been a later B6029 in Newark but this is unconfirmed. |
| B6030 | Mansfield | A614 south of Ollerton | |
| B6031 | Church Warsop | B6407 east of Shirebrook | |
| B6032 | A60 in Mansfield Woodhouse | A6075 in Mansfield Woodhouse | |
| B6033 | Mansfield | Forest Town | |
| B6034 | Worksop | Rufford | Uses the A616 for part of its route. |
| B6035 | Warsop | A6075 | |
| B6036 | Kelstedge | B6014 near Stretton | |
| B6037 (defunct) | A61 in Clay Cross | A617 in Heath | Upgraded to Class I status after the M1 was built, becoming the A6175 in the 1970s. |
| B6038 | North Wingfield | Hasland | |
| B6039 | Chesterfield | Tibshelf | |
| B6040 | Roundabout with A57 | Gateford | A57 through Worksop until bypassed. |
| B6041 | Manton | Gateford | Goes round northern suburbs of Worksop |
| B6042 | A60 west of Welbeck Abbey | Creswell | Rerouted by approximately 150m to the north in 2006/7 to minimise the impact of traffic on Creswell Crags |
| B6043 | Whitwell Common | A619 east of Whitwell | A619 branch road through Whitwell. Between 1922 and 1935, the route of the B6043 and A619 were the opposite way around in Whitwell. |
| B6044 | A638 in Retford | Retford railway station | |
| B6045 | Worksop | Drakeholes | |
| B6046 (defunct) | A6 Loughborough Road in Quorndon | B675 in Quorndon | Declassified due to completion of the A6 bypass. |
| B6047 | A607 at Melton Mowbray | A4304 at Market Harborough | By way of Great Dalby, Thorpe Satchville, Twyford, Tilton on the Hill and Tur Langton |
| B6048 | A619 north of Bakewell | B6012 north of Edensor | |
| B6049 | Blackwell in the Peak | Brough-on-Noe | |
| B6050 | Chesterfield | A619 east of Baslow | |
| B6051 | Chesterfield | A621 at Owler Bar | |
| B6052 | Chesterfield | Eckington | |
| B6053 | Staveley | Beighton | |
| B6054 | Highlane | Calver | Uses A6102 as part of the route. Western section past Owler Bar now A625. |
| B6055 (defunct) | B6054 at Totley Moor | A625 near Fox House Inn | The southern half (south of the B6150) became part of a rerouted A625 and the northern half became a spur of the A6187 in 1999. |
| B6056 | Eckington | Dronfield Woodhouse | |
| B6057 | Chesterfield | Dronfield | Part of A61 until bypassed. |
| B6058 | Mosborough | Killamarsh | |
| B6059 | South Anston | Wales, South Yorkshire | |
| B6060 | South Anston | Wickersley | |
| B6061 (defunct) | A623 at Sparrowpit | A625 at Mam Tor | Declassified in the 1990s. |
| B6062 | A6 near Whaley Bridge | A624 north of Chapel en le Firth | Part of A625 before it was rerouted and bypassed by A6 |
| B6063 | A6135 in Gleadless, South Yorkshire | Gleadless | |
| B6064 | Gleadless | Orgreave, South Yorkshire | |
| B6065 | Gleadless | Handsworth | |
| B6066 | Woodhouse | Catcliffe | |
| B6067 | A57 | Brinsworth | |
| B6068 | Beauchief | Ecclesall | |
| B6069 | Sheffield | Fulwood | |
| B6070 | City Road (A6135) in Sheffield | Burngreave Road (A6135) in Sheffield | Via A61 in Sheffield |
| B6071 | Farm Bridge (A61), Sheffield | B6073, Attercliffe, Sheffield | Shrewsbury Road, Talbot Street, Bernard Road |
| B6072 (defunct) | A616 Duke Street, Sheffield | B6071 Bernard Road/Bernard Street, Sheffield | Declassified. |
| B6073 | Exchange Place (A61), Sheffield | Attercliffe Road (A6178), Attercliffe, Sheffield | |
| B6074 | Wicker (A6109), Sheffield | Penistone Road (A61) | Nursery Street, Neepsend Lane |
| B6075 | Sheaf Square, Sheffield | Fitzalan Square, Sheffield | Pond Street, Flat Street |
| B6076 | Malin Bridge | Low Holdworth | West Route |
| B6077 | Malin Bridge | Low Holdworth | East Route |
| B6078 (defunct) | B6079 Catch Bar Lane, Sheffield | A629 (now A61) Penistone Road, Sheffield | Ran along Leppings Lane; renumbered as a portion of the B6079. The section north of the B6079 is now part of the A6102 while the southernmost section (which never had the B6078 number) is now an unclassified one-way street. |
| B6079 | Worksop | A1 at Ranby | |
| B6080 | A6178 in Sheffield | B6082 in Sheffield | |
| B6081 | Sheffield | Heeley | |
| B6082 | Sheffield | Concord Park | |
| B6083 | A6178 | B6082 | |
| B6084 (defunct) | A61 (now A6135) Barnsley Road, North Sheffield | A630 (now A6178), Attercliffe Common | Due to its importance as a Sheffield northern bypass, it was upgraded to Class I status as a portion of the A6102. |
| B6085 | A6178 in Attercliffe, Sheffield | A6102 in Darnall | Darnall Road |
| B6086 | Wincobank | Harley, South Yorkshire | |
| B6087 | Parson Cross | Ecclesfield | |
| B6088 | A616 west of Stocksbridge | A6102 east of Stocksbridge | Was A616 until bypassed. |
| B6089 | Rotherham | Brampton | |
| B6090 | Hooton Roberts | Harley | |
| B6091 | Nether Haugh | Hoober | |
| B6092 | Swinton | Low Stubbin | |
| B6093 | Hooton Roberts | Bramley | |
| B6094 | Conisbrough | Wadworth | |
| B6095 (defunct) | A60 (now A630) Cleveland Street, Doncaster | A1 (later A638) Hall Gate | Declassified due to road upgrades in Doncaster; the route is now split in two by the A638. |
| B6096 | Hoyland | Darfield | |
| B6097 | Hoyland | Wath-upon-Dearne | |
| B6099 | Dodworth | Kingston | |

## B6100 to B6199

| Road | From | To | Notes |
| B6100 | Kendray | Worsbrough Bridge | |
| B6101 | Marple | New Mills | |
| B6102 | Marple | Marple | |
| B6103 (defunct) | A6 in Hazel Grove | A560 in Woodley | Upgraded to Class I status as a southern extension of the A627 in the 1970s. |
| B6104 | Romiley | Marple Bridge | |
| B6105 | Glossop | Crowden | |
| B6106 | Holmfirth | Millhouse Green | |
| B6107 | Holmfirth | Marsden | |
| B6108 | Armitage Bridge | Meltham | |
| B6109 | Slaithwaite | B6107 south of Slaithwaite | |
| B6110 | Armitage Rd. Huddersfield | Armitage Bridge | |
| B6112 | Salterhebble | Outlane | part of the road was formerly the A6026 |
| B6113 | West Vale | Ripponden | |
| B6114 | Rastrick | Scammonden | most of the road was formerly the A6025 |
| B6116 | Kirkburton | Scissett | |
| B6128 | Horbury | A662 northwest of Dewsbury | by way of Ossett |
| B6129 | B6128 in Ossett | A638 at Shepherd Hill | |
| B6130 | Shadsworth, Blackburn | Intack, Blackburn | Part of the Blackburn Ring Road Originally ran from Ossett Street Side to Chidswell. Declassified around 1935 when the B6129 was extended along a parallel route. |
| B6136 | Castleford | Knottingley | |
| B6137 | Garforth | A1 road near Kippax | |
| B6138 | Mytholmroyd | Blackstone Edge | |
| B6139 | A38 at Sutton in Ashfield | B6020 at Ravenshead | Originally ran along Tuel Lane and Tower Hill in Sowerby Bridge. Upgraded to an A-road with the same number. |
| B6140 (defunct) | A58 Rochdale Road, Halifax | A58 in Bolton Brow | Ran along Pye Nest Road; now upgraded to the A6142. |
| B6144 | Haworth | Bradford | |
| B6145 | Denholme Gate | Bradford | |
| B6148 (defunct) | Ring road around Bradford | | Originally began at the A658 in Undercliffe and ran clockwise to the A641 in Wibsey, forming a northeast to south bypass. Extended to a full circle after WWII with two spurs marking the original ends: a short one along Killinghall Road to the A658 and a longer one from Chain Bar to Odsal Top, bypassing the original route to Wibsey. The entire original section, including the Odsal Top spur, became an extension of the A6036 in the 1960s, leaving the 1940s extension as the B6148. Around then the eastern section (between the A647 and B6145) was rerouted along Horton Grange Road and Ingleby Road. Soon after the entire B6148 was renumbered to A6177, and this took over the entire ring to form a full circle. The Odsal Top spur remains the A6036. |
| B6154 | Leeds | Stanningley | |
| B6155 | B6154 in Pudsey | B6157 in Stanningley | |
| B6156 | Calverley | Stanningley | |
| B6157 | Moor Allerton, Leeds | Stanningley | |
| B6158 | B6057 at Jordanthrope | B6057 at Dronfield | Originally began south of Norton; this section is now part of the current B6057. Route was formerly the original B6057. |
| B6159 | Headingley, Leeds | Halton, Leeds | Circumventing Leeds City Centre via Kirkstall, Headingley, Potternewton, and Harehills |
| B6160 | Addingham | Aysgarth | |
| B6161 | A61 at Killinghall | A658 near Pool in Wharfedale | |
| B6162 | Harrogate | Beckwithshaw | |
| B6163 | Knaresborough | A661 near Follifoot | |
| B6164 | Knaresborough | Kirk Deighton | |
| B6165 | Knaresborough | Pateley Bridge | |
| B6166 | A46 south of Newark-on-Trent | A46/A1 north of Newark | A46 through Newark until bypassed. Originally ran from Knaresborough to Boroughbridge. Shortened slightly in the 1960s after the A1 Boroughbridge Bypass was built; the remainder was upgraded to Class I status as the A6055 around 1972. The entire original section north of Minskip is now unclassified after the A1 was upgraded to motorway status (this moved the A1(M)/A6055 junction further south). |
| B6167 | A560 in Stockport | A57 at Debsdale | |
| B6168 | A693, Annfield Plain | A692, Mountsett, near Flint Hill | Passes through Annfield Plain, Catchgate, Harelaw and Flint Hill Originally ran in Stockport, likely along Prince's Street linking the A6 to the A626. Renumbered to a portion of the B5423 in 1935. Now downgraded and mostly pedestrianized, although a small section still has Class II status. |
| B6169 | A6017 in Audenshaw | B6170 in Dukinfield | |
| B6170 | Ashton-under-Lyne | Hyde | |
| B6171 | Heaviley, Stockport | Offerton, Stockport | Originally ran along Mossley Road in Ashton-under-Lyne. Now part of an extended B6194. |
| B6174 | Mottram in Longdendale | Hattersley | |
| B6175 | Greenfield | Dukinfield | |
| B6176 | Stalybridge | Stalybridge | Caroline Street and Market Street |
| B6177 | A635 at Mossley railway station | A670 in Top Mossley | Stamford Road |
| B6178 | A6 at Levenshulme | A57 at Belle Vue | Original route from Miles Platting to Belle Vue renumbered A6010 in the 1960s; the extension to Levenshulme is all that remains. |
| B6179 | Little Eaton | Watch Horn | Originally ran between Miles Platting and Cheetham Hill. Upgraded to Class I status as a portion of the A6010 in the 1960s. |
| B6180 | A56 in Broughton, Salford | A665 in Cheetham Hill, Manchester | Waterloo Road |
| B6181 | A62 Newton Street, Manchester | A6 Piccadilly, Manchester | |
| B6182 | A6 in Salford | A6042 in Manchester | Greengate and New Bridge Street |
| B6183 (defunct) | B6184 (now A6041) Blackfriars Road, Salford | A6041 Chapel Street, Salford | Split in two by the A6042 and decommissioned; the section south of New Bridge Street is now part of the B6182 and the section just west of the A6042 is now gone, taken over by a car dealership. |
| B6184 | A560 Wood Street, Stockport | A5102 Bramhall Way, Stockport | Created 2019; has a zone 6 number, despite existing west of the A6. One section former B5465. |
| B6185 (defunct) | A5066/B6184 Blackfriars Road, Salford | A56 Great Ducie Street, Salford | St Simon Street, now unclassified; much of route gone after the River Irwell was rerouted. |
| B6186 | A56 Broughton, Salford | A6 in Salford | Frederick Road and Camp Street |
| B6187 | A56 Broughton, Salford | A576 in Broughton, Salford | Knoll Street and Great Clowes Street |
| B6188 (defunct) | A62 Manchester Road in Hollinwood, Oldham | A627 Ashton Road in Hathershaw, Oldham | Upgraded to Class I status as a portion of the A6104 in the 1960s. |
| B6193 (defunct) | A62 Manchester Road, Oldham | A62 Yorkshire Street, Oldham | Section along Crossbank Street wiped out by the A62, section along Union Street West is now part of the A627 and the remainder unclassified. |
| B6196 | South Turton | Bury | Ends at A58 Originally ran from Rochdale to Shaw. Renumbered as a northern extension of the B6194 in 1935; the eastern end is now unclassified due to rerouting of the A663. |
| B6197 | Delph | Crompton | Grains Road and Buckstones Road |
| B6198 | A56 Whitefield | A665 in Whitefield | Church Lane |
| B6199 | A579 at Over Hulton | A575 at Farnworth | Plodder Lane |

## B6200 to B6299

| Road | From | To | Notes |
| B6200 | Attercliffe | Swallownest | Formerly A57 until the construction of new A57 link road onto the Sheffield Parkway. Originally ran along Hutton Lane in Bolton, connecting the A58 to the A579. Upgraded to Class I status as the A6145, probably due to construction of the M61. |
| B6201 (defunct) | A58 (now A676) Duane Road in Bolton | A579 Derby Street in Bolton | Declassified. |
| B6202 | A673 in Bolton | A579 in Bolton | |
| B6203 | B6202 in Bolton | A673 in Bolton | Part of Spa Road |
| B6210 (defunct) | A666 in Farnworth | B6209 in Little Lever | Became a western extension of the A6053 by 1926. |
| B6210 (defunct) | A639 Beastfair in Pontefract | A645 Southgate in Pontefract | Declassified. The section through the Market Place is now pedestrianized. |
| B6211 (defunct) | A58 in Breightmet | A6053 (former B6209) in Radcliffe | Became an extension of the A665. |
| B6212 | B6213 in Bury | A58 in Bury | Fenton Street, Harvey Street, Newbold Street and Stephen Street |
| B6213 | A676 near Hawkshaw | B6214 in Bury | Tottington Road, Bury Road, Market Street and Turton Road |
| B6214 | Haslingden | Bury | Helmshore Road, Lumb Carr Road, Longsight Road, Brandlesholme Road and Crostons Road |
| B6215 | B6214 in Brandlesholme | A676 near Holcombe Brook | Brandlesholme Road and Holcombe Road |
| B6217 (defunct) | B6218 in Bury | A56 Manchester Road in Bury | Haymarket Street and Knowsley Street; paralleled the A56. Declassified due to road improvements in Bury. |
| B6219 | A56 in Bury | B6222 in Bury | Wellington Road, Parkhills Road, Heywood Street, Bond Street and Parsonage Street |
| B6220 (defunct) | B6218 Market Street in Bury | A58 Rochdale Road in Bury | Much of route now gone: the western half is now under the market hall and the eastern half is now part of the A58. |
| B6225 | Milnrow | Littleborough | Runs between the A640 in Milnrow and the A58 in Littleborough |
| B6230 | Walton-le-Dale | Samlesbury | |
| B6231 | Darwen | Church | |
| B6232 | M65 junction 5 | Haslingden | |
| B6233 | Blackburn | Ramsgreave | |
| B6234 | Knuzden | Oswaldtwistle | |
| B6235 | B6232 near Haslingden | Helmshore | |
| B6236 | Blackburn | Haslingden | Formerly A677. Originally ran along King Street in Accrington, between the A679 and A680. Due to road improvement, much of the route is now unclassified, although the eastern section is part of the A679. |
| B6237 | Church | Accrington | |
| B6238 | A681, Waterfoot | A671, Deerplay Moor | Passes through Whitewell Bottom, Lumb, Water, and joins the A671 for Burnley |
| B6241 | A583 in Ashton on Ribble | A5085/A6063 in Deepdale | Preston Northern Ring Road Originally ran along Deepdale Road from Preston to Fulwood. Renumbered to a portion of the A6063 in the 1980s; the northern section is part of the current B6241. |
| B6242 | A5085 at Preston | A6 at Preston | |
| B6243 | Preston | Clitheroe | Via Longridge |
| B6245 | A666 in Wilpshire | B6243 near Longridge | Via Salesbury, Clayton-le-Dale (junction with A59), and Ribchester |
| B6246 | Whalley | B6243 near Great Mitton | |
| B6247 | Barrowford | Colne | |
| B6248 | Brierfield | Fence | |
| B6249 | Nelson | Wheatley Lane, Fence | |
| B6250 | Colne | Trawden | |
| B6251 | A59 near Horton | Foulridge | |
| B6252 | Barnoldswick | A56 in Thornton in Craven | |
| B6253 | A65 at Hellifield | A682 near Hellifield | |
| B6254 | A65 at Kendal | A6 at Carnforth | B6601 (link to M6) terminates onto this road |
| B6255 | Hawes | Ingleton | |
| B6258 | Bamber Bridge | Walton-le-Dale | Formerly part of A6. Originally ran from Sedbergh to Kirkby Stephen. Renumbered as a northern extension of the A683 in the late 1950s. |
| B6259 | Warcop | Garsdale | |
| B6260 | M6 / A685 at Tebay | B6542 at Appleby-in-Westmorland | Passes through Tebay, Orton, Eden, Hoff and Burrells |
| B6261 | A685, Gaisgill | A6, Shap Rural, Shap | Passes through Orton, Eden and Oddendale |
| B6262 | A6, Eamont Bridge | A66, near Penrith | Passes through Brougham, Cumbria |
| B6263 | M6, J42 | A69, Warwick-on-Eden, Cumbria | Passes through Wetheral, Cumbria |
| B6264 | A689 | A7, Stanwix Bank | |
| B6265 | A6131 (former A59) in Skipton | A59 in Green Hammerton | |
| B6265 | A650 west of Shipley | A6068 in Cross Hills | Runs along the old A629 and A650. Duplicate number. |
| B6266 | A58/A6060 in Rochdale | A58 in Rochdale | Former routing of the A58 through Rochdale. First used from Ripon to Masham. Upgraded to Class I status as a portion of the A6108 in the late 1920s. Next used in Rochdale, from The Esplanade to the A627 Blackwater Street. Swapped with the A58 when it was built north of Rochdale. |
| B6267 | A61 near Skipton-on-Swale | A6108 in Low Burton | Originally continued to the A684 in Leyburn, but this was upgraded to Class I status early on and is now part of the A6108. |
| B6268 | B6267 east of Low Burton | B6285 in Bedale | |
| B6269 | B6144 in Heaton, Bradford | B6146 in Cottingley, Bradford | Originally ran from Leyburn to Downholme. Upgraded to Class I status as a portion of the A6108 in the late 1920s. |
| B6270 | A6108 in Downholme | Nateby, Cumbria | Originally began in Scotch Corner and ended at Reeth. The section from Scotch Corner to Downholme was upgraded to a portion of the A6108 in the late 1920s and the extension to Nateby did not happen until 1935. |
| B6271 | Richmond, North Yorkshire | Northallerton | |
| B6273 | A638 Wragby, West Yorkshire | A6195 south of Middlecliffe, South Yorkshire | Originally ran from Scorton to Plantation House. Put out of zone when the A1 was rerouted via Scotch Corner instead of Northallerton in 1924 (old route became an extension of the A167) and was renumbered to B1263 as a result. |
| B6274 | Richmond, North Yorkshire | Staindrop | |
| B6275 | A1(M) | A68 | Roman Road |
| B6276 | Middleton-in-Teesdale | Brough | |
| B6277 | A66 near Greta Bridge | A689 in Alston | |
| B6278 | Barnard Castle | Shotley Bridge | |
| B6279 | Eggleston | Haughton le Skerne | |
| B6280 | Blackwell | A66 | |
| B6282 | B6277 in Middleton-in-Teesdale | A6072 in Shildon | |
| B6283 (defunct) | A688 in Bishop Auckland | A6072 (now B6282) in Shildon | Much of route now part of the A6072, but the ends are now unclassified as Shildon and Tinsdale Crescent have been bypassed. |
| B6285 | Bedale | A6055 near Burneston | Originally ran from Bishop Auckland to South Church. Renumbered as a northern extension of the A6072; the section north of the A688 Bishop Auckland bypass is now the A689 and the southern portion is now the B6282. |
| B6286 | A690, Willington | A689, Toronto, County Durham | Passes through Sunnybrow and Hunwick |
| B6287 | A688, Coundon | A167, Ferryhill | Passes through Coundon, Leeholme, Kirk Merrington |
| B6288 | A167 Croxdale | B6287 Kirk Merrington | Passes through Tudhoe, Spennymoor |
| B6289 (defunct) | A6074 Grayson Road in Spennymoor | B6288 in Kirk Merrington | Declassified when the A688 Spennymoor bypass was built. |
| B6290 | A693 Blind Lane, Chester le Street | A167 Park Road North, Chester le Street | Originally ran in Spennymoor from the B6288 Coulson Street to the A6074 Durham Road. Now part of the B6288 due to construction of the A688 Spennymoor bypass. |
| B6291 | A688 Old Quarrington | A188 Cassop | Passes through Old Quarrington, Coxhoe and Quarrington Hill |
| B6292 | B6196 in Starling | A665 in Radcliffe | Portion of route former A668. Originally ran from Brampton to Alston. Became an extension of the A689 in 1971; the section within the A69 Brampton bypass is unclassified. |
| B6293 (defunct) | B6277 in Alston | A68 in Black Hall | Upgraded (along with the then-B6292) to an extension of the A689 in 1971. |
| B6295 | Langley on Tyne | A689, Cowshill | Passes through Langley-on-Tyne, Catton, Northumberland, Thornley Gate, Sinderhope, Allenheads |
| B6296 | A691, Lanchester | A689, Wolsingham | Passes through Hollinside Terrace, Satley, High Stoop, Wolsingham |
| B6298 | A689 Crook, County Durham | B6299 Billy Hill | Passes through Crook, Billy Row and Billy Hill |
| B6299 | A690, Willington, County Durham | A68, Tow Law | Passes through Willington, Billy Hill and Sunderland, Weardale |

## B6300 to B6399

| Road | From | To | Notes |
| B6300 | A690, Meadowfield | A167, Sunderland Bridge, County Durham | Passes through Meadowfield and Browney |
| B6301 | Lanchester | A68, Tow Law | Passes through Cornsay Colliery, Hedley Hill |
| B6302 | Cornsay Colliery | A690 Stonebridge, near Neville's Cross | Passes through Broompark, Ushaw Moor and Esh Winning |
| B6303 | Allendale | Catton | |
| B6304 | B6305 Branchend, Langley on Tyne | B6295 Beacon Rigg Farm, Langley on Tyne | |
| B6305 | Hexham | A686, Langley on Tyne | Passes through Lowgate and Langley on Tyne |
| B6306 | Hexham | Edmundbyers | Passes through Ruffside, Blanchland, Slaley, Northumberland, Fellside, Hexham |
| B6307 | A695 Dilston | Linnels Bank | Passes through Dilston |
| B6308 | Medomsley | A692 Delves Lane | Passes through Consett |
| B6309 | Leadgate, County Durham | Stocksfield, Northumberland | Passes through Whittonstall and Ebchester |
| B6310 | Burnopfield | A691, Blackhill near Consett | Passes through Hamsterley Mill and Medomsley |
| B6311 | Clough Dene, near Tantobie | Flint Hill | Passes through Tantobie |
| B6312 | Witton Gilbert | Plawsworth | |
| B6313 | A693 Oxhill | A167 Chester-le-Street | Passes through South Moor, Craghead |
| B6314 | Burnopfield | Rowlands Gill | |
| B6315 | Ryton | Rowlands Gill | Passes through Woodside, Greenside, High Spen and Highfield |
| B6316 | Whickham | A692, Sunniside, Gateshead | |
| B6317 | A692, Lobley Hill | A695, near Crawcrook | Passes through Whickham, Swalwell, Blaydon-On-Tyne, Ryton, Barmoor and Crawcrook |
| B6318 | Heddon-on-the-Wall | A7, south of Langholm | Includes the Military Road, which runs alongside Hadrian's Wall, some of which was demolished in the 18th century to provide material for the road. At 61.4 miles (98.8 km), it is the longest B Road in Mainland Britain. |
| B6319 | A69 at Haydon Bridge | B6318 near Chollerford | Overlaps Cycle Route 72 (Northumberland) |
| B6320 | A696 Otterburn | B6318 Humsaugh | 19.8 miles long, passing through Otterburn, Bellingham, Park End, and Nunwick |
| B6321 | A695 near Dilston | B6318 | Passes through Corbridge and Aydon |
| B6322 | Medomsley Road, Consett | A691 Durham Road, Consett | Not on the 1922 Road Lists, but was classified by 1932. Originally ran from west of Belsay to Whittle Dene. Renumbered as a portion of an extended B6309 by the end of the 1920s. |
| B6322 | A69 west of Haltwhistle | A69 east of Haltwhistle | Original route of the A69 through Haltwhistle, designated in the 1990s. Duplicate number. |
| B6323 | A69 north of Throckley | Ponteland | |
| B6324 | B6323 at Callerton Lane End | A167 at Cowgate | |
| B6325 | South Muskham | North Muskham | A1 until bypassed, then A6065 until A46 bypass around Newark |
| B6326 | A46 north of Newark | A1 south of Newark | A1 until bypassed, then A6065 until A46 bypass. |
| B6327 (defunct) | A69 (now A186) West Road in Newcastle-upon-Tyne | A695 Scotswood Road in Newcastle-upon-Tyne | Put out of zone after the A1 was rerouted and was renumbered as a portion of the B1305. |
| B6328 (defunct) | A69 (now A186) Westgate Road, Newcastle-upon-Tyne | B6325 (now A191) Denton Road, Newcastle-upon-Tyne | Renumbered as a portion of the B1311 (some maps claim that the easternmost block is a disconnected portion of the B1600) |
| B6329 (defunct) | B6328 (now B1311) Elswick Road, Newcastle-upon-Tyne | A695 Scotswood Road, Newcastle-upon-Tyne | Declassified and partly pedestrianized. |
| B6330 (defunct) | A695 Scotswood Road, Newcastle-upon-Tyne | B6334 (now B1600) Forth Banks, Newcastle-upon-Tyne | Declassified; the section just south of Scotswood Road is now pedestrianized. |
| B6331 (defunct) | A69 (now A186) Westgate Road, Newcastle-upon-Tyne | A695 Scotswood Road, Newcastle-upon-Tyne | Declassified due to redevelopment; portions of the route are also gone. |
| B6332 (defunct) | A69 (now A186) Westgate Road, Newcastle-upon-Tyne | A6082 Redheugh Bridge Road, Newcastle-upon-Tyne | Later renumbered as a portion of the B1600, but now mostly unclassified. South of Westmorland Road is broken up by the college campus built on top and Railway Street is now part of the A695. |
| B6333 (defunct) | A6082 Railway Street, Newcastle-upon-Tyne | A695 Neville Street & A69 Westgate Road (both now A186), Newcastle-upon-Tyne | Much of route now unclassified; the western section is now part of the B1600 and Orchard Street is now just a queue for station taxis. |
| B6334 (defunct) | B6333 Forth Street, Newcastle-upon-Tyne | A184 at the northern end of the Swing Bridge, Newcastle-upon-Tyne | Now part of the B1600. |
| B6335 (defunct) | A695 (now A186) Neville Street, Newcastle-upon-Tyne | A1 Newgate Street, Newcastle-upon-Tyne | Section east of the A69 later declassified, Clayton Street West now part of the A695 and the remainder unclassified. |
| B6336 (defunct) | A69 (now A186) Westgate Road, Newcastle-upon-Tyne | A696 (now A189) Gallowgate, Newcastle-upon-Tyne | Rerouted along Corporation Street (original route now gone, lost under the now-demolished Tyne Brewery). Corporation Street is now part of the B1311 and the eastern end is now part of the A189. Except for the western end of Buckingham Street, the original B6336 is gone. |
| B6337 (defunct) | A696 (now A189) Barrack Road, Newcastle-upon-Tyne | A69 (now A186) Westgate Road, Newcastle-upon-Tyne | Declassified; the route has been split in two by the new A189. The southern end is now closed to traffic and the central section is now a shared space with the redevelopment of the Tyne Brewery site. |
| B6338 (defunct) | A1 (now B1318) near the Hancock Museum, Newcastle-upon-Tyne | B6339 Grandstand Road, Newcastle-upon-Tyne | Declassified when it was bypassed by the A167; the eastern end is now a spur of the B1318 and the western end merges into a slip road leading to the A189. |
| B6339 (defunct) | A696 (now A189) Ponteland Road, Fenham | A1 (now B1318) Great North Road, West Jesmond | Renumbered as a western extension of the A189. |
| B6340 | B6398 in Newtown St Boswells | A68 north of Newtown St Boswells | Former routing of the A68 through Newtown St Boswells; the northern section is an old routing of the A6091. Originally ran from Kenton Bar to Gosforth; now part of an extended A191. |
| B6341 | A696 at Otterburn | A1 near South Charlton | Passes through Northumberland National Park |
| B6342 | Crossroads with A68 and A6079 near Colwell | B6341 at Rothbury | Over 20 miles long; goes through Little Bavington, crosses A696 near Kirkharle, then through Cambo and Ewesley |
| B6343 | B6342 at Cambo | Morpeth | |
| B6344 | Rothbury | A697 | |
| B6345 | Longframlington | Amble | |
| B6346 | Alnwick | A697 near Wooperton | |
| B6347 | B6346 | Christon Bank | |
| B6348 | A697 at Wooler | A1 near Bellshill | |
| B6349 | B6348 near Wooler | A1 near Belford | |
| B6350 | B6352 at Kelso | A698 at Cornhill-on-Tweed | |
| B6351 | B6352 near Kilham | A697 at Akeld | |
| B6352 | Kelso, Scottish Borders | Mindrum Mill, Northumberland | |
| B6353 | A1 at Fenwick | A697 near Crookham | |
| B6354 | A697 near Ford | A1167 at Tweedmouth | |
| B6355 | A1107 at Eyemouth | B6371 at Tranent | 41.3 miles (66.5 km), via Chirnside, Preston near Duns and Gifford |
| B6356 | Earlston | B6404 | |
| B6357 | A68 near Jedburgh | Annan | Passes the A74(M) and B7076 (former A74 before bypass by motorway) near Kirkpatrick Fleming (north of Junction 21) |
| B6358 | A68 at Jedburgh | A698 near Spittal-on-Rule | |
| B6359 | A7, north of Hawick | East of Melrose, (A6091) | Meets at a cross roads on the A699 |
| B6360 | A7 north of Selkirk | A68 near Leaderfoot Viaduct | |
| B6361 | Melrose | Newstead | |
| B6362 | Stow | A697 near Lauder | |
| B6363 | A198, at Longniddry | B6355 north of Pencaitland | 4.7 miles (7.6 km), via Gladsmuir and Penston. |
| B6364 | A6105 near Greenlaw | A6089 north of Kelso | |
| B6365 | B6355 | A6112 north of Duns | |
| B6366 (defunct) | B6365 north of Duns | A1 in Grantshouse | Upgraded to Class I status, becoming a portion of the A6112 in the late 1920s. |
| B6366 (defunct) | A6105 Langtongate, Duns | A6112 Castle Street, Duns | Now a portion of a rerouted A6105. |
| B6367 | A7, north of Falahill | A6093 north of Pathhead | 7.0 miles (11.3 km), via Crichton. Passes near Crichton Castle. |
| B6368 | A6093 at Haddington | A7, south of Heriot | 16.9 miles (27.2 km), via Humbie. Passes by Soutra Aisle near Gilston. |
| B6369 | B6355 at Gifford | B6368 south of Haddington | 4.0 miles (6.4 km) |
| B6370 | B6355 East of Gifford | Thistly Cross Roundabout, A1 near Dunbar | |
| B6371 | Humbie, East Lothian | Cockenzie and Port Seton, East Lothian | 13.7 miles (22.0 km), via Ormiston and Tranent |
| B6372 | A766 in Penicuik, Midlothian | A68 at Oxenfoord Castle, near Pathhead | 14.4 miles (23.2 km), passing Temple, running through Gorebridge |
| B6373 | A6106 in Dalkeith, Scotland | A6106 in Dalkeith | Wholly within Dalkeith, original route of A68 |
| B6374 | Galashiels | Melrose | Former routing of the A6091. Originally ran from Elginhaugh to Portobello and is the highest numbered road in Zone 6 in the 1922 Road Lists. Upgraded to the A6106 early on, probably by 1925. The northernmost section is now part of the A199 and the southernmost section is now unclassified. |
| B6374 | Heage | Ripley | Duplicate number. |
| B6375 | A625 at Whirlow | B6068 | |
| B6376 | Warmsworth | Maltby | |
| B6377 | A671 | A680 north of Rochdale town centre | |
| B6378 | B6132 | A638 | |
| B6379 | A641 | A641 | |
| B6380 | A647 | A6036 at Odsal | |
| B6381 | A658 East of Bradford City Centre | A647 | |
| B6382 | Ilkley Town Centre | East of Ilkley | |
| B6383 | Barnoldswick | Kelbrook | by way of Salterforth |
| B6384 | Holme, Cumbria | Milnthorpe | |
| B6385 | Crooklands | Milnthorpe | |
| B6386 | Southwell | A614 | |
| B6387 | Ollerton | Gamston | |
| B6388 | Lowfield, Sheffield | Mosborough, Sheffield | Newly defined in the 2010s, runs from A61/A621 junction near Sheffield city centre outwards to the south-eastern suburbs, consisting of (in order from the city centre) Myrtle Road, Prospect Road, Spencer Road, Richards Road, Gleadless Road, White Lane, High Lane and Quarry Hill. White Lane carries Sheffield Supertram tracks between Gleadless Townend and its junction with Fox Lane. |
| B6390 | A635 at Fairfield | A6140 at Guide Bridge | |
| B6391 | A666 road near Cadshaw | Bromley Cross, Bolton | |
| B6392 | A6094 near Rosewell | A7, Gilmerton Road Roundabout | |
| B6393 | A62 near Monsall | B6189 at Middleton Junction | |
| B6394 | B6374 | Melrose | Shortcut to Borders General Hospital |
| B6395 | A695 West of Prudhoe | A695 East of Prudhoe | |
| B6396 | B6352 south of Kelso | B6352 at Mindrum Mill | across the Anglo-Scottish border |
| B6397 | A6089 near Kelso | A6105 near Earlston | |
| B6398 | B6359 | A68 at Newtown St Boswells | |
| B6399 | A698 | B6357 (north of Newcastleton) | Starts at the end of Hawick one-way system |

## B6400 to B6499

| Road | From | To | Notes |
| B6400 | A7 north of Ashkirk | A698 near Crailing | |
| B6401 | A698 in Kalemouth | B6352 in Town Yetholm | |
| B6402 | B6226 at Bob's Smithy Inn | A58 at Markland Hill | Originally continued to Fernhill Gate; this section is now unclassified. |
| B6403 | Colsterworth | A17 at Byards Leap | Forms part of the Roman road Ermine Street |
| B6404 | A68 in St Boswells | B6397 in Mainberry | |
| B6405 | A698 in Denholm | B6359 near Hassendean | |
| B6406 | A38 near Blackwell | B6397 near Hilcote | |
| B6407 | Pleasley | Sookholme | |
| B6408 | A619 in Bakewell | Bakewell railway station | Station Road, Bakewell |
| B6409 | B6117 in Savile Town | A638 in Dewsbury | |
| B6410 | A6021 in Broom | B6060 in Morthen | Also appeared along Talbot Road in Lancashire, but this is a typo for the B5410. Later maps showed the correct number. |
| B6411 | A635 Hickleton, South Yorkshire | B6273 Great Houghton, South Yorkshire | |
| B6412 | Lazonby | A66 near Temple Sowerby | |
| B6413 | A6071 at Brampton | A6 at Plumpton | By way of Castle Carrock, Cumrew, Newbiggin, Croglin, High Bankhill, Kirkoswald and Lazonby |
| B6414 | A6094 in Dalkeith | A199 in Tranent | |
| B6415 | A199/A1140 in Portobello, Edinburgh | A6106 in Millerhill | One section former A1 |
| B6416 | A6 Welford Road, Leicester | A47 Uppingham Road, Leicester | Originally continued north and west to the A6; much of this became the A6030 in the 1960s and was then declassified (except for a short section) in the 2000s when the A6030 was rerouted to reach the A563. |
| B6417 | A617 near Pleasley | A618 near Clowne | Formerly the southern portion of the A618. Originally followed Grosvenor Street in Ripley, only shown on a late 1930s map. Became a portion of the A610 by the 1950s, and is now part of the B6441/B6179 one-way system. |
| B6418 | Long Duckmanton | Clowne | |
| B6419 | Bolsover | Renishaw | |
| B6420 | Babworth | A1/A57/A614 | |
| B6421 | A655 in Castleford | A628 in High Ackworth | |
| B6422 | Scawsby | Hemsworth | |
| B6423 (defunct) | A60/A57 in Worksop | A57 in Worksop | The section along Newcastle Street is now part of the B6024 and the remainder unclassified. |
| B6425 | B6039 in Temple Normanton | A632 at Arkwright Town | Originally ran along Stockingstone Road on the north side of Luton, connecting the A6 to the A601. Upgraded to the A5228 between 1960 and 1975. |
| B6426 | A1001/A1057 (The Comet Roundabout), Hatfield | A1000 Great North Road, Hatfield | Former portion of the A414. Originally ran from the A414 (now A1057) at St Albans to the A1 at Water End. The A1(M) split off the eastern end in the 1970s with the section between Colney Heath and Water End becoming the B197; the entire route is now the C174. |
| B6429 | Cullingworth | Bingley | Road in West Yorkshire that leaves at A629 at Cullingworth Moor before heading east through Cullingworth, Harden and then into Bingley town where it has a junction with the B6265. It crosses the River Aire immediately west of Bingley by the means of Ireland Bridge |
| B6430 | A6 south of Catterall | A6 north of Garstang | |
| B6431 | B6175 in Dukinfield | A635 in Stalybridge | Originally ran in Newcastle upon Tyne from Quayside to City Road. Became a portion of the B1600 in the 1980s. |
| B6434 | Burnley | M65 J11 | Originally ran in Kendal from Stramongate Bridge to Nether Bridge. Became a portion of an extended A65 in the 1950s. |
| B6439 | unused | | |
| B6440 (defunct) | A6086 Grainger Street, Newcastle-upon-Tyne | A696 New Bridge Street, Newcastle-upon-Tyne | Originally numbered B1306, it became the B6440 when the A1 was rerouted over the new Tyne Bridge, putting the route in Zone 6. Now unclassified due to redevelopment; the eastern end is now gone, lost under the A167(M). |
| B6441 | Hartshay Hill (Ripley) | Greenwich (Ripley) | Originally ran from Codnor Gate to Greenhillocks. Now unclassified. |
| B6442 (defunct) | A426 Gallowtree Gate, Leicester | A6 Charles Street, Leicester | Out-of-zone on 1950s maps, so it must have been created before the A6 was moved east. Now unclassified. |
| B6444 | A167 in Aycliffe | A6072 in Heighington | Originally ran along Denby Dale Road in Wakefield, connecting the A636 to the A642. Declassified in the 1970s. |
| B6446 | A65 west of Kirkby Lonsdale | Main Street, Kirkby Lonsdale | Original routing of the A65. Originally ran along Reedyford Road in Nelson. Renumbered as an extension of the A6068. |
| B6447 | Ewood | Beardwood | Part of the Blackburn Ring Road |
| B6448 (defunct) | B6099 Keresforth Hill Road in Kingstone | A628 Dodworth Road in Pogmoor | Upgraded to Class I status around the mid-1970s, becoming a portion of the A6133. |
| B6450 (defunct) | B6055 | A625 | Upgraded to Class I status in 1999, becoming a portion of a rerouted A625. |
| B6451 | A659 in Otley | B6165 in Summerbridge |
| B6455 (defunct) | A7 west of Newtongrange | A68 in Easthouses | Much of route became a portion of the B6482 in the 1970s. |
| B6457 | A68 Fala Village | B6368 | 1.4 miles (2.3 km) |
| B6458 | A68 near Fala Village | B6367 at Tynehead | 2.3 miles (3.7 km) |
| B6459 (defunct) | A7 in Bridge Place | A6091 in Station Brae | Now a portion of a rerouted A7. |
| B6463 | A6182 Rossington | A57 Todwick | |
| B6464 | Beeston | Chilwell | Bypasses by A6005 |
| B6465 | Ashford-in-the-Water | Wardlow | |
| B6466 | unused | | |
| B6467 (defunct) | A642 Marygate, Wakefield | A61 in Lower Warrengate, Wakefield | Declassified in the 1970s and now pedestrianized. |
| B6469 | A57 in Manchester | A635 in Manchester | Whitworth Street West, Whitworth Street and Fairfield Street |
| B6473 | A56 Bury New Road, Whitefield | A665 in Whitefield | Former portion of the A668. Originally ran from High Cross to Oxton, acting as an eastern bypass of Lauder for A697 traffic. Renumbered as a spur of the A697 in the 1940s. |
| B6475 | A638 in Lupset, Wakefield | A636 in Thornes, Wakefield | Also ran along Park Road in Oldham in the 1970s. Now unclassified. |
| B6476 (reserved) | | | Listed in the DfT Road List as "Reserved for Wakefield Outer Ring Road". |
| B6477 | A62/A627 (Manchester Street Roundabout) in Oldham | A62/A669 in Oldham | Former portion of the A62. One section along High Street is now pedestrianized and the remainder gone, with the Magistrates' Court and Town Square Shopping Center built on top. |
| B6478 | Clitheroe | Long Preston | |
| B6479 | Ribblehead | Settle | |
| B6480 | A683 near Farleton, Lancashire | A65 near Clapham, North Yorkshire | |
| B6481 | A639 in Stourton | A639/M1 in Rothwell Haigh | Formerly the A639 before it was bypassed by the M1. |
| B6481 | A427 Oakley Road, Corby | A6086 in Corby | Much of original route now the A6014. |
| B6482 | A7 at Newtongrange | A6106 in Dalkeith | Was the B6455 before the 1970s. |
| B6483 - B6499 | unused | | |

## B6500 to B6999

| Road | From | To | Notes |
| B6500 - B6520 | unused | | |
| B6521 | Eyam | A6187 near the Fox House Inn | |
| B6522 | unused | | |
| B6523 (defunct) | | | Listed in the DfT Road lists as running from Old Felton to West Moor via Felton. This was the former routing of the A1 through Felton, but no evidence has been found that the road had the B6523 number. The number was actually used for the short section connecting the two sections of the B6345, and the remainder declassified. |
| B6524 | A197 Loansdean, Morpeth | A696 Belsay | Passes through Loansdean, West Edington, Whalton |
| B6525 | A1 Scremerston | A697 Wooler | Passes through Ancroft, Barmoor Castle (near Lowick), Doddington, Wooler |
| B6526 (defunct) | Rawtenshall | Edenfield | Former routing of the A56; now unclassified. |
| B6527 | A56 and A680, Bent Gate, Haslingden | A680, Edenfield | Formerly A680. Passes through Ewood Bridge |
| B6528 | A69, Horsley, Northumberland | A69, Denton | Passes through Heddon-on-the-Wall, Throckley, Walbottle, Blucher |
| B6529 | A68 Corbridge | B6321 Corbridge | |
| B6530 | B6321 Corbridge | A69 near Corbridge | Passes through Corbridge – Newcastle Rd. |
| B6531 | B6305 Battle Hill, Hexham | A69 Burnland Terrace | Passes through Hexham |
| B6532 | A691, Framwellgate Moor | A693, Stanley | Passes through Sacriston, Edmondsley, Craghead, The Middles, Stanley, County Durham |
| B6533 | Sheffield Parkway/A630 | Catcliffe | |
| B6534 (defunct) | A696 Ponteland Road, Newcastle upon Tyne | B6326 (now B1305) Two Ball Lonnen, Newcastle upon Tyne | Fenham Hill Drive; likely short-lived (or never existed) as it never appeared on any known maps. Now unclassified. |
| B6535 | Rishton | Great Harwood | Formerly the A6064 |
| B6537 (defunct) | Inghey Bridge | Skibeden | Main east-west road through Skipton; originally the A59 to the west and A65 to the east. Likely short-lived (or never existed) and is now part of the A6069. |
| B6539 | Moor Hill roundabout, A61, Sheffield | Corporation Street, A61, Sheffield | Formerly the A57 |
| B6540 | A50, Castle Donington | Long Eaton, The Green | |
| B6542 | Appleby-in-Westmorland | A66 | |
| B6546 | Chapeltown, Sheffield (A629/A6135) | Grenoside, Sheffield (A61) | |
| B6547 | A57 Fulwood Road | B6069 Clarkhouse Road | Runs along Glossop Road |
| B6548 - B6599 | unused | | |
| B6601 | M6 J35 (Carnforth Interchange) | B6254 near Carnforth | Formerly part of the A601(M) until 2020. (Some maps still show this as A601(M).) Initially thought to have been a spur of the B6254, signs posted in 2021 show the B6601 number. The B6601 is the first B-road to have motorway restrictions and also have been an ex-motorway. |
| B6670 (defunct) | A607 | A46 | For a short period in the 1980s/early 1990s, the B6670 was the route of the former A46 through Syston; this has now been declassified, except for the northern end which is part of the A46/A607 grade-separated junction. |
| B6902 | M1 J46 (Austhorpe Interchange) | A6120 Shadwell | Part of the former Leeds Outer Ring Road in the Cross Gates/Seacroft area. |
| B6918 | A1 J77 at Kenton Bar | A696 at Newcastle Airport | Follows the original line of the A696 between the A1 Junction 77 and Newcastle International Airport. |