Special routes of U.S. Route 63
Ten special routes of U.S. Route 63 currently exist. Five of them lie within the state of Arkansas. There are also four former routings that have been removed from the system. Warren business route. U.S. Route 63 Business (US 63B and Hwy. 63B) is a business route of U.S. Route 63 in Bradley County, Arkansas. The route's southern terminus is at US 63 at the northern city limits of Warren. The junction also serves as the northern terminus of Highway 189. US 63B runs south as Myrtle Street (past Warren High School) until  turning onto Bond Street near the Davis-Adams House, listed on the National Register of Historic Places (NRHP). After one block, the route turns south onto Main Street and runs through downtown Warren. Passing historic structures, including the Bradley County Courthouse and Clerk's Office, Blankinship Motor Company Building, Warren Post Office, and the Ederington House (all NRHP listed). Between Church Street and Central Street the highway overlaps with US 278 BUS. After the Central Street intersection, US 63B runs south to terminate at its parent route. Pine Bluff business route. U.S. Route 63 Business (US 63B and Hwy. 63B ) is a business route of US 63 in Jefferson County, Arkansas. Bono business route. U.S. Highway 63 Business is a business route of in Craighead County, Arkansas. Hoxie business route. U.S. Highway 63 Business is a business route of in Lawrence County, Arkansas. Hardy business route. U.S. Highway 63 Business is a business route of in Sharp County, Arkansas. The route was originally the mainline US 63 route. West Plains business route. U.S. Highway 63 Business is a business route in West Plains, Missouri. It starts about north of Missouri Supplemental Highway ZZ, and locally is known as Bill Virdon  Blvd. As the road starts to turn to the west around Grace Ave., the road changes names to East Main St., passing by Ozark Action. About west of Ozark Action at Howell Ave., East Main St. turns off at Howell Ave., and the road is named Jackie Garrett Dr., after a local service station owner for many years. The station is at the corner of Porter Wagoner Blvd. and Broadway. Crossing Washington Ave near Court Square, the road changes names again to Broadway. After running as Broadway for about , the road turns toward the north again at Porter Wagoner Blvd ., where the Garrett service station stands, and remains that name until it meets back with US 63 near the Wayhaven area of West Plains. Willow Springs business route. U.S. Highway 63 Business is a business route in Willow Springs, Missouri, and coincides with Business US 60. Columbia connector route. A connector highway exists in Columbia, Missouri. This route begins/ends at US 63 and intersects Interstate 70 and Interstate 70 Business. Moberly business route. U.S. Highway 63 Business is a business route in Moberly, Missouri. Kirksville business route. U.S. Highway 63 Business is a business route in Kirksville, Missouri. Ottumwa  business route. U.S. Highway 63 Business is a business route in Ottumwa, Iowa. New Hampton business route. U.S. Highway 63 Business is a business route in New Hampton, Iowa. Former routings. Jonesboro business route. U.S. Highway 63 Business was a business route of U.S. Route 63 in Craighead County. The route ran through downtown Jonesboro until being redesignated Arkansas Highway 91 on October 27, 2006. US 63 BUS ran northwest from US 63 to meet AR 18. US 63 BUS/AR 18 became Highland Drive east across US 49/AR 1 and north with AR 141 (former US 49 BUS ). The route ran west as Dan Ave. to terminate at US 63. Marked Tree business route. U.S. Highway 63 Business (US 63B and Hwy. 63B) is a former business route of in Marked Tree, Poinsett County, Arkansas. The designation followed a former alignment of US 63. The Arkansas State Highway Commission designated this route in 1970 along a former alignment of US 63 through downtown Marked Tree. It was deleted when US 63 was rerouted to overlap US 49 between Brinkley and Jonesboro, thus removing US 63 from Interstate 555 (I-555), which it had overlapped between West Memphis and Jonesboro . This table reflects the highway's junctions upon decommissioning. Hazen spur. U.S. Route 63 Spur (US 63S and Hwy. 63S) was a spur route of in Hazen, Arkansas. The route was previously Arkansas Highway 11, and was later redesignated Highway 11 Spur.