දේශීය ඇමතුම් සංකේත ලැයිස්තුව

මෙය ITU-T නිර්දේශිත E.123 සහ E.164 විසින් නිශ්චිත කරන ලද දේශීය ඇමතුම් සංකේත ලැයිස්තුවකි, IDD (ජාත්‍යන්තර ඍජු අංකන) හෝ ISD (ජාත්‍යන්තර ග්‍රාහක අංකන) සංකේත ලෙසද මෙය හඳුන්වනු ලබයි.

දුරකථන පද්ධතියක් සඳහා වූ දුරකථන අංක යෙදීම් සැලැස්ම තුල ජාත්‍යන්තර අංකන උපසර්ගයක් අඩංගු වේ, නිදසුනක් ලෙස අමතන්නා අංකනය කරන්නේ කුමන රටකින්ද කියා විශේෂණය කිරීම සඳහා දේශීය ඇමතුම් සංකේතයට පෙර යොදන "00" හෝ "011" ගත හැක. සාමාන්‍යයෙන්, පහත දැක්වෙන ලයිස්තුවේ අඩංගු වෙන පරිදි, මෙම උපසර්ගය සඳහා අවශ්‍යතාවය "+" සමඟ විශේෂණය වේ.

 බැලූ බැල්මට 
Country calling codes form a prefix code; hence, they can be organized as a tree. In each row of the table below, the country codes given in the leftmost column share the same first digit; then subsequent columns give the second digit in ascending order.
 0 1 2 3 4 5 6 7 8 9+1: US, CA (see NANP)+1 242: BS
+1 246: BB
+1 264: AI
+1 268: AG
+1 284: VG+1 340: VI
+1 345: KY+1 441: BM
+1 473: GD+1 649: TC
+1 664: MS
+1 670: MP
+1 671: GU
+1 684: AS+1 721: SXnot yet implemented
+1 758: LC
+1 767: DM
+1 784: VC
+1 787: PR+1 809: DO
+1 829: DO
+1 849: DO
+1 868: TT
+1 869: KN
+1 876: JM+1 939: PR+20: EG+210: --
+211: SS
+212: MA, EH
+213: DZ
+214: --
+215: --
+216: TN
+217: --
+218: LY
+219: --+220: GM
+221: SN
+222: MR
+223: ML
+224: GN
+225: CI
+226: BF
+227: NE
+228: TG
+229: BJ+230: MU
+231: LR
+232: SL
+233: GH
+234: NG
+235: TD
+236: CF
+237: CM
+238: CV
+239: ST+240: GQ
+241: GA
+242: CG
+243: CD
+244: AO
+245: GW
+246: IO
+247: AC
+248: SC
+249: SD+250: RW
+251: ET
+252: SO, QS
+253: DJ
+254: KE
+255: TZ
+256: UG
+257: BI
+258: MZ
+259: --+260: ZM
+261: MG
+262: RE, YT
+263: ZW
+264: NA
+265: MW
+266: LS
+267: BW
+268: SZ
+269: KM+27: ZA+28: --+290: SH, TA
+291: ER
+292: --
+293: --
+294: --
+295: --
+296: --
+297: AW
+298: FO
+299: GL+30: GR+31: NL+32: BE+33: FR+34: ES+350: GI
+351: PT
+352: LU
+353: IE
+354: IS
+355: AL
+356: MT
+357: CY
+358: FI, AX
+359: BG+36: HU+370: LT
+371: LV
+372: EE
+373: MD
+374: AM, QN
+375: BY
+376: AD
+377: MC
+378: SM
+379: VA+380: UA
+381: RS
+382: ME
+383: --
+384: --
+385: HR
+386: SI
+387: BA
+388: EU
+389: MK+39: IT, VA+40: RO+41: CH+420: CZ
+421: SK
+422: --
+423: LI
+424: --
+425: --
+426: --
+427: --
+428: --
+429: --+43: AT+44: GB/UK, GG, IM, JE+45: DK+46: SE+47: NO, SJ+48: PL+49: DE+500: FK
+501: BZ
+502: GT
+503: SV
+504: HN
+505: NI
+506: CR
+507: PA
+508: PM
+509: HT+51: PE+52: MX+53: CU+54: AR+55: BR+56: CL+57: CO+58: VE+590: GP, BL, MF
+591: BO
+592: GY
+593: EC
+594: GF
+595: PY
+596: MQ
+597: SR
+598: UY
+599: AN  (BQ, CW, SX)+60: MY+61: AU, CX, CC+62: ID+63: PH+64: NZ+65: SG+66: TH+670: TL
+671: --
+672: NF, AQ
+673: BN
+674: NR
+675: PG
+676: TO
+677: SB
+678: VU
+679: FJ+680: PW
+681: WF
+682: CK
+683: NU
+684: --
+685: WS
+686: KI
+687: NC
+688: TV
+689: PF+690: TK
+691: FM
+692: MH
+693: --
+694: --
+695: --
+696: --
+697: --
+698: --
+699: --+7: RU, KZ+800: XT
+801: --
+802: --
+803: --
+804: --
+805: --
+806: --
+807: --
+808: XS
+809: --+81: JP+82: KR+83: --+84: VN+850: KP
+851: --
+852: HK
+853: MO
+854: --
+855: KH
+856: LA
+857: XN
+858: XN
+859: --+86: CN+870: XN
+871: --
+872: --
+873: --
+874: --
+875: --
+876: --
+877: --
+878: XP
+879: --+880: BD
+881: XG
+882: XV
+883: XL
+884: --
+885: --
+886: TW
+887: --
+888: XD
+889: --+89: --+90: TR, QY+91: IN+92: PK+93: AF+94: LK+95: MM+960: MV
+961: LB
+962: JO
+963: SY
+964: IQ
+965: KW
+966: SA
+967: YE
+968: OM
+969: --+970: PS
+971: AE
+972: IL
+973: BH
+974: QA
+975: BT
+976: MN
+977: NP
+978: --
+979: XR+98: IR+990: --
+991: XC
+992: TJ
+993: TM
+994: AZ
+995: GE
+996: KG
+997: --
+998: UZ
+999: --

 ගැඹුරට යත්ම 
While there is a general geographic grouping to the zones, many exceptions exist for various political and historical reasons. Thus, the geographical indicators below are approximations only.

 1 වන කලාපය– North American Numbering Plan Area 

Countries within NANP (North American Numbering Plan) administered areas are assigned area codes as if they were all within one country. The codes below in format +1 XXX represent area code XXX within the +1 NANP zone – not a separate country code.

The North American Numbering Plan Area includes:
+1 
+1 , including U.S. territories:
+1 340 
+1 670 
+1 671 
+1 684 
+1 787 / 939 
+1 Many, but not all, Caribbean nations:
+1 242 
+1 246 
+1 264 
+1 268 
+1 284 
+1 345 
+1 441 
+1 473 
+1 649 
+1 664 
+1 758 
+1 767 
+1 784 
+1 809 / 829 / 849 
+1 868 
+1 869 
+1 876 

 Zone 2 – Mostly Africa 
(but also, for example Aruba, Faroe Islands and Greenland)
+20 – 
+210 – unassigned
+211 – 
+212 – 
+212 5288 / 5289 – 
+213 – 
+214 – unassigned
+215 – unassigned
+216 – 
+217 – unassigned
+218 – 
+219 – unassigned
+220 – 
+221 – 
+222 – 
+223 – 
+224 – 
+225 – 
+226 – 
+227 – 
+228 – 
+229 – 
+230 – 
+231 – 
+232 – 
+233 – 
+234 – 
+235 – 
+236 – 
+237 – 
+238 – 
+239 – 
+240 – 
+241 – 
+242 – 
+243 – 
+244 – 
+245 – 
+246 – 
+247 – 
+248 – 
+249 – 
+250 – 
+251 – 
+252 – 
+253 – 
+254 – 
+255 – 
+255 24 – , in place of never-implemented +259
+256 – 
+257 – 
+258 – 
+259 – unassigned, was intended for Zanzibar but never implemented – see +255 Tanzania
+260 – 
+261 – 
+262 – 
+262 269 / 639 –  (land / mobile, formerly with +269 Comoros)
+263 – 
+264 – 
+265 – 
+266 – 
+267 – 
+268 – 
+269 –  (Mayotte was here but moved to +262 Réunion)
+27 – 
+28x – unassigned
+290 – 
+290 8 – 
+291 – 
+292 – unassigned
+293 – unassigned
+294 – unassigned
+295 – discontinued (was assigned to San Marino, see +378)
+296 – unassigned
+297 – 
+298 – 
+299 – 

 Zones 3/4 – යුරෝපය 
Originally larger countries, such as the United Kingdom or France, were assigned two-digit codes (to compensate for their usually longer domestic numbers) and small countries, such as Iceland, were assigned three-digit codes; however, since the 1980s, all new assignments have been three-digit regardless of countries’ populations.

+30 – 
+31 – 
+32 – 
+33 – 
+34 – 
+350 – 
+351 – 
+352 – 
+353 – 
+354 – 
+355 – 
+356 – 
+357 – 
+358 – 
+359 – 
+36 – 
+37 – discontinued (was assigned to the German Democratic Republic (නැගෙනහිර ජර්මනිය) until April 1992; this area is now covered by ජර්මනියේ country code +49)
+370 – 
+371 – 
+372 – 
+373 – 
+374 – 
+374 47 / 97 –  (landlines / mobile phones)
+375 – 
+376 – 
+377 – 
+377 44 / 45 –  (mobile phone networks)
+378 – 
+379 –  assigned but uses +39 Italy.
+38 – discontinued (was assigned to Yugoslavia before break-up)
+380 – 
+381 – 
+381 28 / 29 / 38 / 39 –  for landlines but +377 Monaco and +386 Slovenia for mobile phones.
+382 – 
+383 – unassigned
+384 – unassigned
+385 – 
+386 – 
+386 43 / 49 –  (mobile phone networks)
+387 – 
+388 – unassigned (was: shared code for groups of nations, withdrawn)
+389 – 
+39 – 
+39 06 698 –  (surrounded entirely by Rome)
+40 – 
+41 – 
+42 – previously assigned to Czechoslovakia until its breakup. Czech Republic and Slovakia used this common code until 1 March 1997.
+420 – 
+421 – 
+422 – unassigned
+423 –  (formerly +41 75)
+424 – unassigned
+425 – unassigned
+426 – unassigned
+427 – unassigned
+428 – unassigned
+429 – unassigned
+43 – 
+44 – 
+44 1481 – 
+44 1534 – 
+44 1624 – 
+45 – 
+46 – 
+47 – 
+48 – 
+49 – 

 Zone 5 – Mostly Latin America 
+500 – 
+501 – 
+502 – 
+503 – 
+504 – 
+505 – 
+506 – 
+507 – 
+508 – 
+509 – 
+51 – 
+52 – 
+53 – 
+54 – 
+55 – 
+56 – 
+57 – 
+58 – 
+590 –  (including Saint Barthélemy, Saint Martin)
+591 – 
+592 – 
+593 – 
+594 – 
+595 – 
+596 – 
+597 – 
+598 – 
+599 – Former , now grouped as follows:
+599 3 – 
+599 4 – 
+599 5 – 
+599 7 – 
+599 9 – 

 Zone 6 – අග්නිදිග ආසියාව and Oceania 
+60 – 
+61 –  (see also +672 below)
+61 8 9162 – 
+61 8 9164 – 
+62 – 
+63 – 
+64 – 
+65 – 
+66 – 
+670 –  - formerly Northern Mariana Islands which is now included in NANPA as code +1-670 (See Zone 1, above)
+671 – formerly Guam – Now included in NANPA as code +1-671 (See Zone 1, above)
+672 – ඕස්ට්‍රේලියානු External Territories (see also +61 ඕස්ට්‍රේලියාව above)
+672 1x –  ඕස්ට්‍රේලියානු Antarctic Territory
+672 3 – 
+673 – 
+674 – 
+675 – 
+676 – 
+677 – 
+678 – 
+679 – 
+680 – 
+681 – 
+682 – 
+683 – 
+684 – formerly American Samoa – Now included in NANPA as code +1-684 (See Zone 1, above)
+685 – 
+686 – 
+687 – 
+688 – 
+689 – 
+690 – 
+691 – 
+692 – 
+693 – unassigned
+694 – unassigned
+695 – unassigned
+696 – unassigned
+697 – unassigned
+698 – unassigned
+699 – unassigned

 Zone 7 – Eurasia (former සෝවියට් සංගමය) 
+7 –  (managed by Russia; some codes assigned to territories outside Russia).
+7 6xx, 7xx – 
+7 840, 940 – 

 Zone 8 – East Asia and Special Services 
+800 – International Freephone (UIFN)
+801 – unassigned
+802 – unassigned
+803 – unassigned
+804 – unassigned
+805 – unassigned
+806 – unassigned
+807 – unassigned
+808 – reserved for Shared Cost Services
+809 – unassigned
+81 – 
+82 – 
+83x – unassigned
+84 – 
+850 – 
+851 – unassigned
+852 – 
+853 – 
+854 – unassigned
+855 – 
+856 – 
+857 – ANAC satellite service
+858 – ANAC satellite service
+859 – unassigned
+86 – 
+870 – Inmarsat "SNAC" service 
+871 – unassigned (formerly used by Inmarsat, Atlantic East), discontinued in 2008
+872 – unassigned (formerly used by Inmarsat, Pacific), discontinued in 2008
+873 – unassigned (formerly used by Inmarsat, Indian), discontinued in 2008
+874 – unassigned (formerly used by Inmarsat, Atlantic West), discontinued 2008
+875 – reserved for Maritime Mobile service
+876 – reserved for Maritime Mobile service
+877 – reserved for Maritime Mobile service
+878 – Universal Personal Telecommunications services
+879 – reserved for national non-commercial purposes
+880 – 
+881 – Global Mobile Satellite System
+882 – International Networks
+883 – International Networks
+884 – unassigned
+885 – unassigned
+886 – 
+887 – unassigned
+888 – Telecommunications for Disaster Relief by OCHA
+889 – unassigned
+89x – unassigned

 Zone 9 – Central, South and Western Asia 
+90 – 
+90 392 – 
+91 – 
+92 – 
+93 – 
+94 – 
+95 – 
+960 – 
+961 – 
+962 – 
+963 – 
+964 – 
+965 – 
+966 – 
+967 – 
+968 – 
+969 – unassigned – originally People's Democratic Republic of Yemen, now covered under 967 Yemen (formerly the Yemen Arab Republic)
+970 – 
+971 – 
+972 – 
+973 – 
+974 – 
+975 – 
+976 – 
+977 – 
+978 – unassigned – originally assigned to Dubai, now covered under 971
+979 – International Premium Rate Service - originally assigned to Abu Dhabi, now covered under 971
+98 – 
+990 – unassigned
+991 – International Telecommunications Public Correspondence Service trial (ITPCS)
+992 – 
+993 – 
+994 – 
+995 – 
 +995 44 – GNCC Communication of 30.III.2010
+996 – 
+997 – unassigned
+998 – 
+999 – reserved for future global service

 Locations with no country code 

In Antarctica dialing is dependent on the parent country of each base:

 Base  Calling Code  Country Aboa  +358   Almirante Brown Antarctic Base  +54   Amundsen-Scott South Pole Station  +1   Artigas Base  +598   Asuka Station  +81   Base Presidente Eduardo Frei Montalva and Villa Las Estrellas  +56   Belgrano II  +54   Bellingshausen Station  +7   Bernardo O'Higgins Station  +56   Byrd Station  +1   Captain Arturo Prat Base  +56   Casey Station  +672   Comandante Ferraz Brazilian Antarctic Base  +55   Concordia Station  +39  +33   Dakshin Gangotri Station  +91 (Abandoned)   Davis Station  +672   Dome Fuji Station  +81   Dumont d'Urville Station  +33   Esperanza Base  +54   Gabriel de Castilla Spanish Antarctic Station  +34   Georg von Neumayer Station  +49 (Replaced by Neumayer Station)   Gonzalez Videla Station  +56   Great Wall Station  +86   Halley Research Station  +44   Henryk Arctowski Polish Antarctic Station  +48   Jinnah Antarctic Station  +92   Juan Carlos I Base  +34   Jubany  +54   King Sejong Station  +82   Kohnen-Station  +49   Kunlun Station  +86   Law-Racoviţă Station  +40   Leningradskaya Station  +7   Machu Picchu Research Station  +51   Macquarie Island Station  +672   Maitri Station  +91   Marambio Base  +54   Mario Zucchelli Station  +39   Mawson Station  +672   McMurdo Station  +1   Mendel Polar Station  +420   Mirny Station  +7   Mizuho Station  +81   Molodyozhnaya Station  +7  +375   Neumayer Station  +49   Novolazarevskaya Station  +7   Orcadas Base  +54   Palmer Station  +1   Princess Elisabeth Base  +32   Professor Julio Escudero Base  +56   Progress Station  +7   Rothera Research Station  +44   Russkaya Station  +7   San Martín Station  +54   SANAE IV (South African National Antarctic Expeditions)  +27   Signy Research Station  +44   St. Kliment Ohridski Base  +359   Scott Base  +64   Showa Station  +81   Svea  +46   Tor Station  +47   Troll Station  +47   Wasa Station  +46   Vostok Station  +7   Vernadsky Research Base  +380   Zhongshan (Sun Yat-Sen) Station  +86  

Other places with no calling codes:

 Location  Calling Code  Country  Reasons for no Code Kerguelen Archipelago  None    No permanent local switches Pitcairn Island  +64   British overseas territory  No connections to local switching; there are only satellite phones on the island, replacing a single wired party line; a single pay phone also exists

 Complete listing 

 Country or Service Code Abkhazia +7 840, +7 940, +995 44 Afghanistan +93 Åland Islands +358 Albania +355 Algeria +213 American Samoa +1 684This country or territory is part of the North American Numbering Plan (NANP), even though it may be geographically far from North America (Mexico is not included).  The country code for all NANP countries is 1; the numbers that follow are used in the same way as area codes are in the U.S. and Canada. ANAC Satellite +857, +858 Andorra +376 Angola +244 Anguilla +1 264 Antigua and Barbuda +1 268 Argentina +54 Armenia +374 Aruba +297 Ascension +247 ඕස්ට්‍රේලියාව +61 ඕස්ට්‍රේලියානු External Territories +672 Austria +43 Azerbaijan +994 Bahamas +1 242 Bahrain +973 Bangladesh +880 Barbados +1 246 Barbuda +1 268 Belarus +375 Belgium +32 Belize +501 Benin +229 Bermuda +1 441 Bhutan +975 බොලිවියාව +591 Bonaire +599 7 Bosnia and Herzegovina +387 Botswana +267 Brazil +55 British Indian Ocean Territory +246 British Virgin Islands +1 284 Brunei Darussalam +673 Bulgaria +359 Burkina Faso +226 Burundi +257 Cambodia +855 Cameroon +237 Canada +1 Cape Verde +238 Caribbean Netherlands +599 3, +599 4, +599 7 Cayman Islands +1 345 Central African Republic +236 Chad +235 Chatham Island (New Zealand) +64 Chile +56 China +86 Christmas Island +61 Cocos (Keeling) Islands +61 Colombia +57 Comoros +269 Congo (Brazzaville) +242 Congo, The Democratic Republic of the (Zaire) +243 Cook Islands +682 Costa Rica +506 Côte d'Ivoire +225 Croatia +385 Cuba +53 Cuba (Guantanamo Bay) +53 99 Curaçao +599 9 Cyprus +357 Czech Republic +420 Denmark +45 Diego Garcia +246 Djibouti +253 Dominica +1 767 Dominican Republic +1 809, +1 829, +1 849 East Timor +670 Easter Island +56 Ecuador +593 ඊජිප්තුව +20 El Salvador +503 Ellipso (Mobile Satellite service) +881 2, +881 3 EMSAT (Mobile Satellite service) +882 13 Equatorial Guinea +240 Eritrea +291 Estonia +372 ඉතියෝපියාව +251 Falkland Islands (Malvinas) +500 Faroe Islands +298 Fiji +679 Finland +358 France +33 French Antilles +596 French Guiana +594 French Polynesia +689 Gabon +241 Gambia +220 Georgia +995 ජර්මනිය +49 Ghana +233 Gibraltar +350 Global Mobile Satellite System (GMSS) +881 Globalstar (Mobile Satellite Service) +881 8, +881 9 Greece +30 Greenland +299 Grenada +1 473 Guadeloupe +590 Guam +1 671 Guatemala +502 Guernsey +44 Guinea +224 Guinea-Bissau +245 Guyana +592 Haiti +509 Holy See (Vatican City State) +39 066, assigned +379 Honduras +504 Hong Kong +852 Hungary +36 Iceland +354 ICO Global (Mobile Satellite Service) +881 0, +881 1 India +91 ඉන්දුනීසියාව +62 Inmarsat SNAC +870 International Freephone Service +800 International Shared Cost Service (ISCS) +808 Iran +98 Iraq +964 Ireland +353 Iridium (Mobile Satellite service) +881 6, +881 7 Isle of Man +44 Israel +972 Italy +39 Jamaica +1 876 Japan +81 Jersey +44 Jordan +962 Kazakhstan +7 6, +7 7Russia, Kazakhstan, and Abkhazia make up the Seventh World Numbering Zone. From August 2007, Kazakhstan changed all area codes to start with 7; however, 6 is also reserved for Kazakhstan. Digits 3, 4, and 5 are reserved for Russia. Abkhazia was assigned +7 840 for landline and +7 940 for mobile operators on 28 September 2009. Abkhazia will also continue using +995 44. Other digits are reserved for Russia. Currently, there are no internationally accessible numbers starting with 0, 1, 2 or 5 – these are access codes and similar arrangements. Kenya +254 Kiribati +686 North Korea +850 දකුණු කොරියාව +82 Kuwait +965 Kyrgyzstan +996 Laos +856 Latvia +371 Lebanon +961 Lesotho +266 Liberia +231 Libya +218 Liechtenstein +423 Lithuania +370 Luxembourg +352 Macau +853 Macedonia +389 Madagascar +261 Malawi +265 Malaysia +60 Maldives +960 Mali +223 Malta +356 Marshall Islands +692 Martinique +596 Mauritania +222 Mauritius +230 Mayotte +262 Mexico +52 Micronesia, Federated States of +691 Midway Island +1 808 Moldova +373 Monaco +377 Mongolia +976 Montenegro +382 Montserrat +1 664 Morocco +212 Mozambique +258 Myanmar +95 Namibia +264 Nauru +674 Nepal +977 Netherlands +31 Netherlands Antilles +599 Nevis +1 869 New Caledonia +687 New Zealand +64 Nicaragua +505 Niger +227 Nigeria +234 Niue +683 Norfolk Island +672 Northern Mariana Islands +1 670 Norway +47 Oman +968 Pakistan +92 Palau +680 Palestinian territories +970 Panama +507 Papua New Guinea +675 Paraguay +595 Peru +51 Philippines +63 Poland +48 පෘතුගාලය +351 Puerto Rico +1 787, +1 939 Qatar +974 Réunion +262 Romania +40 රුසියාව +7 Rwanda +250 Saba +599 4 Saint Barthélemy +590 Saint Helena, Ascension and Tristan da Cunha +290 Saint Kitts and Nevis +1 869 Saint Lucia +1 758 Saint Martin (French) +590 Saint Pierre and Miquelon +508 Saint Vincent and the Grenadines +1 784 Samoa +685 San Marino +378 São Tomé and Príncipe +239 Saudi Arabia +966 Senegal +221 Serbia +381 Seychelles +248 Sierra Leone +232 Singapore +65 Sint Eustatius +599 3 Sint Maarten (Dutch) +599 5 Slovakia +421 Slovenia +386 Solomon Islands +677 Somalia +252 South Africa +27 South Georgia and the South Sandwich Islands +500 ස්පාඤ්ඤය +34 Sri Lanka +94 Sudan +249 Suriname +597 Svalbard and Jan Mayen +47 Swaziland +268 ස්වීඩනය +46 Switzerland +41 Syria +963 Taiwan +886 Tajikistan +992 Tanzania +255 Thailand +66 Thuraya (Mobile Satellite service) +882 16 Togo +228 Tokelau +690 Tonga +676 Trinidad and Tobago +1 868 Tunisia +216 Turkey +90 Turkmenistan +993 Turks and Caicos Islands +1 649 Tuvalu +688 Uganda +256 Ukraine +380 United Arab Emirates +971 United Kingdom +44 United States +1 Universal Personal Telecommunications (UPT) +878 Uruguay +598 Uzbekistan +998 Vanuatu +678 Venezuela +58 Vatican City State (Holy See) +39 066, assigned +379 Vietnam +84 Virgin Islands, British +1 284 Virgin Islands, US +1 340 Wake Island +1 808 Wallis and Futuna +681 Yemen +967 Zambia +260 Zanzibar +255 Zimbabwe +263

 History 
CCITT, the predecessor of the ITU Telecommunication Standardization Sector (ITU-T), developed the first formal list of telephone country codes. This list was included in the 1964 CCITT Blue Book, among other international telecommunication recommendations, which would eventually become ITU-T recommendation E.164.

An earlier system of country codes for European use was mentioned in the 1960 CCITT Red Book. Some of these country codes were retained in the CCITT country code assignments and remain in effect (for example, France +33, United Kingdom +44).

For further details on country code history and development, see History of Country Codes  (WTNG ).

 See also 
E.164
International Telecommunication Union
List of international call prefixes
International mobile phone codes
Telephone numbering plan
Group identifiers in ISBNs, a similar form of country code
Local conventions for writing telephone numbers

 References 

 External links 

 List of ITU-T Recommendation E.164 assigned country codes as of 15 Dec 2016
 List of ITU-T Recommendation E.164 Dialling Procedures as of 1 March 2010
 Telephone and Internet Country Codes in 10 Languages 
 World Telephone Numbering Guide 
 Comfi Dialing Codes 

ITU list
ප්‍රවර්ගය:Telephone numbers
ප්‍රවර්ගය:Communication-related lists