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.

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 – 
+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:

Other places with no calling codes:

Complete listing

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
Telephone numbers
Communication-related lists