List of country calling codes

Country CodeDialing codeCalling codeTelephone codecountry calling codecode for international direct dialinternational calling codeinternational dialing codeinternational dialling code+91
Country calling codes or country dial-in codes are telephone number prefixes for reaching telephone subscribers in the networks of the member countries or regions of the International Telecommunication Union (ITU).wikipedia
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North American Numbering Plan

Area codeArea codesArea code(s)
For example, the international call prefix in all countries belonging to the North American Numbering Plan is 011, while it is 00 in most European, Asian and African countries.
For international call routing, the NANP has been assigned the international calling code 1 by the International Telecommunications Union (ITU).

Telephone numbering plan

Area codeTelephone codearea codes
Country codes are a component of the international telephone numbering plan, and are necessary only when dialing a telephone number to establish a call to another country.
The standard defines a country calling code (country code) for each state or region which is prefixed to each national numbering plan telephone number for international destination routing.

List of international call prefixes

International Call Prefixinternational access code+
By convention, international telephone numbers are represented by prefixing the country code with a plus sign, which also indicates to the subscriber that the local international call prefix must first be dialed.
The international dialing prefix must be dialed before the country calling code and the destination telephone number.

Telephone numbers in South Africa

Area code+27031
When dialed from another country, the '0' is omitted and replaced with the appropriate international access code and the country code 27.

E.164

E.163e164.arpae164.org
The codes are defined by the ITU-T in standards E.123 and E.164.
The presentation of a number at the B-party device is usually prefixed with the plus sign, indicating that the number includes the country calling code.

International direct dialing

ISDInternational Direct DiallingIDD
The prefixes enable international direct dialing (IDD), and are also referred to as international subscriber dialing (ISD) codes.
Calls are initiated by dialing the international call prefix for the originating country, followed by the country calling code for the destination country, and finally the national telephone number of the destination.

Telephone number

phone numbertelephone numbersphone numbers
Country codes are a component of the international telephone numbering plan, and are necessary only when dialing a telephone number to establish a call to another country. Country calling codes or country dial-in codes are telephone number prefixes for reaching telephone subscribers in the networks of the member countries or regions of the International Telecommunication Union (ITU).
ITU-T recommendation E.123 describes how to represent an international telephone number in writing or print, starting with a plus sign and the country code.

Telephone numbers in Hungary

Area codeArea code(s)+36
The country code for Hungary is 36.

Area code 246

+1 246246+1246
Failure to include the prefix "1" results in accessing country calling code 246 of British Indian Ocean Territory (Diego Garcia).

Telephone numbers in Serbia

Area code+381(0)13+381(0)23
The country calling code of Serbia is +381.

Telephone numbers in Finland

+358FinlandTelephone numbering in Finland
All of Finland, including the Åland Islands, has the same country code, +358.

Telephone numbers in Montenegro

Area code+382Montenegro
Until Montenegro gained independence from Serbia and Montenegro, the nation was accessed through the international dialing code +381.

Area code 684

+1 684684+1-684
Access to telephones in this area from telephone outside the region need to be aware of the country code, which is "1".

Telephone numbers in Namibia

+264
Consequently, subscribers were required to use the international access code and country calling code, omitting the trunk code 0.