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Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD). Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's.
This is a list of international dialing prefixes used in various countries for direct dialing of international telephone calls.These prefixes are typically required only when dialling from a landline, while in GSM-compliant mobile phone (cell phone) systems, the symbol + before the country code may be used irrespective of where the telephone is used at that moment; the network operator ...
Country name Region Country Code International Call Prefix Dialing plan Main article Afghanistan 9 +93: 00: Telephone numbers in Afghanistan Armenia 3 +374: 00: Telephone numbers in Armenia
179XX for VoIP prefixes, added before the number to call. (e.g. 17951-139-0000-0000) 18x China Unicom: 185-186 ... List of country calling codes; Notes
Calling codes in Europe. Telephone numbers in Europe are managed by the national telecommunications authorities of each country. Most country codes start with 3 and 4, but some countries that by the Copenhagen criteria are considered part of Europe have country codes starting on numbers most common outside of Europe (e.g. Faroe Islands of Denmark have a code starting on number 2, which is most ...
Quick Take: List of Scam Area Codes. More than 300 area codes exist in the United States alone which is a target-rich environment for phone scammers.
Country name Country Code International Call Prefix Main article Central Africa Angola +244: 00: Telephone numbers in Angola Cameroon +237: 00: Telephone numbers in Cameroon
1. Check or uncheck, “I have to dial this number to turn off call waiting.” 2. Confirm the proper code is listed. For most telephone services, this code is *70. Note: If your connection problems persist, try removing the checkmark for call waiting. Dialing *70 can prevent the call from completing when the phone line does not have the call ...