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Fixed Telephone numbers in Sri Lanka consist of 10-digits in the xxx y zzzzzz format where: xxx: represents the area code. All area codes begin with 0.
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 telephone dialling codes in the United Kingdom and the Crown Dependencies, which adopts an open telephone numbering plan for its public switched telephone network. The national telephone numbering plan is maintained by Ofcom , an independent regulator and competition authority for the UK communications industries.
No area codes: Telephone numbers in Singapore Sri Lanka: 9 +94: 00: Open: Telephone numbers in Sri Lanka Syria: 9 +963: 00: Telephone numbers in Syria Taiwan: 8 +886: 002, 005, 006, 007, 009, 019: Open: Telephone numbers in Taiwan Tajikistan: 9 +992: 8~10: Telephone numbers in Tajikistan Thailand: 6 +66: 001, 00x: Closed with 0: Telephone ...
Except for short codes and emergency numbers, all telephone numbers in Sri Lanka have ten digits (initial 0 + nine numbers). Landline phone numbers begin with the area code, then one digit for the operator code, then six digits for the primary telephone number. Format: (XXX Y ZZZZZZ) where: "xxx" denotes the area code.
ISO 3166-1 alpha-2 – two-letter country codes which are also used to create the ISO 3166-2 country subdivision codes and the Internet country code top-level domains. ISO 3166-1 alpha-3 – three-letter country codes which may allow a better visual association between the codes and the country names than the 3166-1 alpha-2 codes.
When printing telephone numbers this is indicated by a plus-sign (+) in front of a complete international telephone number, per recommendation E164 by the ITU. History The International Telecommunications Union (ITU) created country codes for international dialing, first introduced in 1960 for Europe and expanded globally in 1964.
Mobile phones use geographic area codes (two digits): after that, all numbers assigned to mobile service have nine digits, starting with 6, 7, 8 or 9 (example: 55 15 99999–9999). 90 is not possible, because collect calls start with this number.