Country Code Lookup

How international dialing codes work

Every country is assigned an ITU-T E.164 country calling code — a 1–3 digit prefix dialed after the international access code (usually 00 or +). For example, +1 covers the US and Canada, +44 the UK, +90 Turkey.

ISO 3166-1 alpha-2 codes (US, GB, TR) are the two-letter codes used by browsers, telecoms and standards bodies to identify countries.