Country code +357 (dialed as 00 357 or 011 357 from many places) is Cyprus.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
The country code and area code of Famagusta, Cyprus- Republic of is 357, 23.
The country code for Cyprus is +357.
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a country code.
Country code +357 is Cyprus.
Cyprus is telephone country code +357. There are no area codes or city codes. All subscriber numbers are 8 digits. Just dial +357 (on a mobile phone or cell phone) or 011 357 (otherwise), followed by the 8-digit Cypriot domestic telephone number.
Fiji has telephone country code +679.
Country code +57 is Colombia.
Gibraltar is country code +350.
Moldova is country code +373.
Slovenia is country code +386.