Where is telephone country code 003579?

Answer 1

Telephone country codes never begin with zero.

Country code +357, dialed as 00 357 from many places, is Cyprus, and a number beginning with +357 9 is a mobile phone.

Country code +57, dialed as 003 57 from many places, is Colombia in South America. A number beginning with +57 9 is routed over the network of Movistar.

To avoid confusion, it is best to write an international telephone number in correct international format, beginning with the plus symbol and the correct telephone country code (e.g., +357 or +57), omitting any dialing prefix.

(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.)