There is no telephone area code +1 255 in North America (USA, Canada, etc.).
Country code +255 is Tanzania in East Africa.
There is no area code 255 in Mexico.
(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.)
There is no area code +1 255 in North America (USA, Canada, etc.).
Telephone country code +255 is Tanzania.
(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 Sonsorol, Palau is 680, 255.
The country code and area code of Penafiel, Portugal is 351, 255.
The country code and area code of Portuguesa, Venezuela is 58, (0)255.
The country code and area code of Arusha, Tanzania is 255, (0)27.
The country code and area code of Markazi, Iran is 98, (0)255.
The country code and area code of Coast, Tanzania is 255, (0)23.
The country code and area code of Tanzania, Tanzania is 255, (0)4.
The country code and area code of IJmuiden, Netherlands is 31, (0)255.
The country code and area code of Caras - Severin, Romania is 40, (0)255.
The country code and area code of Arai- Niigata, Japan is 81, (0)255.
The country code and area code of Dodoma and Iringa, Tanzania is 255, (0)26.
The country code and area code of Dar es Salaam, Tanzania is 255, (0)22.