(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 telephone country code for Vietnam is +84. The area code for Bac Kan is 0281, or +84 281 in international format.
Leichtenstein is telephone country code +423.
The country code and area code of Tavira, Portugal is 351, 281.
The country code and area code of Heraclion, Greece is 30, 281.
where is telephone country code 1816
That is not a country code.
The country code and area code of Wesel, Germany is 49, (0)281.
The country code and area code of Jmail, Libya is 218, (0)281.
The country code and area code of Camenca, Moldova is 373, (0)281.
The country code and area code of Vansbro, Sweden is 46, (0)281.
The country code and area code of Qazvin, Iran is 98, (0)281.
There is no 909 country code.