Sri Lanka is telephone country code +94. All numbers have 9 digits after the country code.
In international format, you must drop the trunk prefix '0' from the beginning of the Sri Lankan number. For example, Colombo's area code 011 becomes +94 11.
Mobile numbers begin with +94 7.
(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.)
Sri Lanka is country code +94. Note that you must drop the trunk prefix 0 from the Sri Lankan area code when dialing internationally.
Colombo is area code 011, which becomes +94 11 from outside Sri Lanka.
(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, and many other countries use different prefixes.)
Do not confuse Colombo's area code 011 with the North American access prefix 011.
The country code and area code of Colombo, Sri Lanka is 94, (0)1.
00034 Negombo Branch
The country code and area code of Nawalapitiya, Sri Lanka is 94, (0)54.
The country code and area code of Mannar, Sri Lanka is 94, (0)23.
The country code and area code of Matara, Sri Lanka is 94, (0)41.
The country code and area code of Anuradhapura, Sri Lanka is 94, (0)25.
The country code and area code of Panadura, Sri Lanka is 94, (0)38.
The country code and area code of Kurunegala, Sri Lanka is 94, (0)37.
The country code and area code of Ratnapura, Sri Lanka is 94, (0)45.
The country code and area code of Badulla, Sri Lanka is 94, (0)55.
The country code and area code of Ampara, Sri Lanka is 94, (0)63.
The country code and area code of Awissawella, Sri Lanka is 94, (0)36.
The country code and area code of Batticaloa, Sri Lanka is 94, (0)65.