Area Code 36 – Avissawella, Colombo

Geographic Coverage and Administrative Jurisdiction

The +94 36 country calling code and area code combination is assigned to the geographic region of Avissawella, a town located in the Colombo District of Sri Lanka's Western Province. This area code serves the administrative and telecommunication needs of Avissawella and its surrounding suburbs, including Seethawaka and other nearby localities. The region is governed by the Avissawella Urban Council and falls under the purview of the Sri Lanka Telecommunications Regulatory Commission (TRC), which oversees the allocation and management of all national numbering resources.

Dialing Formats and Caller Instructions

For local callers within Sri Lanka, the national significant number (NSN) for Avissawella numbers is 10 digits long, beginning with the trunk prefix '0' followed by the area code '36' and the subscriber number (typically 7 digits). Thus, a local call is placed by dialing 036-XXXXXXX. When calling from abroad, the international format requires the country code +94, the area code without the leading '0', and the subscriber number, resulting in +94 36 XXXXXXX. For example, a typical Avissawella landline number might be formatted as +94 36 1234567 when dialed internationally.

Network Infrastructure and Numbering

Numbers under the 36 prefix are primarily allocated to fixed-line services provided by incumbent operator Sri Lanka Telecom (SLT) and other licensed fixed operators. These numbers are geographic in nature, meaning they are tied to a physical location, and are used for PSTN (Public Switched Telephone Network) and VoIP (Voice over Internet Protocol) services that are registered to addresses within the Avissawella exchange area. The subscriber number length can vary, but the total NSN length remains 10 digits, ensuring compliance with ITU-T E.164 recommendations.

Overlay and Future Considerations

As of the latest TRC updates, there is no overlay code for the 36 area, meaning that the area code is unique to this region. However, with the ongoing digitization and potential consolidation of exchanges, subscribers may experience changes in local dialing procedures. It is always advisable to confirm the current dialing format with your service provider. For callers from mobile networks within Sri Lanka, dialing 036-XXXXXXX is standard, and for international callers, the plus sign (+) or the international access prefix (e.g., 00 from most countries) must be used before the country code.