Sri Lanka Telephone Area Code Finder

Sri Lanka uses a 10-digit open numbering plan published by the Telecommunications Regulatory Commission of Sri Lanka (TRCSL). A geographic (landline) number is made of three parts dialled back to back:

1. The national trunk prefix 0, dialled before any domestic call.
2. A 2-digit area code (AA) that identifies the region — 11 for Colombo, 81 for Kandy, 91 for Galle.
3. A 7-digit subscriber number (nnnnnnn) assigned by the exchange.

Put together, a domestic number is 0 AA nnnnnnn — exactly 10 digits, for example 081 234 5678. To convert to international form the finder follows ITU-T Recommendation E.164: drop the national trunk 0, prepend the country code +94, and keep the remaining 9-digit national significant number. So 081 234 5678 becomes +94 81 234 5678 and, compacted to E.164, +94812345678.

When you type letters, the tool runs a place-to-code lookup across a curated table of city names, districts, nearby towns, and common spelling variants, with a small fuzzy tolerance so galla still finds Galle. When you type digits, it strips spaces, hyphens, brackets, and any +94, 0094, or trunk 0, then reads the first two digits of the national number as the area code. Numbers in the 07Xrange are recognised as mobile — which, under Sri Lanka's number portability, map to no fixed region — and short codes such as 1919 are flagged as out of scope. This is a pure table lookup and string transformation: no estimates, and no data leaves your browser.

Each geographic code in the table is reconciled against the TRCSL numbering plan and the Sri Lanka Telecom regional dialling directory. Where a code could not be confirmed against both, it was omitted rather than guessed.

Every geographic area code in the national numbering plan, sorted by code. The 0-prefixed form is what you dial inside Sri Lanka; the +94 form is what you publish for international callers.

• TRCSL — National Numbering Plan (numbering manual, PDF)
• Sri Lanka Telecom — regional dialling / area code directory
• ITU-T Recommendation E.164 — international public telecommunication numbering plan

The 29 geographic codes on this page were last reconciled against the TRCSL numbering plan and the SLT directory on 2026-07-08. Any code that could not be confirmed against both sources was omitted rather than guessed.