Sri Lanka Phone Number Format & Operator Lookup

Sri Lanka uses a 10-digit open numbering plan published by the Telecommunications Regulatory Commission of Sri Lanka (TRCSL). Every number is a trunk 0 followed by a two-digit network or area code and seven subscriber digits — nine digits in total after the 0. The tool parses your input in four deterministic steps; there is no maths and no network call.

1. Normalise. Spaces, dashes, dots and brackets are stripped. A leading +94, 0094 or bare 94 country code is converted to the national form, and a stray trunk 0 left after the country code (the common +94 0 77… mistake) is removed. The result is a canonical nine-digit national significant number.
2. Validate. The number must contain only digits and resolve to exactly nine national digits. Anything else returns a specific reason — too short, too long, a non-94 country code, or a stray character — instead of a silent failure.
3. Classify. If the code starts with 7 it is a mobile number, and the two-digit code maps to the operator it was originally allocated to. Otherwise the two-digit code is matched against the TRCSL geographic area-code table to find the city, district and province. Unallocated codes (such as 073 or 079) are reported as invalid rather than guessed.
4. Format. Per ITU-T E.164, the trunk 0 is a national prefix dropped in international form. The tool emits the local 0XX XXX XXXX, the international +94 XX XXX XXXX, and the gateway 94XXXXXXXXX and 0094… forms, then cross-checks them by reconstructing the local form back from the generated E.164 string. When the two agree, the “E.164 round-trips” badge is shown.

Mobile network codes (07X)

The two digits after the 0 identify the operator the prefix was allocated to. Sri Lanka has four mobile networks. The 075 band was originally Airtel, which merged into Dialog.

Fixed-line area codes (0XX)

Geographic codes identify the region of a landline, not the carrier — SLT and Lanka Bell can both serve the same code. Here is the full set across all nine provinces.

• TRCSL — Sri Lanka Numbering Plan (mobile codes & area codes)
• TRCSL — Numbering Plan manual (10-digit open numbering, PDF)
• ITU-T E.164 — international numbering plan (country code +94)
• TRCSL — Mobile Number Portability consultation (2026 launch)

Prefix and area-code mappings were last cross-checked against the TRCSL numbering plan on 2026-06-21. Operator reflects the original prefix allocation; the page is reviewed when TRCSL updates allocations or when Mobile Number Portability changes how operators map to numbers.