Area Code 31 – Dili
The phone area code for Dili is 31 (international format +67031). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Dili
Overview of Area Code 31 in Timor-Leste
Area code 31 is a geographic National Destination Code (NDC) assigned to the national capital and primary administrative center of Timor-Leste, Dili. Under the ITU-T E.164 international numbering plan, the full country calling code for Timor-Leste is +670. When dialing a fixed-line number in Dili from abroad, subscribers must use the international format +670 31 XXX XXX (or the local 8-digit format 31 XXX XXX).
Geographic Coverage and Administrative Jurisdiction
The 31 prefix serves the Dili Municipality, which includes the urban area of Dili and its surrounding suburbs and administrative posts (such as Cristo Rei, Dom Aleixo, Nain Feto, and Vera Cruz). As the seat of government and economic hub, Dili hosts most national institutions, foreign embassies, and major businesses, making the 31 code the most prominent geographic prefix in the country.
Dialing Formats and Caller Instructions
- Domestic calls (within Timor-Leste): Dial the 8-digit subscriber number directly, e.g., 31 234 567. No trunk prefix (such as 0) is used in Timor-Leste.
- International calls from abroad: Dial your country's international access prefix (e.g., 00, 011), then Timor-Leste's country code 670, followed by the area code and subscriber number: +670 31 234 567.
- Calls from Timor-Leste to another country: Dial the international prefix (00), then the destination country code and number.
Numbering Plan and Overlay Considerations
Timor-Leste's national numbering plan is closed, with all geographic numbers having a fixed length of 8 digits, including the NDC. Area code 31 is not overlaid with other geographic codes; the country uses distinct NDCs for different regions (e.g., 21 for Dili? actually 21 is also Dili? – verify). However, due to the small population and limited fixed-line penetration, number capacity is sufficient. No overlay or area code changes are currently planned.
Service and Usage Notes
Numbers under 31 are primarily used for PSTN (Public Switched Telephone Network) fixed-line services, including government offices, corporate headquarters, and residential lines in Dili. Some VoIP providers may also offer numbers with this prefix, but they are still geographically tied to Dili for routing purposes. When calling from a mobile phone, the same international format applies if you are abroad; within Timor-Leste, simply dial the 8-digit number.