Area Code 27 – Nanumaga

Overview of Tuvalu's +688 27 Geographic Code

The international dialing code +688 27 is assigned to the island of Nanumaga (also spelled Nanumanga), one of the northern reef islands of Tuvalu. This code is part of Tuvalu's national numbering plan, which follows ITU-T E.164 recommendations. As a geographic prefix, it routes calls to fixed-line subscribers within Nanumaga's administrative district. The island is a low-lying coral atoll with a small population, and its telecommunications infrastructure is primarily served by the national operator, Tuvalu Telecommunications Corporation (TTC).

Dialing Formats and Usage

To call a fixed-line number on Nanumaga from abroad, dial the international access prefix (e.g., 00 or +), followed by Tuvalu's country code 688, then the area code 27, and the subscriber's local number. For example, a local number might be formatted as 27XXXX (where XXXX is the 4-digit subscriber line). Thus, an international call would be placed as +688 27XXXX.

Within Tuvalu, callers must dial the full national number, which includes the area code. For instance, to call Nanumaga from another island, you would dial 27XXXX (without the country code). The national numbering plan uses a closed dialing plan, meaning the area code is always dialed, even for local calls within the same island.

Geographic and Administrative Context

Nanumaga is one of Tuvalu's nine inhabited islands, located approximately 400 kilometers north of the capital, Funafuti. The island's telephone services are limited, with a single exchange serving the community. The prefix 27 is exclusively used for fixed-line services; mobile and VoIP services in Tuvalu use different non-geographic prefixes. As with other remote Pacific islands, international connectivity relies on satellite links, which can affect call quality and latency.

Caller Instructions

• International callers: Dial your country's exit code (e.g., 011 from North America), then 688, then 27, and the local number. Example: 011 688 27XXXX.
• Callers within Tuvalu: Dial 27 followed by the local number (e.g., 27XXXX).
• Important: Do not add any extra digits or leading zeros; the area code is already included in the national number.

Given the small scale of the island's telecom network, there are no overlay codes or multiple operators. The prefix 27 is unambiguous and solely associated with Nanumaga. For the most current dialing procedures, especially for VoIP or satellite services, consult your service provider, as international routing may vary.