Area Code 42 – Nonouti

Overview of Kiribati Area Code 42

Area code 42 is a geographic National Destination Code (NDC) assigned to the island of Nonouti, part of the Gilbert Islands group in the Republic of Kiribati. Nonouti is the second-largest island in the Gilbert chain and serves as an administrative center for the southern Gilbert Islands. The code is used for fixed-line telephone services (PSTN) on the island, connecting residential, governmental, and business subscribers.

Geographic Coverage and Administration

Nonouti is located approximately 250 kilometers south of Tarawa, the capital of Kiribati. The island is divided into several villages, including Teuabu, Temotu, and Matang, all of which fall under the 42 NDC. The code is administered by the Telecommunications Authority of Kiribati (TAK) and is allocated exclusively for geographic numbering, meaning that the prefix is tied to the physical location of the subscriber's line.

Dialing Formats

To call a fixed-line number on Nonouti, callers must use the correct international and domestic formats. The complete international number consists of the country code +686, followed by the area code 42 and the subscriber's local number (typically 5 digits). For example, a local number might be 42 12345, which becomes +686 42 12345 when dialed from abroad.

• International dialing: +686 42 12345
• Domestic dialing (from other parts of Kiribati): 42 12345 (no trunk prefix is used; the country uses a closed numbering plan for domestic calls, so you simply dial the NDC and subscriber number).
• Local dialing (within Nonouti): 12345 (the area code is omitted for on-island calls).

Caller Instructions

For callers from outside Kiribati: Dial the international access code (e.g., 00 from most countries, or + from mobile phones), then the Kiribati country code 686, followed by the area code 42 and the local number. Ensure you drop any leading '0' that might appear in local listings, as Kiribati numbers do not use a trunk prefix.

For callers within Kiribati but outside Nonouti: Simply dial 42 followed by the local number. No additional codes are required.

Overlay and Numbering Considerations

Currently, there is no overlay code for Nonouti; the 42 NDC is the sole geographic code for the island. As of the latest ITU-T E.164 national numbering plan, Kiribati has not introduced number portability for fixed lines, so the area code remains a reliable indicator of the subscriber's geographic location. However, with the increasing adoption of VoIP and mobile services, some businesses may use non-geographic numbers, but these are distinct from the 42 prefix.

Practical Usage

Area code 42 is essential for reaching government offices, health centers, and local businesses on Nonouti. For example, the Nonouti Island Council can be reached at +686 42 21000 (illustrative). When storing contacts, always include the full international format to avoid dialing errors when traveling.