Area Code 73 – Ngaremlengui State

Overview of Area Code 73 (Ngaremlengui State)

Area code 73 is a geographic National Destination Code (NDC) assigned to the Ngaremlengui State in the Republic of Palau. Palau's national numbering plan, administered under the ITU-T E.164 standard, uses the country calling code +680. Within Palau, geographic area codes are allocated to specific states or regions, and 73 specifically routes calls to fixed-line subscribers in Ngaremlengui, a state located on the western coast of Babeldaob Island, the largest island in Palau.

Geographic Coverage and Administrative Jurisdiction

Ngaremlengui State is one of the sixteen states of Palau and is situated in the western part of Babeldaob. The state includes several hamlets and villages, with the administrative center being Ngerubeasang. The area code 73 covers all fixed-line telephone services within this jurisdiction, including government offices, businesses, and residential lines. It is important to note that mobile numbers in Palau do not use geographic area codes; they are assigned non-geographic prefixes, so 73 is exclusively for fixed-line services.

Dialing Formats

For local callers within Palau, dialing a number in Ngaremlengui requires only the seven-digit subscriber number, which includes the area code. For example, to call a fixed line in Ngaremlengui, a local caller would dial:

• 73X XXXX (where X represents the local subscriber digits).

For international callers, the full international format must be used. The sequence is: the international access prefix (typically + or 00), followed by Palau's country code 680, then the area code 73 and the subscriber number. For instance, a caller from the United States would dial:

• +680 73X XXXX

This format ensures proper routing through the international PSTN network.

Numbering Plan and Overlay Considerations

Palau's numbering plan is closed, meaning the national significant number (NSN) is always seven digits, regardless of whether the call is local or international. There are no overlay codes currently in effect for Ngaremlengui; the area code 73 is unique to this state. However, as telecommunications infrastructure evolves, it is advisable to always store and dial numbers in international format (+680 73X XXXX) to ensure compatibility with VoIP and mobile networks.

Caller Instructions

For local callers: simply dial the seven-digit number (area code + subscriber number) without any trunk prefix. For international callers: replace the local access prefix with the international dialing code for your country (e.g., 011 from the US, 00 from most European countries) or use the plus sign (+) on mobile phones, then dial 680 and the seven-digit number. Always verify the number length; a valid Ngaremlengui fixed-line number will always start with 73 and have a total of seven digits.