Area Code 4 – Central Region
The phone area code for Central Region is 4 (international format +2304). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Central Region
Geographic Coverage and Administrative Jurisdiction
The area code 4 is a geographic National Destination Code (NDC) assigned to the Central Region of Mauritius. This region encompasses the central plateau of the island, including the capital city of Port Louis (partially), as well as key towns such as Beau Bassin-Rose Hill, Quatre Bornes, Vacoas-Phoenix, and Curepipe. These municipalities fall under the administrative districts of Plaines Wilhems and Moka. The code serves both residential and business fixed-line subscribers within this densely populated area.
Dialing Formats and Caller Instructions
For local callers within Mauritius, the number is dialed as an 8-digit national significant number (NSN) in the format 4XX XXXX. For example, a fixed-line number in Curepipe might appear as 4 675 1234. When calling from abroad, the full international format must be used: +230 4XX XXXX. For instance, to reach the same number from the UK, you would dial 00 230 4 675 1234. It is important to note that Mauritius does not use trunk prefixes like '0' for domestic calls; the NDC is always included.
Overlay and Numbering Considerations
The central region code '4' is one of several geographic codes used in Mauritius (others include '2' for the north, '6' for the south, etc.). There are currently no overlay codes in Mauritius; each geographic area retains its unique NDC. However, number portability exists, meaning a fixed-line number with the '4' code may be serviced by an alternative operator, but the geographic significance remains tied to the original assignment. When dialing, callers should always verify the complete 8-digit number, as omitting digits can lead to misrouting.
Services and Usage
Subscribers under the '4' code typically have access to PSTN and VoIP services, with high-speed internet and digital telephony widely available. Businesses in the central business district of Port Louis and commercial hubs like Quatre Bornes rely on these lines for customer contact. For international callers, it is essential to replace the leading '4' with the country code and international prefix. For example, from the US, you would dial 011 230 4 675 1234. Always confirm the number with the recipient, as mobile numbers in Mauritius begin with '5' and are non-geographic.