Area Code 6 – South Region

Geographic Coverage and Administrative Jurisdiction

The area code 6 is a geographic National Destination Code (NDC) assigned to the South Region of Mauritius, an island nation in the Indian Ocean under the ITU-T E.164 country calling code +230. This code covers the southern part of the main island, including the districts of Savanne and Grand Port, as well as portions of the Plaines Wilhems district that extend southward. Key towns and localities served by this code include Mahébourg, Souillac, Chemin Grenier, Rivière des Anguilles, and Bel Ombre. The region is known for its coastal areas, nature reserves, and the historic Vieux Grand Port, making it a mix of residential, commercial, and tourism-related activity.

Dialing Formats and Caller Instructions

Within Mauritius, calls to numbers in the South Region require dialing the trunk prefix 0 followed by the area code 6 and the subscriber number. The national significant number (NSN) for geographic numbers in Mauritius is 7 digits, with the area code being the first digit. Therefore, a local call from another part of Mauritius would be dialed as 0 6 XX XX XX (where X represents the subscriber digits). For international callers, the format is +230 6 XX XX XX, omitting the leading trunk prefix. It is important to note that Mauritius does not use variable-length area codes; the initial digit '6' is fixed for this geographic region, and the subscriber number is 6 digits long.

Overlay and Numbering Plan Considerations

Mauritius has a closed numbering plan, meaning that all subscriber numbers are 7 digits long, and there is no overlay code for geographic areas. The country's regulator, the Information and Communication Technologies Authority (ICTA), administers numbering resources. As of the latest updates, there are no overlay plans for the South Region, and the code '6' is exclusively used for fixed-line services in that area. However, with the growing adoption of VoIP and mobile services, some businesses may use non-geographic numbers, but the '6' prefix remains dedicated to geographic fixed-line connections.

Practical Usage and Examples

For a caller in Port Louis (North Region) wishing to reach a business in Mahébourg, the local dialing format would be 06 123 456 (if the subscriber number is 123456). From abroad, they would dial +230 6 123 456. It is essential for international callers to replace the leading '0' with the country code +230. This code is also used for fax lines and internet dial-up services historically, though modern usage is predominantly voice and broadband. Understanding the geographic nature of this code helps in identifying the location of a fixed-line caller and is useful for businesses with a presence in the southern region.