Area Code 2537 – Lunda Sul

Overview of Area Code 2537

Area code 2537 is a geographic National Destination Code (NDC) assigned to the province of Lunda Sul, in the eastern part of Angola. It is part of the Angolan telephone numbering plan, which follows ITU-T E.164 recommendations. The code is used for fixed-line (PSTN) services within the province, primarily serving the provincial capital Saurimo and surrounding municipalities.

Geographic Coverage and Administrative Jurisdiction

Lunda Sul is one of Angola's 18 provinces, bordered by Lunda Norte to the north, Bié to the west, and Moxico to the south. The area code covers the entire province, including the municipalities of Saurimo, Cacolo, Dala, and Muconda. Saurimo, the provincial capital, is the main economic and administrative hub, and most fixed-line subscribers are concentrated there.

Dialing Formats

When calling a fixed-line number in Lunda Sul from within Angola, you must dial the trunk prefix 0 followed by the area code and the subscriber number. The national significant number (NSN) is 9 digits long, comprising the area code (4 digits) and a 5-digit subscriber number. For example, a local number might be formatted as:

• National dialing (within Angola): 0 2537 XXX XX
• International dialing (from abroad): +244 2537 XXX XX

Note that the leading 0 is only used for national calls and is omitted when dialing from outside Angola. The plus sign (+) indicates the international access code, and 244 is Angola's country calling code.

Caller Instructions

For callers within Angola: If you are calling from another province, you must first dial the trunk prefix 0, then the area code 2537, followed by the subscriber number. For example, to call a fixed line in Saurimo from Luanda, you would dial: 0 2537 XXX XX.

For international callers: Dial your country's international exit code (e.g., 00 from most European countries, 011 from the United States), then Angola's country code 244, then the area code 2537 (without the leading 0), and finally the subscriber number. For example, from the US: 011 244 2537 XXX XX.

Overlay and Numbering Considerations

As of the latest ITU-T operational bulletins, there is no overlay code for Lunda Sul. The area code 2537 is exclusively assigned to fixed-line services in the province. Mobile numbers in Angola are non-geographic and use different prefixes (e.g., 91x, 92x, 93x for major operators). If you are unsure whether a number is fixed or mobile, note that fixed numbers in Lunda Sul always start with 2537, while mobile numbers do not.

When dialing locally within the same area code, it is common to omit the area code and just dial the 5-digit subscriber number, but this practice is not standardized across all networks. For reliability, always use the full national format (0 2537 XXX XX) when calling from a different province or from a mobile phone.