Area Code 1165 – Koulamoutou
The phone area code for Koulamoutou is 1165 (international format +2411165). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Koulamoutou
Overview of Area Code 1165 in Gabon
Area code 1165 is a geographic National Destination Code (NDC) assigned to the city of Koulamoutou, the capital of Ogooué-Lolo Province in central Gabon. This code is part of the national numbering plan under the ITU-T E.164 standard, which designates specific prefixes for fixed-line telephone services within defined administrative regions. The prefix is used exclusively for landline connections in Koulamoutou and its surrounding localities, including nearby towns such as Lébamba and Mbigou, which rely on the same local exchange infrastructure.
Dialing Formats and Usage
When calling a fixed-line number in Koulamoutou from within Gabon, subscribers must dial the full national number, which includes the trunk prefix 0 followed by the area code and the subscriber's local number. For example, to reach a local line with the number 123456, a caller in Libreville would dial 01165 123456. The leading 0 is the national trunk prefix, and 1165 is the area code. The total number of digits after the trunk prefix is typically 8, including the area code, resulting in a 9-digit national significant number (NSN) when the trunk prefix is omitted.
For international callers, the format requires the international access prefix (usually + or 00), followed by Gabon's country code 241, and then the area code without the leading trunk prefix. Thus, a caller from the United States would dial 011 241 1165 123456, while a caller from France would dial 00 241 1165 123456. It is crucial to omit the initial 0 of the area code when dialing from abroad.
Regulatory and Technical Considerations
Gabon's telecommunications regulator, the Agence de Régulation des Communications Électroniques et des Postes (ARCEP), oversees the allocation and management of geographic area codes. The code 1165 is part of the national numbering plan and is not subject to overlay or area code splitting as of the latest updates. Fixed-line services in Koulamoutou are provided by the incumbent operator, Gabon Telecom, although other licensed operators may offer services in the region. Number portability, while available for mobile services, is not yet fully implemented for fixed-line services in all regions, so subscribers may need to change numbers if switching providers.
For businesses and residents, understanding the correct dialing format is essential for seamless communication. Local calls within the same area code may be dialed using only the subscriber number, but it is recommended to use the full national format to avoid confusion, especially as the network evolves.