Area Code 0154 – Omboué

Geographic Overview and Jurisdiction

The prefix +241 0154 is a geographic National Destination Code (NDC) assigned to the fixed-line telephone network serving Omboué, the administrative capital of the Ogooué-Maritime Province in western Gabon. Omboué is situated along the Ndogo Lagoon, near the Atlantic coast, and serves as a key economic hub for the region's fishing and timber industries. This code is part of Gabon's national numbering plan, which adheres to ITU-T E.164 recommendations. The geographic allocation means that the prefix is tied to a specific physical exchange area, and calls to this number are routed via the public switched telephone network (PSTN) to the Omboué local exchange.

Dialing Formats and Usage

When calling a fixed-line subscriber in Omboué from within Gabon, the national trunk prefix 0 is used, followed by the NDC and the subscriber number. The complete national format is 0154 XX XX XX (where X represents the local subscriber digits). For international callers, the country code +241 is dialed, followed by the NDC without the leading zero, resulting in +241 154 XX XX XX. For example, a local call to a subscriber in Omboué would be dialed as 0154 12 34 56, while an international caller would dial +241 154 12 34 56. It is important to note that the leading '0' is only used for domestic calls and must be omitted when dialing from abroad.

Overlay and Numbering Considerations

Currently, there is no overlay code for the Omboué area, meaning that the 0154 prefix is unique to this geographic region. However, as Gabon's telecommunications market evolves, the regulator (ARCEP Gabon) may introduce additional NDCs or number portability measures. Subscribers in Omboué may also have access to VoIP services, but the geographic prefix remains associated with the physical location for regulatory and emergency services purposes. Callers should always verify the correct prefix when dialing to avoid misrouting, especially when using international roaming services.

Practical Guidance for Callers

• Local callers: Dial 0154 followed by the 6-digit subscriber number (e.g., 0154 78 90 12).
• International callers: Dial your country's exit code, then 241, then 154, then the 6-digit subscriber number (e.g., 011 241 154 78 90 12 from the US).
• Emergency services: Always use the national emergency numbers (e.g., 1300 for police) rather than the geographic prefix.

Understanding the correct dialing format ensures reliable connectivity to businesses and residents in Omboué, whether for personal or commercial purposes.