Area Code 1198 – Oyem

Overview of Gabon's +241 1198 Geographic Code

The prefix +241 1198 is a geographic National Destination Code (NDC) assigned within the Republic of Gabon's national numbering plan, conforming to ITU-T E.164 standards. This code serves the city of Oyem, the capital of the Woleu-Ntem Province, located in the northern part of the country near the border with Equatorial Guinea and Cameroon. As a geographic code, it routes calls to fixed-line (PSTN) subscribers whose physical lines are terminated within the Oyem exchange area.

Dialing Formats and Usage

When calling an Oyem fixed-line number from within Gabon, subscribers must dial the trunk prefix 0 followed by the NDC and the subscriber number. The complete national format is 0 1198 XX XX, where the subscriber number typically consists of four digits, resulting in a total national significant number (NSN) length of eight digits (excluding the trunk prefix). For example, a local Oyem number might be 0 1198 12 34.

International callers must replace the trunk prefix with Gabon's country calling code +241, omitting the leading zero. Thus, the same number would be dialed as +241 1198 12 34. This format is essential for proper routing through international gateways.

Coverage and Administrative Context

The Oyem code covers the urban and peri-urban areas of the city, including administrative districts, commercial zones, and residential neighborhoods. As the provincial capital, Oyem is a hub for government services, trade, and education, hosting institutions such as the University of Science and Technology of Masuku (USTM) campus and regional health facilities. The geographic area code ensures that calls are routed efficiently to the correct local exchange, which is particularly important for emergency services and business communications.

Overlay and Numbering Considerations

Gabon's numbering plan has undergone changes to accommodate growing demand, and overlay codes may be introduced in major cities. However, as of the current data, 1198 remains the primary geographic code for Oyem, with no overlay in effect. Subscribers should verify the correct dialing sequence with their service provider, especially when calling from mobile networks, as some operators may require the full national format even for local calls.

For callers outside Gabon, it is crucial to check with their telecom operator for any international dialing restrictions or additional charges. VoIP users should ensure that their service provider supports calls to Gabon's geographic numbers and that they use the correct international prefix (e.g., 00 or +).