Area Code 55 – Bungoma/Busia

Overview of Area Code 55 (Kenya)

Area code 55 is a geographic National Destination Code (NDC) within the Kenyan numbering plan, assigned to the western counties of Bungoma and Busia. These counties border Uganda to the west and are part of the former Western Province. The code serves both fixed-line PSTN subscribers and, in some cases, fixed-wireless or VoIP-based local services that have been allocated geographic numbers.

Geographic Coverage and Administrative Jurisdiction

The 55 code covers two distinct administrative counties:

• Bungoma County: Its capital and largest town is Bungoma, a key commercial hub. Other significant towns include Kimilili, Webuye, and Chwele.
• Busia County: The county headquarters is Busia town, which lies directly on the Kenya–Uganda border. Other notable towns include Malaba, Port Victoria, and Nambale.

These areas are primarily agricultural, with sugar cane and maize being major crops. The code is essential for local businesses, government offices, and residents who rely on fixed-line connectivity.

Dialing Formats

Kenya uses a closed numbering plan, meaning the full national number includes the leading '0' when dialed domestically. The international format omits the '0' and uses Kenya's country code +254.

• Local dialing within Kenya: 055 XXXXXX (where XXXXXX is the 6-digit subscriber number).
• International dialing from abroad: +254 55 XXXXXX (or +25455XXXXXX when dialed without spaces).

For example, a fixed line in Bungoma might be 055 123456. To call it from the United States, you would dial 011 254 55 123456. From the UK, you would dial 00 254 55 123456.

Caller Instructions

For callers within Kenya: Simply dial the 0 followed by the area code and subscriber number. For instance, to call a number in Busia, dial 055 and then the six-digit number.

For international callers: Dial your country's international exit code (e.g., 00 or 011), followed by Kenya's country code 254, then the area code without the leading 0, and finally the subscriber number. So, a call to a Busia number would be formatted as [exit code] 254 55 XXXXXX.

Overlay and Numbering Considerations

As of the latest updates from the Communications Authority of Kenya (CA), there is no overlay code for the 55 area. The numbering plan is not closed for this region, and the subscriber number length is fixed at six digits. However, with the gradual migration from PSTN to VoIP and mobile services, some numbers in this code may be routed over IP networks, but the geographic significance remains for billing and emergency services.

Practical Usage

Area code 55 is primarily used by businesses, government offices, and households that maintain fixed-line connections. With the growth of mobile telephony, the use of fixed lines has declined, but the code remains active. For anyone needing to contact a landline in Bungoma or Busia, understanding the correct dialing format is crucial to avoid call failures.