Area Code 155 – Khartoum North

Geographic Overview

The +249 155 numbering block is a geographic area code assigned to Khartoum North (also known as Bahri), a major industrial and residential city located in Khartoum State, Sudan. Khartoum North lies at the confluence of the Blue and White Nile rivers, opposite the capital city of Khartoum and adjacent to Omdurman. This area code serves the administrative and commercial districts of Bahri, including neighborhoods such as Kafouri, Shambat, and the industrial zones. As part of the greater Khartoum metropolitan area, the 155 prefix is used for fixed-line telephone services, including PSTN and some VoIP-based landlines.

Dialing Formats

To call a fixed-line number in Khartoum North from within Sudan, subscribers dial the trunk prefix 0, followed by the area code 155, and the subscriber's 7-digit local number. The national format is: 0 155 XXX XXXX. For international callers, the country code +249 replaces the trunk prefix, and the area code is used without the leading zero. The international format is: +249 155 XXX XXXX. For example, a local call to a number in Khartoum North would be dialed as 0155 123 4567, while an international caller would dial +249 155 123 4567.

Regulatory and Technical Notes

Sudan's numbering plan is regulated by the National Telecommunications Corporation (NTC) under the ITU-T E.164 standard. The 155 code is a geographic allocation, meaning that the tariff for calls to this prefix is typically based on the distance and the operator's pricing policy. However, with the increasing adoption of VoIP and the liberalization of the telecom market, some operators may route calls to this prefix over IP networks, potentially affecting call quality and termination costs. It is important to note that the length of subscriber numbers within the 155 block may vary, so callers should verify the exact number of digits with the recipient or the local operator. Additionally, as part of the Khartoum state, this area code may be subject to future overlay or renumbering plans, although no such changes have been announced as of this writing.

Caller Instructions

For local callers within Sudan: always include the trunk prefix 0 when dialing from outside the Khartoum North area. For callers within the same area code, it is still necessary to dial the full number including the area code, as per the national dialing plan. For international callers: replace the leading zero with +249 and omit any additional digits. Ensure that you have the correct international exit code for your country (e.g., 00 from most European countries, 011 from the US/Canada) before dialing the full international number.