Area Code 1135 – Addis Ababa
The phone area code for Addis Ababa is 1135 (international format +2511135). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Addis Ababa
Geographic Overview
The +251 1135 area code is a geographic National Destination Code (NDC) assigned to the central part of Addis Ababa, the capital and largest city of Ethiopia. Addis Ababa serves as the seat of the African Union and the United Nations Economic Commission for Africa, making it a hub for diplomatic, commercial, and administrative activities. The 1135 prefix specifically covers neighborhoods within the city's core, including areas around the Bole district, Meskel Square, and the Kazanchis business district, which host numerous government ministries, embassies, and corporate headquarters.
Dialing Formats
When calling a landline number with the 1135 prefix from within Ethiopia, subscribers must dial the trunk prefix '0' followed by the NDC and the subscriber number. The national format is: 0 113 5XX XXX (where X represents the remaining digits). For example, a local number might appear as 011 355 1234. From abroad, callers must use the international format: +251 113 5XX XXX or +251 1135 XX XXX, depending on the exact digit grouping. For instance, an international caller would dial +251 113 55 1234 to reach a number in this area.
Caller Instructions
Local callers within Addis Ababa can typically dial the 9-digit subscriber number without the area code if they are in the same geographic region, but it is always safe to use the full national format (including the '0') to ensure proper routing. Callers from other Ethiopian regions must dial 011 135 XXXX (or the full national number) to connect. International callers should replace the leading '0' with the country code +251 and drop the trunk prefix, resulting in +251 113 5XX XXX. It is important to note that Ethiopia has not implemented number portability for fixed lines; therefore, the prefix remains tied to the physical location of the line.
Technical Considerations
The 1135 code is part of the Addis Ababa numbering plan, which uses a closed dialing plan with a total of 9 digits (including the leading '0') for national calls. The Ethiopian Communications Authority (ECA) manages the allocation of these codes. As the country continues to expand its telecommunications infrastructure, including fiber-optic networks and VoIP services, the 1135 area code remains a reliable identifier for traditional PSTN lines in the capital. For businesses and individuals requiring a presence in Addis Ababa, securing a number with this prefix can enhance local credibility and accessibility.