Area Code 1136 – Addis Ababa

Overview

The area code 1136 is a geographic National Destination Code (NDC) assigned to the Addis Ababa region of Ethiopia. It is part of the country's national numbering plan under the ITU-T E.164 recommendation. The full international dialing format for a number in this area is +251 1136 XXX XXX, where +251 is the country calling code for Ethiopia, 1136 is the NDC, and the remaining seven digits constitute the subscriber number. This code is used for fixed-line (PSTN) services within the capital city and its immediate administrative zones.

Geographic Coverage and Administration

Addis Ababa is a chartered city and serves as the political and economic capital of Ethiopia. The 1136 prefix covers the central business district and surrounding residential areas, including neighborhoods such as Bole, Kazanchis, and Piassa. As a geographic code, it is tied to the physical location of the subscriber's line. The Ethiopian Telecommunications Corporation (ETC), now operating as Ethio Telecom, historically assigned these codes, and they remain in use for legacy fixed-line services.

Dialing Formats

• International dialing from abroad: +251 1136 XXX XXX (replace the leading 0 if present).
• National dialing within Ethiopia: 011 36 XXX XXX (the trunk prefix 0 is used before the NDC).
• Local dialing within the same area: 36 XXX XXX (omitting the area code).

For example, a subscriber number might be +251 1136 12345 when dialed internationally, 011 36 12345 nationally, and 36 12345 locally. Note that the subscriber number length may vary, but the total number of digits after the country code is typically 9.

Caller Instructions

For international callers: Dial your country's international access prefix (e.g., 00 or 011), then 251, then 1136, followed by the subscriber number. Do not dial the leading '0' used in national dialing.

For local callers within Addis Ababa: If you are calling from another fixed-line in the same area, you can often dial the subscriber number directly without the area code. However, for calls from mobile networks or other regions, you must include the trunk prefix 0 and the area code 11 (which includes the 1 for the capital region).

Overlays and Numbering Considerations

Ethiopia has not implemented overlay codes in the traditional sense; instead, new geographic areas have been assigned distinct NDCs. The 1136 code is part of the larger 11 NDC group for Addis Ababa, which includes multiple prefixes such as 111, 112, and 113. As of recent updates, no overlay is active for this area, but number portability may allow subscribers to retain their numbers when changing providers, though this is limited to fixed-line services.

Technical Notes

Fixed-line numbers in Ethiopia are primarily used for PSTN and ISDN services. VoIP services are also assigned geographic numbers in some cases, but they are not location-bound. The 1136 prefix is not associated with mobile services; mobile numbers in Ethiopia start with 9 (e.g., 91, 92, 93) and are non-geographic. When dialing from abroad, ensure you have the correct international access code for your country, and be aware that call charges may vary depending on your carrier.