Area Code 1130 – Addis Ababa

Geographic Overview and Administrative Scope

The +251 1130 prefix is a geographic National Destination Code (NDC) assigned to the central administrative zone of Addis Ababa, the capital and largest city of the Federal Democratic Republic of Ethiopia. This code specifically serves the central business district and surrounding neighborhoods within the city's inner ring, including areas such as Arada, Kirkos, and parts of the Yeka sub-city. As a geographic allocation, the prefix is tied to the PSTN (Public Switched Telephone Network) infrastructure of Ethio Telecom, the incumbent operator, and is used for fixed-line services.

Dialing Formats and Usage

For callers within Ethiopia, the national dialing format requires the trunk prefix '0' followed by the NDC and the subscriber number. For example, to reach a fixed line in this area, you would dial 011 130 XXXX (where XXXX is the local subscriber number). Internationally, callers must use the country code +251, omitting the leading '0', resulting in +251 1130 XXXX. It is crucial to note that the NDC '1130' is part of the longer '011' area code structure for Addis Ababa, but the '0' is dropped when dialing from abroad.

Geographic Significance and Overlay Considerations

Addis Ababa is the diplomatic and economic hub of Ethiopia, hosting the African Union headquarters and numerous international organizations. The 1130 prefix is one of several NDCs within the larger 011 area code, which covers the entire city. Currently, there is no overlay code in Addis Ababa; the 011 area code remains the sole geographic code for the city. However, due to the rapid expansion of fixed-line services and the increasing demand for telecommunication services, future numbering plan changes may introduce additional NDCs or require 10-digit dialing. For now, local calls within Addis Ababa can be made using the 8-digit subscriber number (without the area code) if the caller is within the same exchange, but it is recommended to always use the full national format to avoid misdialing.

Caller Instructions

Local callers (within Ethiopia): Dial 011 130 XXXX for calls from other regions, or simply 1130 XXXX if you are within the same local calling area. International callers: Dial your country's international access code (e.g., 00 from most countries), followed by 251, then 1130 XXXX. For example, from the United States, you would dial 011 251 1130 XXXX. Ensure you do not include the leading '0' of the trunk prefix.

Service and Numbering Considerations

As a fixed-line prefix, numbers under 1130 are primarily used for residential and business landlines. They are not portable to mobile networks, as Ethiopia's mobile numbering plan uses separate NDCs (e.g., 91, 92, 93). Businesses operating in this area should ensure their contact numbers are correctly listed with the +251 1130 format for international clients. For VoIP or satellite services, alternative non-geographic prefixes may be used, but 1130 remains strictly tied to the physical location of the exchange.