Area Code 123 – Nalaikh

Overview of Mongolia's +976 123 Geographic Code

The +976 123 prefix is a geographic National Destination Code (NDC) assigned to the Nalaikh district, an administrative suburb located within the capital region of Ulaanbaatar, Mongolia. Nalaikh is situated approximately 35 kilometers southeast of the city center and operates as one of the capital's nine düüregs (districts). This code is used for fixed-line (PSTN) services within Nalaikh, and it is part of Mongolia's national numbering plan, which adheres to ITU-T E.164 recommendations.

Dialing Formats and Usage

When calling a fixed-line number in Nalaikh from within Mongolia, subscribers must dial the trunk prefix 0, followed by the area code 123 and the subscriber's local number, which typically consists of 6 digits. The complete national format is: 0 123 XXX XXX. For example, a local number might be 0 123 456 789.

For international callers, the format requires the Mongolia country code +976, followed by the area code 123 and the subscriber number, omitting the leading trunk zero. Thus, the international format is: +976 123 XXX XXX. For instance, if the national number is 0 123 456 789, the international dialing format would be +976 123 456 789.

Geographic Coverage and Administrative Details

The +976 123 code specifically serves the Nalaikh district, which includes the central town of Nalaikh and its surrounding sub-districts (khoroos). This area is historically known for its coal mining industry, and today it functions as a residential and industrial zone within the greater Ulaanbaatar metropolitan area. The code is managed by the Mongolian Communications Regulatory Commission (CRC) and is allocated to fixed-line operators such as MobiCom and Unitel, which provide PSTN services in the region.

It is important to note that this code is geographic; therefore, the tariff for calls to +976 123 is typically higher than local calls within Ulaanbaatar proper, as it is considered a regional call. However, with the proliferation of VoIP and mobile services, many businesses and residents also use alternative non-geographic numbers, but the +976 123 prefix remains the official fixed-line identifier for Nalaikh.

Caller Instructions

• Local callers within Mongolia: Dial 0 123 XXX XXX.
• International callers: Dial your country's exit code (e.g., 00 or +), then 976 123 XXX XXX.
• Mobile callers within Mongolia: Can dial the same national format as fixed-line callers.

For any assistance with number portability or service activation, contact your local telecom operator. Always verify the current dialing procedures with your service provider, as numbering plans may undergo changes.