Area Code 223 – Nalaikh

Overview of Mongolia's +976 223 Geographic Code

The +976 223 country-code/area-code combination is assigned to the Nalaikh district (Налайх дүүрэг), an administrative subdivision of Mongolia's capital city, Ulaanbaatar. Nalaikh is located approximately 35 kilometers southeast of downtown Ulaanbaatar and is one of the nine districts (düüreg) of the capital. The area code 223 is a geographic National Destination Code (NDC) within the Mongolian numbering plan, which follows ITU-T E.164 recommendations.

Geographic Coverage and Administrative Jurisdiction

The 223 area code serves the entire Nalaikh district, including its central settlement and surrounding sub-municipalities (bags). Although Nalaikh is geographically separate from the main urban core of Ulaanbaatar, it is administratively part of the capital city. This means that calls to Nalaikh from other districts of Ulaanbaatar are treated as national long-distance calls and require the trunk prefix '0' followed by the area code.

Dialing Formats and Instructions

For callers within Mongolia (domestic calls), the correct dialing format is:

• 0 223 XXX XX (where XXX XX represents the local subscriber number, typically 5 digits)

For international callers, the format is:

• +976 223 XXX XX (or 011 976 223 XXX XX from countries using the North American Numbering Plan)

Example: To call a Nalaikh landline with subscriber number 12345, a caller in Ulaanbaatar would dial 0 223 12345, while an international caller would dial +976 223 12345.

Overlay and Numbering Considerations

As of the latest ITU-T operational bulletin, no overlay code has been assigned to the Nalaikh area. The 223 code is exclusively geographic and is not used for mobile or non-geographic services. Mobile numbers in Mongolia are identified by their own prefixes (e.g., 8xxx for Mobicom, 9xxx for Unitel, etc.) and are not tied to geographic regions. When dialing a Nalaikh number from abroad, callers must omit the leading '0' of the domestic trunk prefix. For local calls within Nalaikh, the area code may be omitted only if the caller is within the same exchange area, but due to the small size of the district, it is recommended to always include the area code to avoid misrouting.

Practical Information for Callers

Nalaikh is known for its coal mining history and is developing as a residential area for Ulaanbaatar's expanding population. Businesses and government offices in Nalaikh typically use landline numbers under 223. For reliable connectivity, VoIP services are also available, but they require correct E.164 formatting. When storing numbers in a phone book, always use the international format (+976 223 XXX XX) to ensure dialing from any location.