Area Code 351 – Chelyabinsk
The phone area code for Chelyabinsk is 351 (international format +7351). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 351
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Chelyabinsk
Overview of Area Code +7 351
Area code +7 351 is the geographic National Destination Code (NDC) assigned to the Chelyabinsk region of the Russian Federation. It serves the administrative center of Chelyabinsk and its surrounding localities within the Chelyabinsk Oblast, a major industrial and cultural hub located in the Ural Federal District. The code is used for fixed-line (PSTN) services, including traditional copper lines, ISDN, and fiber-based VoIP offerings that are tied to a physical address in the region.
Geographic Coverage and Administrative Jurisdiction
The +7 351 code covers the city of Chelyabinsk and several nearby towns and districts, such as Kopeysk, Korkino, and Yemanzhelinsk. It is one of several area codes in the Chelyabinsk Oblast; other parts of the region use different codes (e.g., +7 351 for the central zone, +7 3519 for Magnitogorsk). The allocation follows the Russian numbering plan, which is based on the ITU-T E.164 recommendation, with the country code +7 shared with Kazakhstan.
Dialing Formats and Instructions
For callers within Russia, the trunk prefix 8 is used before the area code. Thus, a local call to a Chelyabinsk number would be dialed as 8 351 XXX-XX-XX. For international callers, the format is +7 351 XXX-XX-XX (or 007 351 XXX-XX-XX from some countries using the international prefix). The subscriber number length is seven digits, making the total national significant number (NSN) ten digits (including the leading 0 that is not dialed internationally).
Overlay and Numbering Considerations
Currently, there is no overlay code for the Chelyabinsk geographic area; the +7 351 code is the sole NDC for the central zone. However, as in many Russian regions, number portability is available for fixed lines within the same geographic area, allowing subscribers to retain their numbers when changing operators. For mobile numbers, the +7 9XX prefixes are non-geographic and not tied to this area code.
Caller Instructions
Local callers within Chelyabinsk can often dial the seven-digit subscriber number directly without the area code, depending on the operator's local dialing rules. However, to avoid confusion, it is recommended to always use the full national format (8 351...) when calling from a mobile phone. Foreign callers should replace the international access prefix with +7 and omit the leading 0 of the area code. For example, a number listed as 8 (351) 123-45-67 should be dialed as +7 351 123-45-67 from abroad.