Area Code 494 – Kostroma
The phone area code for Kostroma is 494 (international format +7494). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 494
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Kostroma
Overview of Area Code +7 494
Area code +7 494 is a geographic National Destination Code (NDC) assigned to the Kostroma Oblast of the Russian Federation. This region, part of the Central Federal District, is served by a mix of fixed-line PSTN operators and local telecom providers. The code covers the administrative center of Kostroma and its surrounding districts, including the cities of Bui, Galich, Nerekhta, and Sharya, among others.
Geographic Coverage and Administrative Jurisdiction
The Kostroma Oblast is located northeast of Moscow, and its numbering plan is administered under the Russian national numbering scheme, which follows ITU-T E.164 recommendations. The +7 494 code is subdivided into several local exchange areas, each with its own Central Office Codes (COCs) that further identify specific towns or exchanges. For instance, the city of Kostroma itself uses the prefix 4942, while other districts use 4943x, 4944x, etc., depending on the local network structure.
Dialing Formats and Caller Instructions
When calling a fixed-line subscriber in the Kostroma region from within Russia, the domestic trunk prefix 8 is used, followed by the area code and the subscriber number. For example, to reach a number in Kostroma city, one would dial 8-4942-XX-XX-XX. From abroad, the international access prefix (00 or +) is used, followed by the country code 7, the area code 494, and the subscriber number, omitting the leading trunk prefix. Thus, an international caller would dial +7 494 2XX-XX-XX (for Kostroma city) or +7 494 3XX-XX-XX for other areas, depending on the specific local code.
Local calls within the same local exchange area are typically made using only the subscriber number, without the area code. However, calls between different local areas within the Kostroma region require dialing the full area code and subscriber number, even when calling from within the same region.
Overlay and Numbering Considerations
As of the latest updates, there are no overlay codes in the Kostroma region, meaning that the +7 494 code is the sole geographic area code for the entire oblast. This simplifies dialing for both local and international callers. The number length for fixed-line subscribers is typically 10 digits when including the area code (excluding the trunk prefix), which is standard for Russian geographic numbers.
Practical Examples for Callers
For a foreign caller wishing to contact a business in Kostroma city, the international format would be +7 494 2XX-XX-XX. If the number is in a smaller town like Bui, the format would be +7 494 35X-XX-XX (hypothetical example). It is essential to verify the exact local code for the specific town, as the NDC 494 encompasses multiple local exchange codes.
For domestic callers outside the Kostroma region, the dialing sequence is 8-494-2XX-XX-XX (or 8-494-3XX-XX-XX for other areas). This ensures proper routing through the Russian national PSTN.