Area Code 851 – Astrakhan
The phone area code for Astrakhan is 851 (international format +7851). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 851
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Astrakhan
Geographic Overview
The area code 851 is a geographic National Destination Code (NDC) within the Russian Federation's national numbering plan, which adheres to ITU-T E.164 standards. It serves the city of Astrakhan and the broader Astrakhan Oblast, a federal subject located in the southern part of Russia along the Volga River delta, near the Caspian Sea. The code covers the administrative center and its surrounding districts, including towns such as Akhtubinsk, Znamensk, and Kharabali, though the primary concentration of subscribers is within the urban and suburban zones of Astrakhan itself.
Dialing Formats
When placing a call to a landline in Astrakhan, the number structure follows the Russian national format: 8 (851) XXX-XX-XX for domestic calls from within Russia, where the leading '8' is the trunk prefix. From abroad, callers must use the international format: +7 851 XXX-XX-XX, replacing the '8' with Russia's country code '+7'. For example, a local Astrakhan number might be +7 851 212-34-56 when dialed internationally, or 8 851 212-34-56 from other Russian regions.
Local and International Calling Instructions
For callers within Astrakhan, local calls may be placed using the seven-digit subscriber number without the area code, depending on the operator's dialing plan. However, for clarity and consistency, it is recommended to always include the area code. For callers from other Russian cities, the trunk prefix '8' is used, followed by the area code and subscriber number. International callers should dial their country's exit code, then Russia's country code '+7', the area code '851', and the seven-digit subscriber number.
Overlay and Numbering Considerations
As of the current numbering plan, there is no overlay code for Astrakhan; the 851 code remains the sole geographic code for the region. However, the Russian numbering system allows for the introduction of overlays when needed, so future changes are possible. Subscribers in Astrakhan may also have non-geographic numbers (e.g., mobile or VoIP) that are not tied to this area code.
Regulatory and Technical Notes
The assignment and management of the 851 code are overseen by the Russian Federal Communications Agency (Rossvyaz), in accordance with the national numbering plan. This code is exclusively for fixed-line services, including PSTN and some VoIP services that are registered to a physical address in the region. Mobile numbers in Russia use separate non-geographic prefixes (e.g., 9xx) and are not affected by this code. When dialing from a mobile phone within Russia, the same trunk prefix '8' is used, but from abroad, the '+7' international format is essential.