Area Code 4522 – Korten
The phone area code for Korten is 4522 (international format +3594522). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 4522
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Korten
Geographic Overview
The +359 4522 prefix is a geographic National Destination Code (NDC) assigned to the town of Korten, located in the Sliven Province of south-central Bulgaria. Korten is a small settlement situated approximately 20 kilometers southeast of the city of Sliven, within the Thracian valley. The code is administered under Bulgaria's national numbering plan, which follows ITU-T E.164 recommendations, and is used for fixed-line PSTN services in this locality.
Dialing Formats
When calling a Korten landline from within Bulgaria, subscribers must dial the trunk prefix 0 followed by the area code and the subscriber number. For example, a local number might be dialed as 0452 2X XXX (where X represents digits). From abroad, callers must use the international prefix (typically + or 00), followed by Bulgaria's country code 359, then the area code without the leading zero, and the subscriber number. Thus, the same number would be dialed as +359 452 2X XXX.
Geographic Coverage and Numbering
The 4522 code covers the Korten exchange area, which includes the town itself and possibly nearby hamlets. Subscriber numbers under this prefix typically consist of 6 to 7 digits in total when combined with the area code, following the national numbering plan. The prefix is geographic, meaning that the number is tied to a physical location and is primarily used for fixed-line services. As with many rural areas in Bulgaria, the number of active lines may be limited, and the code is not typically used for mobile or nomadic VoIP services.
Caller Instructions
Local callers within Bulgaria should always include the trunk prefix 0 when dialing from a different fixed-line area or from a mobile phone. For example, to call Korten from Sofia, one would dial 0452 2X XXX. International callers should replace the leading zero with the +359 country code, as in +359 452 2X XXX. It is important to note that when dialing from abroad, the area code is used without the initial zero. No overlay codes are currently in effect for this area, so the 4522 prefix remains unique to Korten.
Regulatory and Technical Notes
The Bulgarian Communications Regulation Commission (CRC) oversees the allocation of geographic numbers. Fixed-line numbers in Bulgaria are generally not portable to other geographic areas, but they may be ported between operators within the same exchange. As Korten is a small community, the prefix is unlikely to be heavily congested, and number availability is generally sufficient for local demand. For businesses or individuals requiring a presence in Korten, obtaining a number with this prefix can help establish a local footprint, though VoIP alternatives may offer more flexibility.