Area Code 4518 – Topolchane
The phone area code for Topolchane is 4518 (international format +3594518). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 4518
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Topolchane
Overview of Area Code 4518 (Topolchane)
Area code 4518 is a geographic destination code within the Bulgarian national numbering plan, allocated to the town of Topolchane and its immediate administrative surroundings. Topolchane is located in the Sliven Province, southeastern Bulgaria, and falls under the jurisdiction of the municipality of Sliven. The code is used for fixed-line (PSTN) services, and subscribers within this area are assigned numbers that begin with the trunk prefix 0 when dialed domestically, followed by the area code and the local subscriber number.
Dialing Formats
For callers within Bulgaria, the national dialing format for a Topolchane number is:
- 0 4518 XXX XX (where X represents the local subscriber digits)
For international callers, the country code for Bulgaria is +359, and the leading trunk prefix '0' is omitted. The international format is:
- +359 4518 XXX XX
For example, a local number might be 04518 12345 when dialed domestically, or +359 4518 12345 from abroad.
Geographic Coverage and Administration
The 4518 area code serves the town of Topolchane and the surrounding villages that are part of the same telephone exchange area. Topolchane is situated approximately 15 kilometers east of the city of Sliven, the administrative center of the province. The region is primarily agricultural, with a small population, and the fixed-line network is operated by the incumbent telecom operator (formerly BTC, now A1 Bulgaria) as well as alternative carriers that provide local loop unbundling services.
Caller Instructions
When calling a Topolchane number from another fixed or mobile line within Bulgaria, you must always include the trunk prefix '0' and the area code '4518', even if you are calling from a nearby locality. For callers from outside Bulgaria, the international access code of the originating country (e.g., 00 or +) must be used, followed by the Bulgarian country code 359 and the area code without the leading zero.
It is important to note that as of the current numbering plan, there are no overlay codes for this area; the 4518 code is exclusively assigned to the Topolchane exchange. However, number portability allows subscribers to retain their numbers when switching between fixed-line operators, but the geographic significance of the code remains unchanged.
For emergency services, always dial 112, which is the universal European emergency number and is free from any phone in Bulgaria.