Area Code 4713 – Stara reka, Yambol

Geographic Coverage and Administrative Jurisdiction

The +359 4713 prefix is a geographic National Destination Code (NDC) assigned to the Stara reka area within the Yambol Province of Bulgaria. This region falls under the administrative jurisdiction of the Yambol Municipality and is part of the Southeastern planning region of the country. The code serves the town of Stara reka and its immediate vicinity, providing fixed-line PSTN services to residential and business subscribers. The numbering area is characterized by its rural and semi-urban landscape, with telecommunications infrastructure managed by local incumbent operators and alternative carriers under the regulatory oversight of the Communications Regulation Commission (CRC) of Bulgaria.

Dialing Formats and Caller Instructions

For callers within Bulgaria, the national trunk prefix '0' is used before the area code, followed by the subscriber number. The complete national format is 0 4713 XXX XX, where '0' is the trunk prefix, '4713' is the area code, and the subscriber number typically consists of 5 to 6 digits. For example, a local number might be dialed as 04713 12345 from any phone in Bulgaria.

International callers must replace the trunk prefix with Bulgaria's country calling code +359, omitting the leading '0'. The international format is +359 4713 XXX XX. For instance, to call a subscriber with the local number 12345, an international caller would dial +359 4713 12345. When dialing from a mobile phone, the plus sign (+) can be used instead of the international access code (00) in most countries.

Overlay and Numbering Plan Considerations

As of the current numbering plan, there is no overlay code for the 4713 area. The area code is unique to the Stara reka region, and no additional area codes have been overlaid to serve the same geographic area. This simplifies dialing procedures, as callers do not need to dial an additional prefix or use 10-digit dialing within the region. However, it is always advisable to check with your service provider for any recent changes in dialing procedures, especially if you are using VoIP or mobile services that may route calls differently.

Services and Usage

The +359 4713 prefix is primarily used for fixed-line telephony, including PSTN and ISDN services. It is also used for VoIP services that are assigned geographic numbers, allowing businesses to maintain a local presence in the area. The code is not used for mobile services, which are allocated separate non-geographic prefixes (e.g., +359 87, +359 88, +359 89). For businesses, having a local geographic number can enhance trust and accessibility for customers in the Stara reka area. When calling from abroad, it is important to note that international tariffs apply, and the call will be routed to the Bulgarian fixed network.