Area Code 3164 – Dalbok izvor

Overview of Area Code 3164

Area code 3164 is a geographic National Destination Code (NDC) within the Bulgarian numbering plan, assigned to the town of Dalbok izvor and its surrounding area. It is part of the Plovdiv Province, located in south-central Bulgaria. The code is used for fixed-line (PSTN) services, and calls to this destination are routed over the public switched telephone network.

Geographic Coverage and Administrative Jurisdiction

The 3164 area code serves the administrative territory of Dalbok izvor, a small town in the municipality of Parvomay. The region is primarily rural, with agriculture being the main economic activity. The code covers the town itself and several nearby villages, providing local telephony services to residents and businesses. The area is within the larger Plovdiv statistical region, but it is distinct from the Plovdiv city code (032).

Dialing Formats and Instructions

For callers within Bulgaria, the local dialing format requires dialing 0 followed by the area code and the subscriber number. The national significant number (NSN) for Dalbok izvor is 8 digits long, consisting of the NDC (3164) and a 4-digit subscriber number. For example, a local number might be 3164 1234. To call from another Bulgarian city, dial 0 3164 1234.

For international callers, the Bulgarian country code is +359, and the leading zero of the area code is dropped. Thus, an international call to the same number would be dialed as +359 3164 1234. It is important to note that the area code is an integral part of the number and cannot be omitted when calling from outside the local area.

Overlay and Numbering Considerations

As of the latest ITU-T E.164 guidelines, there are no overlay codes for 3164, meaning the code is exclusively used for the Dalbok izvor area. The Bulgarian Communications Regulation Commission (CRC) manages the numbering plan, and no changes have been announced that would affect this code. Subscriber numbers within this code are typically 4 digits, but some older lines may have fewer digits; however, the standard format is 4 digits after the NDC.

Caller Instructions

Local callers within Dalbok izvor may be able to dial the subscriber number directly without the area code, depending on the local network configuration. However, for consistency and to avoid misdialing, it is recommended to always include the area code when dialing from a mobile phone or from another fixed line. Foreign callers should ensure they have the correct international prefix (e.g., 00 from most European countries) before dialing the country code.