Area Code 3775 – Generalovo

Overview of Area Code 3775 (Generalovo, Bulgaria)

Area code 3775 is a geographic National Destination Code (NDC) within the Bulgarian numbering plan, assigned to the region of Generalovo and its surrounding localities. Generalovo is a village situated in the southern part of Bulgaria, within the administrative jurisdiction of the Kardzhali Province. The code is part of the 3xxx series used for fixed-line services in the southern-central region of the country.

Geographic Coverage and Administrative Jurisdiction

The 3775 area code serves the village of Generalovo and nearby settlements, which fall under the municipality of Kirkovo. This area is characterized by its proximity to the Greek border and the Eastern Rhodope mountains. The code is allocated for fixed-line telephony, connecting subscribers within this rural district to the national and international PSTN network.

Dialing Formats and Caller Instructions

• Local dialing (within Bulgaria): When calling from another fixed or mobile line within Bulgaria, subscribers must dial the trunk prefix 0 followed by the area code and the subscriber number. For example, to reach a local number 123456, dial 0 3775 123456.
• International dialing (from outside Bulgaria): Callers from abroad should dial the international access prefix (e.g., 00 from most countries, or +), followed by the Bulgarian country code 359, then the area code 3775 (without the leading zero), and the subscriber number. For instance, +359 3775 123456.

Numbering Plan and Overlay Considerations

Bulgarian geographic numbers typically consist of 7 to 8 digits in total when including the area code. In the case of 3775, the subscriber number is usually 6 digits long, making the complete national significant number (NSN) 10 digits (including the leading 0). As of the latest ITU-T E.164 guidelines, Bulgaria has not implemented overlays for most geographic codes, so the 3775 code remains exclusively for the Generalovo area. However, number portability allows subscribers to retain their numbers when changing operators within the same geographic region.

Practical Usage and Services

Subscribers under 3775 are primarily residential and business fixed lines. The area supports standard PSTN services, including voice calls, fax, and basic data services. For local callers, dialing within the same area code may require only the subscriber number, but it is advisable to use the full national format to avoid confusion. For international callers, it is essential to replace the leading zero with the +359 country code. This code does not cover mobile services; mobile numbers in Bulgaria use separate non-geographic prefixes such as 87, 88, 89, and 98.