Area Code 3661 – Ivaylovgrad
The phone area code for Ivaylovgrad is 3661 (international format +3593661). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3661
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Ivaylovgrad
Overview of Area Code 3661 (Ivaylovgrad, Bulgaria)
Area code 3661 is a geographic National Destination Code (NDC) assigned to the town of Ivaylovgrad and its surrounding municipalities in the Haskovo Province of southern Bulgaria. This code is part of the Bulgarian national numbering plan, which adheres to ITU-T E.164 recommendations. When dialing from abroad, the full international format is +359 3661 XXX XXX, where +359 is the country calling code for Bulgaria, 3661 is the area code (NDC), and the subscriber number typically consists of 6 digits, making the total national significant number (NSN) length 9 digits (including the leading '0' used for domestic dialing).
Geographic Coverage and Administrative Jurisdiction
Ivaylovgrad is a small town located in the southeastern part of Bulgaria, near the border with Greece. The area code 3661 serves not only the town itself but also the surrounding villages and rural areas within the Ivaylovgrad Municipality. This region is known for its scenic landscapes, historical sites, and proximity to the Arda River. The administrative jurisdiction falls under the Haskovo Province, and the local economy is primarily based on agriculture, small-scale industry, and tourism.
Dialing Formats and Caller Instructions
- Domestic calls (within Bulgaria): To call a landline in Ivaylovgrad from another Bulgarian city, dial 0 3661 XXX XXX. The leading '0' is the trunk prefix used for national calls.
- International calls (from outside Bulgaria): Dial the international access prefix (e.g., 00 from most countries), followed by 359 3661 XXX XXX. Do not include the leading '0' of the domestic format.
- Local calls (within the same area code): In many cases, local calls can be made using only the 6-digit subscriber number, but this depends on the specific operator and local dialing procedures. For clarity, always use the full national format when in doubt.
Overlay and Numbering Considerations
As of the latest ITU-T and Bulgarian Communications Regulation Commission (CRC) updates, there is no overlay code for the Ivaylovgrad area. The 3661 code is exclusively assigned to geographic landline services. However, number portability allows subscribers to retain their numbers when switching between fixed-line operators, provided the service address remains within the same geographic area. This means that a number with the 3661 prefix may be served by any licensed fixed-line operator, not only the incumbent.
Practical Examples
- To call a landline in Ivaylovgrad from Sofia, Bulgaria: 0 3661 123456.
- To call the same number from London, UK: 00 359 3661 123456.
- To call from the United States: 011 359 3661 123456.
Understanding the correct dialing format is crucial for both local residents and international callers to ensure seamless connectivity to this picturesque region of Bulgaria.