Area Code 3554 – Kozarsko
The phone area code for Kozarsko is 3554 (international format +3593554). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3554
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Kozarsko
Geographic Overview
The area code 3554 is a geographic National Destination Code (NDC) within the Bulgarian numbering plan, assigned to the town of Kozarsko and its surrounding settlements. Kozarsko is located in the southern part of Bulgaria, within the administrative boundaries of Plovdiv Province. The code serves the local PSTN (Public Switched Telephone Network) exchanges, providing fixed-line telephony services to residential, commercial, and public sector subscribers in this rural region.
Dialing Formats
When calling a fixed-line number in Kozarsko from within Bulgaria, subscribers must use the trunk prefix 0 followed by the area code and the local subscriber number. The national dialing format is: 0 3554 XXX XXX (where X represents the local digits). For example, a local number might be dialed as 03554 123 456 from another Bulgarian city.
For international callers, the country code for Bulgaria is +359, and the leading trunk prefix 0 is omitted. The international format becomes: +359 3554 XXX XXX. For instance, a caller from abroad would dial +359 3554 123 456 to reach a subscriber in Kozarsko.
Caller Instructions
- Local callers (within Kozarsko): Depending on the local exchange configuration, it may be possible to dial only the subscriber number (without the area code) for calls within the same local area. However, for clarity and consistency, it is recommended to always use the full national format.
- National callers (from other Bulgarian regions): Dial 0 3554 followed by the subscriber number.
- International callers: Dial the international access prefix (e.g., 00 from most countries), then 359, then 3554, and finally the subscriber number. Do not include the leading 0.
Numbering and Overlay Considerations
As of the latest ITU-T E.164 national numbering plan updates, there are no overlay codes or area code splits affecting 3554. The subscriber numbers within this code typically consist of 6 to 7 digits, resulting in a total number length of 10 digits (including the leading 0) for national dialing. The geographic nature of the code means that tariffs are typically based on the distance and duration of the call, though many operators now offer flat-rate national calling plans.
Businesses and residents in Kozarsko may also use VoIP services that allow them to retain their geographic number, but the underlying routing remains tied to the physical location of the exchange.