Area Code 4552 – Stara reka, Sliven

Overview of Area Code 4552 (Stara Reka, Sliven)

Area code 4552 is a geographic National Destination Code (NDC) within the Bulgarian national numbering plan, conforming to ITU-T E.164 standards. It serves the town of Stara Reka and its immediate vicinity, which falls under the administrative jurisdiction of Sliven Province in central Bulgaria. This code is allocated for fixed-line (PSTN) services, and it is used for both local and international dialing.

Geographic Coverage and Administrative Context

Stara Reka is a small town located in the eastern part of the Upper Thracian Plain, approximately 30 kilometers south of the provincial capital, Sliven. The area code 4552 covers not only the town itself but also several surrounding villages and rural localities that are part of the local telephone exchange. The region is characterized by a mix of residential areas, agricultural zones, and small businesses, all of which rely on the fixed-line infrastructure.

Dialing Formats and Instructions

For callers within Bulgaria, the local dialing format requires the trunk prefix 0 followed by the area code and the subscriber number. For example, to call a fixed line in Stara Reka from another Bulgarian city, you would dial: 0 4552 XXXXX (where XXXXX is the 5-digit local subscriber number). The total number of digits after the trunk prefix is 9, making the complete national significant number 9 digits long.

For international callers, the Bulgarian country code +359 replaces the trunk prefix. Thus, an international call to Stara Reka would be dialed as: +359 4552 XXXXX. It is important to note that the leading '0' is not used when dialing from abroad.

Within the same local area (i.e., when both parties are under the 4552 exchange), it may be possible to dial only the subscriber number without the area code, depending on the specific local dialing rules. However, for clarity and to avoid misdialing, it is recommended to always use the full national format.

Overlay and Numbering Considerations

Currently, there is no overlay code for the 4552 area. The numbering capacity is sufficient for the local demand, and number lengths are standardized. As with all geographic codes in Bulgaria, number portability is available, meaning that a subscriber may retain their number even if they switch to a different fixed-line operator, as long as they remain within the same geographic area.

Caller Instructions

• Local callers (within Bulgaria): Dial 0 4552 XXXXX.
• International callers: Dial your country's exit code, then 359 4552 XXXXX (omit the leading '0').
• Callers from mobile phones: Mobile users in Bulgaria can dial the same national format as fixed-line users, i.e., 0 4552 XXXXX.

Understanding the correct dialing procedure ensures efficient call routing and avoids unnecessary call failures. For any further assistance, consult your telecom service provider.