Area Code 622 – Pematangsiantar/Pematang Raya/Limapuluh

Overview of Area Code 622

Area code 622 is a geographic National Destination Code (NDC) within the Indonesian numbering plan, assigned to the city of Pematangsiantar and its surrounding areas, including Pematang Raya and Limapuluh, in the province of North Sumatra. This code is part of the +62 country calling code (Indonesia) and is used for fixed-line (PSTN) services. The region is served by several telecommunications operators, and the code is allocated for landline numbers, not mobile services.

Geographic Coverage and Administrative Jurisdiction

The 622 area code covers the administrative city of Pematangsiantar (Kota Pematangsiantar) and the nearby districts of Pematang Raya and Limapuluh, which are part of the Simalungun Regency. Pematangsiantar is the second-largest city in North Sumatra after Medan and serves as a commercial and educational hub. The code also extends to surrounding rural areas that rely on the same local exchange infrastructure.

Dialing Formats and Instructions

For callers within Indonesia (domestic calls), the dialing format is: 0 622 [subscriber number]. The subscriber number typically consists of 6 to 8 digits, depending on the operator and service type. For example, a local number might be dialed as 0622 123456.

For international callers, the format is: +62 622 [subscriber number] (or 0062 622 ... from many countries). For instance, if the local number is 123456, the international format would be +62 622 123456. Note that the leading '0' is dropped when dialing from abroad.

When dialing within the same area code, callers may omit the area code and dial only the subscriber number, but this practice is becoming less common with the rise of overlay and multi-operator environments. Always check with your local service provider for specific dialing instructions.

Overlay Considerations and Numbering Changes

Currently, there is no overlay code for the 622 area. However, as demand for numbers increases, the Indonesian Telecommunication Regulatory Authority (BRTI) may introduce overlays or migrate to 8-digit subscriber numbers. Users should be aware that number portability may allow fixed-line numbers to be transferred between operators, but the geographic code remains tied to the location.

Caller Instructions

• Local callers (within 622): Dial the subscriber number directly (e.g., 123456).
• Domestic callers from other regions: Dial 0 622 [subscriber number] (e.g., 0 622 123456).
• International callers: Dial +62 622 [subscriber number] (e.g., +62 622 123456).

For emergency or special services, always use the national emergency numbers (e.g., 112) rather than local area codes.