Area Code 625 – Parapat/Ajibata/Simanindo

Geographic Coverage and Administrative Jurisdiction

The +62 625 country calling code prefix designates a specific geographic numbering area within the Republic of Indonesia, allocated under the national numbering plan administered by the Ministry of Communication and Information Technology (Kominfo). This prefix serves the region surrounding Lake Toba in North Sumatra, encompassing the towns of Parapat, Ajibata, and Simanindo. Parapat is a well-known lakeside resort town in Simalungun Regency, while Ajibata and Simanindo are located in Toba Samosir Regency, on the eastern shore of Lake Toba. The area code 625 is used for fixed-line telephone services (PSTN) within this designated region.

Dialing Formats and Caller Instructions

For domestic callers within Indonesia, the trunk prefix '0' is used before the area code. To call a fixed-line number in Parapat, Ajibata, or Simanindo from elsewhere in Indonesia, you would dial: 0 625 XXXX XXXX. For example, if the local number is 1234567, the domestic format is 0625 1234567. International callers must replace the trunk prefix with Indonesia's country calling code +62, omitting the leading '0'. Thus, the international format becomes +62 625 XXXX XXXX, e.g., +62 625 1234567.

Local Dialing and Overlays

Within the 625 area code region, local calls between subscribers in the same area can typically be made using only the subscriber number, without the area code, depending on the specific local exchange configuration. As of the latest updates, there is no overlay code in this region, meaning the 625 area code is the sole geographic code for this area. However, users should always verify with their service provider, as local dialing procedures may vary.

Numbering Structure and Technical Notes

Fixed-line numbers under the 625 prefix typically consist of 7 to 8 digits in total, including the area code. The national significant number (NSN) for Indonesia is usually 9 to 11 digits, including the leading '0' for domestic calls. The 625 area code is part of the geographic numbering plan, meaning that the tariff for calls is based on the distance and duration, as regulated by the Indonesian telecommunication regulatory body.

Practical Guidance for Callers

For travelers or businesses needing to contact parties in Parapat, Ajibata, or Simanindo, it is essential to use the correct international format when calling from abroad. Always replace the trunk prefix '0' with +62. For example, to call a number listed as (0625) 7654321, you would dial +62 625 7654321 from outside Indonesia. Ensure you have the correct country code and area code to avoid misdialing, as Indonesia has many area codes with similar patterns.