Area Code 642 – Blang Kejeren

Overview of +62 642

The country calling code +62 is assigned to Indonesia under the ITU-T E.164 international numbering standard. The national destination code (NDC) 642 is a geographic area code serving the Blang Kejeren region, located in the Aceh Province on the island of Sumatra. Blang Kejeren is the administrative center of the Gayo Lues Regency, a mountainous area known for its coffee production and natural scenery.

Geographic Coverage and Dialing Formats

The 642 area code covers the Gayo Lues Regency and its surrounding districts, including primary towns such as Blang Kejeren, Rikit Gaib, and Terangun. Subscriber numbers in this region typically consist of 5 to 7 digits after the area code, resulting in a total national significant number (NSN) length of 9 to 11 digits, including the leading '0'.

For local calls within the 642 area, callers can often dial the subscriber number directly without the area code, depending on the specific local exchange configuration. However, for calls from other regions in Indonesia, the full national format must be used: 0 642 XXXX XXXX (replace X with the actual subscriber number).

For international callers, the country code and area code are used without the trunk prefix '0'. The correct international format is: +62 642 XXXX XXXX. For example, if a local subscriber number is 12345, the international dialing format would be +62 642 12345.

Caller Instructions

• Local callers (within 642): Dial the subscriber number directly (if supported) or use the full national format 0642 XXXXX.
• Domestic callers (outside 642): Dial 0642 XXXXX from any phone in Indonesia.
• International callers: Dial your country's exit code (e.g., 00 or 011), followed by 62 642 XXXXX. Do not include the leading '0'.

Overlay and Numbering Considerations

As of the latest ITU-T and national numbering plan updates, there is no overlay code for the 642 area. The region continues to use the traditional geographic numbering scheme. Subscriber numbers are allocated by the Indonesian telecommunications regulator (BRTI) to local fixed-line operators, primarily Telkom Indonesia and other regional providers.

When dialing from a mobile phone, the same rules apply: use the area code and subscriber number. Mobile networks in Indonesia do not require any additional prefix for domestic calls to fixed lines.

For the most accurate and up-to-date dialing procedures, always consult your service provider or the official BRTI numbering plan.