Area Code 644 – Bireuen

Overview of Area Code +62 644

The +62 644 country calling code prefix is assigned to the Bireuen Regency (Kabupaten Bireuen) in the province of Aceh, on the northern tip of Sumatra, Indonesia. This is a geographic area code under the ITU-T E.164 numbering plan, meaning that the prefix is tied to a specific physical location and is used for fixed-line (PSTN) services within that region.

Geographic Coverage and Administrative Jurisdiction

Bireuen Regency is located along the northeastern coast of Aceh, bordered by the Malacca Strait to the north. The area code covers the entire regency, including its capital, Bireuen City, and the surrounding districts (kecamatan) such as Jeumpa, Peudada, Gandapura, and Jangka. The administrative jurisdiction falls under the provincial government of Aceh, which is known for its special autonomy status.

Dialing Formats

For callers within Indonesia, the trunk prefix 0 is used before the area code. Therefore, to call a fixed line in Bireuen from another part of Indonesia, you would dial:

• Local (within Bireuen): 644 XXXX (if using a local exchange, often 7-digit subscriber numbers)
• National (from other Indonesian cities): 0 644 XXXX
• International (from abroad): +62 644 XXXX (drop the leading 0)

For example, a local number in Bireuen might be 644 12345. To call this from Jakarta, you would dial 0644 12345. From the United States, you would dial 011 62 644 12345 (or +62 644 12345 on a mobile phone).

Overlay and Numbering Considerations

Currently, there is no overlay code for the Bireuen area; 644 is the sole area code for the region. Subscriber numbers are typically 5 to 7 digits long, depending on the exchange capacity. As with all Indonesian fixed-line numbers, the total length of the national significant number (NSN) is usually 9 to 11 digits, including the area code.

Caller Instructions

For local callers: If you are within the Bireuen area, you may be able to dial just the subscriber number (without the area code) for local calls, depending on your telephone exchange. However, for clarity and to avoid misdialing, it is recommended to always include the area code when dialing from a mobile phone.

For international callers: Always replace the trunk prefix '0' with the country code '+62'. Ensure you have the correct international exit code for your country (e.g., 011 from North America, 00 from most European countries).

It is important to note that with the rise of VoIP and mobile telephony, some fixed-line numbers may be routed over IP networks, but the geographic significance of the prefix remains for regulatory and emergency services purposes.