Area Code 981 – Biak

Area code 981 is a geographic National Destination Code (NDC) assigned to the Biak region in Indonesia, part of the Papua province. This code is used for fixed-line telephone services within the Biak Numfor Regency, which encompasses the islands of Biak, Supiori, and Numfor, as well as smaller surrounding islets. The administrative center and largest city served by this code is Biak City (Kota Biak), a major port and the gateway to the Schouten Islands.

Geographic Coverage and Administrative Jurisdiction

The 981 area code covers the entire Biak Numfor Regency, which is administratively divided into several districts (kecamatan), including Biak Kota, Biak Utara, Biak Timur, and Samofa. The region is known for its strategic location in Cenderawasih Bay and its role as a hub for eastern Indonesia's maritime and aviation activities. The code also serves the nearby island of Supiori, which is a separate regency but shares the same telephony infrastructure due to its close geographic and economic ties.

Dialing Formats

When calling a fixed-line number in Biak from within Indonesia (outside the local area), you must dial the trunk prefix 0, followed by the area code 981, and then the subscriber number. For example, to reach a landline in Biak City, you would dial:

• 0981-XXXXX (domestic format, where XXXXX is the 5-digit local subscriber number).

For international callers, the format is +62 981 XXXXX, omitting the leading zero. For instance, a caller from the United States would dial 011 62 981 XXXXX, while a caller from the United Kingdom would dial 00 62 981 XXXXX. It is essential to note that the subscriber number is typically 5 to 7 digits long, and the total length of the national significant number (NSN) is usually 8 to 10 digits, including the area code but excluding the trunk prefix.

Local and International Caller Instructions

Local callers within the Biak area can often dial just the subscriber number without the area code, depending on the specific network configuration. However, for clarity and to avoid misdialing, it is recommended to use the full domestic format. For international callers, ensure you replace the leading zero with the country code +62 and drop any additional prefixes. Always verify the subscriber number length with the recipient, as some numbers may have been migrated or assigned additional digits due to network expansions.

Overlay and Numbering Considerations

Currently, there is no overlay code for the 981 area, meaning the code is exclusively used for Biak and its surrounding areas. However, as Indonesia's telecommunication infrastructure evolves, especially with the expansion of VoIP and mobile services, the demand for numbering resources may increase. It is advisable to check with your service provider for any recent changes in dialing procedures, particularly if you are using a VoIP service or a mobile phone that may require the area code even for local calls.