Area Code 297 – Karimun Jawa

Overview of Area Code +62 297

Area code 297 is a geographic National Destination Code (NDC) assigned to the Karimunjawa archipelago, an administrative district within the Jepara Regency of Central Java, Indonesia. This code serves the main island of Karimunjawa and the surrounding islands that form the Karimunjawa National Park, a popular marine conservation area. The region is known for its coral reefs, white-sand beaches, and ecotourism, with the primary administrative and commercial center located on Karimunjawa Island.

Geographic Coverage and Administrative Jurisdiction

The +62 297 prefix covers all landline telephone services within the Karimunjawa district, including the islands of Kemujan, Parang, Nyamuk, and Genting. The district is part of the Jepara Regency, Central Java province, but is geographically isolated from the mainland, requiring sea or air transport. The code is managed by the Indonesian telecommunications regulator (BRTI) and is allocated exclusively for fixed-line services in this area.

Dialing Formats and Caller Instructions

• Local callers (within Indonesia): Dial 0297 followed by the subscriber number. For example, to reach a local number 12345, dial 0297 12345.
• International callers: Dial the Indonesian country code +62, then the area code without the leading zero, and the subscriber number. For instance, +62 297 12345.
• Calling from Karimunjawa to other Indonesian cities: Dial the trunk prefix 0, then the destination area code and subscriber number (e.g., 021 for Jakarta).

Subscriber numbers in Karimunjawa typically consist of 5 to 7 digits, depending on the exchange capacity. The total number length for international dialing (including country code and NDC) is typically 10 to 12 digits.

Overlay and Numbering Considerations

As of the latest ITU-T E.164 national numbering plan, there is no overlay code for the Karimunjawa area. The 297 code is the sole geographic code for this region. However, due to the growth of mobile services and VoIP, many residents and businesses also use mobile numbers with prefixes such as 0812, 0813, etc., which are non-geographic and not tied to this area code.

Importance for Businesses and Tourism

For businesses operating in the tourism sector, having a local fixed-line number with the 297 code reinforces a local presence and can be more accessible for domestic callers. However, with the increasing reliance on mobile and internet-based communication, the use of fixed lines is declining. Still, for official communications, government offices, and older established businesses, the 297 code remains relevant.

When dialing from abroad, it is essential to use the correct international format to avoid misrouting. Always verify the subscriber number length with your contact, as it may vary.