Area Code 553 – Malinau
The phone area code for Malinau is 553 (international format +62553). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Malinau
Overview of Area Code 553
Area code 553 is a geographic National Destination Code (NDC) assigned to the Malinau Regency in the province of North Kalimantan (Kalimantan Utara), Indonesia. It is part of the country's open dialing plan, where the trunk prefix 0 is used for domestic calls. The international format replaces the leading 0 with +62 (the country code for Indonesia).
Geographic Coverage and Administrative Jurisdiction
The 553 area code serves the entire administrative region of Malinau Regency, which is located on the island of Borneo. The regency borders Malaysia (Sabah and Sarawak) to the north and is known for its dense rainforests and the Kayan Mentarang National Park. Key districts within the code include the capital, Malinau Kota, as well as remote sub-districts such as Mentarang, Kayan Selatan, and Pujungan. Due to the regency's vast and sparsely populated terrain, the code covers both urban centers and rural communities, with fixed-line services operated primarily by PT Telkom Indonesia.
Dialing Formats and Caller Instructions
For callers within Indonesia (excluding the same area code), the domestic format is:
- 0-553-XXXXXXX (where X denotes the local subscriber number, typically 6-7 digits).
For international callers, the format is:
- +62-553-XXXXXXX (replace the leading 0 with +62).
When calling from a mobile phone within Indonesia, it is essential to include the area code even if the caller is in the same region, unless the number is a local fixed-line call within the same exchange. For calls from outside Indonesia, always use the plus sign (+) followed by the country code and area code, omitting the trunk prefix 0.
Overlay and Numbering Considerations
As of the latest ITU-T E.164 national numbering plan updates, there is no overlay code for the 553 area. The numbering capacity is sufficient for the current population density. However, with the expansion of telecommunication infrastructure in North Kalimantan, subscribers may experience changes in local number lengths. Always verify the complete number with the recipient to avoid misdialing.
Practical Examples
To illustrate, a fixed-line number in Malinau might be 553-123456. A domestic caller from Jakarta would dial 0553-123456, while an international caller from the United States would dial 011 62 553 123456 (or +62 553 123456 from a mobile phone).