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Indonesia ☎️ Landline / Geographic

Area Code 551 – Tarakan

The phone area code for Tarakan is 551 (international format +62551). Browse local exchange codes (NXX) and carrier assignments below.

Current Local Time
11:08:20
UTC • UTC +00:00
Full Dialing Format
+62551
Population 255,310
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Admin Region North Kalimantan
🗺️
Elevation 29m
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GPS Coordinates 3.3133, 117.5915
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📍 Geographic Location of Tarakan

Overview of Area Code 551 (Tarakan, Indonesia)

Area code 551 is a geographic National Destination Code (NDC) assigned to the city of Tarakan and its surrounding administrative region in North Kalimantan province, Indonesia. Tarakan is an island city located off the coast of Borneo, serving as a major economic and logistical hub for the region. The code 551 is used for fixed-line (PSTN) services within this area, and it is part of Indonesia's national numbering plan under the country calling code +62.

Geographic Coverage and Jurisdiction

The 551 area code covers the administrative city of Tarakan (Kota Tarakan), which includes the districts of Tarakan Barat, Tarakan Timur, Tarakan Tengah, and Tarakan Utara. It also serves nearby settlements on the mainland that rely on Tarakan's telecommunication infrastructure. As a geographic code, it is tied to the physical location of the subscriber's line, and calls to 551 numbers are routed via the PSTN to the Tarakan exchange.

Dialing Formats and Instructions

For callers within Indonesia, dialing a Tarakan fixed-line number requires the trunk prefix 0 followed by the area code and the subscriber's local number. The local number typically consists of 6 to 7 digits, making the complete national significant number (NSN) 8 to 9 digits after the trunk prefix. For example, a local Tarakan number might be formatted as:

  • Local dialing (within Tarakan): 551 XXX XXX (if using the area code) or just the local number if within the same exchange.
  • National long-distance dialing (from other Indonesian cities): 0 551 XXX XXX
  • International dialing (from abroad): +62 551 XXX XXX (drop the leading 0).

For instance, if the local number is 123456, a caller from Jakarta would dial 0551 123456, while an international caller would dial +62 551 123456.

Overlay and Numbering Considerations

As of the latest updates, there is no overlay code for the 551 area; the code remains exclusively assigned to Tarakan. However, with the growth of VoIP and mobile services, some numbers may be routed over IP networks, but the geographic significance remains for emergency services and regulatory purposes. Callers should note that mobile numbers in Indonesia are non-geographic and begin with 8 (e.g., 0812, 0852), so they are not dialed with the 551 area code.

Practical Guidance for Callers

When calling a Tarakan fixed-line number from abroad, always replace the leading 0 with the country code +62. Ensure you have the correct local number, as omitting the area code will result in a failed call. For businesses, it is essential to display numbers in international format (+62 551 ...) on websites and marketing materials to facilitate global communication.

❓ Frequently Asked Questions

What city does the area code 551 belong to in Indonesia?
Area code 551 belongs to Tarakan, a city in North Kalimantan province, Indonesia. It is used for fixed-line telephone services in that geographic area.
How do I call a Tarakan fixed-line number from abroad?
To call a Tarakan number from abroad, dial your country's international access code (e.g., 011 from the US), then Indonesia's country code 62, followed by the area code 551 and the local number. For example, +62 551 123456. Remember to drop the leading 0 from the area code when dialing internationally.
Is area code 551 used for mobile phones in Tarakan?
No, area code 551 is exclusively for fixed-line (landline) numbers. Mobile phone numbers in Indonesia are non-geographic and start with 8, such as 0812 or 0852, and do not use area codes.
What is the local dialing format for calls within Tarakan?
Within Tarakan, you can often dial just the local number without the area code if you are in the same exchange. For long-distance calls from other Indonesian cities, dial 0, then 551, then the local number (e.g., 0551 123456).
Are there any overlay codes for area 551?
As of now, there is no overlay code for area 551. The code is uniquely assigned to Tarakan, and no additional area codes have been introduced for this region.