Tonga Phone Numbers: Format, Area Code & Validation Guide - phone-number-standards -

Frequently Asked Questions

The country code for Tonga is +676. This code is required when dialing Tongan numbers from outside the country. It precedes the subscriber number and is essential for international calls to connect successfully.
To format a Tongan phone number for international calls, prefix the subscriber number with the country code +676 followed by a space. For instance, if the subscriber number is 24567, the international format would be +676 24567. This ensures the call correctly routes through international telecommunication systems.
Tongan landline numbers follow the format [2-8]XXXX, meaning they begin with a digit from 2 to 8, followed by four additional digits. For example, 24567 would be a valid landline number. This format is consistent across all islands of Tonga.
Tongan mobile numbers have a specific format: 7XXXX. This means they always start with the digit 7 and are followed by four more digits. Any number deviating from this pattern (e.g., starting with a different digit, having fewer or more than five digits) is not a valid mobile number.
Tonga adopted a simplified 5-digit format for subscriber numbers to accommodate the population while ensuring future scalability for growth. This decision was strategic, considering the nation's unique telecommunications challenges due to its dispersed geography across 169 islands.
The emergency number in Tonga is 999. This number connects callers to essential services such as police, fire, and medical assistance. Remember to use this number only for genuine emergencies.
Contact the Ministry of Meteorology, Energy, Information, Disaster Management, Environment, Climate Change and Communications (MEIDECC) for any special number requests or to verify the most current telecommunications regulations, which are subject to change.
Currently, golden numbers, those containing repeating digits, are not supported in Tonga's numbering system. The number allocation system is sequential within designated ranges.
For local calls within Tonga, group digits for better readability by placing a space after the first two digits. For example, 71234 could be displayed as 71 234. This isn't required for dialing but enhances visual presentation.
The two primary telecommunications service providers in Tonga are Digicel Tonga and Tonga Communications Corporation (TCC). Digicel focuses on mobile services, while TCC manages both fixed-line and mobile infrastructure.
As of 2018, Tonga had 107,938 mobile cellular subscriptions. This information, sourced from Wikipedia's entry on Telecommunications in Tonga, highlights the growing mobile market in the country.
While 4G/LTE coverage is prevalent across major population centers, 5G capabilities are currently undergoing testing in Tonga. This implies that 5G services are not yet widely available, but they are actively being explored and developed.
A second international undersea cable for Tonga is currently under construction and is projected to be completed by late 2025. This project, funded by the Australian Infrastructure Financing Facility for the Pacific, will significantly improve Tonga's international connectivity redundancy and resilience.
The Tonga Cable System (TCS) is a crucial undersea cable providing international bandwidth for Tonga. Completed in 2013, it has suffered disruptions in the past, highlighting the need for redundant systems like the second cable under construction.
Tonga faced two notable challenges in the past with its telecommunications infrastructure. The first happened in 2019, when the Tonga Cable System broke. The second event happened in 2022 with the Hunga Tonga-Hunga Ha'apai eruption.
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