676 Country Code: Tonga (+676)
Country code 676 (+676) belongs to Tonga. Tonga uses the international dialing code +676, assigned by the International Telecommunication Union (ITU) under the E.164 standard. The ISO 3166-1 alpha-2 code is TO.
You will see the same code written several ways depending on origin: +676 (universal + prefix, works from mobile), 00676 (from countries that use 00 as their international exit code — most of Europe, Asia, and Latin America), 011 676 (from the US and Canada), 0011 676 (from Australia), or the bare 676. All refer to the same Tonga country code. Note: 676 is not a US area code — US area codes are also 3 digits but +676 is the international dialing code for Tonga, not a domestic US destination.
Below you will find the number format, trunk prefix, major city area codes, and dialing facts specific to Tonga (+676).
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Did You Get a Call from +676? Here's What That Means
Any incoming call that displays +676 followed by more digits is originating from Tonga. The caller is dialing you from a Tonga-registered phone number — either a landline or a mobile on a Tonga carrier.
Common reasons people receive calls from +676:
- -Family or friends in Tonga calling from a local number
- -Business contacts at Tonga-based companies
- -Customer support agents working from a Tonga call center
- -Travel-related calls (hotels, airlines, tour operators)
- -Less commonly, robocalls or scam calls that have spoofed a +676 number — if the call is unsolicited, do not return it without verifying the source
Tonga Phone Number Format
International Format Example
Tonga does not use a trunk prefix, so domestic and international formats are effectively the same — just prepend +676.
Calling Tonga Successfully: Common Mistakes & Best Practices
Most failed calls to Tonga come from one of four mistakes, not from network problems. The most common is mishandling the country code itself: Tonga uses +676 with no trunk prefix to remove, so you dial it as-is. The most frequent error is adding a leading 0 by habit — there is none in the Tonga number plan.
The second is misreading the area code on landline numbers — Tonga numbers may have variable formatting depending on the carrier and city, so confirm the area code with the recipient before dialing. The third is dialing during off-hours — Tonga uses local business hours and consumer phones are usually answered between 8 AM and 9 PM local time. The fourth and most expensive mistake is assuming your US carrier's WiFi calling feature makes the call cheap. It does not — see WiFi calling vs VoIP for international calls for why.
For scam-call awareness: +676 is the legitimate Tonga country code, and most unsolicited calls from +676 numbers are legitimate calls from Tonga-based businesses, hospitals, family members, or call centers serving US customers. Caller-ID spoofing exists, so if a call from a +676 number claims to be from a US government agency, your bank, or the IRS, hang up and call the agency back on its published number. Real authorities never demand payment over the phone.
When you are ready to place a call, the cheapest reliable route is to dial +676 from your browser using Kinvo — no app, no carrier add-on, and the per-minute rate is shown before you connect so there are no bill surprises. The browser approach also works from any laptop, tablet, or phone you happen to have access to, which matters when you're traveling, using a work device, or borrowing someone else's computer.
Call Tonga from Your Browser
Call any Tonga number (+676) directly from Chrome, Firefox, Safari, or Edge. No install required. Use it in under 2 minutes.
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Frequently Asked Questions: Tonga Country Code
Which country is country code 676?
Country code 676 belongs to Tonga. The full international dialing code is +676, also written as 00676 from countries using 00 as their international exit code (Europe, most of Asia, Latin America), 011 676 from the US and Canada, or +676 from any mobile phone.
What is the country code for Tonga?
+676 is the international dialing code for Tonga, assigned by the ITU under E.164. The ISO 3166-1 alpha-2 code is TO. Equivalent forms — 00676, 011 676, +676, and 676 — all refer to the same Tonga country code.
Is 676 a US area code?
No. 676 is the international country code for Tonga, not a US area code. US area codes are also 3 digits but they are domestic North American Numbering Plan codes — to reach Tonga from the US, dial +676 or 011 676 followed by the local number.
Can I call Tonga from my browser?
Yes. Kinvo connects calls to Tonga via WebRTC directly from Chrome, Firefox, Safari, or Edge. No app download. Sign up, add credits from $5, and dial +676 followed by the local number.