257 Country Code: Burundi (+257)
Country code 257 (+257) belongs to Burundi. Burundi uses the international dialing code +257, assigned by the International Telecommunication Union (ITU) under the E.164 standard. The ISO 3166-1 alpha-2 code is BI.
You will see the same code written several ways depending on origin: +257 (universal + prefix, works from mobile), 00257 (from countries that use 00 as their international exit code — most of Europe, Asia, and Latin America), 011 257 (from the US and Canada), 0011 257 (from Australia), or the bare 257. All refer to the same Burundi country code. Note: 257 is not a US area code — US area codes are also 3 digits but +257 is the international dialing code for Burundi, not a domestic US destination.
Below you will find the number format, trunk prefix, major city area codes, and dialing facts specific to Burundi (+257).
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Did You Get a Call from +257? Here's What That Means
Any incoming call that displays +257 followed by more digits is originating from Burundi. The caller is dialing you from a Burundi-registered phone number — either a landline or a mobile on a Burundi carrier.
Common reasons people receive calls from +257:
- -Family or friends in Burundi calling from a local number
- -Business contacts at Burundi-based companies
- -Customer support agents working from a Burundi call center
- -Travel-related calls (hotels, airlines, tour operators)
- -Less commonly, robocalls or scam calls that have spoofed a +257 number — if the call is unsolicited, do not return it without verifying the source
Burundi Phone Number Format
International Format Example
Burundi does not use a trunk prefix, so domestic and international formats are effectively the same — just prepend +257.
Calling Burundi Successfully: Common Mistakes & Best Practices
Most failed calls to Burundi come from one of four mistakes, not from network problems. The most common is mishandling the country code itself: Burundi uses +257 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 Burundi number plan.
The second is misreading the area code on landline numbers — Burundi 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 — Burundi 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: +257 is the legitimate Burundi country code, and most unsolicited calls from +257 numbers are legitimate calls from Burundi-based businesses, hospitals, family members, or call centers serving US customers. Caller-ID spoofing exists, so if a call from a +257 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 +257 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.
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Call any Burundi number (+257) directly from Chrome, Firefox, Safari, or Edge. No install required. Use it in under 2 minutes.
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Frequently Asked Questions: Burundi Country Code
Which country is country code 257?
Country code 257 belongs to Burundi. The full international dialing code is +257, also written as 00257 from countries using 00 as their international exit code (Europe, most of Asia, Latin America), 011 257 from the US and Canada, or +257 from any mobile phone.
What is the country code for Burundi?
+257 is the international dialing code for Burundi, assigned by the ITU under E.164. The ISO 3166-1 alpha-2 code is BI. Equivalent forms — 00257, 011 257, +257, and 257 — all refer to the same Burundi country code.
Is 257 a US area code?
No. 257 is the international country code for Burundi, not a US area code. US area codes are also 3 digits but they are domestic North American Numbering Plan codes — to reach Burundi from the US, dial +257 or 011 257 followed by the local number.
Can I call Burundi from my browser?
Yes. Kinvo connects calls to Burundi via WebRTC directly from Chrome, Firefox, Safari, or Edge. No app download. Sign up, add credits from $5, and dial +257 followed by the local number.