British Indian Ocean Territory phone number format
Every number type in British Indian Ocean Territory with real format examples: how numbers are written domestically, how to dial them from abroad, and the E.164 form your systems should store.
Right now in British Indian Ocean Territory
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Country code
+246
Trunk prefix
none
Intl. call prefix
00
Mobile digits
7
Number formats by type
Examples from the official numbering plan metadata. The E.164 column is the normalized form for databases and APIs.
Type
Domestic (national)
From abroad
E.164
Digits
Landline
370 9100
+246 370 9100
+2463709100
7
Mobile
380 1234
+246 380 1234
+2463801234
7
How to call British Indian Ocean Territory
From abroad: dial +246 (or your country's exit code, e.g. 00 from Europe, 011 from North America), then the national number. Example: +246 380 1234
Within British Indian Ocean Territory: dial the number as written domestically. Example: 380 1234
Calling abroad from British Indian Ocean Territory: the international prefix is 00, or simply use + on mobiles.
Storing numbers in software: always store E.164 (+2463801234): unambiguous, sortable, and what SMS and telephony APIs expect.
Exact dial sequence from your country
Pick where you are calling from and get the digit-for-digit sequence for a British Indian Ocean Territory number, with your country's exit code instead of the generic +.
Dial exactly
Frequently Asked Questions
What is the phone number format in British Indian Ocean Territory?
Numbers in British Indian Ocean Territory use country code +246. A mobile number looks like 380 1234 domestically, or +246 380 1234 in international format (E.164: +2463801234). Mobile numbers have 7 national digits.
How do I call British Indian Ocean Territory from abroad?
Dial your country's international prefix (or +), then 246, then the national number. Example: +246 380 1234.
What is the country calling code for British Indian Ocean Territory?
The country calling code for British Indian Ocean Territory is +246. To call abroad from British Indian Ocean Territory, the international prefix is 00 (or use +).
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