How to call the British Indian Ocean Territory (Diego Garcia) (country code +246)

Dialing sequence

Calling to a mobile (cellular) phone

Mobile phones are dialed with the same call sequence as regular landline phones.

Mobile phone numbers in the British Indian Ocean Territory start with ’38’.

Calling to a satellite phone

There are no country-specific satellite phone ranges listed for the British Indian Ocean Territory.

Some satellite phones in the territory may be based on their own country code – common providers are: Inmarsat (+870, +871, +872, +873, +874)Iridium (+881 6 / +881 7)Globalstar (+881 8 / +881 9, as well as country-specific numbers), and Thuraya (+882 16).

Calling within the British Indian Ocean Territory

All domestic calls are dialed with the seven number sequence.

seven digit number
local phone number

British Indian Ocean Territory phone numbers explained

Phone number structure

+246seven digits
British Indian Ocean Territory country codelocal phone number

British Indian Ocean Territory country code: +246 – the country code for the British Indian Ocean Territory in the international phone system.

Local phone number: seven digits.

Mobile phones begin with ’38’. Landline (fixed line) phones begin with ’37’.

Calling internationally from the British Indian Ocean Territory

’00’ is used as an international exit code when dialing an international call from the British Indian Ocean Territory.

Administrative and regulatory

Sources and more resources