British Indian Ocean Territory Area Country Phone Code
+0
How to dial a phone number in British Indian Ocean Territory?
From outside British Indian Ocean Territory, a caller would dial their international call prefix (typically 00 in Europe and 011 in North America), followed by 0 (the country code for British Indian Ocean Territory), then the 2-3 digit area code of the place you're calling minus the trunk code '0', and finally the local number minus the trunk code '0'.
