Oi number prefixes
Oi prefixes in Brazil: 11, 12, 13, 14, 15, 16, 17, 18, 21, 22, 24, 27…. Number format +55 11 XXXXX-XXXX.
11
- Country
Brazil +55- Prefixes
- 11, 12, 13, 14, 15, 16, 17, 18, 21, 22, 24, 27, 28, 31, 32, 33, 34, 35, 37, 38, 71, 73, 74, 75, 77, 79, 81, 82, 83, 84, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 96, 97, 98, 99
- Number format
- +55 11 XXXXX-XXXX
- Within the country
- (11) XXXXX-XXXX
- Number ranges
- 21985, 21986, 21987, 21988, 21989, 22985, 22986, 22987, 22988, 22989, 24985, 24986, 24987, 24988, 24989, 27985, 27986, 27987, 27988, 27989, 28985, 28986, 28987, 28988, 28989, 31985, 31986, 31987, 31988, 31989, 32985, 32986, 32987, 32988, 32989, 33985, 33986, 33987, 33988, 33989, 34985, 34986, 34987, 34988, 34989, 35985, 35986, 35987, 35988, 35989, 37985, 37986, 37987, 37988, 37989, 38985, 38986, 38987, 38988, 38989 …
A prefix shows which operator a number range was originally assigned to. In many countries subscribers can port their number to another operator, so the prefix does not guarantee the current operator.