U-Call Tonga number prefixes
U-Call Tonga prefixes in Tonga: 721, 731, 741, 751, 761, 771, 781, 791. Number format +676 721 XXXX.
721
- Country
Tonga +676- Prefixes
- 721, 731, 741, 751, 761, 771, 781, 791
- Number format
- +676 721 XXXX
- Within the country
- 721 XXXX
- Number ranges
- 72, 73, 74, 75, 76, 77, 78, 79
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.