- 0637001990 : Spam....
- 0637002168 : zero six three - seven zero zero - two one six eight
- 0637002376 : zero six three - seven zero zero - two three seven six
- 0637002476 : Keeps on calling. No one speaks when picking up (silent call)...
- 0637003016 : zero six three - seven zero zero - three zero one six
- 0637017206 : zero six three - seven zero one - seven two zero six
- 0637330169 : zero six three - seven three three - zero one six nine
- 0637392143 : zero six three - seven three nine - two one four three
- 0637640926 : zero six three - seven six four - zero nine two six
- 0637762726 : zero six three - seven seven six - two seven two six
- 0637770096 : zero six three - seven seven seven - zero zero nine six
- 0637841181 : Spam....
- 0637905291 : zero six three - seven nine zero - five two nine one
- 0637924412 : This number called me and there was no one on the other line. The cal last 7 sec..
637 - Vodacom
Vodacom - 637 unknown numbers service