Prefixes for Oi
The following prefixes for Oi are routed via our SMS service:
- 31
- 2186
- 2187
- 2188
- 2288
- 2488
- 2788
- 2888
- 3187
- 3188
- 3288
- 3388
- 3488
- 3588
- 3788
- 3888
- 7187
- 7188
- 7388
- 7488
- 7588
- 7788
- 7988
- 8187
- 8188
- 8288
- 8388
- 8488
- 8587
- 8588
- 8688
- 8788
- 8888
- 8988
- 9187
- 9188
- 9288
- 9388
- 9488
- 9588
- 9688
- 9788
- 9888
- 9988