How to send call me back on all network. ( MTN, Airtel,etisalat,glo)

Some biggiloadedites do ask for call me back code for different network which am going to share today

To send call me on all nigeria basic networks.

1. MTN: To send call me back on MTN, dial *133*the number you wish to send it to# e.g *133*08135771959#
2. AIRTEL: dial *140*recipient no# e.g *140*09086543371#
3. Etisalat: dial *266*recipient no# e.g *226*08097638392#
4. Glo: dial *125*recipient# e.g *125*0805643961#

that's all for the 4 big networks