Updated: How to Check Your Mobile Phone Number

It looks frustrating sometimes when you want to give out your phone number to a person, only to have find out you don't know it off head. We are humans and we can forget even if we memorized the numbers.
Below are the Short Codes to check your Mobile Numbers on MTN, Etisalat, Glo And Airtel Network.
1) MTN
Dial *663# or Dail *123*1*1#
2) ETISALAT
Simply dial *248*1# and your number will be displayed.
3) AIRTEL
To check and know your mobile phone number on Airtel, Dial *746#
4) GLO
Dial *135*8# on your Glo enabled phone and your number displays on your screen.
It is as simple as that.