9MOBILE, AIRTEL), GLO, HOW-TO-CHECK-YOU-PHONE-NUMBER (MTN
how to check you phone number (MTN,9mobile,glo,airtel)
Having multiple sim card phone serve as a compelled to the using of
one sim phone,

Because it difficult to keep your phone num
ber off head,or keep track
Of it because it more than one,some phone also use three sim.

For example you are filling a form online and you need your phone
number to complete the form, without you knowing your number I advice
you to( maxi) your phone and take this code am going to give according to you
network type.

It also occur finding difficulties to give your number out all code are here
There is no help in customer care to ask,because not all people understand
Then, it just better take your phone inputs the code(free to dial) silently and get done.
Read the cod here
http://www.yabablog.com/2017/12/how-to-check-you-phone-number.html?m=0