How to check your number phone in your phone, Smart, Cellcard, Metfone

How to check your number phone in your phone? actually all the people they always forgot the number phone especially when they just by the new phone and some people they always think that this problem is easy, but they must be known that it is the big problem and very important for us, if some one forgot them number and then when some body ask you about your phone number, while you forget or you do not know, So how can you do? So this post i will so you how to check your phone number :

Please Click this link to see and know how to check your sim number?
- Smart
 https://www.youtube.com/watch?v=PMYb7J6yw9U
-Metfone
 https://www.youtube.com/watch?v=Sk9r_AS5OMU
-Cellcard
https://www.youtube.com/watch?v=GonGpnzgJt8