Question: how do you check what your phone number is?
Answer: Enter a Special Code. Firstly, if you have your SIM in your phone then there is a simple way to find out your telephone number. ... 
Call a Friend. ... 
Call Customer Services. ... 
Check Your Phone Settings. ... 
Look in Your Numbers. ... 
Check Your SIM Card Packaging. ... 
Visit a Store. ... 
Find a Bill or Contract.