how to know your Sim registration has been correctly ?
now i"m share how to check Sim registration has been correctly
- Grameenphone check verification : Go massage option type reg and send 4949
- Banglalink verification check: Dail *1600*1#
- Robi verification check : Dail *643# and type 1 and send
- Airtel sim verification check:Dail *121*444#
- Teletalk sim verification check: go massage option type Q send 1600
This is process check your sim verification or not

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