Pakistan
How to Check How Many SIMs Are Registered on Your CNIC
Send your 13-digit CNIC number, without dashes, by SMS to 668. You get a free reply listing how many SIMs each network has registered against it.
Pta
Guides and explainers tagged pta, newest first.
Pakistan
PTA Approved or Not? How to Check and Register a Phone's IMEI
Dial *#06# to see your phone's IMEI, then send it by SMS to 8484. The reply tells you whether the phone is PTA compliant, needs registering, or is blocked.