if I buy a prepaid sim card and activate it at carrier x (carrier x could be att, tracfone, tmobile, verizon, mint mobile, whatever) can someone who doesn't work at carrier x tell the age of this phone number? can they tell I just got it yesterday, vs I've had it for 2 years?
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if I buy a prepaid sim card and activate it at carrier x (carrier x could be att, tracfone, tmobile, verizon, mint mobile, whatever) can someone who doesn't work at carrier x tell the age of this phone number? can they tell I just got it yesterday, vs I've had it for 2 years?
Many prepaid SIM numbers have been owned by other owners in the past, and this is very bad for many services. All of them already have this owner registered in the CNAM database. I use this service for testing: https://calleridtest.com .
Hope this help
can they tell phone number is brand new? 
