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Old 12 Apr 2019, 08:04 PM   #3
TenFour
Essential Contributor
 
Join Date: Feb 2017
Posts: 486
At least some service providers let you "lock" your SIM by setting a code or password that must be given in order to swap the SIM to another device. Here is what T Mobile says about it: https://www.t-mobile.com/responsibil...y/sim-security

Another option is to use a virtual phone number from providers like Google Voice. Then never give out the real phone number. The virtual number doesn't utilize a SIM.
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