Ask HN: atm cash-out antifraud - how to locate country of the phone in roaming?
I am developing anti fraud system for atm cash-outs outside of home country. I would like to make real time match of the region of atm cash out with the region of mobile roaming of the card owner.
I know that there're services to locate phones region that support api request for free or for small payment per request. Would appreciate references.
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