Carriers around the world report lost, stolen and unpaid devices to the GSMA blacklist, and a blacklisted phone will not connect to most networks. Before you buy a used phone, run its IMEI here — the answer comes from the same database the carriers use.
A real check, straight from our own servers.
A shared database of IMEIs that carriers have reported lost, stolen or unpaid. Networks that subscribe to it refuse those devices.
Dial *#06# on any phone, or look under Settings › About. iPhones also print it on the SIM tray or the back of the box.
Only the carrier that reported it can remove it, usually when the bill is settled or the owner recovers it. Do not pay for a device that is blacklisted.
Yes. The blacklist is by IMEI, not by brand, so iPhone, Samsung, Pixel, Xiaomi and the rest all give an answer.
Resellers plug our catalogue into their panel or website — DHRU Fusion out of the box, plain JSON for your own code — and sell every check under their own name, at wholesale prices.