A locked iPhone only works with the carrier that sold it. This check reads Apple's activation record for the IMEI and says whether the SIM lock is on or off — the one thing to know before you put your own SIM in.
A real check, straight from our own servers.
A carrier restriction burned into the iPhone's activation record so it only accepts that carrier's SIM cards until the carrier unlocks it.
This check says whether it is locked. The free iPhone carrier check names the network.
Yes, by the carrier when their conditions are met, or through an unlock service. Resellers can order unlocks through the catalogue.
Yes, a few checks a day for every visitor. Resellers get unlimited checks with an account.
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.