Check if a device is reported Lost/Stolen to a carrier. Full blacklist history is provided, which includes both blacklist insertions and removals. For each insertion or removal record, you will be given the issuing company, country and date.
Case 1: Blacklist records sourced from GSMA, which is the world's largest registry. Your device can still be reported lost/stolen on private databases like imeipro.info
Case 2: If there's no blacklist history, you will simply receive the result "CLEAN”.