Check your phone’s info using the IMEI number. An IMEI stands for International Mobile Equipment Identity. A unique 15-digit number, it’s like a fingerprint for your phone. IMEI numbers are shared between carriers and manufacturers so that stolen or compromised smartphones can be tracked. Using the IMEI number is is also possible to find the Blacklist status, devices warranty information, iCloud status info, Sold to info as well as the original network provider.