IMEIer is a single-page application that can be used to check the details and specifications of any mobile device or phone with an IMEI number. It returns the following output:

• BLOCKLIST status
• Manufacturer
• Make
• Model
• Serial number
• Carrier
• Intended Carrier
• Memory
• Color
• SIM lock
• FMIP (Apple only)
• Country of Origin (COO)
• ATT Status, T-Mobile Status, Verizon Status
• IMEI history

API courtesy of PrologMobile: https://www.prologmobile.com/