This service will show if the device was officially refurbished or not. If any not authorized by Apple third party refurbishes device this service will not show correct results. It's for officially refurbished devices only.

RESULTS SAMPLE:

 Model: IPHONE 6S PLUS SPACE GRAY 128GB
IMEI: 35334907XXXXXX
Replaced: NO

IMEI: 356775089XXXXX
Replaced: YES

NOTE: Provided results depend on info available in Apple, Carrier or Source database.