Well first off you're going to need to know the ESN, MEID, or IMEI of the mobile device you want to check. The information below should help get you started.
As you see in the illistration to the left... the ESN, MEID, or IMEI of your phone is generally displayed on a white sticker under the phone's battery. The ESN, or MEID will be in one of two formats, DEC or HEX, and is either 8, 11, 14, or 18 characters long, and the IMEI is usually 15 characters long.
Once you have the ESN, MEID, or IMEI of your device, you'll need to select the provider or service you want to check the wireless device against from the drop down menu on the home page, then enter your ESN, MEID, or IMEI in the input box and click "Check ESN".
The status of your ESN check will come back in one of several forms. They range from cleanESN, badESN, and invalidESN. You may see a list of the full definitions HERE.
Lastly, if you feel an ESN you are checking is coming back with invalid, or incorrect response, please feel free to contact the wireless carrier to verify the ESN directly. It is advised to call more than once to check an ESN!
If you need our assistance, please feel free to contact us anytime using our Contact Us form. Please be sure to include your ESN, MEID, or IMEI, and the wireless provider or service your device needs checked against.