On a BlackBerry, for example, the ESN and PIN (Personal Identification Number) can be found by opening the 'Options' menu and selecting 'Status. Of course, this process will vary depending on the manufacturer and model of your device. EISSN is defined as Electronic International Standard Serial. NOTE: The model number is also called the Part of the product or device. How is Electronic International Standard Serial Number abbreviated EISSN stands for Electronic International Standard Serial Number. Using the handset: On some devices, you may be able to look up the IMEI or ESN number directly on the handset. However, where these numbers are printed depend on the type of product you have.You should be able to find any information you are looking for here.

Depending on your device, your IMEI or ESN number can be found in up to three different places.

If you're looking looking for the IMEI (International Mobile Equipment Indicator) or ESN (Electronic Serial Number) number on your cell phone, you don't need to look far.