| Electronic Serial Number |
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Information AboutElectronic Serial Number |
| CATEGORIES ABOUT ELECTRONIC SERIAL NUMBER | |
| wireless networking | |
| identifiers | |
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ESN is 32- Bit long. In the old format, the first 8-bit is used to represent the manufacturer. Code 0x80 was reserved and now it is used to represent pseudo ESN (pESN). The last 24-bit are used as serial number with that manufacturer. As ESN is running out, new serial numbers named Mobile Equipment ID (MEID) are created. MEID is 56-bit long, which is the same length as IMEI. MEID is created to be compatible with IMEI. The first 8-bit of MEID is regional code. Numbers above 0xA0 will be assigned to CDMA phones. 0x99 is reserved for Multimode phones (supports GSM and CDMA). |
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