Devices with MAC addresses that start with 00-80-E9 were manufactured by Madge Ltd.

Device Manufacturer
Madge Ltd.
Manufacturer Location
Madge House
Maindenhead Berkshire SL6 2HP
Estimated Devices using 00-80-E9
16,256,250
Estimated Total Devices From Mfg
65,025,000
Related MAC Addresses
00-00-C1, 00-02-81, 00-00-6F