Devices with MAC addresses that start with 00-00-81 were manufactured by Bay Networks

Device Manufacturer
Bay Networks
Manufacturer Location
PO Box 58185
Santa Clara CA 95052-8185
Estimated Devices using 00-00-81
16,256,250
Estimated Total Devices From Mfg
48,768,750
Related MAC Addresses
00-E0-7B, 00-00-A2