Devices with MAC addresses that start with 00-00-1D were manufactured by Cabletron Systems, Inc.

Device ManufacturerCabletron Systems, Inc.
35 INDUSTRIAL WAY
ROCHESTER NH 03867
Estimated Devices with 00-00-1D16256250
Estimated Total Devices From Mfg81281250
Other MAC Addresses00-E0-63, 00-20-D4, 00-60-BB, 00-E0-3A
Address Examples