Devices with MAC addresses that start with 00-20-D4 were manufactured by Cabletron Systems, Inc.

Device Manufacturer
Cabletron Systems, Inc.

Manufacturer Location
35 INDUSTRIAL WAY
ROHESTER NH 03866-5005

Estimated Devices using 00-20-D4
16,256,250

Estimated Total Devices From Mfg
81,281,250

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