Cabletron Systems, Inc.

Cabletron Systems, Inc. holds 5 OUI prefixes in the IEEE registry. Each prefix is the first three octets of a MAC address and covers a block of 16,777,216 addresses, so devices built by Cabletron Systems, Inc. draw from a pool of about 83,886,080 possible MAC addresses in total.

Registered address: 35 INDUSTRIAL WAY - BLDG. #36 ROCHESTER NH US 03867

All 5 prefixes

• 00:00:1D00:00:1D:00:00:00 – 00:00:1D:FF:FF:FF
• 00:20:D400:20:D4:00:00:00 – 00:20:D4:FF:FF:FF
• 00:60:BB00:60:BB:00:00:00 – 00:60:BB:FF:FF:FF
• 00:E0:3A00:E0:3A:00:00:00 – 00:E0:3A:FF:FF:FF
• 00:E0:6300:E0:63:00:00:00 – 00:E0:63:FF:FF:FF

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