OUI Lookup
00001d
Cabletron Systems, Inc.
Manufacturer Information
- OUI Prefix
- 00001d
- Manufacturer
- Cabletron Systems, Inc.
- Address
- 35 INDUSTRIAL WAY ROCHESTER NH US 03867
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 5
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 00001D
The OUI prefix 00001D is assigned to Cabletron Systems, Inc., based in 35 INDUSTRIAL WAY ROCHESTER NH US 03867 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to Cabletron Systems, Inc..