OUI Lookup
000b77
Cogent Systems, Inc.
Manufacturer Information
- OUI Prefix
- 000b77
- Manufacturer
- Cogent Systems, Inc.
- Address
- 209 Fair Oaks Ave. South Pasadena CA US 91030
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 000B77
The OUI prefix 000B77 is assigned to Cogent Systems, Inc., based in 209 Fair Oaks Ave. South Pasadena CA US 91030 . 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 Cogent Systems, Inc..