MAC Address Lookup

Extreme Networks, Inc. C8:51:FB

C8:51:FB is a 24-bit MA-L MAC address block registered to Extreme Networks, Inc. in US.

Vendor

Extreme Networks, Inc.

MA-L · 24-bit
C8:51:FB

Unicast · Universally administered (U/L bit clear)

Matched prefix
C8:51:FB
Match
MA-L assignment
Address range
C8:51:FB:00:00:00 – C8:51:FB:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
2121 RDU Center Drive Morrisville NC US 27560
First registered
Apr 15, 2023

Formats

  • Plain hex C851FB
  • Colon-separated C8:51:FB
  • Hyphen-separated C8-51-FB
  • Cisco dot notation C851.FB

Prefix lineage

This prefix has changed hands. Dates are when each change was first observed in public registration data (runZero mac-tracker).

  1. Extreme Networks, Inc. Apr 15, 2023
  2. Extreme Networks Headquarters Jul 15, 2023
  3. Extreme Networks, Inc. Jun 26, 2026