MAC Address Lookup

Cisco Systems, Inc F4:AC:C1

F4:AC:C1 is a 24-bit MA-L MAC address block registered to Cisco Systems, Inc in US.

Vendor

Cisco Systems, Inc

MA-L · 24-bit
F4:AC:C1

Unicast · Universally administered (U/L bit clear)

Matched prefix
F4:AC:C1
Match
MA-L assignment
Address range
F4:AC:C1:00:00:00 – F4:AC:C1:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
80 West Tasman Drive San Jose CA US 94568
First registered
Aug 27, 2009

Formats

  • Plain hex F4ACC1
  • Colon-separated F4:AC:C1
  • Hyphen-separated F4-AC-C1
  • Cisco dot notation F4AC.C1

Prefix lineage

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

  1. Cisco Systems Aug 27, 2009
  2. CISCO SYSTEMS, INC. Jan 30, 2013
  3. Cisco Systems Jan 31, 2013
  4. CISCO SYSTEMS, INC. Feb 14, 2013