MAC Address Lookup

Cisco Systems, Inc F4:0F:1B

F4:0F:1B is a 24-bit MA-L MAC address block registered to Cisco Systems, Inc in US.

Vendor

Cisco Systems, Inc

MA-L · 24-bit
F4:0F:1B

Unicast · Universally administered (U/L bit clear)

Matched prefix
F4:0F:1B
Match
MA-L assignment
Address range
F4:0F:1B:00:00:00 – F4:0F:1B:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
170 West Tasman Drive San Jose CA US 95134
First registered
Apr 23, 2014

Formats

  • Plain hex F40F1B
  • Colon-separated F4:0F:1B
  • Hyphen-separated F4-0F-1B
  • Cisco dot notation F40F.1B

Prefix lineage

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

  1. Cisco Apr 23, 2014
  2. Cisco Systems, Inc Sep 1, 2015