MAC Address Lookup

Cisco Systems, Inc C4:0A:CB

C4:0A:CB is a 24-bit MA-L MAC address block registered to Cisco Systems, Inc in US.

Vendor

Cisco Systems, Inc

MA-L · 24-bit
C4:0A:CB

Unicast · Universally administered (U/L bit clear)

Matched prefix
C4:0A:CB
Match
MA-L assignment
Address range
C4:0A:CB:00:00:00 – C4:0A:CB:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
80 West Tasman Drive San Jose CA US 94568
First registered
Nov 17, 2011

Formats

  • Plain hex C40ACB
  • Colon-separated C4:0A:CB
  • Hyphen-separated C4-0A-CB
  • Cisco dot notation C40A.CB

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 Nov 17, 2011
  2. CISCO SYSTEMS, INC. Jan 30, 2013
  3. Cisco Systems Jan 31, 2013
  4. CISCO SYSTEMS, INC. Feb 14, 2013