MAC Address Lookup

Cisco Systems, Inc D0:57:4C

D0:57:4C is a 24-bit MA-L MAC address block registered to Cisco Systems, Inc in US.

Vendor

Cisco Systems, Inc

MA-L · 24-bit
D0:57:4C

Unicast · Universally administered (U/L bit clear)

Matched prefix
D0:57:4C
Match
MA-L assignment
Address range
D0:57:4C:00:00:00 – D0:57:4C:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
80 West Tasman Drive San Jose CA US 94568
First registered
Jun 2, 2010

Formats

  • Plain hex D0574C
  • Colon-separated D0:57:4C
  • Hyphen-separated D0-57-4C
  • Cisco dot notation D057.4C

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 Jun 2, 2010
  2. CISCO SYSTEMS, INC. Jan 30, 2013
  3. Cisco Systems Jan 31, 2013
  4. CISCO SYSTEMS, INC. Feb 14, 2013