MAC Address Lookup

Cisco Systems, Inc C4:AA:43

C4:AA:43 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:AA:43

Unicast · Universally administered (U/L bit clear)

Matched prefix
C4:AA:43
Match
MA-L assignment
Address range
C4:AA:43:00:00:00 – C4:AA:43:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
80 West Tasman Drive San Jose CA US 94568
First registered
May 23, 2026

Formats

  • Plain hex C4AA43
  • Colon-separated C4:AA:43
  • Hyphen-separated C4-AA-43
  • Cisco dot notation C4AA.43