MAC Address Lookup

Private 6C:81:66

6C:81:66 is a 24-bit MA-L MAC address block registered to Private.

Vendor

Private

MA-L · 24-bit Private registration
6C:81:66

Unicast · Universally administered (U/L bit clear)

Matched prefix
6C:81:66
Match
MA-L assignment
Address range
6C:81:66:00:00:00 – 6C:81:66:FF:FF:FF
Addresses in block
16,777,216
First registered
Dec 15, 2025

Formats

  • Plain hex 6C8166
  • Colon-separated 6C:81:66
  • Hyphen-separated 6C-81-66
  • Cisco dot notation 6C81.66