MAC Address Lookup

Private 1C:21:D1:C

1C:21:D1:C is a 28-bit MA-M MAC address block registered to Private.

Vendor

Private

MA-M · 28-bit Private registration
1C:21:D1:C

Unicast · Universally administered (U/L bit clear)

Matched prefix
1C:21:D1:C
Match
MA-M assignment
Address range
1C:21:D1:C0:00:00 – 1C:21:D1:CF:FF:FF
Addresses in block
1,048,576
First registered
Oct 16, 2015

Formats

  • Plain hex 1C21D1C
  • Colon-separated 1C:21:D1:C
  • Hyphen-separated 1C-21-D1-C
  • Cisco dot notation 1C21.D1C