HTTPfy

MAC prefix A4:0C:C3

Assigned by the IEEE to Cisco Systems, Inc.

Prefix
A4:0C:C3   A4-0C-C3   A40C.C3
Block type
MA-L (16,777,216 addresses)
Address range
A4:0C:C3:00:00:00 – A4:0C:C3:FF:FF:FF
Organization
Cisco Systems, Inc
Registered address
80 West Tasman Drive, San Jose CA 94568, US
Country
United States (US)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up A4:0C:C3:00:00:00

Cisco Systems, Inc holds 1112 blocks in total: see all. Source: IEEE Registration Authority public listing.