00:21:AC Infrared Integrated Systems Ltd
Every MAC address from 00:21:AC:00:00:00 to 00:21:AC:FF:FF:FF belongs to a block the IEEE assigned to Infrared Integrated Systems Ltd. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:21:AC belongs to
Written 00:21:AC, 00-21-AC or 0021AC, depending on the system. Look up a full address.
Prefix
00:21:AC
Organization
Infrared Integrated Systems Ltd
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:21:AC:00:00:00
Last address
00:21:AC:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Park Circle, Tithe Barn Way Northampton Northants GB NN4 9BG