00:0C:21 Faculty of Science and Technology, Keio University
Every MAC address from 00:0C:21:00:00:00 to 00:0C:21:FF:FF:FF belongs to a block the IEEE assigned to Faculty of Science and Technology, Keio University. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:0C:21 belongs to
Written 00:0C:21, 00-0C-21 or 000C21, depending on the system. Look up a full address.
Prefix
00:0C:21
Organization
Faculty of Science and Technology, Keio University
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:0C:21:00:00:00
Last address
00:0C:21:FF:FF:FF
Address type
Globally unique, unicast
Registered address
3-14-1 Hiyoshi, Kohoku-ku Yokohama Kanagawa JP 223-8522