00:21:CF The Crypto Group
Every MAC address from 00:21:CF:00:00:00 to 00:21:CF:FF:FF:FF belongs to a block the IEEE assigned to The Crypto Group. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:21:CF belongs to
Written 00:21:CF, 00-21-CF or 0021CF, depending on the system. Look up a full address.
Prefix
00:21:CF
Organization
The Crypto Group
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:21:CF:00:00:00
Last address
00:21:CF:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Zugerstrasse 42 Steinhausen Zug CH 6312