00:1B:91 EFKON AG
Every MAC address from 00:1B:91:00:00:00 to 00:1B:91:FF:FF:FF belongs to a block the IEEE assigned to EFKON AG. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:1B:91 belongs to
Written 00:1B:91, 00-1B-91 or 001B91, depending on the system. Look up a full address.
Prefix
00:1B:91
Organization
EFKON AG
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:1B:91:00:00:00
Last address
00:1B:91:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Dietrich-Keller-Strasse 20 8074 Raaba AT