00:23:EF Zuend Systemtechnik AG
Every MAC address from 00:23:EF:00:00:00 to 00:23:EF:FF:FF:FF belongs to a block the IEEE assigned to Zuend Systemtechnik AG. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:23:EF belongs to
Written 00:23:EF, 00-23-EF or 0023EF, depending on the system. Look up a full address.
Prefix
00:23:EF
Organization
Zuend Systemtechnik AG
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:23:EF:00:00:00
Last address
00:23:EF:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Industriestrasse 8 Altstaetten SG CH 9450