18:20:4C Kummler+Matter AG
Every MAC address from 18:20:4C:00:00:00 to 18:20:4C:FF:FF:FF belongs to a block the IEEE assigned to Kummler+Matter AG. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 18:20:4C belongs to
Written 18:20:4C, 18-20-4C or 18204C, depending on the system. Look up a full address.
Prefix
18:20:4C
Organization
Kummler+Matter AG
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
18:20:4C:00:00:00
Last address
18:20:4C:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Hohlstrasse 176 Zürich CH 8004