00:1C:91 Gefen LLC
Every MAC address from 00:1C:91:00:00:00 to 00:1C:91:FF:FF:FF belongs to a block the IEEE assigned to Gefen LLC. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:1C:91 belongs to
Written 00:1C:91, 00-1C-91 or 001C91, depending on the system. Look up a full address.
Prefix
00:1C:91
Organization
Gefen LLC
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:1C:91:00:00:00
Last address
00:1C:91:FF:FF:FF
Address type
Globally unique, unicast
Registered address
5919 Sea Otter Place Carlsbad CA US 92010