54:EF:FE Fullpower Technologies, Inc.
Every MAC address from 54:EF:FE:00:00:00 to 54:EF:FE:FF:FF:FF belongs to a block the IEEE assigned to Fullpower Technologies, Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 54:EF:FE belongs to
Written 54:EF:FE, 54-EF-FE or 54EFFE, depending on the system. Look up a full address.
Prefix
54:EF:FE
Organization
Fullpower Technologies, Inc.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
54:EF:FE:00:00:00
Last address
54:EF:FE:FF:FF:FF
Address type
Globally unique, unicast
Registered address
1200 Pacific Avenue Santa Cruz CA US 95060