00:00:7B RESEARCH MACHINES
Every MAC address from 00:00:7B:00:00:00 to 00:00:7B:FF:FF:FF belongs to a block the IEEE assigned to RESEARCH MACHINES. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:00:7B belongs to
Written 00:00:7B, 00-00-7B or 00007B, depending on the system. Look up a full address.
Prefix
00:00:7B
Organization
RESEARCH MACHINES
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:00:7B:00:00:00
Last address
00:00:7B:FF:FF:FF
Address type
Globally unique, unicast
Registered address
P.O. BOX 75 GB ENGLAND