MAC Address Lookup

 MAC

RESEARCH MACHINES

MAC prefix: 00:00:7B

Vendor name: RESEARCH MACHINES

MAC range: 00:00:7B:00:00:00 - 00:00:7B:FF:FF:FF

Block Size: 16777215 (16.77 M)

Address:

P.O. BOX 75
ENGLAND
GB.

Type MA-L

Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

Initial registration: 09 November 2000

Last updated: 17 November 2015

Country GB map