00:1B:7C A & R Cambridge
Every MAC address from 00:1B:7C:00:00:00 to 00:1B:7C:FF:FF:FF belongs to a block the IEEE assigned to A & R Cambridge. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:1B:7C belongs to
Written 00:1B:7C, 00-1B-7C or 001B7C, depending on the system. Look up a full address.
Prefix
00:1B:7C
Organization
A & R Cambridge
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:1B:7C:00:00:00
Last address
00:1B:7C:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Pembroke Avenue Cambridge CAMBS GB CB25 9QR