00:04:1B Bridgeworks Ltd.
Every MAC address from 00:04:1B:00:00:00 to 00:04:1B:FF:FF:FF belongs to a block the IEEE assigned to Bridgeworks Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:04:1B belongs to
Written 00:04:1B, 00-04-1B or 00041B, depending on the system. Look up a full address.
Prefix
00:04:1B
Organization
Bridgeworks Ltd.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:04:1B:00:00:00
Last address
00:04:1B:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Unit 1 Aero Centre Ampress Park Lymington Hampshire GB SO41 8QF