00:20:1B NORTHERN TELECOM/NETWORK
Every MAC address from 00:20:1B:00:00:00 to 00:20:1B:FF:FF:FF belongs to a block the IEEE assigned to NORTHERN TELECOM/NETWORK. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:20:1B belongs to
Written 00:20:1B, 00-20-1B or 00201B, depending on the system. Look up a full address.
Prefix
00:20:1B
Organization
NORTHERN TELECOM/NETWORK
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:20:1B:00:00:00
Last address
00:20:1B:FF:FF:FF
Address type
Globally unique, unicast
Registered address
SYSTEMS CORPORATION CANADA CA K8N 5B7