00:30:23 COGENT COMPUTER SYSTEMS, INC.
Every MAC address from 00:30:23:00:00:00 to 00:30:23:FF:FF:FF belongs to a block the IEEE assigned to COGENT COMPUTER SYSTEMS, INC.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:30:23 belongs to
Written 00:30:23, 00-30-23 or 003023, depending on the system. Look up a full address.
Prefix
00:30:23
Organization
COGENT COMPUTER SYSTEMS, INC.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:30:23:00:00:00
Last address
00:30:23:FF:FF:FF
Address type
Globally unique, unicast
Registered address
10 RIVER ROAD - STE. #205 UXBRIDGE MA US 01569