00:21:B0 Tyco Telecommunications
Every MAC address from 00:21:B0:00:00:00 to 00:21:B0:FF:FF:FF belongs to a block the IEEE assigned to Tyco Telecommunications. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:21:B0 belongs to
Written 00:21:B0, 00-21-B0 or 0021B0, depending on the system. Look up a full address.
Prefix
00:21:B0
Organization
Tyco Telecommunications
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:21:B0:00:00:00
Last address
00:21:B0:FF:FF:FF
Address type
Globally unique, unicast
Registered address
1011 Pawtucket Blvd Lowell Massachusetts US 01853