00:21:A8 Telephonics Corporation
Every MAC address from 00:21:A8:00:00:00 to 00:21:A8:FF:FF:FF belongs to a block the IEEE assigned to Telephonics Corporation. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:21:A8 belongs to
Written 00:21:A8, 00-21-A8 or 0021A8, depending on the system. Look up a full address.
Prefix
00:21:A8
Organization
Telephonics Corporation
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:21:A8:00:00:00
Last address
00:21:A8:FF:FF:FF
Address type
Globally unique, unicast
Registered address
815 Broad Hollow Road Farmingdale New York US 11790