00:21:03 GHI Electronics, LLC
Every MAC address from 00:21:03:00:00:00 to 00:21:03:FF:FF:FF belongs to a block the IEEE assigned to GHI Electronics, LLC. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:21:03 belongs to
Written 00:21:03, 00-21-03 or 002103, depending on the system. Look up a full address.
Prefix
00:21:03
Organization
GHI Electronics, LLC
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:21:03:00:00:00
Last address
00:21:03:FF:FF:FF
Address type
Globally unique, unicast
Registered address
35555 Garfield Rd. Clinton Township MI US 48035