00:25:03 IBM Corp
Every MAC address from 00:25:03:00:00:00 to 00:25:03:FF:FF:FF belongs to a block the IEEE assigned to IBM Corp. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:25:03 belongs to
Written 00:25:03, 00-25-03 or 002503, depending on the system. Look up a full address.
Prefix
00:25:03
Organization
IBM Corp
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:25:03:00:00:00
Last address
00:25:03:FF:FF:FF
Address type
Globally unique, unicast
Registered address
2051 Mission College Blvd Santa Clara CA US 95054