80:3A:59 AT&T
Every MAC address from 80:3A:59:00:00:00 to 80:3A:59:FF:FF:FF belongs to a block the IEEE assigned to AT&T. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 80:3A:59 belongs to
Written 80:3A:59, 80-3A-59 or 803A59, depending on the system. Look up a full address.
Prefix
80:3A:59
Organization
AT&T
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
80:3A:59:00:00:00
Last address
80:3A:59:FF:FF:FF
Address type
Globally unique, unicast
Registered address
1025 Lenox Park Blvd Atlanta GA US 30319
Same organization
Other blocks assigned to AT&T
5 more blocks registered under the same name.