74:F8:DB:3 ATX
Every MAC address from 74:F8:DB:30:00:00 to 74:F8:DB:3F:FF:FF belongs to a block the IEEE assigned to ATX. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 74:F8:DB:3 belongs to
Written 74:F8:DB:3, 74-F8-DB-3 or 74F8DB3, depending on the system. Look up a full address.
Prefix
74:F8:DB:3/28
Organization
ATX
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
74:F8:DB:30:00:00
Last address
74:F8:DB:3F:FF:FF
Address type
Globally unique, unicast
Registered address
5850 Hellyer Ave San Jose CA US 95138
Parent block
Inside 74:F8:DB
This MA-M block is carved from the 24-bit block 74:F8:DB, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.