74:25:84:3 alt digital s.r.o.
Every MAC address from 74:25:84:30:00:00 to 74:25:84:3F:FF:FF belongs to a block the IEEE assigned to alt digital s.r.o.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 74:25:84:3 belongs to
Written 74:25:84:3, 74-25-84-3 or 7425843, depending on the system. Look up a full address.
Prefix
74:25:84:3/28
Organization
alt digital s.r.o.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
74:25:84:30:00:00
Last address
74:25:84:3F:FF:FF
Address type
Globally unique, unicast
Registered address
Smolný vrch 410/3 Liberec CZ 46015
Parent block
Inside 74:25:84
This MA-M block is carved from the 24-bit block 74:25:84, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.