44:03:77:1 Atari, Inc.
Every MAC address from 44:03:77:10:00:00 to 44:03:77:1F:FF:FF belongs to a block the IEEE assigned to Atari, Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 44:03:77:1 belongs to
Written 44:03:77:1, 44-03-77-1 or 4403771, depending on the system. Look up a full address.
Prefix
44:03:77:1/28
Organization
Atari, Inc.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
44:03:77:10:00:00
Last address
44:03:77:1F:FF:FF
Address type
Globally unique, unicast
Registered address
286 Madison Ave, 8th floor New York NY US 10017
Parent block
Inside 44:03:77
This MA-M block is carved from the 24-bit block 44:03:77, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.