A0:24:90:4 Nefence Inc.
Every MAC address from A0:24:90:40:00:00 to A0:24:90:4F:FF:FF belongs to a block the IEEE assigned to Nefence Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who A0:24:90:4 belongs to
Written A0:24:90:4, A0-24-90-4 or A024904, depending on the system. Look up a full address.
Prefix
A0:24:90:4/28
Organization
Nefence Inc.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
A0:24:90:40:00:00
Last address
A0:24:90:4F:FF:FF
Address type
Globally unique, unicast
Registered address
37, Gwacheon-daero 7na-gil Gwacheon-si Gyeonggi-do KR 13840
Parent block
Inside A0:24:90
This MA-M block is carved from the 24-bit block A0:24:90, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.