38:3A:21:D Colooc AB
Every MAC address from 38:3A:21:D0:00:00 to 38:3A:21:DF:FF:FF belongs to a block the IEEE assigned to Colooc AB. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 38:3A:21:D belongs to
Written 38:3A:21:D, 38-3A-21-D or 383A21D, depending on the system. Look up a full address.
Prefix
38:3A:21:D/28
Organization
Colooc AB
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
38:3A:21:D0:00:00
Last address
38:3A:21:DF:FF:FF
Address type
Globally unique, unicast
Registered address
Nåsvägen 9 Bromma Sverige SE 16775
Parent block
Inside 38:3A:21
This MA-M block is carved from the 24-bit block 38:3A:21, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.