90:15:64:4 Kontakt Micro-Location Sp z o.o.
Every MAC address from 90:15:64:40:00:00 to 90:15:64:4F:FF:FF belongs to a block the IEEE assigned to Kontakt Micro-Location Sp z o.o.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 90:15:64:4 belongs to
Written 90:15:64:4, 90-15-64-4 or 9015644, depending on the system. Look up a full address.
Prefix
90:15:64:4/28
Organization
Kontakt Micro-Location Sp z o.o.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
90:15:64:40:00:00
Last address
90:15:64:4F:FF:FF
Address type
Globally unique, unicast
Registered address
Stoczniowcow 3 Krakow PL 30-709
Parent block
Inside 90:15:64
This MA-M block is carved from the 24-bit block 90:15:64, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to Kontakt Micro-Location Sp z o.o.
2 more blocks registered under the same name.