90:A9:F7:4 LAB-EL ELEKTRONIKA LABORATORYJNA
Every MAC address from 90:A9:F7:40:00:00 to 90:A9:F7:4F:FF:FF belongs to a block the IEEE assigned to LAB-EL ELEKTRONIKA LABORATORYJNA. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 90:A9:F7:4 belongs to
Written 90:A9:F7:4, 90-A9-F7-4 or 90A9F74, depending on the system. Look up a full address.
Prefix
90:A9:F7:4/28
Organization
LAB-EL ELEKTRONIKA LABORATORYJNA
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
90:A9:F7:40:00:00
Last address
90:A9:F7:4F:FF:FF
Address type
Globally unique, unicast
Registered address
HERBACIANA 9 REGULY PL 05-816
Parent block
Inside 90:A9:F7
This MA-M block is carved from the 24-bit block 90:A9:F7, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.