20:B3:7F:3 QT medical inc
Every MAC address from 20:B3:7F:30:00:00 to 20:B3:7F:3F:FF:FF belongs to a block the IEEE assigned to QT medical inc. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 20:B3:7F:3 belongs to
Written 20:B3:7F:3, 20-B3-7F-3 or 20B37F3, depending on the system. Look up a full address.
Prefix
20:B3:7F:3/28
Organization
QT medical inc
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
20:B3:7F:30:00:00
Last address
20:B3:7F:3F:FF:FF
Address type
Globally unique, unicast
Registered address
1370 Valley Vista Dr Ste 266 Diamond Bar CA US 91765
Parent block
Inside 20:B3:7F
This MA-M block is carved from the 24-bit block 20:B3:7F, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.