28:F5:37:3 PRIMETECH ENGINEERING CORP.
Every MAC address from 28:F5:37:30:00:00 to 28:F5:37:3F:FF:FF belongs to a block the IEEE assigned to PRIMETECH ENGINEERING CORP.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 28:F5:37:3 belongs to
Written 28:F5:37:3, 28-F5-37-3 or 28F5373, depending on the system. Look up a full address.
Prefix
28:F5:37:3/28
Organization
PRIMETECH ENGINEERING CORP.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
28:F5:37:30:00:00
Last address
28:F5:37:3F:FF:FF
Address type
Globally unique, unicast
Registered address
Koishikawadaikoku Bldg. 3F, 1-3-25 Koishikawa, Bunkyo-ku Tokyo JP 112-0002
Parent block
Inside 28:F5:37
This MA-M block is carved from the 24-bit block 28:F5:37, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.