8C:1F:64:C0:9 S.E.I. CO.,LTD.
Every MAC address from 8C:1F:64:C0:90:00 to 8C:1F:64:C0:9F:FF belongs to a block the IEEE assigned to S.E.I. CO.,LTD.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 8C:1F:64:C0:9 belongs to
Written 8C:1F:64:C0:9, 8C-1F-64-C0-9 or 8C1F64C09, depending on the system. Look up a full address.
Prefix
8C:1F:64:C0:9/36
Organization
S.E.I. CO.,LTD.
Registry
MA-S (36 bits)
Addresses
4,096
First address
8C:1F:64:C0:90:00
Last address
8C:1F:64:C0:9F:FF
Address type
Globally unique, unicast
Registered address
59 Nirayama Tada Izunokuni Shizuoka JP 4102133
Parent block
Inside 8C:1F:64
This MA-S block is carved from the 24-bit block 8C:1F:64, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to S.E.I. CO.,LTD.
3 more blocks registered under the same name.