8C:1F:64:3F:9 YU YAN SYSTEM TECHNOLOGY CO., LTD.
Every MAC address from 8C:1F:64:3F:90:00 to 8C:1F:64:3F:9F:FF belongs to a block the IEEE assigned to YU YAN SYSTEM TECHNOLOGY CO., LTD.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 8C:1F:64:3F:9 belongs to
Written 8C:1F:64:3F:9, 8C-1F-64-3F-9 or 8C1F643F9, depending on the system. Look up a full address.
Prefix
8C:1F:64:3F:9/36
Organization
YU YAN SYSTEM TECHNOLOGY CO., LTD.
Registry
MA-S (36 bits)
Addresses
4,096
First address
8C:1F:64:3F:90:00
Last address
8C:1F:64:3F:9F:FF
Address type
Globally unique, unicast
Registered address
No. 195, Yong'an St., Xinzhuang Dist. New Taipei City TW 242017
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.