8C:1F:64:5F:4 Jiangsu Yi Rong Mstar Technology Ltd.
Every MAC address from 8C:1F:64:5F:40:00 to 8C:1F:64:5F:4F:FF belongs to a block the IEEE assigned to Jiangsu Yi Rong Mstar Technology Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 8C:1F:64:5F:4 belongs to
Written 8C:1F:64:5F:4, 8C-1F-64-5F-4 or 8C1F645F4, depending on the system. Look up a full address.
Prefix
8C:1F:64:5F:4/36
Organization
Jiangsu Yi Rong Mstar Technology Ltd.
Registry
MA-S (36 bits)
Addresses
4,096
First address
8C:1F:64:5F:40:00
Last address
8C:1F:64:5F:4F:FF
Address type
Globally unique, unicast
Registered address
Building 1-4, No. 9, Yongfu Road, Dafeng Economic Development Zone, Yancheng City Jiangsu CN 224199
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 Jiangsu Yi Rong Mstar Technology Ltd.
1 more block registered under the same name.