B4:CF:DB Shenzhen Jiuzhou Electric Co.,LTD
Every MAC address from B4:CF:DB:00:00:00 to B4:CF:DB:FF:FF:FF belongs to a block the IEEE assigned to Shenzhen Jiuzhou Electric Co.,LTD. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who B4:CF:DB belongs to
Written B4:CF:DB, B4-CF-DB or B4CFDB, depending on the system. Look up a full address.
Prefix
B4:CF:DB
Organization
Shenzhen Jiuzhou Electric Co.,LTD
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
B4:CF:DB:00:00:00
Last address
B4:CF:DB:FF:FF:FF
Address type
Globally unique, unicast
Registered address
6F,Jiuzhou Electric Building,Southern No.12RD.,Hi-Tech Industrial Park,Nanshan District, Shenzhen Guangdong CN 518057
Same organization
Other blocks assigned to Shenzhen Jiuzhou Electric Co.,LTD
1 more block registered under the same name.