B4:CF:DB:00:00:00 to B4:CF:DB:FF:FF:FF
Shenzhen Jiuzhou Electric Co.,LTD
Inspect this prefixRegistered address
6F,Jiuzhou Electric Building,Southern No.12RD.,Hi-Tech Industrial Park,Nanshan District,
Shenzhen Guangdong 518057
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- B4:CF:DB /24
- Addresses in block
- 16,777,216
- Decimal range
- 198,804,825,440,256 to 198,804,842,217,471
- Address type
- Unicast, universally administered
What this block covers
The classic 24 bit OUI. The registrant owns the first three octets and can assign every one of the remaining 16.7 million addresses.
Any MAC address between B4:CF:DB:00:00:00 and B4:CF:DB:FF:FF:FF belongs to this assignment. The registrant chooses the remaining 24 bits, so the same prefix can appear on very different products from the same company.