MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixD4:CF:F9:00:00:00 /24
Vendor address501,Productivity Building A, #5 Hi-Tech Middle 2nd Road Shenzhen Guangdong CN 518057
Country🇨🇳 China
RegisteredJan 29, 2014
Block rangeD4:CF:F9:00:00:00– D4:CF:F9:FF:FF:FF
Address capacity16,777,216
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority
Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.
Curious how a prefix like this turns into a full address? See how MAC addresses are structured →
Ownership timeline
- Jan 29, 2014 – Dec 25, 2019 Shenzhen Sen5 Technology Co., Ltd. name changedaddress changed
- Dec 25, 2019 – present Shenzhen SEI Robotics Co.,Ltd
Example addresses in this block
Where this block sits
Shenzhen SEI Robotics Co.,Ltd holds 4 registered blocks in the IEEE registry, ranking #835 of 33,427 organizations by block count.
Other blocks registered to Shenzhen SEI Robotics Co.,Ltd