MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixF8:EF:B1:00:00:00 /24
Vendor addressRoom 809, Building B, No. 567 Yueming Road, Xixing Street, Hangzhou Binjiang Distric CN 310000
Country🇨🇳 China
RegisteredMay 17, 2025
Block rangeF8:EF:B1:00:00:00– F8:EF:B1: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
- May 17, 2025 – Sep 11, 2025 Hangzhou Zhongxinhui lntelligent Technology Co.,Ltd. name changed
- Sep 11, 2025 – present Hangzhou Zhongxinghui Intelligent Technology Co., Ltd.
Example addresses in this block
Where this block sits
Hangzhou Zhongxinghui Intelligent Technology Co., Ltd. holds 2 registered blocks in the IEEE registry, ranking #2,163 of 33,427 organizations by block count.
Other blocks registered to Hangzhou Zhongxinghui Intelligent Technology Co., Ltd.