Beijing Qinghong Chuangzhi Technology Co.,Ltd.
MA-S
MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:1A:40:00 /36
Vendor addressRoom 313-5652, Floor 3, Shanshui Building, No. 3 Gulou East Street, Miyun District, Beijing (Cluster Registered) Beijing CN 101599
Country🇨🇳 China
Block range8C:1F:64:1A:40:00– 8C:1F:64:1A:4F:FF
Address capacity4,096
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 →
Example addresses in this block