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

RegisteredJul 24, 2026

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

8C:1F:64:1A:40:00 8C:1F:64:1A:47:FF 8C:1F:64:1A:4F:FF

Where this block sits

Previous 8C:1F:64:1A:00:00 /36 Engage Technologies Next 8C:1F:64:1A:50:00 /36 DIALTRONICS SYSTEMS PVT LTD

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

Beijing Qinghong Chuangzhi Technology Co.,Ltd. holds 1 registered blocks in the IEEE registry, ranking #6,674 of 33,427 organizations by block count.