Systec Intelligent Building Technology (Tianjin) Co.,Ltd.

MA-M

MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.

Prefix28:2C:02:90:00:00 /28

Vendor addressRoom 1312, Building D, HI-Tech. Information Square, No.8 Huatian Rd., Huayuan HI-Tech. Park Tianjin CN 300384

Country🇨🇳 China

RegisteredOct 22, 2017

Block range28:2C:02:90:00:00– 28:2C:02:9F:FF:FF

Address capacity1,048,576

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

28:2C:02:90:00:00 28:2C:02:97:FF:FF 28:2C:02:9F:FF:FF

Where this block sits

Previous 28:2C:02:80:00:00 /28 Shenzhen Neoway Technology Co.,Ltd. Next 28:2C:02:A0:00:00 /28 Tokin Limited

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

Systec Intelligent Building Technology (Tianjin) Co.,Ltd. holds 1 registered blocks in the IEEE registry, ranking #28,930 of 33,427 organizations by block count.