China Electronics Corporation Greatwall Shengfeifan information system Co.,ltd. Hu'nan computer R.&D. Center

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.

Prefix44:A9:2C:90:00:00 /28

Vendor addressChina Electronics Software Park,Yuelu District,Changsha City,Hunan Province Changsha CN 410013

RegisteredMay 18, 2021

Block range44:A9:2C:90:00:00– 44:A9:2C: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

44:A9:2C:90:00:00 44:A9:2C:97:FF:FF 44:A9:2C:9F:FF:FF

Where this block sits

Previous 44:A9:2C:80:00:00 /28 RT-Systemtechnik GmbH Next 44:A9:2C:A0:00:00 /28 Digiport OU

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

China Electronics Corporation Greatwall Shengfeifan information system Co.,ltd. Hu'nan computer R.&D. Center holds 1 registered blocks in the IEEE registry, ranking #8,316 of 33,427 organizations by block count.