RT-Systemtechnik GmbH

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:80:00:00 /28

Vendor addressJacksonring 4 Rheine DE 48429

RegisteredMay 22, 2021

Block range44:A9:2C:80:00:00– 44:A9:2C:8F: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:80:00:00 44:A9:2C:87:FF:FF 44:A9:2C:8F:FF:FF

Where this block sits

Previous 44:A9:2C:70:00:00 /28 Efficient Building Automation Corp. Next 44:A9:2C:90:00:00 /28 China Electronics Corporation Greatwall Shengfeifan information system Co.,ltd. Hu'nan computer R.&D. Center

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

RT-Systemtechnik GmbH holds 1 registered blocks in the IEEE registry, ranking #24,852 of 33,427 organizations by block count.