CRRC Nangjing Puzhen Haitai Brake Equipment 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.

Prefix78:13:05:60:00:00 /28

Vendor addressNo.10 Xinglong Road Pukou Economic Development District Nanjing Jiangsu CN 211800

RegisteredApr 23, 2021

Block range78:13:05:60:00:00– 78:13:05:6F: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

78:13:05:60:00:00 78:13:05:67:FF:FF 78:13:05:6F:FF:FF

Where this block sits

Previous 78:13:05:50:00:00 /28 ATS-CONVERS,LLC Next 78:13:05:70:00:00 /28 E-Stone Electronics Co., Ltd

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

CRRC Nangjing Puzhen Haitai Brake Equipment Co., LTD holds 1 registered blocks in the IEEE registry, ranking #9,425 of 33,427 organizations by block count.