Shanghai Institute of Applied Physics, Chinese Academy of Sciences

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.

Prefix7C:CB:E2:A0:00:00 /28

Vendor address239 Zhang Heng Road, Pudong New District Shanghai Shanghai CN 201203

RegisteredAug 28, 2016

Block range7C:CB:E2:A0:00:00– 7C:CB:E2:AF: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

7C:CB:E2:A0:00:00 7C:CB:E2:A7:FF:FF 7C:CB:E2:AF:FF:FF

Where this block sits

Previous 7C:CB:E2:90:00:00 /28 Hangzhou Haohaokaiche Technology Co.,Ltd. Next 7C:CB:E2:B0:00:00 /28 Easy Broadband Technology Co., Ltd.

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

Shanghai Institute of Applied Physics, Chinese Academy of Sciences holds 1 registered blocks in the IEEE registry, ranking #25,961 of 33,427 organizations by block count.