GUANGZHOU UNIPOWER COMPUTER 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.

Prefix50:A0:30:C0:00:00 /28

Vendor addressRoom 3203, No. 233 Tianhe North Road, Tianhe District, Guangzhou CN 510000

RegisteredOct 27, 2021

Block range50:A0:30:C0:00:00– 50:A0:30:CF: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

50:A0:30:C0:00:00 50:A0:30:C7:FF:FF 50:A0:30:CF:FF:FF

Where this block sits

Previous 50:A0:30:B0:00:00 /28 SHANGHAI ZXELINK Co.,Ltd Next 50:A0:30:D0:00:00 /28 SERNET (SUZHOU) TECHNOLOGIES CORPORATION

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

GUANGZHOU UNIPOWER COMPUTER CO.,LTD holds 1 registered blocks in the IEEE registry, ranking #14,208 of 33,427 organizations by block count.