WuHan Glory Road Precision Technology 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.

Prefix30:BB:28:50:00:00 /28

Vendor addressRoom 01, 7th Floor, Unit T4, Building B12, Guanggu Innovation World, No. 88, Guanggu 6th Road, Donghu New Technology Development Zone Wuhan Hubei CN 430073

Country🇨🇳 China

RegisteredAug 15, 2026

Block range30:BB:28:50:00:00– 30:BB:28:5F: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

30:BB:28:50:00:00 30:BB:28:57:FF:FF 30:BB:28:5F:FF:FF

Where this block sits

Previous 30:BB:28:40:00:00 /28 HUIZHOU HENGDU ELECTRONICS CO.,LTD. Next 30:BB:28:60:00:00 /28 Sunwoda Mobility Energy Technology Co., Ltd.

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

WuHan Glory Road Precision Technology Co.,Ltd holds 1 registered blocks in the IEEE registry, ranking #32,504 of 33,427 organizations by block count.