Fujian Ruihe 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.

Prefix58:AD:08:30:00:00 /28

Vendor addressNo. 3, Building 6, 3rd Floor, Military Housing Administration Building, 528 Xihong Road, Gulou District, Fuzhou City Fuzhou Fujian CN 350000

Country🇨🇳 China

RegisteredDec 11, 2025

Block range58:AD:08:30:00:00– 58:AD:08:3F: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

58:AD:08:30:00:00 58:AD:08:37:FF:FF 58:AD:08:3F:FF:FF

Where this block sits

Previous 58:AD:08:20:00:00 /28 Beijing ShiYan Technology Co., Ltd Next 58:AD:08:40:00:00 /28 Shenzhen Yumutek co.,ltd

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

Fujian Ruihe Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #13,131 of 33,427 organizations by block count.