YSTen 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.

Prefix80:77:86:80:00:00 /28

Vendor addressRoom 101, Building D (Cygnus), Wuxi Software Park, No. 111 Linghu Avenue, Xinwu District, Wuxi City Jiangsu Province CN 214028

Country🇨🇳 China

RegisteredJan 9, 2026

Block range80:77:86:80:00:00– 80:77:86:8F: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

80:77:86:80:00:00 80:77:86:87:FF:FF 80:77:86:8F:FF:FF

Where this block sits

Previous 80:77:86:70:00:00 /28 Partronics eBoards Pvt Ltd Next 80:77:86:90:00:00 /28 SMW-Autoblok Spannsysteme

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

YSTen Technology Co.,Ltd holds 5 registered blocks in the IEEE registry, ranking #666 of 33,427 organizations by block count.