Hunan Quanying Electronics 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.

Prefix54:91:AF:80:00:00 /28

Vendor addressoom 401-46, 4th Floor, Building 5, Changsha Zhongdian Software Park Phase 1, No. 39 Jianshan Road, High tech Development Zone, Changsha City, Hunan Province, China Changsha Hunan CN 410205

Country🇨🇳 China

RegisteredJun 1, 2023

Block range54:91:AF:80:00:00– 54:91:AF: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

54:91:AF:80:00:00 54:91:AF:87:FF:FF 54:91:AF:8F:FF:FF

Where this block sits

Previous 54:91:AF:70:00:00 /28 Hong Telecom Equipment Service Limited Next 54:91:AF:90:00:00 /28 Asiga Pty Ltd

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

Hunan Quanying Electronics Co. , Ltd. holds 1 registered blocks in the IEEE registry, ranking #15,289 of 33,427 organizations by block count.