Techyauld 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.

PrefixAC:EF:92:A0:00:00 /28

Vendor addressZhongguancun Software Park, No.8 West Dongbeiwang Road, Haidian District Beijing CN 010

RegisteredOct 23, 2024

Block rangeAC:EF:92:A0:00:00– AC:EF:92:AF: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

AC:EF:92:A0:00:00 AC:EF:92:A7:FF:FF AC:EF:92:AF:FF:FF

Where this block sits

Previous AC:EF:92:90:00:00 /28 DKK North America Next AC:EF:92:B0:00:00 /28 Hunan ciwei intelligent Technology Co., LTD

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

Techyauld Co.,Ltd holds 1 registered blocks in the IEEE registry, ranking #29,415 of 33,427 organizations by block count.