SANSHA ELECTRIC MANUFACTURING 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.

PrefixA0:24:90:90:00:00 /28

Vendor address3-1-56, Nishiawaji, Higashiyodogawa-ku Osaka JP 533-0031

RegisteredJun 1, 2026

Block rangeA0:24:90:90:00:00– A0:24:90:9F: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

A0:24:90:90:00:00 A0:24:90:97:FF:FF A0:24:90:9F:FF:FF

Where this block sits

Previous A0:24:90:80:00:00 /28 Elisity, Inc. Next A0:24:90:A0:00:00 /28 Shenzhen Jooan Technology Co., Ltd

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

SANSHA ELECTRIC MANUFACTURING CO., LTD. holds 1 registered blocks in the IEEE registry, ranking #25,163 of 33,421 organizations by block count.