LEADTEK BIOMED INC.

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.

Prefix08:3C:03:50:00:00 /28

Vendor address18 F., No. 166, Jian 1st Rd., Zhonghe Dist. New Taipei City TW 235

RegisteredJan 20, 2026

Block range08:3C:03:50:00:00– 08:3C:03:5F: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

08:3C:03:50:00:00 08:3C:03:57:FF:FF 08:3C:03:5F:FF:FF

Where this block sits

Previous 08:3C:03:40:00:00 /28 Beijing New Matrix Information Technology CO., Ltd Next 08:3C:03:60:00:00 /28 Jiaxing UPhoton Optoelectronics Technology Co., Ltd.

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

LEADTEK BIOMED INC. holds 1 registered blocks in the IEEE registry, ranking #18,277 of 33,421 organizations by block count.