MEDCAPTAIN MEDICAL 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.

PrefixA8:3F:A1:20:00:00 /28

Vendor address12th Floor, Baiwang Research Building, No.5158 Shahe West Road, Xili, Nanshan Shenzhen CN 518055

RegisteredJul 22, 2018

Block rangeA8:3F:A1:20:00:00– A8:3F:A1:2F: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

A8:3F:A1:20:00:00 A8:3F:A1:27:FF:FF A8:3F:A1:2F:FF:FF

Where this block sits

Previous A8:3F:A1:10:00:00 /28 GTDevice LLC Next A8:3F:A1:30:00:00 /28 Guangzhou Tupu Internet Technology Co., Ltd.

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

MEDCAPTAIN MEDICAL TECHNOLOGY CO., LTD. holds 1 registered blocks in the IEEE registry, ranking #19,449 of 33,427 organizations by block count.