Shenzhen BIO I/E 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:D0:00:00 /28

Vendor addressHuafan Industrial Park,Building #12, Henggang JianLong Village Industrial Zone, Longgang District Shenzhen GuangDong province CN 518115

Country🇨🇳 China

RegisteredJul 15, 2018

Block rangeA8:3F:A1:D0:00:00– A8:3F:A1:DF: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:D0:00:00 A8:3F:A1:D7:FF:FF A8:3F:A1:DF:FF:FF

Where this block sits

Previous A8:3F:A1:C0:00:00 /28 Laonz Co.,Ltd Next A8:3F:A1:E0:00:00 /28 Guangzhou Navigateworx Technologies Co., Limited

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

Shenzhen BIO I/E Co.,Ltd holds 1 registered blocks in the IEEE registry, ranking #26,252 of 33,427 organizations by block count.