Neos Ventures Limited

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:A1:80:00:00 /28

Vendor address47 Bermondsey Street London GB SE1 3XT

RegisteredJul 15, 2018

Block rangeA8:3F:A1:80:00:00– A8:3F:A1:8F: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:A1:80:00:00 A8:3F:A1:87:FF:FF A8:3F:A1:8F:FF:FF

Where this block sits

Previous A8:3F:A1:70:00:00 /28 Plejd AB Next A8:3F:A1:90:00:00 /28 Shenzhen ITLONG Intelligent Technology Co.,Ltd

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

Neos Ventures Limited holds 1 registered blocks in the IEEE registry, ranking #20,862 of 33,427 organizations by block count.