Human Systems Integration

MA-S

MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.

Prefix70:B3:D5:08:50:00 /36

Vendor address153 Washington St, 4th Floor Walpole MA US 02170

RegisteredMar 4, 2018

Block range70:B3:D5:08:50:00– 70:B3:D5:08:5F:FF

Address capacity4,096

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

70:B3:D5:08:50:00 70:B3:D5:08:57:FF 70:B3:D5:08:5F:FF

Where this block sits

Previous 70:B3:D5:08:40:00 /36 Rako Controls Ltd Next 70:B3:D5:08:60:00 /36 Husty M.Styczen J.Hupert Sp.J.

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

Human Systems Integration holds 1 registered blocks in the IEEE registry, ranking #15,258 of 33,421 organizations by block count.