System Q 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.

Prefix38:B1:9E:B0:00:00 /28

Vendor addressTurnoaks Business Park, Hasland Chesterfield Derbyshire GB S40 2WB

RegisteredOct 30, 2018

Block range38:B1:9E:B0:00:00– 38:B1:9E:BF: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

38:B1:9E:B0:00:00 38:B1:9E:B7:FF:FF 38:B1:9E:BF:FF:FF

Where this block sits

Previous 38:B1:9E:A0:00:00 /28 Aeroespacial Guosheng Technology Co., Ltd Next 38:B1:9E:C0:00:00 /28 Gesellschaft industrieller Technologien

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

System Q Ltd holds 1 registered blocks in the IEEE registry, ranking #28,942 of 33,421 organizations by block count.