SystemGear Co., Ltd.

MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix00:03:CB:00:00:00 /24

Vendor address1-9-14 Edobori Osaka Nishi-ku JP 550-0002

RegisteredNov 9, 2000

Block range00:03:CB:00:00:00– 00:03:CB:FF:FF:FF

Address capacity16,777,216

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 →

Ownership timeline

Nov 9, 2000 – Aug 23, 2019 Nippon Systems Development Co., Ltd. name changedaddress changed
Aug 23, 2019 – present SystemGear Co., Ltd.

Example addresses in this block

00:03:CB:00:00:00 00:03:CB:7F:FF:FF 00:03:CB:FF:FF:FF

Where this block sits

Previous 00:03:CA:00:00:00 /24 Temposonics, LLC Next 00:03:CC:00:00:00 /24 Momentum Computer, Inc.

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

SystemGear Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #28,959 of 33,427 organizations by block count.