Hitachi Information & Communication Engineering, Ltd.

MA-L

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

Prefix00:04:D5:00:00:00 /24

Vendor addressQueen's Tower B21F, 2-3-3, Minatomirai, Nishi-ku, Yokohama, JP 220-6121

RegisteredJan 24, 2001

Block range00:04:D5:00:00:00– 00:04:D5: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

Jan 24, 2001 – Jun 23, 2009 Hitachi Communication Systems, Inc. name changedaddress changed
Jun 23, 2009 – present Hitachi Information & Communication Engineering, Ltd.

Example addresses in this block

00:04:D5:00:00:00 00:04:D5:7F:FF:FF 00:04:D5:FF:FF:FF

Where this block sits

Previous 00:04:D4:00:00:00 /24 Proview Electronics Co., Ltd. Next 00:04:D6:00:00:00 /24 Takagi Industrial Co., Ltd.

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

Hitachi Information & Communication Engineering, Ltd. holds 1 registered blocks in the IEEE registry, ranking #14,933 of 33,427 organizations by block count.