FACIT K.K.

MA-L

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

Prefix00:10:CB:00:00:00 /24

Vendor addressHIMEI NIHOMBASHI BLDG. 3F CHUO-KU, TOKYO 103 JP

RegisteredApr 22, 1998

Block range00:10:CB:00:00:00– 00:10: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 →

Example addresses in this block

00:10:CB:00:00:00 00:10:CB:7F:FF:FF 00:10:CB:FF:FF:FF

Where this block sits

Previous 00:10:CA:00:00:00 /24 Telco Systems, Inc. Next 00:10:CC:00:00:00 /24 CLP COMPUTER LOGISTIK PLANUNG GmbH

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

FACIT K.K. holds 1 registered blocks in the IEEE registry, ranking #12,461 of 33,427 organizations by block count.