macadress

Kei Communication Technology Inc.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:16:AA:00:00:00 /24
Vendor address8-BAN CHUOU KOBE HYOGO JP 650-0024
Country🇯🇵  Japan
RegisteredDec 9, 2005
Block range00:16:AA:00:00:00– 00:16:AA: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

  1. Dec 9, 2005 – Jan 27, 2006 Kei Communication Technology Co.,Ltd. name changed
  2. Jan 27, 2006 – present Kei Communication Technology Inc.

Example addresses in this block

00:16:AA:00:00:00 00:16:AA:7F:FF:FF 00:16:AA:FF:FF:FF

Where this block sits

Previous 00:16:A9:00:00:00 /24 2EI Next 00:16:AB:00:00:00 /24 Dansensor A/S

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

Kei Communication Technology Inc. holds 1 registered blocks in the IEEE registry, ranking #17,550 of 33,421 organizations by block count.