macadress

NEC Platforms, Ltd.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1B:8B:00:00:00 /24
Vendor address800 Shimomata Kakegawa Shizuoka JP 436-8501
Country🇯🇵  Japan
RegisteredMar 1, 2007
Block range00:1B:8B:00:00:00– 00:1B:8B: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. Mar 1, 2007 – Dec 23, 2010 NEC AccessTechnica,Ltd. name changed
  2. Dec 23, 2010 – Jul 9, 2014 NEC AccessTechnica, Ltd. name changed
  3. Jul 9, 2014 – present NEC Platforms, Ltd.

Example addresses in this block

00:1B:8B:00:00:00 00:1B:8B:7F:FF:FF 00:1B:8B:FF:FF:FF

Where this block sits

Previous 00:1B:8A:00:00:00 /24 2M Electronic A/S Next 00:1B:8C:00:00:00 /24 JMicron Technology Corp.

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

NEC Platforms, Ltd. holds 16 registered blocks in the IEEE registry, ranking #206 of 33,427 organizations by block count.

Other blocks registered to NEC Platforms, Ltd.

00:0D:02:00:00:00 /24 MA-L 00:3A:9D:00:00:00 /24 MA-L 08:10:86:00:00:00 /24 MA-L 10:66:82:00:00:00 /24 MA-L 1C:7C:98:00:00:00 /24 MA-L 1C:B1:7F:00:00:00 /24 MA-L 34:38:39:00:00:00 /24 MA-L 54:9B:49:00:00:00 /24 MA-L 6C:E4:DA:00:00:00 /24 MA-L 80:22:A7:00:00:00 /24 MA-L 98:F1:99:00:00:00 /24 MA-L A4:12:42:00:00:00 /24 MA-L