macadress

TDK-Lambda Corporation

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:50:65:00:00:00 /24
Vendor address36-1 Kasuminosato Ami-Machi Inashiki-Gun Ibaraki, JP 300-0396
Country🇯🇵  Japan
RegisteredSep 8, 2000
Block range00:50:65:00:00:00– 00:50:65: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. Sep 8, 2000 – Jun 23, 2009 DENSEI-LAMBAD Co., Ltd. name changedaddress changed
  2. Jun 23, 2009 – present TDK-Lambda Corporation

Example addresses in this block

00:50:65:00:00:00 00:50:65:7F:FF:FF 00:50:65:FF:FF:FF

Where this block sits

Previous 00:50:64:00:00:00 /24 CAE ELECTRONICS Next 00:50:66:00:00:00 /24 AtecoM GmbH advanced telecomunication modules

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

TDK-Lambda Corporation holds 1 registered blocks in the IEEE registry, ranking #29,268 of 33,427 organizations by block count.