macadress

Schneider Electric Japan Holdings Ltd.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:01:23:00:00:00 /24
Vendor addressSchneider Electric Osaka Building 4-4-9 Kitahama Chuo-ku, Osaka JP 541-0041
Country🇯🇵  Japan
RegisteredSep 8, 2000
Block range00:01:23:00:00:00– 00:01:23: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 – Sep 14, 2017 DIGITAL ELECTRONICS CORP. name changedaddress changed
  2. Sep 14, 2017 – present Schneider Electric Japan Holdings Ltd.

Example addresses in this block

00:01:23:00:00:00 00:01:23:7F:FF:FF 00:01:23:FF:FF:FF

Where this block sits

Previous 00:01:22:00:00:00 /24 Trend Communications, Ltd. Next 00:01:24:00:00:00 /24 Acer Incorporated

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

Schneider Electric Japan Holdings Ltd. holds 1 registered blocks in the IEEE registry, ranking #25,340 of 33,421 organizations by block count.