macadress

Panasonic Electric Works Co., Ltd.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:50:40:00:00:00 /24
Vendor addressTsu-Factory, 1668, Fujikata Tsu-shi Mie-ken JP 514-8555
Country🇯🇵  Japan
RegisteredSep 8, 2000
Block range00:50:40:00:00:00– 00:50:40: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 – Apr 8, 2006 EMWARE, INC. name changedaddress changed
  2. Apr 8, 2006 – Aug 27, 2006 Panasonic Electric Works Laboratory of America, Inc./SLC Lab name changedaddress changedcountry changed
  3. Aug 27, 2006 – Jun 23, 2009 Matsushita Electric Works, Ltd. name changedaddress changed
  4. Jun 23, 2009 – present Panasonic Electric Works Co., Ltd.

Example addresses in this block

00:50:40:00:00:00 00:50:40:7F:FF:FF 00:50:40:FF:FF:FF

Where this block sits

Previous 00:50:3F:00:00:00 /24 ANCHOR GAMES Next 00:50:41:00:00:00 /24 Coretronic Corporation

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

Panasonic Electric Works Co., Ltd. holds 2 registered blocks in the IEEE registry, ranking #2,705 of 33,427 organizations by block count.

Other blocks registered to Panasonic Electric Works Co., Ltd.

00:C0:8F:00:00:00 /24 MA-L