macadress

Plexus (Xiamen) Co.,ltd.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:19:72:00:00:00 /24
Vendor addressNo.6 Xiangxing 2 Road Xiamen Fujian CN 361006
Country🇨🇳  China
RegisteredAug 27, 2006
Block range00:19:72:00:00:00– 00:19:72: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. Aug 27, 2006 – Apr 26, 2016 Plexus (Xiamen) Co.,ltd name changedaddress changed
  2. Apr 26, 2016 – present Plexus (Xiamen) Co.,ltd.

Example addresses in this block

00:19:72:00:00:00 00:19:72:7F:FF:FF 00:19:72:FF:FF:FF

Where this block sits

Previous 00:19:71:00:00:00 /24 Guangzhou Unicomp Technology Co.,Ltd Next 00:19:73:00:00:00 /24 Zeugma Systems

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

Plexus (Xiamen) Co.,ltd. holds 1 registered blocks in the IEEE registry, ranking #23,147 of 33,427 organizations by block count.