macadress

DEVI - Danfoss A/S

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:19:09:00:00:00 /24
Vendor addressUlvehavevej 61 Vejle DK 7100
Country🇩🇰  Denmark
RegisteredJul 18, 2006
Block range00:19:09:00:00:00– 00:19:09: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. Jul 18, 2006 – Feb 14, 2013 Devi A/S name changed
  2. Feb 14, 2013 – present DEVI - Danfoss A/S

Example addresses in this block

00:19:09:00:00:00 00:19:09:7F:FF:FF 00:19:09:FF:FF:FF

Where this block sits

Previous 00:19:08:00:00:00 /24 Duaxes Corporation Next 00:19:0A:00:00:00 /24 HASWARE INC.

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

DEVI - Danfoss A/S holds 1 registered blocks in the IEEE registry, ranking #10,204 of 33,427 organizations by block count.