MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:26:28:00:00:00 /24
Vendor addressRua Marcilio Dias 3005 Pelotas Rio Grande do Sul BR 96020-480
RegisteredMay 10, 2009
Block range00:26:28:00:00:00– 00:26:28: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. May 10, 2009 – Nov 7, 2009 companytec automação e controle ltda name changed
  2. Nov 7, 2009 – Feb 6, 2010 companytec automação e controle ltda name changed
  3. Feb 6, 2010 – Aug 24, 2010 companytec automação e controle ltda name changed
  4. Aug 24, 2010 – Aug 25, 2010 companytec automação e controle ltda name changed
  5. Aug 25, 2010 – Nov 17, 2011 companytec automação e controle ltda name changed
  6. Nov 17, 2011 – Nov 18, 2011 companytec automação e controle ltda name changed
  7. Nov 18, 2011 – Sep 17, 2012 companytec automação e controle ltda name changed
  8. Sep 17, 2012 – Nov 29, 2012 companytec automação e controle ltda name changed
  9. Nov 29, 2012 – Aug 27, 2015 companytec automação e controle ltda. name changedaddress changed
  10. Aug 27, 2015 – present companytec automação e controle ltda.

Example addresses in this block

Where this block sits

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

companytec automação e controle ltda. holds 1 registered blocks in the IEEE registry, ranking #8,881 of 33,421 organizations by block count.