macadress

GSI Helmholtzzentrum für Schwerionenforschung GmbH

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:26:7B:00:00:00 /24
Vendor addressPlanckstraße 1 Darmstadt Hessen DE 64291
Country🇩🇪  Germany
RegisteredJun 14, 2009
Block range00:26:7B:00:00:00– 00:26:7B: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. Jun 14, 2009 – Nov 7, 2009 GSI Helmholtzzentrum für Schwerionenforschung GmbH name changedaddress changed
  2. Nov 7, 2009 – Feb 6, 2010 GSI Helmholtzzentrum für Schwerionenforschung GmbH name changedaddress changed
  3. Feb 6, 2010 – Aug 24, 2010 GSI Helmholtzzentrum für Schwerionenforschung GmbH name changedaddress changed
  4. Aug 24, 2010 – Aug 25, 2010 GSI Helmholtzzentrum für Schwerionenforschung GmbH name changedaddress changed
  5. Aug 25, 2010 – Nov 17, 2011 GSI Helmholtzzentrum für Schwerionenforschung GmbH name changedaddress changed
  6. Nov 17, 2011 – Sep 17, 2012 GSI Helmholtzzentrum für Schwerionenforschung GmbH name changedaddress changed
  7. Sep 17, 2012 – Nov 29, 2012 GSI Helmholtzzentrum für Schwerionenforschung GmbH name changedaddress changed
  8. Nov 29, 2012 – Aug 27, 2015 GSI Helmholtzzentrum für Schwerionenforschung GmbH name changedaddress changed
  9. Aug 27, 2015 – present GSI Helmholtzzentrum für Schwerionenforschung GmbH

Example addresses in this block

00:26:7B:00:00:00 00:26:7B:7F:FF:FF 00:26:7B:FF:FF:FF

Where this block sits

Previous 00:26:7A:00:00:00 /24 wuhan hongxin telecommunication technologies co.,ltd Next 00:26:7C:00:00:00 /24 Metz-Werke GmbH & Co KG

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

GSI Helmholtzzentrum für Schwerionenforschung GmbH holds 1 registered blocks in the IEEE registry, ranking #14,040 of 33,421 organizations by block count.