macadress

Åmic AB

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1B:A1:00:00:00 /24
Vendor addressUppsala science park Uppsala SE 75183
Country🇸🇪  Sweden
RegisteredMar 1, 2007
Block range00:1B:A1:00:00:00– 00:1B:A1: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. Mar 1, 2007 – Nov 7, 2009 Åmic AB name changedaddress changed
  2. Nov 7, 2009 – Feb 6, 2010 Åmic AB name changedaddress changed
  3. Feb 6, 2010 – Aug 24, 2010 Åmic AB name changedaddress changed
  4. Aug 24, 2010 – Aug 25, 2010 Åmic AB name changedaddress changed
  5. Aug 25, 2010 – Nov 17, 2011 Åmic AB name changedaddress changed
  6. Nov 17, 2011 – Nov 18, 2011 Åmic AB name changed
  7. Nov 18, 2011 – Sep 17, 2012 Ã…mic AB name changedaddress changed
  8. Sep 17, 2012 – Nov 29, 2012 Ã…mic AB name changedaddress changed
  9. Nov 29, 2012 – Aug 27, 2015 Åmic AB name changedaddress changed
  10. Aug 27, 2015 – present Åmic AB

Example addresses in this block

00:1B:A1:00:00:00 00:1B:A1:7F:FF:FF 00:1B:A1:FF:FF:FF

Where this block sits

Previous 00:1B:A0:00:00:00 /24 Awox Next 00:1B:A2:00:00:00 /24 IDS Imaging Development Systems GmbH

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

Åmic AB holds 1 registered blocks in the IEEE registry, ranking #19,743 of 33,427 organizations by block count.