macadress

Exéns Development Oy

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1D:CB:00:00:00 /24
Vendor addressKauppakatu 36 Kajaani Kainuu FI 87100
Country🇫🇮  Finland
RegisteredSep 25, 2007
Block range00:1D:CB:00:00:00– 00:1D:CB: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. Sep 25, 2007 – Nov 7, 2009 Exéns Development Oy name changed
  2. Nov 7, 2009 РFeb 6, 2010 Ex̩ns Development Oy name changed
  3. Feb 6, 2010 – Aug 24, 2010 Exéns Development Oy name changed
  4. Aug 24, 2010 – Aug 25, 2010 Exéns Development Oy name changed
  5. Aug 25, 2010 – Nov 17, 2011 Exéns Development Oy name changed
  6. Nov 17, 2011 – Nov 18, 2011 Exéns Development Oy name changed
  7. Nov 18, 2011 РSep 17, 2012 Ex̩ns Development Oy name changed
  8. Sep 17, 2012 – Nov 29, 2012 Exéns Development Oy name changed
  9. Nov 29, 2012 РAug 27, 2015 Ex̩ns Development Oy name changedaddress changed
  10. Aug 27, 2015 – present Exéns Development Oy

Example addresses in this block

00:1D:CB:00:00:00 00:1D:CB:7F:FF:FF 00:1D:CB:FF:FF:FF

Where this block sits

Previous 00:1D:CA:00:00:00 /24 PAV Electronics Limited Next 00:1D:CC:00:00:00 /24 Ayon Cyber Security, Inc

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

Exéns Development Oy holds 1 registered blocks in the IEEE registry, ranking #12,317 of 33,421 organizations by block count.