IAB: an Individual Address Block, a /36 covering 4,096 addresses. IEEE's predecessor to MA-S; no longer issued, but existing assignments remain valid.
Prefix00:50:C2:A7:E0:00 /36
Vendor addressSaxon Way Royston Herts GB SG8 6DN
RegisteredMar 15, 2009
Block range00:50:C2:A7:E0:00– 00:50:C2:A7:EF:FF
Address capacity4,096
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 15, 2009 – Aug 14, 2019 Independent Project Engineering Ltd name changed
  2. Aug 14, 2019 – present Densitron Technologies Ltd

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.

Densitron Technologies Ltd holds 2 registered blocks in the IEEE registry, ranking #1,861 of 33,427 organizations by block count.

Other blocks registered to Densitron Technologies Ltd