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:C2:43:90:00 /36
Vendor address2355 St. Laurent BLVD Ottawa Ontario CA K1G 6C3
Country🇨🇦 Canada
RegisteredJul 30, 2008
Block range00:50:C2:43:90:00– 00:50:C2:43:9F: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 →
Example addresses in this block
Where this block sits
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00:50:C2:43:80:00 /36
Telecom Protection Technologies Limited
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00:50:C2:43:A0:00 /36
ProDesign GmbH
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Peleton Photonic Systems holds 1 registered blocks in the IEEE registry, ranking #22,773 of 33,427 organizations by block count.