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:C2:8B:70:00 /36
Vendor addressOracle Campus Linlithgow West Lothian GB EH49 7LR
Country🇬🇧 United Kingdom
RegisteredJul 30, 2008
Block range00:50:C2:8B:70:00– 00:50:C2:8B:7F: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
- Jul 30, 2008 – Aug 1, 2021 Calnex Solutions Limited name changedaddress changed
- Aug 1, 2021 – present Calnex Solutions plc
Example addresses in this block
Where this block sits
Previous
00:50:C2:8B:60:00 /36
Shadrinskiy Telefonny Zavod
Next
00:50:C2:8B:80:00 /36
DSS Networks, Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Calnex Solutions plc holds 2 registered blocks in the IEEE registry, ranking #1,679 of 33,421 organizations by block count.
Other blocks registered to Calnex Solutions plc