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:C2:9F:80:00 /36
Vendor address9155 Sterling St Unit 100 Irving TX US 75063
Country🇺🇸 United States
RegisteredDec 7, 2008
Block range00:50:C2:9F:80:00– 00:50:C2:9F:8F: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
- Dec 7, 2008 – Oct 2, 2020 Austco Communication Systems Pty Ltd name changedaddress changedcountry changed
- Oct 2, 2020 – present Austco Marketing & Service (USA) ltd.
Example addresses in this block
Where this block sits
Previous
00:50:C2:9F:70:00 /36
Dave Jones Design
Next
00:50:C2:9F:90:00 /36
ABB Transmission and Distribution Automation Equipment (Xiamen) Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Austco Marketing & Service (USA) ltd. holds 6 registered blocks in the IEEE registry, ranking #472 of 33,421 organizations by block count.
Other blocks registered to Austco Marketing & Service (USA) ltd.