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:C2:81:60:00 /36
Vendor address1420 Kristina Way, Suite #102 Chesapeake VA US 23320
Country🇺🇸 United States
RegisteredJul 30, 2008
Block range00:50:C2:81:60:00– 00:50:C2:81:6F: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 – Jun 21, 2024 Intelight Inc. name changedaddress changed
- Jun 21, 2024 – present Q-Free America, Inc.
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.
Q-Free America, Inc. holds 2 registered blocks in the IEEE registry, ranking #2,792 of 33,427 organizations by block count.
Other blocks registered to Q-Free America, Inc.