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:C2:99:30:00 /36
Vendor address101-511 DIGITAL EMPIRE 2 SUWON-SI KYUNGGI-DO, KR 443-390
Country🇰🇷 South Korea
RegisteredOct 8, 2008
Block range00:50:C2:99:30:00– 00:50:C2:99:3F: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
Previous
00:50:C2:99:20:00 /36
IDT Sound Processing Corporation
Next
00:50:C2:99:40:00 /36
Xafax Nederland bv
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
UNETCONVERGENCE CO., LTD holds 2 registered blocks in the IEEE registry, ranking #3,321 of 33,427 organizations by block count.