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.
Prefix40:D8:55:13:E0:00 /36
Vendor addressD-1412 gwangmyeong techno park gwangmyeong-si gyeonggi-do KR 423-795
Country🇰🇷 South Korea
RegisteredJul 21, 2013
Block range40:D8:55:13:E0:00– 40:D8:55:13:EF: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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40:D8:55:13:D0:00 /36
Perm Scientific-Industrial Instrument Making Company JSC
Next
40:D8:55:13:F0:00 /36
Zhejiang Wellsun Electric Meter Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
hanatech holds 1 registered blocks in the IEEE registry, ranking #14,356 of 33,427 organizations by block count.