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:E6:00:00 /36
Vendor address1600 Aza-Shironoshita Asahi Shin Asahi-cho Takashima, Shiga JP 520-1501
Country🇯🇵 Japan
RegisteredAug 7, 2011
Block range00:50:C2:E6:00:00– 00:50:C2:E6:0F: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
- Aug 7, 2011 – Jan 22, 2021 TAIYO SEIKI CO.,LTD. name changed
- Jan 22, 2021 – Mar 17, 2021 Horizon Co., Ltd name changed
- Mar 17, 2021 – present HORIZON.INC
Example addresses in this block
Where this block sits
Previous
00:50:C2:E5:F0:00 /36
Pantec Engineering AG
Next
00:50:C2:E6:10:00 /36
Detech Electronics ApS
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
HORIZON.INC holds 6 registered blocks in the IEEE registry, ranking #502 of 33,427 organizations by block count.
Other blocks registered to HORIZON.INC