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:F5:30:00 /36
Vendor address1F,NO.9, INDUSTRIAL EAST 9th RD., HSINCHU TAIWAN TW 30075
RegisteredMar 18, 2012
Block range00:50:C2:F5:30:00– 00:50:C2:F5:3F: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

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

BAYCOM OPTO-ELECTRONICS TECHNOLGY CO., LTD. holds 2 registered blocks in the IEEE registry, ranking #1,595 of 33,427 organizations by block count.

Other blocks registered to BAYCOM OPTO-ELECTRONICS TECHNOLGY CO., LTD.