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:D8:55:04:00:00 /36
Vendor addressL5-E-7B Enterprise 4 Bukit Jalil Kuala Lumpur MY 57000
Country🇲🇾 Malaysia
RegisteredNov 25, 2012
Block range40:D8:55:04:00:00– 40:D8:55:04:0F: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 →
Example addresses in this block
Where this block sits
Previous
40:D8:55:03:F0:00 /36
UniSVR Global Information Technology Corp.
Next
40:D8:55:04:10:00 /36
T.Q.M. Itaca Technology s.r.l.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
GHL Systems Berhad holds 4 registered blocks in the IEEE registry, ranking #729 of 33,421 organizations by block count.
Other blocks registered to GHL Systems Berhad