MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1F:42:00:00:00 /24
Vendor address80 Abercrombie Street Chippendale NSW AU 2008
Country🇦🇺 Australia
RegisteredDec 31, 2007
Block range00:1F:42:00:00:00– 00:1F:42:FF:FF:FF
Address capacity16,777,216
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
- Dec 31, 2007 – Mar 14, 2013 Etherstack Pty Ltd name changedaddress changed
- Mar 14, 2013 – present Etherstack plc
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.
Etherstack plc holds 1 registered blocks in the IEEE registry, ranking #12,165 of 33,421 organizations by block count.