MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixD4:20:00:A0:00:00 /28
Vendor addressUnit 1, 8 Theobald St THORNBURY VIC AU 3071
Country🇦🇺 Australia
RegisteredMar 11, 2023
Block rangeD4:20:00:A0:00:00– D4:20:00:AF:FF:FF
Address capacity1,048,576
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
D4:20:00:90:00:00 /28
WEATHEX CO., LTD.
Next
D4:20:00:B0:00:00 /28
Shenzhen Volt IoT technology co.,ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
BirdDog Australia holds 3 registered blocks in the IEEE registry, ranking #942 of 33,421 organizations by block count.
Other blocks registered to BirdDog Australia