MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixAC:64:DD:40:00:00 /28
Vendor address29, Gonghang-daero 61-gil, Gangseo-gu Seoul KR 07563
Country🇰🇷 South Korea
RegisteredJul 10, 2016
Block rangeAC:64:DD:40:00:00– AC:64:DD:4F: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
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AC:64:DD:30:00:00 /28
infypower Co., Ltd
Next
AC:64:DD:50:00:00 /28
SHANGHAI ZTE TECHNOLOGIES CO.,LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
8Cups holds 2 registered blocks in the IEEE registry, ranking #1,426 of 33,421 organizations by block count.
Other blocks registered to 8Cups