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:D0:00:00 /28
Vendor address39355 California St., Suite 303 Fremont null US 94538
Country🇺🇸 United States
RegisteredJul 10, 2016
Block rangeAC:64:DD:D0:00:00– AC:64:DD:DF: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
AC:64:DD:C0:00:00 /28
Beijing Hamigua Technology Co., Ltd.
Next
AC:64:DD:E0:00:00 /28
DIGIBIRD TECHNOLOGY CO., LTD.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
HMicro Inc holds 3 registered blocks in the IEEE registry, ranking #1,089 of 33,427 organizations by block count.
Other blocks registered to HMicro Inc