MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix78:72:64:20:00:00 /28
Vendor address830 National dr ste 140 Sacramento CA US 95834
Country🇺🇸 United States
RegisteredSep 2, 2021
Block range78:72:64:20:00:00– 78:72:64:2F: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
78:72:64:10:00:00 /28
Zhengzhou Reform Intelligent Device Co., Ltd
Next
78:72:64:30:00:00 /28
Guangdong Hongqin Telecom Technology Co.,Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
BZBGEAR holds 1 registered blocks in the IEEE registry, ranking #7,591 of 33,427 organizations by block count.