MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixA0:3E:6B:70:00:00 /28
Vendor address3rd Floor , No.4 Aviation Industry Technology Park Beijing Beijing CN 101111
Country🇨🇳 China
RegisteredOct 16, 2015
Block rangeA0:3E:6B:70:00:00– A0:3E:6B:7F: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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A0:3E:6B:60:00:00 /28
Wuhan Rui Ying Tong Network Technology Co., Ltd(China)
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A0:3E:6B:80:00:00 /28
718th Research Institute of CSIC
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
SinoGrid Software Systems Inc. holds 1 registered blocks in the IEEE registry, ranking #27,511 of 33,421 organizations by block count.