MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixB4:4B:D6:60:00:00 /28
Vendor address4F, 1326#, West YanAn road, Shanghai, P.R.China ShangHai ShangHai CN 200052
Country🇨🇳 China
RegisteredApr 8, 2018
Block rangeB4:4B:D6:60:00:00– B4:4B:D6:6F: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
B4:4B:D6:50:00:00 /28
ShenZhen Comstar Technology Company
Next
B4:4B:D6:70:00:00 /28
Taizhou convergence Information technology Co.,LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Perspicace Intellegince Technology holds 1 registered blocks in the IEEE registry, ranking #22,844 of 33,427 organizations by block count.