MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix48:0B:B2:40:00:00 /28
Vendor addressNo. 90 Wensan, Hangzhou, Zhejiang Hangzhou Zhejiang CN 310012
Country🇨🇳 China
RegisteredJan 14, 2018
Block range48:0B:B2:40:00:00– 48:0B:B2:4F: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
Previous
48:0B:B2:30:00:00 /28
shanghai Rinlink Intelligent Technology Co., Ltd.
Next
48:0B:B2:50:00:00 /28
Solaredge LTD.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Hangzhou Freely Communication Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #14,401 of 33,421 organizations by block count.