MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixBC:97:40:40:00:00 /28
Vendor address13603, Building 13, No. 2, Nanzhuzhang Hutong, Dongcheng District Beijing Beijing CN 100010
Country🇨🇳 China
RegisteredMar 19, 2019
Block rangeBC:97:40:40:00:00– BC:97:40:4F: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
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BC:97:40:30:00:00 /28
Precision Galaxy Pvt. Ltd
Next
BC:97:40:50:00:00 /28
Shanghai Laisi Information Technology Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Wind Mobility Technology (Beijing) Co., Ltd holds 1 registered blocks in the IEEE registry, ranking #32,260 of 33,427 organizations by block count.