MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixD0:5F:64:10:00:00 /28
Vendor address4F, Block A, B, Building 2, NO.321, Jinpeng Street, Xihu District Hangzhou Zhejiang CN 310030
Country🇨🇳 China
RegisteredMay 9, 2019
Block rangeD0:5F:64:10:00:00– D0:5F:64:1F: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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D0:5F:64:00:00:00 /28
Decathlon SA
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SHANGHAI ZHONGMI COMMUNICATION TECHNOLOGY CO.,LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Hangzhou ToupTek Photonics Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #14,471 of 33,427 organizations by block count.