MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:9C:B0:00 /36
Vendor addressRoom 402 Building 13 No.518 XinZhuan Road Caohejing Hi-tech Park,Xinqiao Town?SongJiang District,ShangHai Shanghai Shanghai CN 201612
Country🇨🇳 China
RegisteredDec 10, 2022
Block range8C:1F:64:9C:B0:00– 8C:1F:64:9C:BF:FF
Address capacity4,096
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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8C:1F:64:9C:A0:00 /36
EDC Acoustics
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8C:1F:64:9C:D0:00 /36
JiangYu Innovative Medical Technology
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shanghai Sizhong Information Technology Co., Ltd holds 1 registered blocks in the IEEE registry, ranking #26,042 of 33,427 organizations by block count.