MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix84:B3:86:10:00:00 /28
Vendor address24F, Block C, Maoye Center, No. 28, North Section of Tianfu Avenue, High tech Zone, Chengdu, Sichuan Chengdu Sichuan CN 621050
Country🇨🇳 China
RegisteredOct 14, 2022
Block range84:B3:86:10:00:00– 84:B3:86:1F: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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84:B3:86:00:00:00 /28
Nan Jing WZX Technology Limited
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84:B3:86:20:00:00 /28
Annapurna labs
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
SICHUAN HUAKUN ZHENYU INTELLIGENT TECHNOLOGY CO.,LTD holds 2 registered blocks in the IEEE registry, ranking #3,058 of 33,421 organizations by block count.