MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix5C:F8:38:30:00:00 /28
Vendor address206, 2F Guoxin Investment Building, 7 Gaoxin S.Rd, Nanshan Dist, Shenzhen, 518057 Shenzhen CN 518057
Country🇨🇳 China
RegisteredAug 24, 2023
Block range5C:F8:38:30:00:00– 5C:F8:38:3F: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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5C:F8:38:20:00:00 /28
The idiot company
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5C:F8:38:40:00:00 /28
Shanghai Zenchant Electornics Co.,LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shenzhen Tuozhu Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,963 of 33,427 organizations by block count.