MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix88:3C:C5:50:00:00 /28
Vendor address4F, Building (5), No. 8, Hangyi Road, Fengxian District, Shanghai Shanghai CN 201499
Country🇨🇳 China
RegisteredJun 4, 2022
Block range88:3C:C5:50:00:00– 88:3C:C5:5F: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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88:3C:C5:40:00:00 /28
Swabian Instruments GmbH
Next
88:3C:C5:60:00:00 /28
mfJebsen Electronics Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shanghai Ucan Automation Equipment Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,067 of 33,427 organizations by block count.