MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix0C:5C:B5:70:00:00 /28
Vendor address8/F., Green 18, HK Science Park Sha Tin Hong Kong HK 0000
CountryðŸ‡ðŸ‡° Hong Kong
RegisteredJan 28, 2021
Block range0C:5C:B5:70:00:00– 0C:5C:B5:7F: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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0C:5C:B5:60:00:00 /28
S2C limited
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0C:5C:B5:80:00:00 /28
Shanghai Kanghai Information System CO.,LTD.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Energybox Limited holds 2 registered blocks in the IEEE registry, ranking #1,967 of 33,421 organizations by block count.
Other blocks registered to Energybox Limited