MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix78:5E:E8:C0:00:00 /28
Vendor addressRM 1003 10/F TOWER 1 LIPPO CENTER 89 QUEENSWAY ADMIRALTY HK HONG KONG HONG KONG CN 999077
Country🇨🇳 China
RegisteredJun 27, 2021
Block range78:5E:E8:C0:00:00– 78:5E:E8:CF: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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78:5E:E8:B0:00:00 /28
Lantern Engineering (Pty) Ltd
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78:5E:E8:D0:00:00 /28
Tachyon Networks
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
FINETOOLING TECHNOLOGY(HONG KONG)CO.,LIMITED holds 1 registered blocks in the IEEE registry, ranking #12,699 of 33,427 organizations by block count.