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:E8:60:00:00 /28
Vendor addressROOM 601 ROOM 701,BLD.2,NO.2,SCIENCE AND TECHNOLOGY 9 RD,SONGSHAN LAKE HI-TECH ZONE Dongguan Guangdong CN 523808
Country🇨🇳 China
RegisteredJun 29, 2021
Block range78:5E:E8:60:00:00– 78:5E:E8:6F: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
Previous
78:5E:E8:50:00:00 /28
INFOMOBILITY S.R.L.
Next
78:5E:E8:70:00:00 /28
MT B?LG? TEKNOLOJ?LER? VE DI? T?C. A.?.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Guangdong COROS Sports Technology Co., Ltd holds 2 registered blocks in the IEEE registry, ranking #2,123 of 33,421 organizations by block count.