MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix6C:DF:FB:90:00:00 /28
Vendor address18F-8, No.118, Ci-Yun Rd., Hsin Chu 30072, Taiwan(R.O.C.) Hsin Chu TW 30072
Country🇹🇼 Taiwan
RegisteredSep 7, 2018
Block range6C:DF:FB:90:00:00– 6C:DF:FB:9F: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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6C:DF:FB:80:00:00 /28
Hardmeier
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6C:DF:FB:A0:00:00 /28
Guilin Zhishen Information TechonlogyCO.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
YongTechs Electric Co. Ltd holds 1 registered blocks in the IEEE registry, ranking #32,970 of 33,427 organizations by block count.