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:FE:5D:80:00:00 /28
Vendor address6F-5, No79, Sec 1, Xintai 5th RD, Xizhi Dist New Taipei City TW 22101
Country🇹🇼 Taiwan
RegisteredAug 19, 2018
Block range0C:FE:5D:80:00:00– 0C:FE:5D:8F: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
0C:FE:5D:70:00:00 /28
Vermes Microdispensing GmbH
Next
0C:FE:5D:90:00:00 /28
Celerway Communication AS
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
CTK Contact Electronics co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #9,490 of 33,427 organizations by block count.