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:47:80:A0:00:00 /28
Vendor address10F.-7, No.18, Ln. 609, Sec. 5, Chongxin Rd., Sanchong Dist. New Taipei City TW 241
Country🇹🇼 Taiwan
RegisteredFeb 4, 2026
Block range6C:47:80:A0:00:00– 6C:47:80:AF: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
6C:47:80:70:00:00 /28
ONICON
Next
6C:47:80:B0:00:00 /28
CARDIO SISTEMAS COMERCIAL E INDUSTRIAL LTDA
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Prolink Surveillance Technology Co.Ltd holds 1 registered blocks in the IEEE registry, ranking #23,554 of 33,427 organizations by block count.