MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixC4:FF:BC:40:00:00 /28
Vendor address5F., No.16, Lane 15, Sec. 6, Mincyuan E. Rd., Neihu District, TAIPEI TW 114
Country🇹🇼 Taiwan
RegisteredOct 22, 2017
Block rangeC4:FF:BC:40:00:00– C4:FF:BC:4F: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 →
Ownership timeline
- Oct 22, 2017 – Mar 13, 2026 iMageTech CO.,LTD. name changed
- Mar 13, 2026 – present HyperNet CO., LTD
Example addresses in this block
Where this block sits
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C4:FF:BC:30:00:00 /28
SHENZHEN KALIF ELECTRONICS CO.,LTD
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C4:FF:BC:50:00:00 /28
comtime GmbH
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
HyperNet CO., LTD holds 1 registered blocks in the IEEE registry, ranking #15,362 of 33,427 organizations by block count.