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:A1:0E:00:00:00 /28
Vendor address119, Mapo-daero (Gongdeok-dong), Mapo-gu Seoul KR 04144
Country🇰🇷 South Korea
RegisteredMar 12, 2022
Block rangeC4:A1:0E:00:00:00– C4:A1:0E:0F: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
- Mar 12, 2022 – Jun 24, 2022 HYOSUNG HEAVY INDUSTRIES name changed
- Jun 24, 2022 – present HYOSUNG Heavy Industries Corporation
Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
HYOSUNG Heavy Industries Corporation holds 3 registered blocks in the IEEE registry, ranking #1,101 of 33,427 organizations by block count.
Other blocks registered to HYOSUNG Heavy Industries Corporation