Doowon Electronics & Telecom Co.,Ltd
MA-M
MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixE4:4C:C7:20:00:00 /28
Vendor addressIT 301-408, Ssangyong 3Cha, Bucheon Technopark, 397, Seokcheon-ro, Ojeong-gu Bucheon-si Gyeonggi-do KR 14449
Country🇰🇷 South Korea
Block rangeE4:4C:C7:20:00:00– E4:4C:C7:2F: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