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

RegisteredDec 1, 2018

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

E4:4C:C7:20:00:00 E4:4C:C7:27:FF:FF E4:4C:C7:2F:FF:FF

Where this block sits

Previous E4:4C:C7:10:00:00 /28 ACS-Solutions GmbH Next E4:4C:C7:30:00:00 /28 JSC "Svyaz Inginiring M"

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

Doowon Electronics & Telecom Co.,Ltd holds 1 registered blocks in the IEEE registry, ranking #10,702 of 33,421 organizations by block count.