MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix0C:73:EB:40:00:00 /28
Vendor addressHANEULMAEUL-RO GYEONGGI-DO GOYANG-SI,ILSANDONG-GU KR 410315
Country🇰🇷 South Korea
RegisteredJan 21, 2018
Block range0C:73:EB:40:00:00– 0C:73:EB: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 →
Example addresses in this block
Where this block sits
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0C:73:EB:30:00:00 /28
Tiinlab Acoustic Technology (Shenzhen) Co., Ltd.
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0C:73:EB:50:00:00 /28
Husty M.Styczen J.Hupert Sp.J.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
U-PASS.CO.,LTD holds 1 registered blocks in the IEEE registry, ranking #30,752 of 33,427 organizations by block count.