MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixEC:9F:0D:80:00:00 /28
Vendor addressF4,Block B, Lotus Commercial Building,Lianhua Street 333#,XiHu District HANGZHOU ZHEJIANG CN 310012
Country🇨🇳 China
RegisteredAug 6, 2017
Block rangeEC:9F:0D:80:00:00– EC:9F:0D:8F: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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EC:9F:0D:70:00:00 /28
Bei jing Lian Shan times Techonology Co.Ltd
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EC:9F:0D:90:00:00 /28
FCI
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Zhejiang HEJU Communication Technology Co., Ltd holds 1 registered blocks in the IEEE registry, ranking #33,215 of 33,427 organizations by block count.