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:10:00:00 /28
Vendor address14 F, 1351, Zhong-Zheng Rd. Taoyuan TW 330
Country🇹🇼 Taiwan
RegisteredAug 20, 2017
Block rangeEC:9F:0D:10:00:00– EC:9F:0D:1F: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:00:00:00 /28
Hesai Photonics Technology Co., Ltd
Next
EC:9F:0D:20:00:00 /28
DRB Systems
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Simula Technology Inc. holds 1 registered blocks in the IEEE registry, ranking #27,487 of 33,427 organizations by block count.