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:A7:B1:50:00:00 /28
Vendor addressRoom 101, No. 353, Section Liaobu, Shida Road, Liaobu Town Dongguan Guangdong CN 523000
Country🇨🇳 China
RegisteredAug 9, 2024
Block rangeEC:A7:B1:50:00:00– EC:A7:B1:5F: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:A7:B1:40:00:00 /28
Sichuan Ruiting Zhihui Technology Co., Ltd
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EC:A7:B1:60:00:00 /28
Digital Audio Labs
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
CHICONY POWER TECHNOLOGY (DONGGUAN) CO,. LTD. holds 1 registered blocks in the IEEE registry, ranking #8,308 of 33,427 organizations by block count.