MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixCC:39:53:D0:00:00 /28
Vendor addressRoom 405 ,BuildingB, No. 18 Science Avenue, Guangzhou Science City, Huangpu District, China Guangzhou Guangdong CN 510700
Country🇨🇳 China
RegisteredJul 10, 2026
Block rangeCC:39:53:D0:00:00– CC:39:53:DF: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.
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Example addresses in this block
Where this block sits
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CC:39:53:C0:00:00 /28
BROADBAND NET INC
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CC:39:53:E0:00:00 /28
Ningbo Xiaojiang IoT Technology Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Guang zhou Xradio Technology Co., Ltd holds 4 registered blocks in the IEEE registry, ranking #737 of 33,427 organizations by block count.
Other blocks registered to Guang zhou Xradio Technology Co., Ltd