MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixDC:44:27:A0:00:00 /28
Vendor addressNo.39,Lane572,Bi Bo Road,Zhangjiang High-Tech Park,Shanghai Shanghai Shanghai CN 201203
Country🇨🇳 China
RegisteredOct 16, 2015
Block rangeDC:44:27:A0:00:00– DC:44:27:AF: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
Previous
DC:44:27:90:00:00 /28
Neusoft Corporation
Next
DC:44:27:B0:00:00 /28
Nautilus Infotech CO., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shanghai Huahong Integrated Circuit Co.,Ltd holds 1 registered blocks in the IEEE registry, ranking #25,950 of 33,427 organizations by block count.