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:76:C3:70:00:00 /28
Vendor addressFloor 17, Building 33, Headquarters Base, No. 70 Phoenix Road, Jiangning District, Nanjing NANJING jiangsu CN 211000
Country🇨🇳 China
RegisteredApr 17, 2025
Block rangeDC:76:C3:70:00:00– DC:76:C3:7F: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:76:C3:60:00:00 /28
ShangHai Zhousheng Intelligent Technology Co., Ltd
Next
DC:76:C3:80:00:00 /28
J&J Philippines Corporation
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
NANJING LOYST INDUSTRIAL NETWORKS CO.,LTD. holds 1 registered blocks in the IEEE registry, ranking #20,595 of 33,427 organizations by block count.