MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix78:78:35:C0:00:00 /28
Vendor addressBuilding A, No.5(DBG Factory), Yongda Road, Xiangshui River Industrial Area, Daya Bay, Huizhou Huizhou Gangdong CN 516083
Country🇨🇳 China
RegisteredJun 26, 2025
Block range78:78:35:C0:00:00– 78:78:35:CF: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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78:78:35:B0:00:00 /28
Shanghai Intchains Technology Co., Ltd.
Next
78:78:35:D0:00:00 /28
Suzhou Chena Information Technology Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
DBG Communications Technology Co.,Ltd. holds 1 registered blocks in the IEEE registry, ranking #9,984 of 33,427 organizations by block count.