MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix34:D7:F5:B0:00:00 /28
Vendor addressRoom·701,·No.1188. Qinzhou· North· Road,.Xuhui. District Shanghai Shanghai CN 200233
Country🇨🇳 China
RegisteredJan 23, 2026
Block range34:D7:F5:B0:00:00– 34:D7:F5:BF: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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34:D7:F5:A0:00:00 /28
Hefei Panyuan Intelligent Technology Co., Ltd
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34:D7:F5:C0:00:00 /28
Lucy Electric Manufacturing and Technologies India Pvt Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Resnics Technology (Shanghai), lnc. holds 1 registered blocks in the IEEE registry, ranking #24,483 of 33,427 organizations by block count.