Shenzhen MADIGI Electronic Technology Co., Ltd MA-M
MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix38:F7:CD:C0:00:00 /28
Vendor addressRoom 111,1A Floor,Kanghesheng Blgg,No.1.Chuangsheng Rd.Nanshan District Shenzhen Guangdong CN 518000
Block range38:F7:CD:C0:00:00– 38:F7:CD: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