Siren Care(Shanghai) information and technology company
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.
PrefixFC:CD:2F:10:00:00 /28
Vendor addressRoom 205, Floor 2, B Zone, Building 2, No 1899, Jiahao Rd, Jiading Shanghai CN 201802
Country🇨🇳 China
Block rangeFC:CD:2F:10:00:00– FC:CD:2F:1F: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