Yongjing Shanghai Electronic Science and Technology (50:FF:99:30:00:00 /28)

Yongjing Shanghai Electronic Science and Technology 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.

Prefix50:FF:99:30:00:00 /28

Vendor addressRoom 202,Building 2,No.65,Lane1398,Xin Zhu Road, Minhang District Shanghai. shanghai shanghai CN 201100

Block range50:FF:99:30:00:00– 50:FF:99:3F: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

50:FF:99:30:00:00 50:FF:99:37:FF:FF 50:FF:99:3F:FF:FF