Shanghai gatang technology CO.,LTD (30:49:50:90:00:00 /28)

Shanghai gatang 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.

Prefix30:49:50:90:00:00 /28

Vendor addressRoom 507, building 1, No. 2071, Hongmei Road, Xuhui District, Shanghai CN 200030

Block range30:49:50:90:00:00– 30:49:50:9F: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

30:49:50:90:00:00 30:49:50:97:FF:FF 30:49:50:9F:FF:FF