Shanghai Qianjin Electronic Equipment 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.

Prefix58:FC:DB:80:00:00 /28

Vendor address4/F,Building No.2,401 Caobao Road Shanghai 200233

RegisteredOct 16, 2015

Block range58:FC:DB:80:00:00– 58:FC:DB:8F: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

58:FC:DB:80:00:00 58:FC:DB:87:FF:FF 58:FC:DB:8F:FF:FF

Where this block sits

Previous 58:FC:DB:70:00:00 /28 Prometheus Security Group Global, Inc. Next 58:FC:DB:90:00:00 /28 Hi-Target Surveying Instrument Co., Ltd.

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

Shanghai QianJin Electronic Equipment Co. Ltd. holds 2 registered blocks in the IEEE registry, ranking #2,960 of 33,427 organizations by block count.