Nanjing Qinheng Microelectronics Co., Ltd. (9C:7F:64:00:00:00 /24)

Nanjing Qinheng Microelectronics Co., Ltd. MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix9C:7F:64:00:00:00 /24

Vendor addressNo.18, Ningshuang Road Nanjing Jiangsu CN 210012

Block range9C:7F:64:00:00:00– 9C:7F:64:FF:FF:FF

Address capacity16,777,216

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

9C:7F:64:00:00:00 9C:7F:64:7F:FF:FF 9C:7F:64:FF:FF:FF

Other blocks registered to Nanjing Qinheng Microelectronics Co., Ltd.

0C:3D:5E:00:00:00 /24 MA-L 18:F0:55:00:00:00 /24 MA-L 3C:AB:72:00:00:00 /24 MA-L 50:54:7B:00:00:00 /24 MA-L 50:F8:AD:00:00:00 /24 MA-L 54:14:A7:00:00:00 /24 MA-L 54:6C:50:00:00:00 /24 MA-L 5C:53:10:00:00:00 /24 MA-L 70:19:88:00:00:00 /24 MA-L C8:17:F5:00:00:00 /24 MA-L D0:0C:5E:00:00:00 /24 MA-L DC:04:5A:00:00:00 /24 MA-L