Shanghai Nanchao Information Technology

Any device whose MAC address begins with 30:44:A1 has a network interface built by Shanghai Nanchao Information Technology. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

30:44:A1

Organization

Shanghai Nanchao Information Technology

Address

Floor 1th, building 13, No.368 Zhangjiang Road, Pudong New District, Shanghai shanghai CN 200000

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.