Shanghai IUV Software Development Co. Ltd

Any device whose MAC address begins with 20:F4:52 has a network interface built by Shanghai IUV Software Development Co. Ltd. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

20:F4:52

Organization

Shanghai IUV Software Development Co. Ltd

Address

No.18, Lane 1387 Zhangdong Rd, Pudong, Shanghai, P.R.C shanghai shanghai CN 201203

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.