China SSJ (Suzhou) Network Technology Inc.

Any device whose MAC address begins with 98:3F:9F has a network interface built by China SSJ (Suzhou) Network Technology Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

98:3F:9F

Organization

China SSJ (Suzhou) Network Technology Inc.

Address

399 Linquan St., Dongnan Building 411 Suzhou Jiangsu CN 215123

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.