JiangSu Newcom Optical&Electrical Communication CO Ltd

Any device whose MAC address begins with 5C:5D:EC has a network interface built by JiangSu Newcom Optical&Electrical Communication 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

5C:5D:EC

Organization

JiangSu Newcom Optical&Electrical Communication CO Ltd

Address

17F, Guyang Century Mansion, NO 600 Zhujiang Road Nanjing JiangSu CN 210018

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.