Changzhou Yongse Infotech Co.,Ltd

Any device whose MAC address begins with 50:ED:78 has a network interface built by Changzhou Yongse Infotech 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

50:ED:78

Organization

Changzhou Yongse Infotech Co.,Ltd

Address

No.128 Zhengzhong Rd, Xixiashua Town Changzhou Jiangsu CN 213135

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.