ESEN Optoelectronics Technology Co.,Ltd.

Any device whose MAC address begins with 7C:E5:6B has a network interface built by ESEN Optoelectronics Technology 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

7C:E5:6B

Organization

ESEN Optoelectronics Technology Co.,Ltd.

Address

Houcheng Yuanjiaqiao ,Jingang Town Zhangjiagang Jiangsu CN 215631

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.