Hangzhou ChengFengErLai Digial Technology Co.,Ltd.

Any device whose MAC address begins with 34:5E:E7 has a network interface built by Hangzhou ChengFengErLai Digial 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

34:5E:E7

Organization

Hangzhou ChengFengErLai Digial Technology Co.,Ltd.

Address

9th Floor, Building 1, No. 48 Haoshantou South, Chonghua Village, Pingyao Town, Yuhang District, Hangzhou City, Zhejiang Province Hangzhou CN 311100

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.