Pingtek Co., Ltd.

Any device whose MAC address begins with E4:60:59 has a network interface built by Pingtek 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

E4:60:59

Organization

Pingtek Co., Ltd.

Address

5F., No.786, Zhongzheng Rd., Zhonghe Dist. New Taipei City TW 235

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.