Eoptolink Technology Inc. Ltd,

Any device whose MAC address begins with 70:EE:A3 has a network interface built by Eoptolink Technology Inc. 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

70:EE:A3

Organization

Eoptolink Technology Inc. Ltd,

Address

No.127 West Wulian Street Chengdu China/Sichuan CN 610213

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.