Shanghai Amphenol Airwave Communication Electronics Co.,Ltd.

Any device whose MAC address begins with B4:DD:E0 has a network interface built by Shanghai Amphenol Airwave Communication Electronics 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

B4:DD:E0

Organization

Shanghai Amphenol Airwave Communication Electronics Co.,Ltd.

Address

NO. 689 Shen Nan Road, Xin Zhuang Industry Park Shanghai 201108 P. R. China Shanghai Shanghai CN 201108

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.