ZHEJIANG DAHUA TECHNOLOGYCO.,LTD

Any device whose MAC address begins with 30:DD:AA has a network interface built by ZHEJIANG DAHUA TECHNOLOGYCO.,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

30:DD:AA

Organization

ZHEJIANG DAHUA TECHNOLOGYCO.,LTD

Address

1st Floor, Building 1, No. 1399, Binxing Road, Changhe Street, Binjiang District Hangzhou City Zhejiang Province CN 311200

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.