Hangzhou Sunyard System Engineering Co.,Ltd.

Any device whose MAC address begins with 00:11:D5 has a network interface built by Hangzhou Sunyard System Engineering 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

00:11:D5

Organization

Hangzhou Sunyard System Engineering Co.,Ltd.

Address

Sunyard Science & Technology Building Hi-Tech Software Park(Second Land Consolidation) Hangzhou Zhejiang CN 310053

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.