Hangzhou Hollysys Automation Co., Ltd
Any device whose MAC address begins with 00:1C:47 has a network interface built by Hangzhou Hollysys Automation 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
- 00:1C:47
- Organization
- Hangzhou Hollysys Automation Co., Ltd
- Address
- No.10 Middle Road, Jiancaicheng, Haidian District, Beijing CN 100096
- 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.
Assignment history (1)
The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.
- 2026-07-17Assigned to "Hangzhou Hollysys Automation Co., Ltd"