Cambridge Industries(Group) Co.,Ltd.
Any device whose MAC address begins with A4:C7:DE has a network interface built by Cambridge Industries(Group) 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
- A4:C7:DE
- Organization
- Cambridge Industries(Group) Co.,Ltd.
- Address
- 22 Floor,Qilai Tower;889 Yishan Road Shanghai CN 200233
- 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 "Cambridge Industries(Group) Co.,Ltd."