Siemens Rail Automation SAU
Any device whose MAC address begins with 90:DA:F9 has a network interface built by Siemens Rail Automation SAU. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.
- OUI prefix
- 90:DA:F9
- Organization
- Siemens Rail Automation SAU
- Address
- Ronda de Europa, 5 Tres Cantos ES 28760
- 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.