Siemens Rail Automation SAU MAC Addresses
This page provides information about MAC addresses and OUIs assigned to Siemens Rail Automation SAU. The Organizationally Unique Identifier (OUI) is the first 24 bits of a MAC address and is assigned by the IEEE to uniquely identify a vendor or manufacturer.
About Siemens Rail Automation SAU MAC Addresses
MAC addresses beginning with 90:DA:F9: are manufactured by Siemens Rail Automation SAU. When you see a device on your network with this OUI prefix, it indicates that the device was manufactured by Siemens Rail Automation SAU.
The IEEE assigns OUI prefixes to manufacturers to ensure uniqueness in the global networking ecosystem. Siemens Rail Automation SAU has been assigned the OUI prefix 90DAF9 (among others) for use in their network devices.
Common Siemens Rail Automation SAU Devices
Devices manufactured by Siemens Rail Automation SAU that you might encounter on networks include:
- Network interface cards (NICs)
- Routers and switches
- Wireless access points
- IoT devices
- Embedded systems
- And other networking equipment
Identifying Siemens Rail Automation SAU Devices on Your Network
To identify Siemens Rail Automation SAU devices on your network:
- Use network scanning tools to list devices on your network
- Look for MAC addresses starting with any of the OUI prefixes listed in the sidebar
- Use our MAC address lookup tool to confirm the manufacturer
This can be particularly helpful for network inventory, troubleshooting, and security auditing.
MAC Address Format
A complete MAC address consists of 48 bits (6 bytes) and is typically represented in hexadecimal format with each byte separated by a colon or a hyphen. For Siemens Rail Automation SAU devices, the MAC address would look like:
90:DA:F9:XX:XX:XX
The first three bytes (90:DA:F9) identify the manufacturer as Siemens Rail Automation SAU, while the last three bytes are unique to each device.