Construcciones y Auxiliar de Ferrocarriles, S.A. MAC Addresses
This page provides information about MAC addresses and OUIs assigned to Construcciones y Auxiliar de Ferrocarriles, S.A.. 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 Construcciones y Auxiliar de Ferrocarriles, S.A. MAC Addresses
MAC addresses beginning with 00:1F:39: are manufactured by Construcciones y Auxiliar de Ferrocarriles, S.A.. When you see a device on your network with this OUI prefix, it indicates that the device was manufactured by Construcciones y Auxiliar de Ferrocarriles, S.A..
The IEEE assigns OUI prefixes to manufacturers to ensure uniqueness in the global networking ecosystem. Construcciones y Auxiliar de Ferrocarriles, S.A. has been assigned the OUI prefix 001F39 (among others) for use in their network devices.
Common Construcciones y Auxiliar de Ferrocarriles, S.A. Devices
Devices manufactured by Construcciones y Auxiliar de Ferrocarriles, S.A. 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 Construcciones y Auxiliar de Ferrocarriles, S.A. Devices on Your Network
To identify Construcciones y Auxiliar de Ferrocarriles, S.A. 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 Construcciones y Auxiliar de Ferrocarriles, S.A. devices, the MAC address would look like:
00:1F:39:XX:XX:XX
The first three bytes (00:1F:39) identify the manufacturer as Construcciones y Auxiliar de Ferrocarriles, S.A., while the last three bytes are unique to each device.