OUI Lookup
001f39
Construcciones y Auxiliar de Ferrocarriles, S.A.
Manufacturer Information
- OUI Prefix
- 001f39
- Manufacturer
- Construcciones y Auxiliar de Ferrocarriles, S.A.
- Address
- C/ J.M. Iturrioz, 26 Beasain Guipúzcoa ES E-20200
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 001F39
The OUI prefix 001F39 is assigned to Construcciones y Auxiliar de Ferrocarriles, S.A., based in C/ J.M. Iturrioz, 26 Beasain Guipúzcoa ES E-20200 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to Construcciones y Auxiliar de Ferrocarriles, S.A..