The IP address 131.215.231 is provided by California Institute of Technology, it's belong to the CDIR (Classless Inter-Domain Routing) 131.215.0.0/16 (range 131.215.0.0 to 131.215.255.255). The autonomous system number (ASN) is 31.
| ASN | 31 |
| IP starting by | 131.215.0.0 |
| IP ending by | 131.215.255.255 |
| ASN Name | California Institute of Technology |
| CDIR | 131.215.0.0/16 |
| Numerical IP | |
| Registry | arin |
| Last update | 19/09/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Reno | 39.5386 | -119.8172 | 2019-09-19 |
| MaxMind | US | United States | - | Las Vegas | 36.0877 | -115.1485 | 2019-09-19 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |