The IP address 128.220.231 is provided by Johns Hopkins University, it's belong to the CDIR (Classless Inter-Domain Routing) 128.220.0.0/16 (range 128.220.0.0 to 128.220.255.255). The autonomous system number (ASN) is 5723.
| ASN | 5723 |
| IP starting by | 128.220.0.0 |
| IP ending by | 128.220.255.255 |
| ASN Name | Johns Hopkins University |
| CDIR | 128.220.0.0/16 |
| Numerical IP | |
| Registry | arin |
| Last update | 25/04/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Alamosa | 37.4695 | -105.87 | 2019-04-25 |
| MaxMind | US | United States | - | Southborough | 42.2966 | -71.5352 | 2019-04-25 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |