The IP address 128.138.237 is provided by University of Colorado at Boulder, it's belong to the CDIR (Classless Inter-Domain Routing) 128.138.0.0/16 (range 128.138.0.0 to 128.138.255.255). The autonomous system number (ASN) is 104.
| ASN | 104 |
| IP starting by | 128.138.0.0 |
| IP ending by | 128.138.255.255 |
| ASN Name | University of Colorado at Boulder |
| CDIR | 128.138.0.0/16 |
| Numerical IP | |
| Registry | arin |
| Last update | 08/08/2020 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | IL | Israel | - | West Jerusalem | 31.782 | 35.2196 | 2020-08-07 |
| MaxMind | IL | Israel | - | Jerusalem | 31.78 | 35.23 | 2020-08-07 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |