The IP address 145.138.237 is provided by SURFnet, it's belong to the CDIR (Classless Inter-Domain Routing) 145.128.0.0/10 (range 145.128.0.0 to 145.191.255.255). The autonomous system number (ASN) is 1103.
| ASN | 1103 |
| IP starting by | 145.128.0.0 |
| IP ending by | 145.191.255.255 |
| ASN Name | SURFnet |
| CDIR | 145.128.0.0/10 |
| Numerical IP | |
| Registry | ripencc |
| Last update | 01/05/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | NL | Netherlands | - | Arnhem | 51.98 | 5.9111 | 2019-05-01 |
| MaxMind | NL | Netherlands | - | Arnhem | 51.9798 | 5.9256 | 2019-05-01 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |