The IP address 203.158.121 is provided by Rajamangala Institute of Technology, it's belong to the CDIR (Classless Inter-Domain Routing) 203.158.96.0/19 (range 203.158.96.0 to 203.158.127.255). The autonomous system number (ASN) is 9903.
| ASN | 9903 |
| IP starting by | 203.158.96.0 |
| IP ending by | 203.158.127.255 |
| ASN Name | Rajamangala Institute of Technology |
| CDIR | 203.158.96.0/19 |
| Numerical IP | |
| Registry | apnic |
| Last update | 02/12/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | TH | Thailand | - | Bangkok | 13.75 | 100.5167 | 2019-12-01 |
| MaxMind | TH | Thailand | - | Pathum Thani | 14.0135 | 100.5305 | 2019-12-01 |
| Whois | TH | - | - | - | 101 | 16 | |
| W3C | - | - | - | - | - | - | - |