The IP address 121.23.145 is provided by CNC Group, it's belong to the CDIR (Classless Inter-Domain Routing) 121.16.0.0/13 (range 121.16.0.0 to 121.23.255.255). The autonomous system number (ASN) is 4837.
| ASN | 4837 |
| IP starting by | 121.16.0.0 |
| IP ending by | 121.23.255.255 |
| ASN Name | CNC Group |
| CDIR | 121.16.0.0/13 |
| Numerical IP | |
| Registry | apnic |
| Last update | 17/04/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | CN | China | - | Hohhot | 40.8106 | 111.6522 | 2019-04-17 |
| MaxMind | CN | China | - | Langfang | 39.5097 | 116.6947 | 2019-04-17 |
| Whois | CN | - | - | - | 104 | 36 | |
| W3C | - | - | - | - | - | - | - |