The IP address 121.221.129 is provided by Telstra Pty Ltd, it's belong to the CDIR (Classless Inter-Domain Routing) 121.208.0.0/12 (range 121.208.0.0 to 121.223.255.255). The autonomous system number (ASN) is 1221.
| ASN | 1221 |
| IP starting by | 121.208.0.0 |
| IP ending by | 121.223.255.255 |
| ASN Name | Telstra Pty Ltd |
| CDIR | 121.208.0.0/12 |
| Numerical IP | |
| Registry | apnic |
| Last update | 25/08/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | AU | Australia | - | Newtown | -37.7 | 143.65 | 2018-08-25 |
| MaxMind | AU | Australia | - | Balwyn North | -37.7909 | 145.0939 | 2018-08-25 |
| Whois | AU | - | - | - | 134 | -25 | |
| W3C | - | - | - | - | - | - | - |