L'indirizzo IP 121.211.3 è fornito da Telstra Pty Ltd, che è di proprietà del CIDR (Classless Inter-Domain Routing) 121.208.0.0/12, IP tra 121.208.0.0 a 121.223.255.255 ). Il numero di sistema autonomo (ASN) è 1221.
| ASN | 1221 |
| IP inizia con | 121.208.0.0 |
| IP finale con | 121.223.255.255 |
| ASN Nome | Telstra Pty Ltd |
| CDIR | 121.208.0.0/12 |
| IP numerico | |
| Registe | apnic |
| Ultimo aggiornamento | 04/08/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | AU | Australia | - | Sydney | -33,8679 | 151,2073 | 2017-08-04 |
| MaxMind | AU | Australia | - | Westmead | -33,8167 | 150,9833 | 2017-08-04 |
| Whois | AU | - | - | - | 134 | -25 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.211.3.0 | 2043872000 | 0 |
| 121.211.3.1 | 2043872001 | 0 |
| 121.211.3.2 | 2043872002 | 0 |
| 121.211.3.3 | 2043872003 | 0 |
| 121.211.3.4 | 2043872004 | 0 |
| 121.211.3.5 | 2043872005 | 0 |
| 121.211.3.6 | 2043872006 | 0 |
| 121.211.3.7 | 2043872007 | 0 |
| 121.211.3.8 | 2043872008 | 0 |
| 121.211.3.9 | 2043872009 | 0 |
| 121.211.3.10 | 2043872010 | 0 |
| 121.211.3.11 | 2043872011 | 0 |
| 121.211.3.12 | 2043872012 | 0 |
| 121.211.3.13 | 2043872013 | 0 |
| 121.211.3.14 | 2043872014 | 0 |
| 121.211.3.15 | 2043872015 | 0 |
| 121.211.3.16 | 2043872016 | 0 |
| 121.211.3.17 | 2043872017 | 0 |
| 121.211.3.18 | 2043872018 | 0 |
| 121.211.3.19 | 2043872019 | 0 |
| 121.211.3.20 | 2043872020 | 0 |
| 121.211.3.21 | 2043872021 | 0 |
| 121.211.3.22 | 2043872022 | 0 |
| 121.211.3.23 | 2043872023 | 0 |
| 121.211.3.24 | 2043872024 | 0 |
| 121.211.3.25 | 2043872025 | 0 |
| 121.211.3.26 | 2043872026 | 0 |
| 121.211.3.27 | 2043872027 | 0 |
| 121.211.3.28 | 2043872028 | 0 |
| 121.211.3.29 | 2043872029 | 0 |
| 121.211.3.30 | 2043872030 | 0 |
| 121.211.3.31 | 2043872031 | 0 |
| 121.211.3.32 | 2043872032 | 0 |
| 121.211.3.33 | 2043872033 | 0 |
| 121.211.3.34 | 2043872034 | 0 |
| 121.211.3.35 | 2043872035 | 0 |
| 121.211.3.36 | 2043872036 | 0 |
| 121.211.3.37 | 2043872037 | 0 |
| 121.211.3.38 | 2043872038 | 0 |
| 121.211.3.39 | 2043872039 | 0 |
| 121.211.3.40 | 2043872040 | 0 |
| 121.211.3.41 | 2043872041 | 0 |
| 121.211.3.42 | 2043872042 | 0 |
| 121.211.3.43 | 2043872043 | 0 |
| 121.211.3.44 | 2043872044 | 0 |
| 121.211.3.45 | 2043872045 | 0 |
| 121.211.3.46 | 2043872046 | 0 |
| 121.211.3.47 | 2043872047 | 0 |
| 121.211.3.48 | 2043872048 | 0 |
| 121.211.3.49 | 2043872049 | 0 |
| 121.211.3.50 | 2043872050 | 0 |
| 121.211.3.51 | 2043872051 | 0 |
| 121.211.3.52 | 2043872052 | 0 |
| 121.211.3.53 | 2043872053 | 0 |
| 121.211.3.54 | 2043872054 | 0 |
| 121.211.3.55 | 2043872055 | 0 |
| 121.211.3.56 | 2043872056 | 0 |
| 121.211.3.57 | 2043872057 | 0 |
| 121.211.3.58 | 2043872058 | 0 |
| 121.211.3.59 | 2043872059 | 0 |
| 121.211.3.60 | 2043872060 | 0 |
| 121.211.3.61 | 2043872061 | 0 |
| 121.211.3.62 | 2043872062 | 0 |
| 121.211.3.63 | 2043872063 | 0 |
| 121.211.3.64 | 2043872064 | 0 |
| 121.211.3.65 | 2043872065 | 0 |
| 121.211.3.66 | 2043872066 | 0 |
| 121.211.3.67 | 2043872067 | 0 |
| 121.211.3.68 | 2043872068 | 0 |
| 121.211.3.69 | 2043872069 | 0 |
| 121.211.3.70 | 2043872070 | 0 |
| 121.211.3.71 | 2043872071 | 0 |
| 121.211.3.72 | 2043872072 | 0 |
| 121.211.3.73 | 2043872073 | 0 |
| 121.211.3.74 | 2043872074 | 0 |
| 121.211.3.75 | 2043872075 | 0 |
| 121.211.3.76 | 2043872076 | 0 |
| 121.211.3.77 | 2043872077 | 0 |
| 121.211.3.78 | 2043872078 | 0 |
| 121.211.3.79 | 2043872079 | 0 |
| 121.211.3.80 | 2043872080 | 0 |
| 121.211.3.81 | 2043872081 | 0 |
| 121.211.3.82 | 2043872082 | 0 |
| 121.211.3.83 | 2043872083 | 0 |
| 121.211.3.84 | 2043872084 | 0 |
| 121.211.3.85 | 2043872085 | 0 |