Les adresses IP débutant par 121.231.4 sont fournies par ChinaNet, elles appartiennent au CIDR (Classless Inter-Domain Routing) 121.224.0.0/12, le bloc IP comprant les adresses de 121.224.0.0 à 121.239.255.255). Le numéro de système autonome (ASN) est 4134.
| ASN | 4134 |
| IP commençant par | 121.224.0.0 |
| IP se terminant par | 121.239.255.255 |
| Nom ASN | ChinaNet |
| CDIR | 121.224.0.0/12 |
| IP numérique | |
| Registe | apnic |
| Dernière mise à jour | 24/03/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | CN | Chine | - | Changzhou | 31,7833 | 119,9667 | 2018-03-24 |
| MaxMind | CN | Chine | - | Nankin | 32,0617 | 118,7778 | 2018-03-24 |
| Whois | CN | - | - | - | 104 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.231.4.0 | 2045182976 | 0 |
| 121.231.4.1 | 2045182977 | 0 |
| 121.231.4.2 | 2045182978 | 0 |
| 121.231.4.3 | 2045182979 | 0 |
| 121.231.4.4 | 2045182980 | 0 |
| 121.231.4.5 | 2045182981 | 0 |
| 121.231.4.6 | 2045182982 | 0 |
| 121.231.4.7 | 2045182983 | 0 |
| 121.231.4.8 | 2045182984 | 0 |
| 121.231.4.9 | 2045182985 | 0 |
| 121.231.4.10 | 2045182986 | 0 |
| 121.231.4.11 | 2045182987 | 0 |
| 121.231.4.12 | 2045182988 | 0 |
| 121.231.4.13 | 2045182989 | 0 |
| 121.231.4.14 | 2045182990 | 0 |
| 121.231.4.15 | 2045182991 | 0 |
| 121.231.4.16 | 2045182992 | 0 |
| 121.231.4.17 | 2045182993 | 0 |
| 121.231.4.18 | 2045182994 | 0 |
| 121.231.4.19 | 2045182995 | 0 |
| 121.231.4.20 | 2045182996 | 0 |
| 121.231.4.21 | 2045182997 | 0 |
| 121.231.4.22 | 2045182998 | 0 |
| 121.231.4.23 | 2045182999 | 0 |
| 121.231.4.24 | 2045183000 | 0 |
| 121.231.4.25 | 2045183001 | 0 |
| 121.231.4.26 | 2045183002 | 0 |
| 121.231.4.27 | 2045183003 | 0 |
| 121.231.4.28 | 2045183004 | 0 |
| 121.231.4.29 | 2045183005 | 0 |
| 121.231.4.30 | 2045183006 | 0 |
| 121.231.4.31 | 2045183007 | 0 |
| 121.231.4.32 | 2045183008 | 0 |
| 121.231.4.33 | 2045183009 | 0 |
| 121.231.4.34 | 2045183010 | 0 |
| 121.231.4.35 | 2045183011 | 0 |
| 121.231.4.36 | 2045183012 | 0 |
| 121.231.4.37 | 2045183013 | 0 |
| 121.231.4.38 | 2045183014 | 0 |
| 121.231.4.39 | 2045183015 | 0 |
| 121.231.4.40 | 2045183016 | 0 |
| 121.231.4.41 | 2045183017 | 0 |
| 121.231.4.42 | 2045183018 | 0 |
| 121.231.4.43 | 2045183019 | 0 |
| 121.231.4.44 | 2045183020 | 0 |
| 121.231.4.45 | 2045183021 | 0 |
| 121.231.4.46 | 2045183022 | 0 |
| 121.231.4.47 | 2045183023 | 0 |
| 121.231.4.48 | 2045183024 | 0 |
| 121.231.4.49 | 2045183025 | 0 |
| 121.231.4.50 | 2045183026 | 0 |
| 121.231.4.51 | 2045183027 | 0 |
| 121.231.4.52 | 2045183028 | 0 |
| 121.231.4.53 | 2045183029 | 0 |
| 121.231.4.54 | 2045183030 | 0 |
| 121.231.4.55 | 2045183031 | 0 |
| 121.231.4.56 | 2045183032 | 0 |
| 121.231.4.57 | 2045183033 | 0 |
| 121.231.4.58 | 2045183034 | 0 |
| 121.231.4.59 | 2045183035 | 0 |
| 121.231.4.60 | 2045183036 | 0 |
| 121.231.4.61 | 2045183037 | 0 |
| 121.231.4.62 | 2045183038 | 0 |
| 121.231.4.63 | 2045183039 | 0 |
| 121.231.4.64 | 2045183040 | 0 |
| 121.231.4.65 | 2045183041 | 0 |
| 121.231.4.66 | 2045183042 | 0 |
| 121.231.4.67 | 2045183043 | 0 |
| 121.231.4.68 | 2045183044 | 0 |
| 121.231.4.69 | 2045183045 | 0 |
| 121.231.4.70 | 2045183046 | 0 |
| 121.231.4.71 | 2045183047 | 0 |
| 121.231.4.72 | 2045183048 | 0 |
| 121.231.4.73 | 2045183049 | 0 |
| 121.231.4.74 | 2045183050 | 0 |
| 121.231.4.75 | 2045183051 | 0 |
| 121.231.4.76 | 2045183052 | 0 |
| 121.231.4.77 | 2045183053 | 0 |
| 121.231.4.78 | 2045183054 | 0 |
| 121.231.4.79 | 2045183055 | 0 |
| 121.231.4.80 | 2045183056 | 0 |
| 121.231.4.81 | 2045183057 | 0 |
| 121.231.4.82 | 2045183058 | 0 |
| 121.231.4.83 | 2045183059 | 0 |
| 121.231.4.84 | 2045183060 | 0 |
| 121.231.4.85 | 2045183061 | 0 |