Les adresses IP débutant par 121.2.183 sont fournies par So-net Entertainment Corporation, elles appartiennent au CIDR (Classless Inter-Domain Routing) 121.2.0.0/15, le bloc IP comprant les adresses de 121.2.0.0 à 121.3.255.255). Le numéro de système autonome (ASN) est 2527.
| ASN | 2527 |
| IP commençant par | 121.2.0.0 |
| IP se terminant par | 121.3.255.255 |
| Nom ASN | So-net Entertainment Corporation |
| CDIR | 121.2.0.0/15 |
| IP numérique | |
| Registe | apnic |
| Dernière mise à jour | 15/08/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | JP | Japan | - | Tokyo | 35,6895 | 139,6917 | 2017-08-15 |
| MaxMind | JP | Japon | - | Tokyo | 35,6427 | 139,7677 | 2017-08-15 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.2.183.0 | 2030221056 | 0 |
| 121.2.183.1 | 2030221057 | 0 |
| 121.2.183.2 | 2030221058 | 0 |
| 121.2.183.3 | 2030221059 | 0 |
| 121.2.183.4 | 2030221060 | 0 |
| 121.2.183.5 | 2030221061 | 0 |
| 121.2.183.6 | 2030221062 | 0 |
| 121.2.183.7 | 2030221063 | 0 |
| 121.2.183.8 | 2030221064 | 0 |
| 121.2.183.9 | 2030221065 | 0 |
| 121.2.183.10 | 2030221066 | 0 |
| 121.2.183.11 | 2030221067 | 0 |
| 121.2.183.12 | 2030221068 | 0 |
| 121.2.183.13 | 2030221069 | 0 |
| 121.2.183.14 | 2030221070 | 0 |
| 121.2.183.15 | 2030221071 | 0 |
| 121.2.183.16 | 2030221072 | 0 |
| 121.2.183.17 | 2030221073 | 0 |
| 121.2.183.18 | 2030221074 | 0 |
| 121.2.183.19 | 2030221075 | 0 |
| 121.2.183.20 | 2030221076 | 0 |
| 121.2.183.21 | 2030221077 | 0 |
| 121.2.183.22 | 2030221078 | 0 |
| 121.2.183.23 | 2030221079 | 0 |
| 121.2.183.24 | 2030221080 | 0 |
| 121.2.183.25 | 2030221081 | 0 |
| 121.2.183.26 | 2030221082 | 0 |
| 121.2.183.27 | 2030221083 | 0 |
| 121.2.183.28 | 2030221084 | 0 |
| 121.2.183.29 | 2030221085 | 0 |
| 121.2.183.30 | 2030221086 | 0 |
| 121.2.183.31 | 2030221087 | 0 |
| 121.2.183.32 | 2030221088 | 0 |
| 121.2.183.33 | 2030221089 | 0 |
| 121.2.183.34 | 2030221090 | 0 |
| 121.2.183.35 | 2030221091 | 0 |
| 121.2.183.36 | 2030221092 | 0 |
| 121.2.183.37 | 2030221093 | 0 |
| 121.2.183.38 | 2030221094 | 0 |
| 121.2.183.39 | 2030221095 | 0 |
| 121.2.183.40 | 2030221096 | 0 |
| 121.2.183.41 | 2030221097 | 0 |
| 121.2.183.42 | 2030221098 | 0 |
| 121.2.183.43 | 2030221099 | 0 |
| 121.2.183.44 | 2030221100 | 0 |
| 121.2.183.45 | 2030221101 | 0 |
| 121.2.183.46 | 2030221102 | 0 |
| 121.2.183.47 | 2030221103 | 0 |
| 121.2.183.48 | 2030221104 | 0 |
| 121.2.183.49 | 2030221105 | 0 |
| 121.2.183.50 | 2030221106 | 0 |
| 121.2.183.51 | 2030221107 | 0 |
| 121.2.183.52 | 2030221108 | 0 |
| 121.2.183.53 | 2030221109 | 0 |
| 121.2.183.54 | 2030221110 | 0 |
| 121.2.183.55 | 2030221111 | 0 |
| 121.2.183.56 | 2030221112 | 0 |
| 121.2.183.57 | 2030221113 | 0 |
| 121.2.183.58 | 2030221114 | 0 |
| 121.2.183.59 | 2030221115 | 0 |
| 121.2.183.60 | 2030221116 | 0 |
| 121.2.183.61 | 2030221117 | 0 |
| 121.2.183.62 | 2030221118 | 0 |
| 121.2.183.63 | 2030221119 | 0 |
| 121.2.183.64 | 2030221120 | 0 |
| 121.2.183.65 | 2030221121 | 0 |
| 121.2.183.66 | 2030221122 | 0 |
| 121.2.183.67 | 2030221123 | 0 |
| 121.2.183.68 | 2030221124 | 0 |
| 121.2.183.69 | 2030221125 | 0 |
| 121.2.183.70 | 2030221126 | 0 |
| 121.2.183.71 | 2030221127 | 0 |
| 121.2.183.72 | 2030221128 | 0 |
| 121.2.183.73 | 2030221129 | 0 |
| 121.2.183.74 | 2030221130 | 0 |
| 121.2.183.75 | 2030221131 | 0 |
| 121.2.183.76 | 2030221132 | 0 |
| 121.2.183.77 | 2030221133 | 0 |
| 121.2.183.78 | 2030221134 | 0 |
| 121.2.183.79 | 2030221135 | 0 |
| 121.2.183.80 | 2030221136 | 0 |
| 121.2.183.81 | 2030221137 | 0 |
| 121.2.183.82 | 2030221138 | 0 |
| 121.2.183.83 | 2030221139 | 0 |
| 121.2.183.84 | 2030221140 | 0 |
| 121.2.183.85 | 2030221141 | 0 |