Les adresses IP débutant par 203.139.3 sont fournies par SoftBank Mobile Corp., elles appartiennent au CIDR (Classless Inter-Domain Routing) 203.139.0.0/18, le bloc IP comprant les adresses de 203.139.0.0 à 203.139.63.255). Le numéro de système autonome (ASN) est 4725.
| ASN | 4725 |
| IP commençant par | 203.139.0.0 |
| IP se terminant par | 203.139.63.255 |
| Nom ASN | SoftBank Mobile Corp. |
| CDIR | 203.139.0.0/18 |
| IP numérique | |
| Registe | apnic |
| Dernière mise à jour | 21/09/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | JP | Japon | - | Sendai | 38,267 | 140,867 | 2018-09-21 |
| MaxMind | JP | Japon | - | - | 35,69 | 139,69 | 2018-09-21 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 203.139.3.0 | 3414885120 | 0 |
| 203.139.3.1 | 3414885121 | 0 |
| 203.139.3.2 | 3414885122 | 0 |
| 203.139.3.3 | 3414885123 | 0 |
| 203.139.3.4 | 3414885124 | 0 |
| 203.139.3.5 | 3414885125 | 0 |
| 203.139.3.6 | 3414885126 | 0 |
| 203.139.3.7 | 3414885127 | 0 |
| 203.139.3.8 | 3414885128 | 0 |
| 203.139.3.9 | 3414885129 | 0 |
| 203.139.3.10 | 3414885130 | 0 |
| 203.139.3.11 | 3414885131 | 0 |
| 203.139.3.12 | 3414885132 | 0 |
| 203.139.3.13 | 3414885133 | 0 |
| 203.139.3.14 | 3414885134 | 0 |
| 203.139.3.15 | 3414885135 | 0 |
| 203.139.3.16 | 3414885136 | 0 |
| 203.139.3.17 | 3414885137 | 0 |
| 203.139.3.18 | 3414885138 | 0 |
| 203.139.3.19 | 3414885139 | 0 |
| 203.139.3.20 | 3414885140 | 0 |
| 203.139.3.21 | 3414885141 | 0 |
| 203.139.3.22 | 3414885142 | 0 |
| 203.139.3.23 | 3414885143 | 0 |
| 203.139.3.24 | 3414885144 | 0 |
| 203.139.3.25 | 3414885145 | 0 |
| 203.139.3.26 | 3414885146 | 0 |
| 203.139.3.27 | 3414885147 | 0 |
| 203.139.3.28 | 3414885148 | 0 |
| 203.139.3.29 | 3414885149 | 0 |
| 203.139.3.30 | 3414885150 | 0 |
| 203.139.3.31 | 3414885151 | 0 |
| 203.139.3.32 | 3414885152 | 0 |
| 203.139.3.33 | 3414885153 | 0 |
| 203.139.3.34 | 3414885154 | 0 |
| 203.139.3.35 | 3414885155 | 0 |
| 203.139.3.36 | 3414885156 | 0 |
| 203.139.3.37 | 3414885157 | 0 |
| 203.139.3.38 | 3414885158 | 0 |
| 203.139.3.39 | 3414885159 | 0 |
| 203.139.3.40 | 3414885160 | 0 |
| 203.139.3.41 | 3414885161 | 0 |
| 203.139.3.42 | 3414885162 | 0 |
| 203.139.3.43 | 3414885163 | 0 |
| 203.139.3.44 | 3414885164 | 0 |
| 203.139.3.45 | 3414885165 | 0 |
| 203.139.3.46 | 3414885166 | 0 |
| 203.139.3.47 | 3414885167 | 0 |
| 203.139.3.48 | 3414885168 | 0 |
| 203.139.3.49 | 3414885169 | 0 |
| 203.139.3.50 | 3414885170 | 0 |
| 203.139.3.51 | 3414885171 | 0 |
| 203.139.3.52 | 3414885172 | 0 |
| 203.139.3.53 | 3414885173 | 0 |
| 203.139.3.54 | 3414885174 | 0 |
| 203.139.3.55 | 3414885175 | 0 |
| 203.139.3.56 | 3414885176 | 0 |
| 203.139.3.57 | 3414885177 | 0 |
| 203.139.3.58 | 3414885178 | 0 |
| 203.139.3.59 | 3414885179 | 0 |
| 203.139.3.60 | 3414885180 | 0 |
| 203.139.3.61 | 3414885181 | 0 |
| 203.139.3.62 | 3414885182 | 0 |
| 203.139.3.63 | 3414885183 | 0 |
| 203.139.3.64 | 3414885184 | 0 |
| 203.139.3.65 | 3414885185 | 0 |
| 203.139.3.66 | 3414885186 | 0 |
| 203.139.3.67 | 3414885187 | 0 |
| 203.139.3.68 | 3414885188 | 0 |
| 203.139.3.69 | 3414885189 | 0 |
| 203.139.3.70 | 3414885190 | 0 |
| 203.139.3.71 | 3414885191 | 0 |
| 203.139.3.72 | 3414885192 | 0 |
| 203.139.3.73 | 3414885193 | 0 |
| 203.139.3.74 | 3414885194 | 0 |
| 203.139.3.75 | 3414885195 | 0 |
| 203.139.3.76 | 3414885196 | 0 |
| 203.139.3.77 | 3414885197 | 0 |
| 203.139.3.78 | 3414885198 | 0 |
| 203.139.3.79 | 3414885199 | 0 |
| 203.139.3.80 | 3414885200 | 0 |
| 203.139.3.81 | 3414885201 | 0 |
| 203.139.3.82 | 3414885202 | 0 |
| 203.139.3.83 | 3414885203 | 0 |
| 203.139.3.84 | 3414885204 | 0 |
| 203.139.3.85 | 3414885205 | 0 |