Les adresses IP débutant par 203.139.4 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 | 21/03/2020 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | JP | Japon | - | Sendai | 38,267 | 140,867 | 2020-03-21 |
| MaxMind | JP | Japon | - | - | 35,69 | 139,69 | 2020-03-21 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 203.139.4.0 | 3414885376 | 0 |
| 203.139.4.1 | 3414885377 | 0 |
| 203.139.4.2 | 3414885378 | 0 |
| 203.139.4.3 | 3414885379 | 0 |
| 203.139.4.4 | 3414885380 | 0 |
| 203.139.4.5 | 3414885381 | 0 |
| 203.139.4.6 | 3414885382 | 0 |
| 203.139.4.7 | 3414885383 | 0 |
| 203.139.4.8 | 3414885384 | 0 |
| 203.139.4.9 | 3414885385 | 0 |
| 203.139.4.10 | 3414885386 | 0 |
| 203.139.4.11 | 3414885387 | 0 |
| 203.139.4.12 | 3414885388 | 0 |
| 203.139.4.13 | 3414885389 | 0 |
| 203.139.4.14 | 3414885390 | 0 |
| 203.139.4.15 | 3414885391 | 0 |
| 203.139.4.16 | 3414885392 | 0 |
| 203.139.4.17 | 3414885393 | 0 |
| 203.139.4.18 | 3414885394 | 0 |
| 203.139.4.19 | 3414885395 | 0 |
| 203.139.4.20 | 3414885396 | 0 |
| 203.139.4.21 | 3414885397 | 0 |
| 203.139.4.22 | 3414885398 | 0 |
| 203.139.4.23 | 3414885399 | 0 |
| 203.139.4.24 | 3414885400 | 0 |
| 203.139.4.25 | 3414885401 | 0 |
| 203.139.4.26 | 3414885402 | 0 |
| 203.139.4.27 | 3414885403 | 0 |
| 203.139.4.28 | 3414885404 | 0 |
| 203.139.4.29 | 3414885405 | 0 |
| 203.139.4.30 | 3414885406 | 0 |
| 203.139.4.31 | 3414885407 | 0 |
| 203.139.4.32 | 3414885408 | 0 |
| 203.139.4.33 | 3414885409 | 0 |
| 203.139.4.34 | 3414885410 | 0 |
| 203.139.4.35 | 3414885411 | 0 |
| 203.139.4.36 | 3414885412 | 0 |
| 203.139.4.37 | 3414885413 | 0 |
| 203.139.4.38 | 3414885414 | 0 |
| 203.139.4.39 | 3414885415 | 0 |
| 203.139.4.40 | 3414885416 | 0 |
| 203.139.4.41 | 3414885417 | 0 |
| 203.139.4.42 | 3414885418 | 0 |
| 203.139.4.43 | 3414885419 | 0 |
| 203.139.4.44 | 3414885420 | 0 |
| 203.139.4.45 | 3414885421 | 0 |
| 203.139.4.46 | 3414885422 | 0 |
| 203.139.4.47 | 3414885423 | 0 |
| 203.139.4.48 | 3414885424 | 0 |
| 203.139.4.49 | 3414885425 | 0 |
| 203.139.4.50 | 3414885426 | 0 |
| 203.139.4.51 | 3414885427 | 0 |
| 203.139.4.52 | 3414885428 | 0 |
| 203.139.4.53 | 3414885429 | 0 |
| 203.139.4.54 | 3414885430 | 0 |
| 203.139.4.55 | 3414885431 | 0 |
| 203.139.4.56 | 3414885432 | 0 |
| 203.139.4.57 | 3414885433 | 0 |
| 203.139.4.58 | 3414885434 | 0 |
| 203.139.4.59 | 3414885435 | 0 |
| 203.139.4.60 | 3414885436 | 0 |
| 203.139.4.61 | 3414885437 | 0 |
| 203.139.4.62 | 3414885438 | 0 |
| 203.139.4.63 | 3414885439 | 0 |
| 203.139.4.64 | 3414885440 | 0 |
| 203.139.4.65 | 3414885441 | 0 |
| 203.139.4.66 | 3414885442 | 0 |
| 203.139.4.67 | 3414885443 | 0 |
| 203.139.4.68 | 3414885444 | 0 |
| 203.139.4.69 | 3414885445 | 0 |
| 203.139.4.70 | 3414885446 | 0 |
| 203.139.4.71 | 3414885447 | 0 |
| 203.139.4.72 | 3414885448 | 0 |
| 203.139.4.73 | 3414885449 | 0 |
| 203.139.4.74 | 3414885450 | 0 |
| 203.139.4.75 | 3414885451 | 0 |
| 203.139.4.76 | 3414885452 | 0 |
| 203.139.4.77 | 3414885453 | 0 |
| 203.139.4.78 | 3414885454 | 0 |
| 203.139.4.79 | 3414885455 | 0 |
| 203.139.4.80 | 3414885456 | 0 |
| 203.139.4.81 | 3414885457 | 0 |
| 203.139.4.82 | 3414885458 | 0 |
| 203.139.4.83 | 3414885459 | 0 |
| 203.139.4.84 | 3414885460 | 0 |
| 203.139.4.85 | 3414885461 | 0 |