Les adresses IP débutant par 203.139.1 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 | 16/04/2020 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | JP | Japon | - | Sendai | 38,267 | 140,867 | 2020-04-16 |
| MaxMind | JP | Japon | - | - | 35,69 | 139,69 | 2020-04-16 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 203.139.1.0 | 3414884608 | 0 |
| 203.139.1.1 | 3414884609 | 0 |
| 203.139.1.2 | 3414884610 | 0 |
| 203.139.1.3 | 3414884611 | 0 |
| 203.139.1.4 | 3414884612 | 0 |
| 203.139.1.5 | 3414884613 | 0 |
| 203.139.1.6 | 3414884614 | 0 |
| 203.139.1.7 | 3414884615 | 0 |
| 203.139.1.8 | 3414884616 | 0 |
| 203.139.1.9 | 3414884617 | 0 |
| 203.139.1.10 | 3414884618 | 0 |
| 203.139.1.11 | 3414884619 | 0 |
| 203.139.1.12 | 3414884620 | 0 |
| 203.139.1.13 | 3414884621 | 0 |
| 203.139.1.14 | 3414884622 | 0 |
| 203.139.1.15 | 3414884623 | 0 |
| 203.139.1.16 | 3414884624 | 0 |
| 203.139.1.17 | 3414884625 | 0 |
| 203.139.1.18 | 3414884626 | 0 |
| 203.139.1.19 | 3414884627 | 0 |
| 203.139.1.20 | 3414884628 | 0 |
| 203.139.1.21 | 3414884629 | 0 |
| 203.139.1.22 | 3414884630 | 0 |
| 203.139.1.23 | 3414884631 | 0 |
| 203.139.1.24 | 3414884632 | 0 |
| 203.139.1.25 | 3414884633 | 0 |
| 203.139.1.26 | 3414884634 | 0 |
| 203.139.1.27 | 3414884635 | 0 |
| 203.139.1.28 | 3414884636 | 0 |
| 203.139.1.29 | 3414884637 | 0 |
| 203.139.1.30 | 3414884638 | 0 |
| 203.139.1.31 | 3414884639 | 0 |
| 203.139.1.32 | 3414884640 | 0 |
| 203.139.1.33 | 3414884641 | 0 |
| 203.139.1.34 | 3414884642 | 0 |
| 203.139.1.35 | 3414884643 | 0 |
| 203.139.1.36 | 3414884644 | 0 |
| 203.139.1.37 | 3414884645 | 0 |
| 203.139.1.38 | 3414884646 | 0 |
| 203.139.1.39 | 3414884647 | 0 |
| 203.139.1.40 | 3414884648 | 0 |
| 203.139.1.41 | 3414884649 | 0 |
| 203.139.1.42 | 3414884650 | 0 |
| 203.139.1.43 | 3414884651 | 0 |
| 203.139.1.44 | 3414884652 | 0 |
| 203.139.1.45 | 3414884653 | 0 |
| 203.139.1.46 | 3414884654 | 0 |
| 203.139.1.47 | 3414884655 | 0 |
| 203.139.1.48 | 3414884656 | 0 |
| 203.139.1.49 | 3414884657 | 0 |
| 203.139.1.50 | 3414884658 | 0 |
| 203.139.1.51 | 3414884659 | 0 |
| 203.139.1.52 | 3414884660 | 0 |
| 203.139.1.53 | 3414884661 | 0 |
| 203.139.1.54 | 3414884662 | 0 |
| 203.139.1.55 | 3414884663 | 0 |
| 203.139.1.56 | 3414884664 | 0 |
| 203.139.1.57 | 3414884665 | 0 |
| 203.139.1.58 | 3414884666 | 0 |
| 203.139.1.59 | 3414884667 | 0 |
| 203.139.1.60 | 3414884668 | 0 |
| 203.139.1.61 | 3414884669 | 0 |
| 203.139.1.62 | 3414884670 | 0 |
| 203.139.1.63 | 3414884671 | 0 |
| 203.139.1.64 | 3414884672 | 0 |
| 203.139.1.65 | 3414884673 | 0 |
| 203.139.1.66 | 3414884674 | 0 |
| 203.139.1.67 | 3414884675 | 0 |
| 203.139.1.68 | 3414884676 | 0 |
| 203.139.1.69 | 3414884677 | 0 |
| 203.139.1.70 | 3414884678 | 0 |
| 203.139.1.71 | 3414884679 | 0 |
| 203.139.1.72 | 3414884680 | 0 |
| 203.139.1.73 | 3414884681 | 0 |
| 203.139.1.74 | 3414884682 | 0 |
| 203.139.1.75 | 3414884683 | 0 |
| 203.139.1.76 | 3414884684 | 0 |
| 203.139.1.77 | 3414884685 | 0 |
| 203.139.1.78 | 3414884686 | 0 |
| 203.139.1.79 | 3414884687 | 0 |
| 203.139.1.80 | 3414884688 | 0 |
| 203.139.1.81 | 3414884689 | 0 |
| 203.139.1.82 | 3414884690 | 0 |
| 203.139.1.83 | 3414884691 | 0 |
| 203.139.1.84 | 3414884692 | 0 |
| 203.139.1.85 | 3414884693 | 0 |