Les adresses IP débutant par 121.2.166 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 | 14/08/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | JP | Japon | - | Saitama | 35,867 | 139,65 | 2017-08-14 |
| MaxMind | JP | Japon | - | Tokyo | 35,6427 | 139,7677 | 2017-08-14 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.2.166.0 | 2030216704 | 0 |
| 121.2.166.1 | 2030216705 | 0 |
| 121.2.166.2 | 2030216706 | 0 |
| 121.2.166.3 | 2030216707 | 0 |
| 121.2.166.4 | 2030216708 | 0 |
| 121.2.166.5 | 2030216709 | 0 |
| 121.2.166.6 | 2030216710 | 0 |
| 121.2.166.7 | 2030216711 | 0 |
| 121.2.166.8 | 2030216712 | 0 |
| 121.2.166.9 | 2030216713 | 0 |
| 121.2.166.10 | 2030216714 | 0 |
| 121.2.166.11 | 2030216715 | 0 |
| 121.2.166.12 | 2030216716 | 0 |
| 121.2.166.13 | 2030216717 | 0 |
| 121.2.166.14 | 2030216718 | 0 |
| 121.2.166.15 | 2030216719 | 0 |
| 121.2.166.16 | 2030216720 | 0 |
| 121.2.166.17 | 2030216721 | 0 |
| 121.2.166.18 | 2030216722 | 0 |
| 121.2.166.19 | 2030216723 | 0 |
| 121.2.166.20 | 2030216724 | 0 |
| 121.2.166.21 | 2030216725 | 0 |
| 121.2.166.22 | 2030216726 | 0 |
| 121.2.166.23 | 2030216727 | 0 |
| 121.2.166.24 | 2030216728 | 0 |
| 121.2.166.25 | 2030216729 | 0 |
| 121.2.166.26 | 2030216730 | 0 |
| 121.2.166.27 | 2030216731 | 0 |
| 121.2.166.28 | 2030216732 | 0 |
| 121.2.166.29 | 2030216733 | 0 |
| 121.2.166.30 | 2030216734 | 0 |
| 121.2.166.31 | 2030216735 | 0 |
| 121.2.166.32 | 2030216736 | 0 |
| 121.2.166.33 | 2030216737 | 0 |
| 121.2.166.34 | 2030216738 | 0 |
| 121.2.166.35 | 2030216739 | 0 |
| 121.2.166.36 | 2030216740 | 0 |
| 121.2.166.37 | 2030216741 | 0 |
| 121.2.166.38 | 2030216742 | 0 |
| 121.2.166.39 | 2030216743 | 0 |
| 121.2.166.40 | 2030216744 | 0 |
| 121.2.166.41 | 2030216745 | 0 |
| 121.2.166.42 | 2030216746 | 0 |
| 121.2.166.43 | 2030216747 | 0 |
| 121.2.166.44 | 2030216748 | 0 |
| 121.2.166.45 | 2030216749 | 0 |
| 121.2.166.46 | 2030216750 | 0 |
| 121.2.166.47 | 2030216751 | 0 |
| 121.2.166.48 | 2030216752 | 0 |
| 121.2.166.49 | 2030216753 | 0 |
| 121.2.166.50 | 2030216754 | 0 |
| 121.2.166.51 | 2030216755 | 0 |
| 121.2.166.52 | 2030216756 | 0 |
| 121.2.166.53 | 2030216757 | 0 |
| 121.2.166.54 | 2030216758 | 0 |
| 121.2.166.55 | 2030216759 | 0 |
| 121.2.166.56 | 2030216760 | 0 |
| 121.2.166.57 | 2030216761 | 0 |
| 121.2.166.58 | 2030216762 | 0 |
| 121.2.166.59 | 2030216763 | 0 |
| 121.2.166.60 | 2030216764 | 0 |
| 121.2.166.61 | 2030216765 | 0 |
| 121.2.166.62 | 2030216766 | 0 |
| 121.2.166.63 | 2030216767 | 0 |
| 121.2.166.64 | 2030216768 | 0 |
| 121.2.166.65 | 2030216769 | 0 |
| 121.2.166.66 | 2030216770 | 0 |
| 121.2.166.67 | 2030216771 | 0 |
| 121.2.166.68 | 2030216772 | 0 |
| 121.2.166.69 | 2030216773 | 0 |
| 121.2.166.70 | 2030216774 | 0 |
| 121.2.166.71 | 2030216775 | 0 |
| 121.2.166.72 | 2030216776 | 0 |
| 121.2.166.73 | 2030216777 | 0 |
| 121.2.166.74 | 2030216778 | 0 |
| 121.2.166.75 | 2030216779 | 0 |
| 121.2.166.76 | 2030216780 | 0 |
| 121.2.166.77 | 2030216781 | 0 |
| 121.2.166.78 | 2030216782 | 0 |
| 121.2.166.79 | 2030216783 | 0 |
| 121.2.166.80 | 2030216784 | 0 |
| 121.2.166.81 | 2030216785 | 0 |
| 121.2.166.82 | 2030216786 | 0 |
| 121.2.166.83 | 2030216787 | 0 |
| 121.2.166.84 | 2030216788 | 0 |
| 121.2.166.85 | 2030216789 | 0 |