Les adresses IP débutant par 121.84.84 sont fournies par K-Opticom Corporation, elles appartiennent au CIDR (Classless Inter-Domain Routing) 121.84.0.0/14, le bloc IP comprant les adresses de 121.84.0.0 à 121.87.255.255). Le numéro de système autonome (ASN) est 17511.
| ASN | 17511 |
| IP commençant par | 121.84.0.0 |
| IP se terminant par | 121.87.255.255 |
| Nom ASN | K-Opticom Corporation |
| CDIR | 121.84.0.0/14 |
| IP numérique | |
| Registe | apnic |
| Dernière mise à jour | 20/12/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | JP | Japon | - | Himeji | 34,8167 | 134,7 | 2017-12-20 |
| MaxMind | JP | Japon | - | Osaka | 34,6864 | 135,52 | 2017-12-20 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.84.84.0 | 2035569664 | 0 |
| 121.84.84.1 | 2035569665 | 0 |
| 121.84.84.2 | 2035569666 | 0 |
| 121.84.84.3 | 2035569667 | 0 |
| 121.84.84.4 | 2035569668 | 0 |
| 121.84.84.5 | 2035569669 | 0 |
| 121.84.84.6 | 2035569670 | 0 |
| 121.84.84.7 | 2035569671 | 0 |
| 121.84.84.8 | 2035569672 | 0 |
| 121.84.84.9 | 2035569673 | 0 |
| 121.84.84.10 | 2035569674 | 0 |
| 121.84.84.11 | 2035569675 | 0 |
| 121.84.84.12 | 2035569676 | 0 |
| 121.84.84.13 | 2035569677 | 0 |
| 121.84.84.14 | 2035569678 | 0 |
| 121.84.84.15 | 2035569679 | 0 |
| 121.84.84.16 | 2035569680 | 0 |
| 121.84.84.17 | 2035569681 | 0 |
| 121.84.84.18 | 2035569682 | 0 |
| 121.84.84.19 | 2035569683 | 0 |
| 121.84.84.20 | 2035569684 | 0 |
| 121.84.84.21 | 2035569685 | 0 |
| 121.84.84.22 | 2035569686 | 0 |
| 121.84.84.23 | 2035569687 | 0 |
| 121.84.84.24 | 2035569688 | 0 |
| 121.84.84.25 | 2035569689 | 0 |
| 121.84.84.26 | 2035569690 | 0 |
| 121.84.84.27 | 2035569691 | 0 |
| 121.84.84.28 | 2035569692 | 0 |
| 121.84.84.29 | 2035569693 | 0 |
| 121.84.84.30 | 2035569694 | 0 |
| 121.84.84.31 | 2035569695 | 0 |
| 121.84.84.32 | 2035569696 | 0 |
| 121.84.84.33 | 2035569697 | 0 |
| 121.84.84.34 | 2035569698 | 0 |
| 121.84.84.35 | 2035569699 | 0 |
| 121.84.84.36 | 2035569700 | 0 |
| 121.84.84.37 | 2035569701 | 0 |
| 121.84.84.38 | 2035569702 | 0 |
| 121.84.84.39 | 2035569703 | 0 |
| 121.84.84.40 | 2035569704 | 0 |
| 121.84.84.41 | 2035569705 | 0 |
| 121.84.84.42 | 2035569706 | 0 |
| 121.84.84.43 | 2035569707 | 0 |
| 121.84.84.44 | 2035569708 | 0 |
| 121.84.84.45 | 2035569709 | 0 |
| 121.84.84.46 | 2035569710 | 0 |
| 121.84.84.47 | 2035569711 | 0 |
| 121.84.84.48 | 2035569712 | 0 |
| 121.84.84.49 | 2035569713 | 0 |
| 121.84.84.50 | 2035569714 | 0 |
| 121.84.84.51 | 2035569715 | 0 |
| 121.84.84.52 | 2035569716 | 0 |
| 121.84.84.53 | 2035569717 | 0 |
| 121.84.84.54 | 2035569718 | 0 |
| 121.84.84.55 | 2035569719 | 0 |
| 121.84.84.56 | 2035569720 | 0 |
| 121.84.84.57 | 2035569721 | 0 |
| 121.84.84.58 | 2035569722 | 0 |
| 121.84.84.59 | 2035569723 | 0 |
| 121.84.84.60 | 2035569724 | 0 |
| 121.84.84.61 | 2035569725 | 0 |
| 121.84.84.62 | 2035569726 | 0 |
| 121.84.84.63 | 2035569727 | 0 |
| 121.84.84.64 | 2035569728 | 0 |
| 121.84.84.65 | 2035569729 | 0 |
| 121.84.84.66 | 2035569730 | 0 |
| 121.84.84.67 | 2035569731 | 0 |
| 121.84.84.68 | 2035569732 | 0 |
| 121.84.84.69 | 2035569733 | 0 |
| 121.84.84.70 | 2035569734 | 0 |
| 121.84.84.71 | 2035569735 | 0 |
| 121.84.84.72 | 2035569736 | 0 |
| 121.84.84.73 | 2035569737 | 0 |
| 121.84.84.74 | 2035569738 | 0 |
| 121.84.84.75 | 2035569739 | 0 |
| 121.84.84.76 | 2035569740 | 0 |
| 121.84.84.77 | 2035569741 | 0 |
| 121.84.84.78 | 2035569742 | 0 |
| 121.84.84.79 | 2035569743 | 0 |
| 121.84.84.80 | 2035569744 | 0 |
| 121.84.84.81 | 2035569745 | 0 |
| 121.84.84.82 | 2035569746 | 0 |
| 121.84.84.83 | 2035569747 | 0 |
| 121.84.84.84 | 2035569748 | 0 |
| 121.84.84.85 | 2035569749 | 0 |