L'indirizzo IP 121.83.87 è fornito da K-Opticom Corporation, che è di proprietà del CIDR (Classless Inter-Domain Routing) 121.80.0.0/14, IP tra 121.80.0.0 a 121.83.255.255 ). Il numero di sistema autonomo (ASN) è 17511.
| ASN | 17511 |
| IP inizia con | 121.80.0.0 |
| IP finale con | 121.83.255.255 |
| ASN Nome | K-Opticom Corporation |
| CDIR | 121.80.0.0/14 |
| IP numerico | |
| Registe | apnic |
| Ultimo aggiornamento | 13/10/2018 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | JP | Japan | - | Kyoto | 35,0117 | 135,7683 | 2018-10-13 |
| MaxMind | JP | Japan | - | Yao | 34,6167 | 135,6 | 2018-10-13 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.83.87.0 | 2035504896 | 0 |
| 121.83.87.1 | 2035504897 | 0 |
| 121.83.87.2 | 2035504898 | 0 |
| 121.83.87.3 | 2035504899 | 0 |
| 121.83.87.4 | 2035504900 | 0 |
| 121.83.87.5 | 2035504901 | 0 |
| 121.83.87.6 | 2035504902 | 0 |
| 121.83.87.7 | 2035504903 | 0 |
| 121.83.87.8 | 2035504904 | 0 |
| 121.83.87.9 | 2035504905 | 0 |
| 121.83.87.10 | 2035504906 | 0 |
| 121.83.87.11 | 2035504907 | 0 |
| 121.83.87.12 | 2035504908 | 0 |
| 121.83.87.13 | 2035504909 | 0 |
| 121.83.87.14 | 2035504910 | 0 |
| 121.83.87.15 | 2035504911 | 0 |
| 121.83.87.16 | 2035504912 | 0 |
| 121.83.87.17 | 2035504913 | 0 |
| 121.83.87.18 | 2035504914 | 0 |
| 121.83.87.19 | 2035504915 | 0 |
| 121.83.87.20 | 2035504916 | 0 |
| 121.83.87.21 | 2035504917 | 0 |
| 121.83.87.22 | 2035504918 | 0 |
| 121.83.87.23 | 2035504919 | 0 |
| 121.83.87.24 | 2035504920 | 0 |
| 121.83.87.25 | 2035504921 | 0 |
| 121.83.87.26 | 2035504922 | 0 |
| 121.83.87.27 | 2035504923 | 0 |
| 121.83.87.28 | 2035504924 | 0 |
| 121.83.87.29 | 2035504925 | 0 |
| 121.83.87.30 | 2035504926 | 0 |
| 121.83.87.31 | 2035504927 | 0 |
| 121.83.87.32 | 2035504928 | 0 |
| 121.83.87.33 | 2035504929 | 0 |
| 121.83.87.34 | 2035504930 | 0 |
| 121.83.87.35 | 2035504931 | 0 |
| 121.83.87.36 | 2035504932 | 0 |
| 121.83.87.37 | 2035504933 | 0 |
| 121.83.87.38 | 2035504934 | 0 |
| 121.83.87.39 | 2035504935 | 0 |
| 121.83.87.40 | 2035504936 | 0 |
| 121.83.87.41 | 2035504937 | 0 |
| 121.83.87.42 | 2035504938 | 0 |
| 121.83.87.43 | 2035504939 | 0 |
| 121.83.87.44 | 2035504940 | 0 |
| 121.83.87.45 | 2035504941 | 0 |
| 121.83.87.46 | 2035504942 | 0 |
| 121.83.87.47 | 2035504943 | 0 |
| 121.83.87.48 | 2035504944 | 0 |
| 121.83.87.49 | 2035504945 | 0 |
| 121.83.87.50 | 2035504946 | 0 |
| 121.83.87.51 | 2035504947 | 0 |
| 121.83.87.52 | 2035504948 | 0 |
| 121.83.87.53 | 2035504949 | 0 |
| 121.83.87.54 | 2035504950 | 0 |
| 121.83.87.55 | 2035504951 | 0 |
| 121.83.87.56 | 2035504952 | 0 |
| 121.83.87.57 | 2035504953 | 0 |
| 121.83.87.58 | 2035504954 | 0 |
| 121.83.87.59 | 2035504955 | 0 |
| 121.83.87.60 | 2035504956 | 0 |
| 121.83.87.61 | 2035504957 | 0 |
| 121.83.87.62 | 2035504958 | 0 |
| 121.83.87.63 | 2035504959 | 0 |
| 121.83.87.64 | 2035504960 | 0 |
| 121.83.87.65 | 2035504961 | 0 |
| 121.83.87.66 | 2035504962 | 0 |
| 121.83.87.67 | 2035504963 | 0 |
| 121.83.87.68 | 2035504964 | 0 |
| 121.83.87.69 | 2035504965 | 0 |
| 121.83.87.70 | 2035504966 | 0 |
| 121.83.87.71 | 2035504967 | 0 |
| 121.83.87.72 | 2035504968 | 0 |
| 121.83.87.73 | 2035504969 | 0 |
| 121.83.87.74 | 2035504970 | 0 |
| 121.83.87.75 | 2035504971 | 0 |
| 121.83.87.76 | 2035504972 | 0 |
| 121.83.87.77 | 2035504973 | 0 |
| 121.83.87.78 | 2035504974 | 0 |
| 121.83.87.79 | 2035504975 | 0 |
| 121.83.87.80 | 2035504976 | 0 |
| 121.83.87.81 | 2035504977 | 0 |
| 121.83.87.82 | 2035504978 | 0 |
| 121.83.87.83 | 2035504979 | 0 |
| 121.83.87.84 | 2035504980 | 0 |
| 121.83.87.85 | 2035504981 | 0 |