La dirección IP 121.81.56 es proporcionada por K-Opticom Corporation, que es propiedad de la CIDR (Classless Inter-Domain Routing) 121.80.0.0/14, IP entre 121.80.0.0 a 121.83.255.255 ). El número de sistema autónomo (ASN) es 17511.
| ASN | 17511 |
| IP que comienzan con | 121.80.0.0 |
| IP que termina con | 121.83.255.255 |
| ASN Nombre | K-Opticom Corporation |
| CDIR | 121.80.0.0/14 |
| IP numérica | |
| Registe | apnic |
| Última actualización | 13/07/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | JP | Japón | - | Kyoto | 35,0117 | 135,7683 | 2017-07-03 |
| MaxMind | JP | Japón | - | Osaka | 34,6864 | 135,52 | 2017-07-03 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.81.56.0 | 2035365888 | 0 |
| 121.81.56.1 | 2035365889 | 0 |
| 121.81.56.2 | 2035365890 | 0 |
| 121.81.56.3 | 2035365891 | 0 |
| 121.81.56.4 | 2035365892 | 0 |
| 121.81.56.5 | 2035365893 | 0 |
| 121.81.56.6 | 2035365894 | 0 |
| 121.81.56.7 | 2035365895 | 0 |
| 121.81.56.8 | 2035365896 | 0 |
| 121.81.56.9 | 2035365897 | 0 |
| 121.81.56.10 | 2035365898 | 0 |
| 121.81.56.11 | 2035365899 | 0 |
| 121.81.56.12 | 2035365900 | 0 |
| 121.81.56.13 | 2035365901 | 0 |
| 121.81.56.14 | 2035365902 | 0 |
| 121.81.56.15 | 2035365903 | 0 |
| 121.81.56.16 | 2035365904 | 0 |
| 121.81.56.17 | 2035365905 | 0 |
| 121.81.56.18 | 2035365906 | 0 |
| 121.81.56.19 | 2035365907 | 0 |
| 121.81.56.20 | 2035365908 | 0 |
| 121.81.56.21 | 2035365909 | 0 |
| 121.81.56.22 | 2035365910 | 0 |
| 121.81.56.23 | 2035365911 | 0 |
| 121.81.56.24 | 2035365912 | 0 |
| 121.81.56.25 | 2035365913 | 0 |
| 121.81.56.26 | 2035365914 | 0 |
| 121.81.56.27 | 2035365915 | 0 |
| 121.81.56.28 | 2035365916 | 0 |
| 121.81.56.29 | 2035365917 | 0 |
| 121.81.56.30 | 2035365918 | 0 |
| 121.81.56.31 | 2035365919 | 0 |
| 121.81.56.32 | 2035365920 | 0 |
| 121.81.56.33 | 2035365921 | 0 |
| 121.81.56.34 | 2035365922 | 0 |
| 121.81.56.35 | 2035365923 | 0 |
| 121.81.56.36 | 2035365924 | 0 |
| 121.81.56.37 | 2035365925 | 0 |
| 121.81.56.38 | 2035365926 | 0 |
| 121.81.56.39 | 2035365927 | 0 |
| 121.81.56.40 | 2035365928 | 0 |
| 121.81.56.41 | 2035365929 | 0 |
| 121.81.56.42 | 2035365930 | 0 |
| 121.81.56.43 | 2035365931 | 0 |
| 121.81.56.44 | 2035365932 | 0 |
| 121.81.56.45 | 2035365933 | 0 |
| 121.81.56.46 | 2035365934 | 0 |
| 121.81.56.47 | 2035365935 | 0 |
| 121.81.56.48 | 2035365936 | 0 |
| 121.81.56.49 | 2035365937 | 0 |
| 121.81.56.50 | 2035365938 | 0 |
| 121.81.56.51 | 2035365939 | 0 |
| 121.81.56.52 | 2035365940 | 0 |
| 121.81.56.53 | 2035365941 | 0 |
| 121.81.56.54 | 2035365942 | 0 |
| 121.81.56.55 | 2035365943 | 0 |
| 121.81.56.56 | 2035365944 | 0 |
| 121.81.56.57 | 2035365945 | 0 |
| 121.81.56.58 | 2035365946 | 0 |
| 121.81.56.59 | 2035365947 | 0 |
| 121.81.56.60 | 2035365948 | 0 |
| 121.81.56.61 | 2035365949 | 0 |
| 121.81.56.62 | 2035365950 | 0 |
| 121.81.56.63 | 2035365951 | 0 |
| 121.81.56.64 | 2035365952 | 0 |
| 121.81.56.65 | 2035365953 | 0 |
| 121.81.56.66 | 2035365954 | 0 |
| 121.81.56.67 | 2035365955 | 0 |
| 121.81.56.68 | 2035365956 | 0 |
| 121.81.56.69 | 2035365957 | 0 |
| 121.81.56.70 | 2035365958 | 0 |
| 121.81.56.71 | 2035365959 | 0 |
| 121.81.56.72 | 2035365960 | 0 |
| 121.81.56.73 | 2035365961 | 0 |
| 121.81.56.74 | 2035365962 | 0 |
| 121.81.56.75 | 2035365963 | 0 |
| 121.81.56.76 | 2035365964 | 0 |
| 121.81.56.77 | 2035365965 | 0 |
| 121.81.56.78 | 2035365966 | 0 |
| 121.81.56.79 | 2035365967 | 0 |
| 121.81.56.80 | 2035365968 | 0 |
| 121.81.56.81 | 2035365969 | 0 |
| 121.81.56.82 | 2035365970 | 0 |
| 121.81.56.83 | 2035365971 | 0 |
| 121.81.56.84 | 2035365972 | 0 |
| 121.81.56.85 | 2035365973 | 0 |