L'indirizzo IP 121.3.243 è fornito da So-net Entertainment Corporation, che è di proprietà del CIDR (Classless Inter-Domain Routing) 121.2.0.0/15, IP tra 121.2.0.0 a 121.3.255.255 ). Il numero di sistema autonomo (ASN) è 2527.
| ASN | 2527 |
| IP inizia con | 121.2.0.0 |
| IP finale con | 121.3.255.255 |
| ASN Nome | So-net Entertainment Corporation |
| CDIR | 121.2.0.0/15 |
| IP numerico | |
| Registe | apnic |
| Ultimo aggiornamento | 11/09/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | JP | Japan | - | Gifu | 35,417 | 136,767 | 2017-09-11 |
| MaxMind | JP | Japan | - | Chiba | 35,6047 | 140,1233 | 2017-09-11 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.3.243.0 | 2030301952 | 0 |
| 121.3.243.1 | 2030301953 | 0 |
| 121.3.243.2 | 2030301954 | 0 |
| 121.3.243.3 | 2030301955 | 0 |
| 121.3.243.4 | 2030301956 | 0 |
| 121.3.243.5 | 2030301957 | 0 |
| 121.3.243.6 | 2030301958 | 0 |
| 121.3.243.7 | 2030301959 | 0 |
| 121.3.243.8 | 2030301960 | 0 |
| 121.3.243.9 | 2030301961 | 0 |
| 121.3.243.10 | 2030301962 | 0 |
| 121.3.243.11 | 2030301963 | 0 |
| 121.3.243.12 | 2030301964 | 0 |
| 121.3.243.13 | 2030301965 | 0 |
| 121.3.243.14 | 2030301966 | 0 |
| 121.3.243.15 | 2030301967 | 0 |
| 121.3.243.16 | 2030301968 | 0 |
| 121.3.243.17 | 2030301969 | 0 |
| 121.3.243.18 | 2030301970 | 0 |
| 121.3.243.19 | 2030301971 | 0 |
| 121.3.243.20 | 2030301972 | 0 |
| 121.3.243.21 | 2030301973 | 0 |
| 121.3.243.22 | 2030301974 | 0 |
| 121.3.243.23 | 2030301975 | 0 |
| 121.3.243.24 | 2030301976 | 0 |
| 121.3.243.25 | 2030301977 | 0 |
| 121.3.243.26 | 2030301978 | 0 |
| 121.3.243.27 | 2030301979 | 0 |
| 121.3.243.28 | 2030301980 | 0 |
| 121.3.243.29 | 2030301981 | 0 |
| 121.3.243.30 | 2030301982 | 0 |
| 121.3.243.31 | 2030301983 | 0 |
| 121.3.243.32 | 2030301984 | 0 |
| 121.3.243.33 | 2030301985 | 0 |
| 121.3.243.34 | 2030301986 | 0 |
| 121.3.243.35 | 2030301987 | 0 |
| 121.3.243.36 | 2030301988 | 0 |
| 121.3.243.37 | 2030301989 | 0 |
| 121.3.243.38 | 2030301990 | 0 |
| 121.3.243.39 | 2030301991 | 0 |
| 121.3.243.40 | 2030301992 | 0 |
| 121.3.243.41 | 2030301993 | 0 |
| 121.3.243.42 | 2030301994 | 0 |
| 121.3.243.43 | 2030301995 | 0 |
| 121.3.243.44 | 2030301996 | 0 |
| 121.3.243.45 | 2030301997 | 0 |
| 121.3.243.46 | 2030301998 | 0 |
| 121.3.243.47 | 2030301999 | 0 |
| 121.3.243.48 | 2030302000 | 0 |
| 121.3.243.49 | 2030302001 | 0 |
| 121.3.243.50 | 2030302002 | 0 |
| 121.3.243.51 | 2030302003 | 0 |
| 121.3.243.52 | 2030302004 | 0 |
| 121.3.243.53 | 2030302005 | 0 |
| 121.3.243.54 | 2030302006 | 0 |
| 121.3.243.55 | 2030302007 | 0 |
| 121.3.243.56 | 2030302008 | 0 |
| 121.3.243.57 | 2030302009 | 0 |
| 121.3.243.58 | 2030302010 | 0 |
| 121.3.243.59 | 2030302011 | 0 |
| 121.3.243.60 | 2030302012 | 0 |
| 121.3.243.61 | 2030302013 | 0 |
| 121.3.243.62 | 2030302014 | 0 |
| 121.3.243.63 | 2030302015 | 0 |
| 121.3.243.64 | 2030302016 | 0 |
| 121.3.243.65 | 2030302017 | 0 |
| 121.3.243.66 | 2030302018 | 0 |
| 121.3.243.67 | 2030302019 | 0 |
| 121.3.243.68 | 2030302020 | 0 |
| 121.3.243.69 | 2030302021 | 0 |
| 121.3.243.70 | 2030302022 | 0 |
| 121.3.243.71 | 2030302023 | 0 |
| 121.3.243.72 | 2030302024 | 0 |
| 121.3.243.73 | 2030302025 | 0 |
| 121.3.243.74 | 2030302026 | 0 |
| 121.3.243.75 | 2030302027 | 0 |
| 121.3.243.76 | 2030302028 | 0 |
| 121.3.243.77 | 2030302029 | 0 |
| 121.3.243.78 | 2030302030 | 0 |
| 121.3.243.79 | 2030302031 | 0 |
| 121.3.243.80 | 2030302032 | 0 |
| 121.3.243.81 | 2030302033 | 0 |
| 121.3.243.82 | 2030302034 | 0 |
| 121.3.243.83 | 2030302035 | 0 |
| 121.3.243.84 | 2030302036 | 0 |
| 121.3.243.85 | 2030302037 | 0 |