L'indirizzo IP 121.81.6 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 | 30/07/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | JP | Japan | - | Wakayama | 34,233 | 135,167 | 2017-07-29 |
| MaxMind | JP | Japan | - | Kyoto | 35,0214 | 135,7556 | 2017-07-29 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.81.6.0 | 2035353088 | 0 |
| 121.81.6.1 | 2035353089 | 0 |
| 121.81.6.2 | 2035353090 | 0 |
| 121.81.6.3 | 2035353091 | 0 |
| 121.81.6.4 | 2035353092 | 0 |
| 121.81.6.5 | 2035353093 | 0 |
| 121.81.6.6 | 2035353094 | 0 |
| 121.81.6.7 | 2035353095 | 0 |
| 121.81.6.8 | 2035353096 | 0 |
| 121.81.6.9 | 2035353097 | 0 |
| 121.81.6.10 | 2035353098 | 0 |
| 121.81.6.11 | 2035353099 | 0 |
| 121.81.6.12 | 2035353100 | 0 |
| 121.81.6.13 | 2035353101 | 0 |
| 121.81.6.14 | 2035353102 | 0 |
| 121.81.6.15 | 2035353103 | 0 |
| 121.81.6.16 | 2035353104 | 0 |
| 121.81.6.17 | 2035353105 | 0 |
| 121.81.6.18 | 2035353106 | 0 |
| 121.81.6.19 | 2035353107 | 0 |
| 121.81.6.20 | 2035353108 | 0 |
| 121.81.6.21 | 2035353109 | 0 |
| 121.81.6.22 | 2035353110 | 0 |
| 121.81.6.23 | 2035353111 | 0 |
| 121.81.6.24 | 2035353112 | 0 |
| 121.81.6.25 | 2035353113 | 0 |
| 121.81.6.26 | 2035353114 | 0 |
| 121.81.6.27 | 2035353115 | 0 |
| 121.81.6.28 | 2035353116 | 0 |
| 121.81.6.29 | 2035353117 | 0 |
| 121.81.6.30 | 2035353118 | 0 |
| 121.81.6.31 | 2035353119 | 0 |
| 121.81.6.32 | 2035353120 | 0 |
| 121.81.6.33 | 2035353121 | 0 |
| 121.81.6.34 | 2035353122 | 0 |
| 121.81.6.35 | 2035353123 | 0 |
| 121.81.6.36 | 2035353124 | 0 |
| 121.81.6.37 | 2035353125 | 0 |
| 121.81.6.38 | 2035353126 | 0 |
| 121.81.6.39 | 2035353127 | 0 |
| 121.81.6.40 | 2035353128 | 0 |
| 121.81.6.41 | 2035353129 | 0 |
| 121.81.6.42 | 2035353130 | 0 |
| 121.81.6.43 | 2035353131 | 0 |
| 121.81.6.44 | 2035353132 | 0 |
| 121.81.6.45 | 2035353133 | 0 |
| 121.81.6.46 | 2035353134 | 0 |
| 121.81.6.47 | 2035353135 | 0 |
| 121.81.6.48 | 2035353136 | 0 |
| 121.81.6.49 | 2035353137 | 0 |
| 121.81.6.50 | 2035353138 | 0 |
| 121.81.6.51 | 2035353139 | 0 |
| 121.81.6.52 | 2035353140 | 0 |
| 121.81.6.53 | 2035353141 | 0 |
| 121.81.6.54 | 2035353142 | 0 |
| 121.81.6.55 | 2035353143 | 0 |
| 121.81.6.56 | 2035353144 | 0 |
| 121.81.6.57 | 2035353145 | 0 |
| 121.81.6.58 | 2035353146 | 0 |
| 121.81.6.59 | 2035353147 | 0 |
| 121.81.6.60 | 2035353148 | 0 |
| 121.81.6.61 | 2035353149 | 0 |
| 121.81.6.62 | 2035353150 | 0 |
| 121.81.6.63 | 2035353151 | 0 |
| 121.81.6.64 | 2035353152 | 0 |
| 121.81.6.65 | 2035353153 | 0 |
| 121.81.6.66 | 2035353154 | 0 |
| 121.81.6.67 | 2035353155 | 0 |
| 121.81.6.68 | 2035353156 | 0 |
| 121.81.6.69 | 2035353157 | 0 |
| 121.81.6.70 | 2035353158 | 0 |
| 121.81.6.71 | 2035353159 | 0 |
| 121.81.6.72 | 2035353160 | 0 |
| 121.81.6.73 | 2035353161 | 0 |
| 121.81.6.74 | 2035353162 | 0 |
| 121.81.6.75 | 2035353163 | 0 |
| 121.81.6.76 | 2035353164 | 0 |
| 121.81.6.77 | 2035353165 | 0 |
| 121.81.6.78 | 2035353166 | 0 |
| 121.81.6.79 | 2035353167 | 0 |
| 121.81.6.80 | 2035353168 | 0 |
| 121.81.6.81 | 2035353169 | 0 |
| 121.81.6.82 | 2035353170 | 0 |
| 121.81.6.83 | 2035353171 | 0 |
| 121.81.6.84 | 2035353172 | 0 |
| 121.81.6.85 | 2035353173 | 0 |
| IP | Numerical IP | DNS |
| 121.81.6.86 | 2035353174 | 0 |
| 121.81.6.87 | 2035353175 | 0 |
| 121.81.6.88 | 2035353176 | 0 |
| 121.81.6.89 | 2035353177 | 0 |
| 121.81.6.90 | 2035353178 | 0 |
| 121.81.6.91 | 2035353179 | 0 |
| 121.81.6.92 | 2035353180 | 0 |
| 121.81.6.93 | 2035353181 | 0 |
| 121.81.6.94 | 2035353182 | 0 |
| 121.81.6.95 | 2035353183 | 0 |
| 121.81.6.96 | 2035353184 | 0 |
| 121.81.6.97 | 2035353185 | 0 |
| 121.81.6.98 | 2035353186 | 0 |
| 121.81.6.99 | 2035353187 | 0 |
| 121.81.6.100 | 2035353188 | 0 |
| 121.81.6.101 | 2035353189 | 0 |
| 121.81.6.102 | 2035353190 | 0 |
| 121.81.6.103 | 2035353191 | 0 |
| 121.81.6.104 | 2035353192 | 0 |
| 121.81.6.105 | 2035353193 | 0 |
| 121.81.6.106 | 2035353194 | 0 |
| 121.81.6.107 | 2035353195 | 0 |
| 121.81.6.108 | 2035353196 | 0 |
| 121.81.6.109 | 2035353197 | 0 |
| 121.81.6.110 | 2035353198 | 0 |
| 121.81.6.111 | 2035353199 | 0 |
| 121.81.6.112 | 2035353200 | 0 |
| 121.81.6.113 | 2035353201 | 0 |
| 121.81.6.114 | 2035353202 | 0 |
| 121.81.6.115 | 2035353203 | 0 |
| 121.81.6.116 | 2035353204 | 0 |
| 121.81.6.117 | 2035353205 | 0 |
| 121.81.6.118 | 2035353206 | 0 |
| 121.81.6.119 | 2035353207 | 0 |
| 121.81.6.120 | 2035353208 | 0 |
| 121.81.6.121 | 2035353209 | 0 |
| 121.81.6.122 | 2035353210 | 0 |
| 121.81.6.123 | 2035353211 | 0 |
| 121.81.6.124 | 2035353212 | 0 |
| 121.81.6.125 | 2035353213 | 0 |
| 121.81.6.126 | 2035353214 | 0 |
| 121.81.6.127 | 2035353215 | 0 |
| 121.81.6.128 | 2035353216 | 0 |
| 121.81.6.129 | 2035353217 | 0 |
| 121.81.6.130 | 2035353218 | 0 |
| 121.81.6.131 | 2035353219 | 0 |
| 121.81.6.132 | 2035353220 | 0 |
| 121.81.6.133 | 2035353221 | 0 |
| 121.81.6.134 | 2035353222 | 0 |
| 121.81.6.135 | 2035353223 | 0 |
| 121.81.6.136 | 2035353224 | 0 |
| 121.81.6.137 | 2035353225 | 0 |
| 121.81.6.138 | 2035353226 | 0 |
| 121.81.6.139 | 2035353227 | 0 |
| 121.81.6.140 | 2035353228 | 0 |
| 121.81.6.141 | 2035353229 | 0 |
| 121.81.6.142 | 2035353230 | 0 |
| 121.81.6.143 | 2035353231 | 0 |
| 121.81.6.144 | 2035353232 | 0 |
| 121.81.6.145 | 2035353233 | 0 |
| 121.81.6.146 | 2035353234 | 0 |
| 121.81.6.147 | 2035353235 | 0 |
| 121.81.6.148 | 2035353236 | 0 |
| 121.81.6.149 | 2035353237 | 0 |
| 121.81.6.150 | 2035353238 | 0 |
| 121.81.6.151 | 2035353239 | 0 |
| 121.81.6.152 | 2035353240 | 0 |
| 121.81.6.153 | 2035353241 | 0 |
| 121.81.6.154 | 2035353242 | 0 |
| 121.81.6.155 | 2035353243 | 0 |
| 121.81.6.156 | 2035353244 | 0 |
| 121.81.6.157 | 2035353245 | 0 |
| 121.81.6.158 | 2035353246 | 0 |
| 121.81.6.159 | 2035353247 | 0 |
| 121.81.6.160 | 2035353248 | 0 |
| 121.81.6.161 | 2035353249 | 0 |
| 121.81.6.162 | 2035353250 | 0 |
| 121.81.6.163 | 2035353251 | 0 |
| 121.81.6.164 | 2035353252 | 0 |
| 121.81.6.165 | 2035353253 | 0 |
| 121.81.6.166 | 2035353254 | 0 |
| 121.81.6.167 | 2035353255 | 0 |
| 121.81.6.168 | 2035353256 | 0 |
| 121.81.6.169 | 2035353257 | 0 |
| 121.81.6.170 | 2035353258 | 0 |
| 121.81.6.171 | 2035353259 | 0 |
| IP | Numerical IP | DNS |
| 121.81.6.172 | 2035353260 | 0 |
| 121.81.6.173 | 2035353261 | 0 |
| 121.81.6.174 | 2035353262 | 0 |
| 121.81.6.175 | 2035353263 | 0 |
| 121.81.6.176 | 2035353264 | 0 |
| 121.81.6.177 | 2035353265 | 0 |
| 121.81.6.178 | 2035353266 | 0 |
| 121.81.6.179 | 2035353267 | 0 |
| 121.81.6.180 | 2035353268 | 0 |
| 121.81.6.181 | 2035353269 | 0 |
| 121.81.6.182 | 2035353270 | 0 |
| 121.81.6.183 | 2035353271 | 0 |
| 121.81.6.184 | 2035353272 | 0 |
| 121.81.6.185 | 2035353273 | 0 |
| 121.81.6.186 | 2035353274 | 0 |
| 121.81.6.187 | 2035353275 | 0 |
| 121.81.6.188 | 2035353276 | 0 |
| 121.81.6.189 | 2035353277 | 0 |
| 121.81.6.190 | 2035353278 | 0 |
| 121.81.6.191 | 2035353279 | 0 |
| 121.81.6.192 | 2035353280 | 0 |
| 121.81.6.193 | 2035353281 | 0 |
| 121.81.6.194 | 2035353282 | 0 |
| 121.81.6.195 | 2035353283 | 0 |
| 121.81.6.196 | 2035353284 | 0 |
| 121.81.6.197 | 2035353285 | 0 |
| 121.81.6.198 | 2035353286 | 0 |
| 121.81.6.199 | 2035353287 | 0 |
| 121.81.6.200 | 2035353288 | 0 |
| 121.81.6.201 | 2035353289 | 0 |
| 121.81.6.202 | 2035353290 | 0 |
| 121.81.6.203 | 2035353291 | 0 |
| 121.81.6.204 | 2035353292 | 0 |
| 121.81.6.205 | 2035353293 | 0 |
| 121.81.6.206 | 2035353294 | 0 |
| 121.81.6.207 | 2035353295 | 0 |
| 121.81.6.208 | 2035353296 | 0 |
| 121.81.6.209 | 2035353297 | 0 |
| 121.81.6.210 | 2035353298 | 0 |
| 121.81.6.211 | 2035353299 | 0 |
| 121.81.6.212 | 2035353300 | 0 |
| 121.81.6.213 | 2035353301 | 0 |
| 121.81.6.214 | 2035353302 | 0 |
| 121.81.6.215 | 2035353303 | 0 |
| 121.81.6.216 | 2035353304 | 0 |
| 121.81.6.217 | 2035353305 | 0 |
| 121.81.6.218 | 2035353306 | 0 |
| 121.81.6.219 | 2035353307 | 0 |
| 121.81.6.220 | 2035353308 | 0 |
| 121.81.6.221 | 2035353309 | 0 |
| 121.81.6.222 | 2035353310 | 0 |
| 121.81.6.223 | 2035353311 | 0 |
| 121.81.6.224 | 2035353312 | 0 |
| 121.81.6.225 | 2035353313 | 0 |
| 121.81.6.226 | 2035353314 | 0 |
| 121.81.6.227 | 2035353315 | 0 |
| 121.81.6.228 | 2035353316 | 0 |
| 121.81.6.229 | 2035353317 | 0 |
| 121.81.6.230 | 2035353318 | 0 |
| 121.81.6.231 | 2035353319 | 0 |
| 121.81.6.232 | 2035353320 | 0 |
| 121.81.6.233 | 2035353321 | 0 |
| 121.81.6.234 | 2035353322 | 0 |
| 121.81.6.235 | 2035353323 | 0 |
| 121.81.6.236 | 2035353324 | 0 |
| 121.81.6.237 | 2035353325 | 0 |
| 121.81.6.238 | 2035353326 | 0 |
| 121.81.6.239 | 2035353327 | 0 |
| 121.81.6.240 | 2035353328 | 0 |
| 121.81.6.241 | 2035353329 | 0 |
| 121.81.6.242 | 2035353330 | 0 |
| 121.81.6.243 | 2035353331 | 0 |
| 121.81.6.244 | 2035353332 | 0 |
| 121.81.6.245 | 2035353333 | 0 |
| 121.81.6.246 | 2035353334 | 0 |
| 121.81.6.247 | 2035353335 | 0 |
| 121.81.6.248 | 2035353336 | 0 |
| 121.81.6.249 | 2035353337 | 0 |
| 121.81.6.250 | 2035353338 | 0 |
| 121.81.6.251 | 2035353339 | 0 |
| 121.81.6.252 | 2035353340 | 0 |
| 121.81.6.253 | 2035353341 | 0 |
| 121.81.6.254 | 2035353342 | 0 |
| 121.81.6.255 | 2035353343 | 0 |