L'indirizzo IP 121.81.65 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 | 06/08/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | JP | Japan | - | Osaka | 34,6939 | 135,5022 | 2017-08-06 |
| MaxMind | JP | Japan | - | Hirakata | 34,8 | 135,6333 | 2017-08-06 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.81.65.0 | 2035368192 | 0 |
| 121.81.65.1 | 2035368193 | 0 |
| 121.81.65.2 | 2035368194 | 0 |
| 121.81.65.3 | 2035368195 | 0 |
| 121.81.65.4 | 2035368196 | 0 |
| 121.81.65.5 | 2035368197 | 0 |
| 121.81.65.6 | 2035368198 | 0 |
| 121.81.65.7 | 2035368199 | 0 |
| 121.81.65.8 | 2035368200 | 0 |
| 121.81.65.9 | 2035368201 | 0 |
| 121.81.65.10 | 2035368202 | 0 |
| 121.81.65.11 | 2035368203 | 0 |
| 121.81.65.12 | 2035368204 | 0 |
| 121.81.65.13 | 2035368205 | 0 |
| 121.81.65.14 | 2035368206 | 0 |
| 121.81.65.15 | 2035368207 | 0 |
| 121.81.65.16 | 2035368208 | 0 |
| 121.81.65.17 | 2035368209 | 0 |
| 121.81.65.18 | 2035368210 | 0 |
| 121.81.65.19 | 2035368211 | 0 |
| 121.81.65.20 | 2035368212 | 0 |
| 121.81.65.21 | 2035368213 | 0 |
| 121.81.65.22 | 2035368214 | 0 |
| 121.81.65.23 | 2035368215 | 0 |
| 121.81.65.24 | 2035368216 | 0 |
| 121.81.65.25 | 2035368217 | 0 |
| 121.81.65.26 | 2035368218 | 0 |
| 121.81.65.27 | 2035368219 | 0 |
| 121.81.65.28 | 2035368220 | 0 |
| 121.81.65.29 | 2035368221 | 0 |
| 121.81.65.30 | 2035368222 | 0 |
| 121.81.65.31 | 2035368223 | 0 |
| 121.81.65.32 | 2035368224 | 0 |
| 121.81.65.33 | 2035368225 | 0 |
| 121.81.65.34 | 2035368226 | 0 |
| 121.81.65.35 | 2035368227 | 0 |
| 121.81.65.36 | 2035368228 | 0 |
| 121.81.65.37 | 2035368229 | 0 |
| 121.81.65.38 | 2035368230 | 0 |
| 121.81.65.39 | 2035368231 | 0 |
| 121.81.65.40 | 2035368232 | 0 |
| 121.81.65.41 | 2035368233 | 0 |
| 121.81.65.42 | 2035368234 | 0 |
| 121.81.65.43 | 2035368235 | 0 |
| 121.81.65.44 | 2035368236 | 0 |
| 121.81.65.45 | 2035368237 | 0 |
| 121.81.65.46 | 2035368238 | 0 |
| 121.81.65.47 | 2035368239 | 0 |
| 121.81.65.48 | 2035368240 | 0 |
| 121.81.65.49 | 2035368241 | 0 |
| 121.81.65.50 | 2035368242 | 0 |
| 121.81.65.51 | 2035368243 | 0 |
| 121.81.65.52 | 2035368244 | 0 |
| 121.81.65.53 | 2035368245 | 0 |
| 121.81.65.54 | 2035368246 | 0 |
| 121.81.65.55 | 2035368247 | 0 |
| 121.81.65.56 | 2035368248 | 0 |
| 121.81.65.57 | 2035368249 | 0 |
| 121.81.65.58 | 2035368250 | 0 |
| 121.81.65.59 | 2035368251 | 0 |
| 121.81.65.60 | 2035368252 | 0 |
| 121.81.65.61 | 2035368253 | 0 |
| 121.81.65.62 | 2035368254 | 0 |
| 121.81.65.63 | 2035368255 | 0 |
| 121.81.65.64 | 2035368256 | 0 |
| 121.81.65.65 | 2035368257 | 0 |
| 121.81.65.66 | 2035368258 | 0 |
| 121.81.65.67 | 2035368259 | 0 |
| 121.81.65.68 | 2035368260 | 0 |
| 121.81.65.69 | 2035368261 | 0 |
| 121.81.65.70 | 2035368262 | 0 |
| 121.81.65.71 | 2035368263 | 0 |
| 121.81.65.72 | 2035368264 | 0 |
| 121.81.65.73 | 2035368265 | 0 |
| 121.81.65.74 | 2035368266 | 0 |
| 121.81.65.75 | 2035368267 | 0 |
| 121.81.65.76 | 2035368268 | 0 |
| 121.81.65.77 | 2035368269 | 0 |
| 121.81.65.78 | 2035368270 | 0 |
| 121.81.65.79 | 2035368271 | 0 |
| 121.81.65.80 | 2035368272 | 0 |
| 121.81.65.81 | 2035368273 | 0 |
| 121.81.65.82 | 2035368274 | 0 |
| 121.81.65.83 | 2035368275 | 0 |
| 121.81.65.84 | 2035368276 | 0 |
| 121.81.65.85 | 2035368277 | 0 |