The IP address 21.78.19 is provided by China Education and Research Network Center, it's belong to the CDIR (Classless Inter-Domain Routing) 22.30.204.0/23 (range 22.30.204.0 to 22.30.205.255). The autonomous system number (ASN) is 4538.
| ASN | 4538 |
| IP starting by | 22.30.204.0 |
| IP ending by | 22.30.205.255 |
| ASN Name | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| Numerical IP | |
| Registry | |
| Last update | 19/08/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-08-19 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-08-19 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.78.19.0 | 357438208 | 0 |
| 21.78.19.1 | 357438209 | 0 |
| 21.78.19.2 | 357438210 | 0 |
| 21.78.19.3 | 357438211 | 0 |
| 21.78.19.4 | 357438212 | 0 |
| 21.78.19.5 | 357438213 | 0 |
| 21.78.19.6 | 357438214 | 0 |
| 21.78.19.7 | 357438215 | 0 |
| 21.78.19.8 | 357438216 | 0 |
| 21.78.19.9 | 357438217 | 0 |
| 21.78.19.10 | 357438218 | 0 |
| 21.78.19.11 | 357438219 | 0 |
| 21.78.19.12 | 357438220 | 0 |
| 21.78.19.13 | 357438221 | 0 |
| 21.78.19.14 | 357438222 | 0 |
| 21.78.19.15 | 357438223 | 0 |
| 21.78.19.16 | 357438224 | 0 |
| 21.78.19.17 | 357438225 | 0 |
| 21.78.19.18 | 357438226 | 0 |
| 21.78.19.19 | 357438227 | 0 |
| 21.78.19.20 | 357438228 | 0 |
| 21.78.19.21 | 357438229 | 0 |
| 21.78.19.22 | 357438230 | 0 |
| 21.78.19.23 | 357438231 | 0 |
| 21.78.19.24 | 357438232 | 0 |
| 21.78.19.25 | 357438233 | 0 |
| 21.78.19.26 | 357438234 | 0 |
| 21.78.19.27 | 357438235 | 0 |
| 21.78.19.28 | 357438236 | 0 |
| 21.78.19.29 | 357438237 | 0 |
| 21.78.19.30 | 357438238 | 0 |
| 21.78.19.31 | 357438239 | 0 |
| 21.78.19.32 | 357438240 | 0 |
| 21.78.19.33 | 357438241 | 0 |
| 21.78.19.34 | 357438242 | 0 |
| 21.78.19.35 | 357438243 | 0 |
| 21.78.19.36 | 357438244 | 0 |
| 21.78.19.37 | 357438245 | 0 |
| 21.78.19.38 | 357438246 | 0 |
| 21.78.19.39 | 357438247 | 0 |
| 21.78.19.40 | 357438248 | 0 |
| 21.78.19.41 | 357438249 | 0 |
| 21.78.19.42 | 357438250 | 0 |
| 21.78.19.43 | 357438251 | 0 |
| 21.78.19.44 | 357438252 | 0 |
| 21.78.19.45 | 357438253 | 0 |
| 21.78.19.46 | 357438254 | 0 |
| 21.78.19.47 | 357438255 | 0 |
| 21.78.19.48 | 357438256 | 0 |
| 21.78.19.49 | 357438257 | 0 |
| 21.78.19.50 | 357438258 | 0 |
| 21.78.19.51 | 357438259 | 0 |
| 21.78.19.52 | 357438260 | 0 |
| 21.78.19.53 | 357438261 | 0 |
| 21.78.19.54 | 357438262 | 0 |
| 21.78.19.55 | 357438263 | 0 |
| 21.78.19.56 | 357438264 | 0 |
| 21.78.19.57 | 357438265 | 0 |
| 21.78.19.58 | 357438266 | 0 |
| 21.78.19.59 | 357438267 | 0 |
| 21.78.19.60 | 357438268 | 0 |
| 21.78.19.61 | 357438269 | 0 |
| 21.78.19.62 | 357438270 | 0 |
| 21.78.19.63 | 357438271 | 0 |
| 21.78.19.64 | 357438272 | 0 |
| 21.78.19.65 | 357438273 | 0 |
| 21.78.19.66 | 357438274 | 0 |
| 21.78.19.67 | 357438275 | 0 |
| 21.78.19.68 | 357438276 | 0 |
| 21.78.19.69 | 357438277 | 0 |
| 21.78.19.70 | 357438278 | 0 |
| 21.78.19.71 | 357438279 | 0 |
| 21.78.19.72 | 357438280 | 0 |
| 21.78.19.73 | 357438281 | 0 |
| 21.78.19.74 | 357438282 | 0 |
| 21.78.19.75 | 357438283 | 0 |
| 21.78.19.76 | 357438284 | 0 |
| 21.78.19.77 | 357438285 | 0 |
| 21.78.19.78 | 357438286 | 0 |
| 21.78.19.79 | 357438287 | 0 |
| 21.78.19.80 | 357438288 | 0 |
| 21.78.19.81 | 357438289 | 0 |
| 21.78.19.82 | 357438290 | 0 |
| 21.78.19.83 | 357438291 | 0 |
| 21.78.19.84 | 357438292 | 0 |
| 21.78.19.85 | 357438293 | 0 |