The IP address 21.78.31 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 | 09/08/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-08-09 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-08-09 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.78.31.0 | 357441280 | 0 |
| 21.78.31.1 | 357441281 | 0 |
| 21.78.31.2 | 357441282 | 0 |
| 21.78.31.3 | 357441283 | 0 |
| 21.78.31.4 | 357441284 | 0 |
| 21.78.31.5 | 357441285 | 0 |
| 21.78.31.6 | 357441286 | 0 |
| 21.78.31.7 | 357441287 | 0 |
| 21.78.31.8 | 357441288 | 0 |
| 21.78.31.9 | 357441289 | 0 |
| 21.78.31.10 | 357441290 | 0 |
| 21.78.31.11 | 357441291 | 0 |
| 21.78.31.12 | 357441292 | 0 |
| 21.78.31.13 | 357441293 | 0 |
| 21.78.31.14 | 357441294 | 0 |
| 21.78.31.15 | 357441295 | 0 |
| 21.78.31.16 | 357441296 | 0 |
| 21.78.31.17 | 357441297 | 0 |
| 21.78.31.18 | 357441298 | 0 |
| 21.78.31.19 | 357441299 | 0 |
| 21.78.31.20 | 357441300 | 0 |
| 21.78.31.21 | 357441301 | 0 |
| 21.78.31.22 | 357441302 | 0 |
| 21.78.31.23 | 357441303 | 0 |
| 21.78.31.24 | 357441304 | 0 |
| 21.78.31.25 | 357441305 | 0 |
| 21.78.31.26 | 357441306 | 0 |
| 21.78.31.27 | 357441307 | 0 |
| 21.78.31.28 | 357441308 | 0 |
| 21.78.31.29 | 357441309 | 0 |
| 21.78.31.30 | 357441310 | 0 |
| 21.78.31.31 | 357441311 | 0 |
| 21.78.31.32 | 357441312 | 0 |
| 21.78.31.33 | 357441313 | 0 |
| 21.78.31.34 | 357441314 | 0 |
| 21.78.31.35 | 357441315 | 0 |
| 21.78.31.36 | 357441316 | 0 |
| 21.78.31.37 | 357441317 | 0 |
| 21.78.31.38 | 357441318 | 0 |
| 21.78.31.39 | 357441319 | 0 |
| 21.78.31.40 | 357441320 | 0 |
| 21.78.31.41 | 357441321 | 0 |
| 21.78.31.42 | 357441322 | 0 |
| 21.78.31.43 | 357441323 | 0 |
| 21.78.31.44 | 357441324 | 0 |
| 21.78.31.45 | 357441325 | 0 |
| 21.78.31.46 | 357441326 | 0 |
| 21.78.31.47 | 357441327 | 0 |
| 21.78.31.48 | 357441328 | 0 |
| 21.78.31.49 | 357441329 | 0 |
| 21.78.31.50 | 357441330 | 0 |
| 21.78.31.51 | 357441331 | 0 |
| 21.78.31.52 | 357441332 | 0 |
| 21.78.31.53 | 357441333 | 0 |
| 21.78.31.54 | 357441334 | 0 |
| 21.78.31.55 | 357441335 | 0 |
| 21.78.31.56 | 357441336 | 0 |
| 21.78.31.57 | 357441337 | 0 |
| 21.78.31.58 | 357441338 | 0 |
| 21.78.31.59 | 357441339 | 0 |
| 21.78.31.60 | 357441340 | 0 |
| 21.78.31.61 | 357441341 | 0 |
| 21.78.31.62 | 357441342 | 0 |
| 21.78.31.63 | 357441343 | 0 |
| 21.78.31.64 | 357441344 | 0 |
| 21.78.31.65 | 357441345 | 0 |
| 21.78.31.66 | 357441346 | 0 |
| 21.78.31.67 | 357441347 | 0 |
| 21.78.31.68 | 357441348 | 0 |
| 21.78.31.69 | 357441349 | 0 |
| 21.78.31.70 | 357441350 | 0 |
| 21.78.31.71 | 357441351 | 0 |
| 21.78.31.72 | 357441352 | 0 |
| 21.78.31.73 | 357441353 | 0 |
| 21.78.31.74 | 357441354 | 0 |
| 21.78.31.75 | 357441355 | 0 |
| 21.78.31.76 | 357441356 | 0 |
| 21.78.31.77 | 357441357 | 0 |
| 21.78.31.78 | 357441358 | 0 |
| 21.78.31.79 | 357441359 | 0 |
| 21.78.31.80 | 357441360 | 0 |
| 21.78.31.81 | 357441361 | 0 |
| 21.78.31.82 | 357441362 | 0 |
| 21.78.31.83 | 357441363 | 0 |
| 21.78.31.84 | 357441364 | 0 |
| 21.78.31.85 | 357441365 | 0 |