The IP address 21.71.30 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 | 29/08/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-08-28 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-08-28 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.71.30.0 | 356982272 | 0 |
| 21.71.30.1 | 356982273 | 0 |
| 21.71.30.2 | 356982274 | 0 |
| 21.71.30.3 | 356982275 | 0 |
| 21.71.30.4 | 356982276 | 0 |
| 21.71.30.5 | 356982277 | 0 |
| 21.71.30.6 | 356982278 | 0 |
| 21.71.30.7 | 356982279 | 0 |
| 21.71.30.8 | 356982280 | 0 |
| 21.71.30.9 | 356982281 | 0 |
| 21.71.30.10 | 356982282 | 0 |
| 21.71.30.11 | 356982283 | 0 |
| 21.71.30.12 | 356982284 | 0 |
| 21.71.30.13 | 356982285 | 0 |
| 21.71.30.14 | 356982286 | 0 |
| 21.71.30.15 | 356982287 | 0 |
| 21.71.30.16 | 356982288 | 0 |
| 21.71.30.17 | 356982289 | 0 |
| 21.71.30.18 | 356982290 | 0 |
| 21.71.30.19 | 356982291 | 0 |
| 21.71.30.20 | 356982292 | 0 |
| 21.71.30.21 | 356982293 | 0 |
| 21.71.30.22 | 356982294 | 0 |
| 21.71.30.23 | 356982295 | 0 |
| 21.71.30.24 | 356982296 | 0 |
| 21.71.30.25 | 356982297 | 0 |
| 21.71.30.26 | 356982298 | 0 |
| 21.71.30.27 | 356982299 | 0 |
| 21.71.30.28 | 356982300 | 0 |
| 21.71.30.29 | 356982301 | 0 |
| 21.71.30.30 | 356982302 | 0 |
| 21.71.30.31 | 356982303 | 0 |
| 21.71.30.32 | 356982304 | 0 |
| 21.71.30.33 | 356982305 | 0 |
| 21.71.30.34 | 356982306 | 0 |
| 21.71.30.35 | 356982307 | 0 |
| 21.71.30.36 | 356982308 | 0 |
| 21.71.30.37 | 356982309 | 0 |
| 21.71.30.38 | 356982310 | 0 |
| 21.71.30.39 | 356982311 | 0 |
| 21.71.30.40 | 356982312 | 0 |
| 21.71.30.41 | 356982313 | 0 |
| 21.71.30.42 | 356982314 | 0 |
| 21.71.30.43 | 356982315 | 0 |
| 21.71.30.44 | 356982316 | 0 |
| 21.71.30.45 | 356982317 | 0 |
| 21.71.30.46 | 356982318 | 0 |
| 21.71.30.47 | 356982319 | 0 |
| 21.71.30.48 | 356982320 | 0 |
| 21.71.30.49 | 356982321 | 0 |
| 21.71.30.50 | 356982322 | 0 |
| 21.71.30.51 | 356982323 | 0 |
| 21.71.30.52 | 356982324 | 0 |
| 21.71.30.53 | 356982325 | 0 |
| 21.71.30.54 | 356982326 | 0 |
| 21.71.30.55 | 356982327 | 0 |
| 21.71.30.56 | 356982328 | 0 |
| 21.71.30.57 | 356982329 | 0 |
| 21.71.30.58 | 356982330 | 0 |
| 21.71.30.59 | 356982331 | 0 |
| 21.71.30.60 | 356982332 | 0 |
| 21.71.30.61 | 356982333 | 0 |
| 21.71.30.62 | 356982334 | 0 |
| 21.71.30.63 | 356982335 | 0 |
| 21.71.30.64 | 356982336 | 0 |
| 21.71.30.65 | 356982337 | 0 |
| 21.71.30.66 | 356982338 | 0 |
| 21.71.30.67 | 356982339 | 0 |
| 21.71.30.68 | 356982340 | 0 |
| 21.71.30.69 | 356982341 | 0 |
| 21.71.30.70 | 356982342 | 0 |
| 21.71.30.71 | 356982343 | 0 |
| 21.71.30.72 | 356982344 | 0 |
| 21.71.30.73 | 356982345 | 0 |
| 21.71.30.74 | 356982346 | 0 |
| 21.71.30.75 | 356982347 | 0 |
| 21.71.30.76 | 356982348 | 0 |
| 21.71.30.77 | 356982349 | 0 |
| 21.71.30.78 | 356982350 | 0 |
| 21.71.30.79 | 356982351 | 0 |
| 21.71.30.80 | 356982352 | 0 |
| 21.71.30.81 | 356982353 | 0 |
| 21.71.30.82 | 356982354 | 0 |
| 21.71.30.83 | 356982355 | 0 |
| 21.71.30.84 | 356982356 | 0 |
| 21.71.30.85 | 356982357 | 0 |