The IP address 21.76.31 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 | 05/08/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-08-05 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-08-05 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.76.31.0 | 357310208 | 0 |
| 21.76.31.1 | 357310209 | 0 |
| 21.76.31.2 | 357310210 | 0 |
| 21.76.31.3 | 357310211 | 0 |
| 21.76.31.4 | 357310212 | 0 |
| 21.76.31.5 | 357310213 | 0 |
| 21.76.31.6 | 357310214 | 0 |
| 21.76.31.7 | 357310215 | 0 |
| 21.76.31.8 | 357310216 | 0 |
| 21.76.31.9 | 357310217 | 0 |
| 21.76.31.10 | 357310218 | 0 |
| 21.76.31.11 | 357310219 | 0 |
| 21.76.31.12 | 357310220 | 0 |
| 21.76.31.13 | 357310221 | 0 |
| 21.76.31.14 | 357310222 | 0 |
| 21.76.31.15 | 357310223 | 0 |
| 21.76.31.16 | 357310224 | 0 |
| 21.76.31.17 | 357310225 | 0 |
| 21.76.31.18 | 357310226 | 0 |
| 21.76.31.19 | 357310227 | 0 |
| 21.76.31.20 | 357310228 | 0 |
| 21.76.31.21 | 357310229 | 0 |
| 21.76.31.22 | 357310230 | 0 |
| 21.76.31.23 | 357310231 | 0 |
| 21.76.31.24 | 357310232 | 0 |
| 21.76.31.25 | 357310233 | 0 |
| 21.76.31.26 | 357310234 | 0 |
| 21.76.31.27 | 357310235 | 0 |
| 21.76.31.28 | 357310236 | 0 |
| 21.76.31.29 | 357310237 | 0 |
| 21.76.31.30 | 357310238 | 0 |
| 21.76.31.31 | 357310239 | 0 |
| 21.76.31.32 | 357310240 | 0 |
| 21.76.31.33 | 357310241 | 0 |
| 21.76.31.34 | 357310242 | 0 |
| 21.76.31.35 | 357310243 | 0 |
| 21.76.31.36 | 357310244 | 0 |
| 21.76.31.37 | 357310245 | 0 |
| 21.76.31.38 | 357310246 | 0 |
| 21.76.31.39 | 357310247 | 0 |
| 21.76.31.40 | 357310248 | 0 |
| 21.76.31.41 | 357310249 | 0 |
| 21.76.31.42 | 357310250 | 0 |
| 21.76.31.43 | 357310251 | 0 |
| 21.76.31.44 | 357310252 | 0 |
| 21.76.31.45 | 357310253 | 0 |
| 21.76.31.46 | 357310254 | 0 |
| 21.76.31.47 | 357310255 | 0 |
| 21.76.31.48 | 357310256 | 0 |
| 21.76.31.49 | 357310257 | 0 |
| 21.76.31.50 | 357310258 | 0 |
| 21.76.31.51 | 357310259 | 0 |
| 21.76.31.52 | 357310260 | 0 |
| 21.76.31.53 | 357310261 | 0 |
| 21.76.31.54 | 357310262 | 0 |
| 21.76.31.55 | 357310263 | 0 |
| 21.76.31.56 | 357310264 | 0 |
| 21.76.31.57 | 357310265 | 0 |
| 21.76.31.58 | 357310266 | 0 |
| 21.76.31.59 | 357310267 | 0 |
| 21.76.31.60 | 357310268 | 0 |
| 21.76.31.61 | 357310269 | 0 |
| 21.76.31.62 | 357310270 | 0 |
| 21.76.31.63 | 357310271 | 0 |
| 21.76.31.64 | 357310272 | 0 |
| 21.76.31.65 | 357310273 | 0 |
| 21.76.31.66 | 357310274 | 0 |
| 21.76.31.67 | 357310275 | 0 |
| 21.76.31.68 | 357310276 | 0 |
| 21.76.31.69 | 357310277 | 0 |
| 21.76.31.70 | 357310278 | 0 |
| 21.76.31.71 | 357310279 | 0 |
| 21.76.31.72 | 357310280 | 0 |
| 21.76.31.73 | 357310281 | 0 |
| 21.76.31.74 | 357310282 | 0 |
| 21.76.31.75 | 357310283 | 0 |
| 21.76.31.76 | 357310284 | 0 |
| 21.76.31.77 | 357310285 | 0 |
| 21.76.31.78 | 357310286 | 0 |
| 21.76.31.79 | 357310287 | 0 |
| 21.76.31.80 | 357310288 | 0 |
| 21.76.31.81 | 357310289 | 0 |
| 21.76.31.82 | 357310290 | 0 |
| 21.76.31.83 | 357310291 | 0 |
| 21.76.31.84 | 357310292 | 0 |
| 21.76.31.85 | 357310293 | 0 |