The IP address 21.83.20 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 | 10/07/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-07-10 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-07-10 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.83.20.0 | 357766144 | 0 |
| 21.83.20.1 | 357766145 | 0 |
| 21.83.20.2 | 357766146 | 0 |
| 21.83.20.3 | 357766147 | 0 |
| 21.83.20.4 | 357766148 | 0 |
| 21.83.20.5 | 357766149 | 0 |
| 21.83.20.6 | 357766150 | 0 |
| 21.83.20.7 | 357766151 | 0 |
| 21.83.20.8 | 357766152 | 0 |
| 21.83.20.9 | 357766153 | 0 |
| 21.83.20.10 | 357766154 | 0 |
| 21.83.20.11 | 357766155 | 0 |
| 21.83.20.12 | 357766156 | 0 |
| 21.83.20.13 | 357766157 | 0 |
| 21.83.20.14 | 357766158 | 0 |
| 21.83.20.15 | 357766159 | 0 |
| 21.83.20.16 | 357766160 | 0 |
| 21.83.20.17 | 357766161 | 0 |
| 21.83.20.18 | 357766162 | 0 |
| 21.83.20.19 | 357766163 | 0 |
| 21.83.20.20 | 357766164 | 0 |
| 21.83.20.21 | 357766165 | 0 |
| 21.83.20.22 | 357766166 | 0 |
| 21.83.20.23 | 357766167 | 0 |
| 21.83.20.24 | 357766168 | 0 |
| 21.83.20.25 | 357766169 | 0 |
| 21.83.20.26 | 357766170 | 0 |
| 21.83.20.27 | 357766171 | 0 |
| 21.83.20.28 | 357766172 | 0 |
| 21.83.20.29 | 357766173 | 0 |
| 21.83.20.30 | 357766174 | 0 |
| 21.83.20.31 | 357766175 | 0 |
| 21.83.20.32 | 357766176 | 0 |
| 21.83.20.33 | 357766177 | 0 |
| 21.83.20.34 | 357766178 | 0 |
| 21.83.20.35 | 357766179 | 0 |
| 21.83.20.36 | 357766180 | 0 |
| 21.83.20.37 | 357766181 | 0 |
| 21.83.20.38 | 357766182 | 0 |
| 21.83.20.39 | 357766183 | 0 |
| 21.83.20.40 | 357766184 | 0 |
| 21.83.20.41 | 357766185 | 0 |
| 21.83.20.42 | 357766186 | 0 |
| 21.83.20.43 | 357766187 | 0 |
| 21.83.20.44 | 357766188 | 0 |
| 21.83.20.45 | 357766189 | 0 |
| 21.83.20.46 | 357766190 | 0 |
| 21.83.20.47 | 357766191 | 0 |
| 21.83.20.48 | 357766192 | 0 |
| 21.83.20.49 | 357766193 | 0 |
| 21.83.20.50 | 357766194 | 0 |
| 21.83.20.51 | 357766195 | 0 |
| 21.83.20.52 | 357766196 | 0 |
| 21.83.20.53 | 357766197 | 0 |
| 21.83.20.54 | 357766198 | 0 |
| 21.83.20.55 | 357766199 | 0 |
| 21.83.20.56 | 357766200 | 0 |
| 21.83.20.57 | 357766201 | 0 |
| 21.83.20.58 | 357766202 | 0 |
| 21.83.20.59 | 357766203 | 0 |
| 21.83.20.60 | 357766204 | 0 |
| 21.83.20.61 | 357766205 | 0 |
| 21.83.20.62 | 357766206 | 0 |
| 21.83.20.63 | 357766207 | 0 |
| 21.83.20.64 | 357766208 | 0 |
| 21.83.20.65 | 357766209 | 0 |
| 21.83.20.66 | 357766210 | 0 |
| 21.83.20.67 | 357766211 | 0 |
| 21.83.20.68 | 357766212 | 0 |
| 21.83.20.69 | 357766213 | 0 |
| 21.83.20.70 | 357766214 | 0 |
| 21.83.20.71 | 357766215 | 0 |
| 21.83.20.72 | 357766216 | 0 |
| 21.83.20.73 | 357766217 | 0 |
| 21.83.20.74 | 357766218 | 0 |
| 21.83.20.75 | 357766219 | 0 |
| 21.83.20.76 | 357766220 | 0 |
| 21.83.20.77 | 357766221 | 0 |
| 21.83.20.78 | 357766222 | 0 |
| 21.83.20.79 | 357766223 | 0 |
| 21.83.20.80 | 357766224 | 0 |
| 21.83.20.81 | 357766225 | 0 |
| 21.83.20.82 | 357766226 | 0 |
| 21.83.20.83 | 357766227 | 0 |
| 21.83.20.84 | 357766228 | 0 |
| 21.83.20.85 | 357766229 | 0 |