The IP address 21.68.28 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 | 12/09/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-09-11 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-09-11 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.68.28.0 | 356785152 | 0 |
| 21.68.28.1 | 356785153 | 0 |
| 21.68.28.2 | 356785154 | 0 |
| 21.68.28.3 | 356785155 | 0 |
| 21.68.28.4 | 356785156 | 0 |
| 21.68.28.5 | 356785157 | 0 |
| 21.68.28.6 | 356785158 | 0 |
| 21.68.28.7 | 356785159 | 0 |
| 21.68.28.8 | 356785160 | 0 |
| 21.68.28.9 | 356785161 | 0 |
| 21.68.28.10 | 356785162 | 0 |
| 21.68.28.11 | 356785163 | 0 |
| 21.68.28.12 | 356785164 | 0 |
| 21.68.28.13 | 356785165 | 0 |
| 21.68.28.14 | 356785166 | 0 |
| 21.68.28.15 | 356785167 | 0 |
| 21.68.28.16 | 356785168 | 0 |
| 21.68.28.17 | 356785169 | 0 |
| 21.68.28.18 | 356785170 | 0 |
| 21.68.28.19 | 356785171 | 0 |
| 21.68.28.20 | 356785172 | 0 |
| 21.68.28.21 | 356785173 | 0 |
| 21.68.28.22 | 356785174 | 0 |
| 21.68.28.23 | 356785175 | 0 |
| 21.68.28.24 | 356785176 | 0 |
| 21.68.28.25 | 356785177 | 0 |
| 21.68.28.26 | 356785178 | 0 |
| 21.68.28.27 | 356785179 | 0 |
| 21.68.28.28 | 356785180 | 0 |
| 21.68.28.29 | 356785181 | 0 |
| 21.68.28.30 | 356785182 | 0 |
| 21.68.28.31 | 356785183 | 0 |
| 21.68.28.32 | 356785184 | 0 |
| 21.68.28.33 | 356785185 | 0 |
| 21.68.28.34 | 356785186 | 0 |
| 21.68.28.35 | 356785187 | 0 |
| 21.68.28.36 | 356785188 | 0 |
| 21.68.28.37 | 356785189 | 0 |
| 21.68.28.38 | 356785190 | 0 |
| 21.68.28.39 | 356785191 | 0 |
| 21.68.28.40 | 356785192 | 0 |
| 21.68.28.41 | 356785193 | 0 |
| 21.68.28.42 | 356785194 | 0 |
| 21.68.28.43 | 356785195 | 0 |
| 21.68.28.44 | 356785196 | 0 |
| 21.68.28.45 | 356785197 | 0 |
| 21.68.28.46 | 356785198 | 0 |
| 21.68.28.47 | 356785199 | 0 |
| 21.68.28.48 | 356785200 | 0 |
| 21.68.28.49 | 356785201 | 0 |
| 21.68.28.50 | 356785202 | 0 |
| 21.68.28.51 | 356785203 | 0 |
| 21.68.28.52 | 356785204 | 0 |
| 21.68.28.53 | 356785205 | 0 |
| 21.68.28.54 | 356785206 | 0 |
| 21.68.28.55 | 356785207 | 0 |
| 21.68.28.56 | 356785208 | 0 |
| 21.68.28.57 | 356785209 | 0 |
| 21.68.28.58 | 356785210 | 0 |
| 21.68.28.59 | 356785211 | 0 |
| 21.68.28.60 | 356785212 | 0 |
| 21.68.28.61 | 356785213 | 0 |
| 21.68.28.62 | 356785214 | 0 |
| 21.68.28.63 | 356785215 | 0 |
| 21.68.28.64 | 356785216 | 0 |
| 21.68.28.65 | 356785217 | 0 |
| 21.68.28.66 | 356785218 | 0 |
| 21.68.28.67 | 356785219 | 0 |
| 21.68.28.68 | 356785220 | 0 |
| 21.68.28.69 | 356785221 | 0 |
| 21.68.28.70 | 356785222 | 0 |
| 21.68.28.71 | 356785223 | 0 |
| 21.68.28.72 | 356785224 | 0 |
| 21.68.28.73 | 356785225 | 0 |
| 21.68.28.74 | 356785226 | 0 |
| 21.68.28.75 | 356785227 | 0 |
| 21.68.28.76 | 356785228 | 0 |
| 21.68.28.77 | 356785229 | 0 |
| 21.68.28.78 | 356785230 | 0 |
| 21.68.28.79 | 356785231 | 0 |
| 21.68.28.80 | 356785232 | 0 |
| 21.68.28.81 | 356785233 | 0 |
| 21.68.28.82 | 356785234 | 0 |
| 21.68.28.83 | 356785235 | 0 |
| 21.68.28.84 | 356785236 | 0 |
| 21.68.28.85 | 356785237 | 0 |