Les adresses IP débutant par 21.89.78 sont fournies par China Education and Research Network Center, elles appartiennent au CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, le bloc IP comprant les adresses de 22.30.204.0 à 22.30.205.255). Le numéro de système autonome (ASN) est 4538.
| ASN | 4538 |
| IP commençant par | 22.30.204.0 |
| IP se terminant par | 22.30.205.255 |
| Nom ASN | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérique | |
| Registe | |
| Dernière mise à jour | 16/09/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Columbus | 39,9664 | -83,0128 | 2017-09-16 |
| MaxMind | US | États-Unis | - | - | 37,751 | -97,822 | 2017-09-16 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.89.78.0 | 358174208 | 0 |
| 21.89.78.1 | 358174209 | 0 |
| 21.89.78.2 | 358174210 | 0 |
| 21.89.78.3 | 358174211 | 0 |
| 21.89.78.4 | 358174212 | 0 |
| 21.89.78.5 | 358174213 | 0 |
| 21.89.78.6 | 358174214 | 0 |
| 21.89.78.7 | 358174215 | 0 |
| 21.89.78.8 | 358174216 | 0 |
| 21.89.78.9 | 358174217 | 0 |
| 21.89.78.10 | 358174218 | 0 |
| 21.89.78.11 | 358174219 | 0 |
| 21.89.78.12 | 358174220 | 0 |
| 21.89.78.13 | 358174221 | 0 |
| 21.89.78.14 | 358174222 | 0 |
| 21.89.78.15 | 358174223 | 0 |
| 21.89.78.16 | 358174224 | 0 |
| 21.89.78.17 | 358174225 | 0 |
| 21.89.78.18 | 358174226 | 0 |
| 21.89.78.19 | 358174227 | 0 |
| 21.89.78.20 | 358174228 | 0 |
| 21.89.78.21 | 358174229 | 0 |
| 21.89.78.22 | 358174230 | 0 |
| 21.89.78.23 | 358174231 | 0 |
| 21.89.78.24 | 358174232 | 0 |
| 21.89.78.25 | 358174233 | 0 |
| 21.89.78.26 | 358174234 | 0 |
| 21.89.78.27 | 358174235 | 0 |
| 21.89.78.28 | 358174236 | 0 |
| 21.89.78.29 | 358174237 | 0 |
| 21.89.78.30 | 358174238 | 0 |
| 21.89.78.31 | 358174239 | 0 |
| 21.89.78.32 | 358174240 | 0 |
| 21.89.78.33 | 358174241 | 0 |
| 21.89.78.34 | 358174242 | 0 |
| 21.89.78.35 | 358174243 | 0 |
| 21.89.78.36 | 358174244 | 0 |
| 21.89.78.37 | 358174245 | 0 |
| 21.89.78.38 | 358174246 | 0 |
| 21.89.78.39 | 358174247 | 0 |
| 21.89.78.40 | 358174248 | 0 |
| 21.89.78.41 | 358174249 | 0 |
| 21.89.78.42 | 358174250 | 0 |
| 21.89.78.43 | 358174251 | 0 |
| 21.89.78.44 | 358174252 | 0 |
| 21.89.78.45 | 358174253 | 0 |
| 21.89.78.46 | 358174254 | 0 |
| 21.89.78.47 | 358174255 | 0 |
| 21.89.78.48 | 358174256 | 0 |
| 21.89.78.49 | 358174257 | 0 |
| 21.89.78.50 | 358174258 | 0 |
| 21.89.78.51 | 358174259 | 0 |
| 21.89.78.52 | 358174260 | 0 |
| 21.89.78.53 | 358174261 | 0 |
| 21.89.78.54 | 358174262 | 0 |
| 21.89.78.55 | 358174263 | 0 |
| 21.89.78.56 | 358174264 | 0 |
| 21.89.78.57 | 358174265 | 0 |
| 21.89.78.58 | 358174266 | 0 |
| 21.89.78.59 | 358174267 | 0 |
| 21.89.78.60 | 358174268 | 0 |
| 21.89.78.61 | 358174269 | 0 |
| 21.89.78.62 | 358174270 | 0 |
| 21.89.78.63 | 358174271 | 0 |
| 21.89.78.64 | 358174272 | 0 |
| 21.89.78.65 | 358174273 | 0 |
| 21.89.78.66 | 358174274 | 0 |
| 21.89.78.67 | 358174275 | 0 |
| 21.89.78.68 | 358174276 | 0 |
| 21.89.78.69 | 358174277 | 0 |
| 21.89.78.70 | 358174278 | 0 |
| 21.89.78.71 | 358174279 | 0 |
| 21.89.78.72 | 358174280 | 0 |
| 21.89.78.73 | 358174281 | 0 |
| 21.89.78.74 | 358174282 | 0 |
| 21.89.78.75 | 358174283 | 0 |
| 21.89.78.76 | 358174284 | 0 |
| 21.89.78.77 | 358174285 | 0 |
| 21.89.78.78 | 358174286 | 0 |
| 21.89.78.79 | 358174287 | 0 |
| 21.89.78.80 | 358174288 | 0 |
| 21.89.78.81 | 358174289 | 0 |
| 21.89.78.82 | 358174290 | 0 |
| 21.89.78.83 | 358174291 | 0 |
| 21.89.78.84 | 358174292 | 0 |
| 21.89.78.85 | 358174293 | 0 |