Les adresses IP débutant par 21.255.8 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 | 20/01/2019 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Hempstead | 40,7062 | -73,6187 | 2019-01-19 |
| MaxMind | US | États-Unis | - | - | 37,751 | -97,822 | 2019-01-19 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.255.8.0 | 369035264 | 0 |
| 21.255.8.1 | 369035265 | 0 |
| 21.255.8.2 | 369035266 | 0 |
| 21.255.8.3 | 369035267 | 0 |
| 21.255.8.4 | 369035268 | 0 |
| 21.255.8.5 | 369035269 | 0 |
| 21.255.8.6 | 369035270 | 0 |
| 21.255.8.7 | 369035271 | 0 |
| 21.255.8.8 | 369035272 | 0 |
| 21.255.8.9 | 369035273 | 0 |
| 21.255.8.10 | 369035274 | 0 |
| 21.255.8.11 | 369035275 | 0 |
| 21.255.8.12 | 369035276 | 0 |
| 21.255.8.13 | 369035277 | 0 |
| 21.255.8.14 | 369035278 | 0 |
| 21.255.8.15 | 369035279 | 0 |
| 21.255.8.16 | 369035280 | 0 |
| 21.255.8.17 | 369035281 | 0 |
| 21.255.8.18 | 369035282 | 0 |
| 21.255.8.19 | 369035283 | 0 |
| 21.255.8.20 | 369035284 | 0 |
| 21.255.8.21 | 369035285 | 0 |
| 21.255.8.22 | 369035286 | 0 |
| 21.255.8.23 | 369035287 | 0 |
| 21.255.8.24 | 369035288 | 0 |
| 21.255.8.25 | 369035289 | 0 |
| 21.255.8.26 | 369035290 | 0 |
| 21.255.8.27 | 369035291 | 0 |
| 21.255.8.28 | 369035292 | 0 |
| 21.255.8.29 | 369035293 | 0 |
| 21.255.8.30 | 369035294 | 0 |
| 21.255.8.31 | 369035295 | 0 |
| 21.255.8.32 | 369035296 | 0 |
| 21.255.8.33 | 369035297 | 0 |
| 21.255.8.34 | 369035298 | 0 |
| 21.255.8.35 | 369035299 | 0 |
| 21.255.8.36 | 369035300 | 0 |
| 21.255.8.37 | 369035301 | 0 |
| 21.255.8.38 | 369035302 | 0 |
| 21.255.8.39 | 369035303 | 0 |
| 21.255.8.40 | 369035304 | 0 |
| 21.255.8.41 | 369035305 | 0 |
| 21.255.8.42 | 369035306 | 0 |
| 21.255.8.43 | 369035307 | 0 |
| 21.255.8.44 | 369035308 | 0 |
| 21.255.8.45 | 369035309 | 0 |
| 21.255.8.46 | 369035310 | 0 |
| 21.255.8.47 | 369035311 | 0 |
| 21.255.8.48 | 369035312 | 0 |
| 21.255.8.49 | 369035313 | 0 |
| 21.255.8.50 | 369035314 | 0 |
| 21.255.8.51 | 369035315 | 0 |
| 21.255.8.52 | 369035316 | 0 |
| 21.255.8.53 | 369035317 | 0 |
| 21.255.8.54 | 369035318 | 0 |
| 21.255.8.55 | 369035319 | 0 |
| 21.255.8.56 | 369035320 | 0 |
| 21.255.8.57 | 369035321 | 0 |
| 21.255.8.58 | 369035322 | 0 |
| 21.255.8.59 | 369035323 | 0 |
| 21.255.8.60 | 369035324 | 0 |
| 21.255.8.61 | 369035325 | 0 |
| 21.255.8.62 | 369035326 | 0 |
| 21.255.8.63 | 369035327 | 0 |
| 21.255.8.64 | 369035328 | 0 |
| 21.255.8.65 | 369035329 | 0 |
| 21.255.8.66 | 369035330 | 0 |
| 21.255.8.67 | 369035331 | 0 |
| 21.255.8.68 | 369035332 | 0 |
| 21.255.8.69 | 369035333 | 0 |
| 21.255.8.70 | 369035334 | 0 |
| 21.255.8.71 | 369035335 | 0 |
| 21.255.8.72 | 369035336 | 0 |
| 21.255.8.73 | 369035337 | 0 |
| 21.255.8.74 | 369035338 | 0 |
| 21.255.8.75 | 369035339 | 0 |
| 21.255.8.76 | 369035340 | 0 |
| 21.255.8.77 | 369035341 | 0 |
| 21.255.8.78 | 369035342 | 0 |
| 21.255.8.79 | 369035343 | 0 |
| 21.255.8.80 | 369035344 | 0 |
| 21.255.8.81 | 369035345 | 0 |
| 21.255.8.82 | 369035346 | 0 |
| 21.255.8.83 | 369035347 | 0 |
| 21.255.8.84 | 369035348 | 0 |
| 21.255.8.85 | 369035349 | 0 |