La dirección IP 21.255.4 es proporcionada por China Education and Research Network Center, que es propiedad de la CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP entre 22.30.204.0 a 22.30.205.255 ). El número de sistema autónomo (ASN) es 4538.
| ASN | 4538 |
| IP que comienzan con | 22.30.204.0 |
| IP que termina con | 22.30.205.255 |
| ASN Nombre | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérica | |
| Registe | |
| Última actualización | 13/02/2018 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2018-02-13 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2018-02-13 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.255.4.0 | 369034240 | 0 |
| 21.255.4.1 | 369034241 | 0 |
| 21.255.4.2 | 369034242 | 0 |
| 21.255.4.3 | 369034243 | 0 |
| 21.255.4.4 | 369034244 | 0 |
| 21.255.4.5 | 369034245 | 0 |
| 21.255.4.6 | 369034246 | 0 |
| 21.255.4.7 | 369034247 | 0 |
| 21.255.4.8 | 369034248 | 0 |
| 21.255.4.9 | 369034249 | 0 |
| 21.255.4.10 | 369034250 | 0 |
| 21.255.4.11 | 369034251 | 0 |
| 21.255.4.12 | 369034252 | 0 |
| 21.255.4.13 | 369034253 | 0 |
| 21.255.4.14 | 369034254 | 0 |
| 21.255.4.15 | 369034255 | 0 |
| 21.255.4.16 | 369034256 | 0 |
| 21.255.4.17 | 369034257 | 0 |
| 21.255.4.18 | 369034258 | 0 |
| 21.255.4.19 | 369034259 | 0 |
| 21.255.4.20 | 369034260 | 0 |
| 21.255.4.21 | 369034261 | 0 |
| 21.255.4.22 | 369034262 | 0 |
| 21.255.4.23 | 369034263 | 0 |
| 21.255.4.24 | 369034264 | 0 |
| 21.255.4.25 | 369034265 | 0 |
| 21.255.4.26 | 369034266 | 0 |
| 21.255.4.27 | 369034267 | 0 |
| 21.255.4.28 | 369034268 | 0 |
| 21.255.4.29 | 369034269 | 0 |
| 21.255.4.30 | 369034270 | 0 |
| 21.255.4.31 | 369034271 | 0 |
| 21.255.4.32 | 369034272 | 0 |
| 21.255.4.33 | 369034273 | 0 |
| 21.255.4.34 | 369034274 | 0 |
| 21.255.4.35 | 369034275 | 0 |
| 21.255.4.36 | 369034276 | 0 |
| 21.255.4.37 | 369034277 | 0 |
| 21.255.4.38 | 369034278 | 0 |
| 21.255.4.39 | 369034279 | 0 |
| 21.255.4.40 | 369034280 | 0 |
| 21.255.4.41 | 369034281 | 0 |
| 21.255.4.42 | 369034282 | 0 |
| 21.255.4.43 | 369034283 | 0 |
| 21.255.4.44 | 369034284 | 0 |
| 21.255.4.45 | 369034285 | 0 |
| 21.255.4.46 | 369034286 | 0 |
| 21.255.4.47 | 369034287 | 0 |
| 21.255.4.48 | 369034288 | 0 |
| 21.255.4.49 | 369034289 | 0 |
| 21.255.4.50 | 369034290 | 0 |
| 21.255.4.51 | 369034291 | 0 |
| 21.255.4.52 | 369034292 | 0 |
| 21.255.4.53 | 369034293 | 0 |
| 21.255.4.54 | 369034294 | 0 |
| 21.255.4.55 | 369034295 | 0 |
| 21.255.4.56 | 369034296 | 0 |
| 21.255.4.57 | 369034297 | 0 |
| 21.255.4.58 | 369034298 | 0 |
| 21.255.4.59 | 369034299 | 0 |
| 21.255.4.60 | 369034300 | 0 |
| 21.255.4.61 | 369034301 | 0 |
| 21.255.4.62 | 369034302 | 0 |
| 21.255.4.63 | 369034303 | 0 |
| 21.255.4.64 | 369034304 | 0 |
| 21.255.4.65 | 369034305 | 0 |
| 21.255.4.66 | 369034306 | 0 |
| 21.255.4.67 | 369034307 | 0 |
| 21.255.4.68 | 369034308 | 0 |
| 21.255.4.69 | 369034309 | 0 |
| 21.255.4.70 | 369034310 | 0 |
| 21.255.4.71 | 369034311 | 0 |
| 21.255.4.72 | 369034312 | 0 |
| 21.255.4.73 | 369034313 | 0 |
| 21.255.4.74 | 369034314 | 0 |
| 21.255.4.75 | 369034315 | 0 |
| 21.255.4.76 | 369034316 | 0 |
| 21.255.4.77 | 369034317 | 0 |
| 21.255.4.78 | 369034318 | 0 |
| 21.255.4.79 | 369034319 | 0 |
| 21.255.4.80 | 369034320 | 0 |
| 21.255.4.81 | 369034321 | 0 |
| 21.255.4.82 | 369034322 | 0 |
| 21.255.4.83 | 369034323 | 0 |
| 21.255.4.84 | 369034324 | 0 |
| 21.255.4.85 | 369034325 | 0 |