The IP address 21.90.80 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 | 26/09/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-09-26 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-09-26 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.90.80.0 | 358240256 | 0 |
| 21.90.80.1 | 358240257 | 0 |
| 21.90.80.2 | 358240258 | 0 |
| 21.90.80.3 | 358240259 | 0 |
| 21.90.80.4 | 358240260 | 0 |
| 21.90.80.5 | 358240261 | 0 |
| 21.90.80.6 | 358240262 | 0 |
| 21.90.80.7 | 358240263 | 0 |
| 21.90.80.8 | 358240264 | 0 |
| 21.90.80.9 | 358240265 | 0 |
| 21.90.80.10 | 358240266 | 0 |
| 21.90.80.11 | 358240267 | 0 |
| 21.90.80.12 | 358240268 | 0 |
| 21.90.80.13 | 358240269 | 0 |
| 21.90.80.14 | 358240270 | 0 |
| 21.90.80.15 | 358240271 | 0 |
| 21.90.80.16 | 358240272 | 0 |
| 21.90.80.17 | 358240273 | 0 |
| 21.90.80.18 | 358240274 | 0 |
| 21.90.80.19 | 358240275 | 0 |
| 21.90.80.20 | 358240276 | 0 |
| 21.90.80.21 | 358240277 | 0 |
| 21.90.80.22 | 358240278 | 0 |
| 21.90.80.23 | 358240279 | 0 |
| 21.90.80.24 | 358240280 | 0 |
| 21.90.80.25 | 358240281 | 0 |
| 21.90.80.26 | 358240282 | 0 |
| 21.90.80.27 | 358240283 | 0 |
| 21.90.80.28 | 358240284 | 0 |
| 21.90.80.29 | 358240285 | 0 |
| 21.90.80.30 | 358240286 | 0 |
| 21.90.80.31 | 358240287 | 0 |
| 21.90.80.32 | 358240288 | 0 |
| 21.90.80.33 | 358240289 | 0 |
| 21.90.80.34 | 358240290 | 0 |
| 21.90.80.35 | 358240291 | 0 |
| 21.90.80.36 | 358240292 | 0 |
| 21.90.80.37 | 358240293 | 0 |
| 21.90.80.38 | 358240294 | 0 |
| 21.90.80.39 | 358240295 | 0 |
| 21.90.80.40 | 358240296 | 0 |
| 21.90.80.41 | 358240297 | 0 |
| 21.90.80.42 | 358240298 | 0 |
| 21.90.80.43 | 358240299 | 0 |
| 21.90.80.44 | 358240300 | 0 |
| 21.90.80.45 | 358240301 | 0 |
| 21.90.80.46 | 358240302 | 0 |
| 21.90.80.47 | 358240303 | 0 |
| 21.90.80.48 | 358240304 | 0 |
| 21.90.80.49 | 358240305 | 0 |
| 21.90.80.50 | 358240306 | 0 |
| 21.90.80.51 | 358240307 | 0 |
| 21.90.80.52 | 358240308 | 0 |
| 21.90.80.53 | 358240309 | 0 |
| 21.90.80.54 | 358240310 | 0 |
| 21.90.80.55 | 358240311 | 0 |
| 21.90.80.56 | 358240312 | 0 |
| 21.90.80.57 | 358240313 | 0 |
| 21.90.80.58 | 358240314 | 0 |
| 21.90.80.59 | 358240315 | 0 |
| 21.90.80.60 | 358240316 | 0 |
| 21.90.80.61 | 358240317 | 0 |
| 21.90.80.62 | 358240318 | 0 |
| 21.90.80.63 | 358240319 | 0 |
| 21.90.80.64 | 358240320 | 0 |
| 21.90.80.65 | 358240321 | 0 |
| 21.90.80.66 | 358240322 | 0 |
| 21.90.80.67 | 358240323 | 0 |
| 21.90.80.68 | 358240324 | 0 |
| 21.90.80.69 | 358240325 | 0 |
| 21.90.80.70 | 358240326 | 0 |
| 21.90.80.71 | 358240327 | 0 |
| 21.90.80.72 | 358240328 | 0 |
| 21.90.80.73 | 358240329 | 0 |
| 21.90.80.74 | 358240330 | 0 |
| 21.90.80.75 | 358240331 | 0 |
| 21.90.80.76 | 358240332 | 0 |
| 21.90.80.77 | 358240333 | 0 |
| 21.90.80.78 | 358240334 | 0 |
| 21.90.80.79 | 358240335 | 0 |
| 21.90.80.80 | 358240336 | 0 |
| 21.90.80.81 | 358240337 | 0 |
| 21.90.80.82 | 358240338 | 0 |
| 21.90.80.83 | 358240339 | 0 |
| 21.90.80.84 | 358240340 | 0 |
| 21.90.80.85 | 358240341 | 0 |