La dirección IP 21.8.166 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 | 19/02/2018 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2018-02-19 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2018-02-19 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.8.166.0 | 352888320 | 0 |
| 21.8.166.1 | 352888321 | 0 |
| 21.8.166.2 | 352888322 | 0 |
| 21.8.166.3 | 352888323 | 0 |
| 21.8.166.4 | 352888324 | 0 |
| 21.8.166.5 | 352888325 | 0 |
| 21.8.166.6 | 352888326 | 0 |
| 21.8.166.7 | 352888327 | 0 |
| 21.8.166.8 | 352888328 | 0 |
| 21.8.166.9 | 352888329 | 0 |
| 21.8.166.10 | 352888330 | 0 |
| 21.8.166.11 | 352888331 | 0 |
| 21.8.166.12 | 352888332 | 0 |
| 21.8.166.13 | 352888333 | 0 |
| 21.8.166.14 | 352888334 | 0 |
| 21.8.166.15 | 352888335 | 0 |
| 21.8.166.16 | 352888336 | 0 |
| 21.8.166.17 | 352888337 | 0 |
| 21.8.166.18 | 352888338 | 0 |
| 21.8.166.19 | 352888339 | 0 |
| 21.8.166.20 | 352888340 | 0 |
| 21.8.166.21 | 352888341 | 0 |
| 21.8.166.22 | 352888342 | 0 |
| 21.8.166.23 | 352888343 | 0 |
| 21.8.166.24 | 352888344 | 0 |
| 21.8.166.25 | 352888345 | 0 |
| 21.8.166.26 | 352888346 | 0 |
| 21.8.166.27 | 352888347 | 0 |
| 21.8.166.28 | 352888348 | 0 |
| 21.8.166.29 | 352888349 | 0 |
| 21.8.166.30 | 352888350 | 0 |
| 21.8.166.31 | 352888351 | 0 |
| 21.8.166.32 | 352888352 | 0 |
| 21.8.166.33 | 352888353 | 0 |
| 21.8.166.34 | 352888354 | 0 |
| 21.8.166.35 | 352888355 | 0 |
| 21.8.166.36 | 352888356 | 0 |
| 21.8.166.37 | 352888357 | 0 |
| 21.8.166.38 | 352888358 | 0 |
| 21.8.166.39 | 352888359 | 0 |
| 21.8.166.40 | 352888360 | 0 |
| 21.8.166.41 | 352888361 | 0 |
| 21.8.166.42 | 352888362 | 0 |
| 21.8.166.43 | 352888363 | 0 |
| 21.8.166.44 | 352888364 | 0 |
| 21.8.166.45 | 352888365 | 0 |
| 21.8.166.46 | 352888366 | 0 |
| 21.8.166.47 | 352888367 | 0 |
| 21.8.166.48 | 352888368 | 0 |
| 21.8.166.49 | 352888369 | 0 |
| 21.8.166.50 | 352888370 | 0 |
| 21.8.166.51 | 352888371 | 0 |
| 21.8.166.52 | 352888372 | 0 |
| 21.8.166.53 | 352888373 | 0 |
| 21.8.166.54 | 352888374 | 0 |
| 21.8.166.55 | 352888375 | 0 |
| 21.8.166.56 | 352888376 | 0 |
| 21.8.166.57 | 352888377 | 0 |
| 21.8.166.58 | 352888378 | 0 |
| 21.8.166.59 | 352888379 | 0 |
| 21.8.166.60 | 352888380 | 0 |
| 21.8.166.61 | 352888381 | 0 |
| 21.8.166.62 | 352888382 | 0 |
| 21.8.166.63 | 352888383 | 0 |
| 21.8.166.64 | 352888384 | 0 |
| 21.8.166.65 | 352888385 | 0 |
| 21.8.166.66 | 352888386 | 0 |
| 21.8.166.67 | 352888387 | 0 |
| 21.8.166.68 | 352888388 | 0 |
| 21.8.166.69 | 352888389 | 0 |
| 21.8.166.70 | 352888390 | 0 |
| 21.8.166.71 | 352888391 | 0 |
| 21.8.166.72 | 352888392 | 0 |
| 21.8.166.73 | 352888393 | 0 |
| 21.8.166.74 | 352888394 | 0 |
| 21.8.166.75 | 352888395 | 0 |
| 21.8.166.76 | 352888396 | 0 |
| 21.8.166.77 | 352888397 | 0 |
| 21.8.166.78 | 352888398 | 0 |
| 21.8.166.79 | 352888399 | 0 |
| 21.8.166.80 | 352888400 | 0 |
| 21.8.166.81 | 352888401 | 0 |
| 21.8.166.82 | 352888402 | 0 |
| 21.8.166.83 | 352888403 | 0 |
| 21.8.166.84 | 352888404 | 0 |
| 21.8.166.85 | 352888405 | 0 |