La dirección IP 21.4.166 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 | 30/10/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2017-10-30 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2017-10-30 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.4.166.0 | 352626176 | 0 |
| 21.4.166.1 | 352626177 | 0 |
| 21.4.166.2 | 352626178 | 0 |
| 21.4.166.3 | 352626179 | 0 |
| 21.4.166.4 | 352626180 | 0 |
| 21.4.166.5 | 352626181 | 0 |
| 21.4.166.6 | 352626182 | 0 |
| 21.4.166.7 | 352626183 | 0 |
| 21.4.166.8 | 352626184 | 0 |
| 21.4.166.9 | 352626185 | 0 |
| 21.4.166.10 | 352626186 | 0 |
| 21.4.166.11 | 352626187 | 0 |
| 21.4.166.12 | 352626188 | 0 |
| 21.4.166.13 | 352626189 | 0 |
| 21.4.166.14 | 352626190 | 0 |
| 21.4.166.15 | 352626191 | 0 |
| 21.4.166.16 | 352626192 | 0 |
| 21.4.166.17 | 352626193 | 0 |
| 21.4.166.18 | 352626194 | 0 |
| 21.4.166.19 | 352626195 | 0 |
| 21.4.166.20 | 352626196 | 0 |
| 21.4.166.21 | 352626197 | 0 |
| 21.4.166.22 | 352626198 | 0 |
| 21.4.166.23 | 352626199 | 0 |
| 21.4.166.24 | 352626200 | 0 |
| 21.4.166.25 | 352626201 | 0 |
| 21.4.166.26 | 352626202 | 0 |
| 21.4.166.27 | 352626203 | 0 |
| 21.4.166.28 | 352626204 | 0 |
| 21.4.166.29 | 352626205 | 0 |
| 21.4.166.30 | 352626206 | 0 |
| 21.4.166.31 | 352626207 | 0 |
| 21.4.166.32 | 352626208 | 0 |
| 21.4.166.33 | 352626209 | 0 |
| 21.4.166.34 | 352626210 | 0 |
| 21.4.166.35 | 352626211 | 0 |
| 21.4.166.36 | 352626212 | 0 |
| 21.4.166.37 | 352626213 | 0 |
| 21.4.166.38 | 352626214 | 0 |
| 21.4.166.39 | 352626215 | 0 |
| 21.4.166.40 | 352626216 | 0 |
| 21.4.166.41 | 352626217 | 0 |
| 21.4.166.42 | 352626218 | 0 |
| 21.4.166.43 | 352626219 | 0 |
| 21.4.166.44 | 352626220 | 0 |
| 21.4.166.45 | 352626221 | 0 |
| 21.4.166.46 | 352626222 | 0 |
| 21.4.166.47 | 352626223 | 0 |
| 21.4.166.48 | 352626224 | 0 |
| 21.4.166.49 | 352626225 | 0 |
| 21.4.166.50 | 352626226 | 0 |
| 21.4.166.51 | 352626227 | 0 |
| 21.4.166.52 | 352626228 | 0 |
| 21.4.166.53 | 352626229 | 0 |
| 21.4.166.54 | 352626230 | 0 |
| 21.4.166.55 | 352626231 | 0 |
| 21.4.166.56 | 352626232 | 0 |
| 21.4.166.57 | 352626233 | 0 |
| 21.4.166.58 | 352626234 | 0 |
| 21.4.166.59 | 352626235 | 0 |
| 21.4.166.60 | 352626236 | 0 |
| 21.4.166.61 | 352626237 | 0 |
| 21.4.166.62 | 352626238 | 0 |
| 21.4.166.63 | 352626239 | 0 |
| 21.4.166.64 | 352626240 | 0 |
| 21.4.166.65 | 352626241 | 0 |
| 21.4.166.66 | 352626242 | 0 |
| 21.4.166.67 | 352626243 | 0 |
| 21.4.166.68 | 352626244 | 0 |
| 21.4.166.69 | 352626245 | 0 |
| 21.4.166.70 | 352626246 | 0 |
| 21.4.166.71 | 352626247 | 0 |
| 21.4.166.72 | 352626248 | 0 |
| 21.4.166.73 | 352626249 | 0 |
| 21.4.166.74 | 352626250 | 0 |
| 21.4.166.75 | 352626251 | 0 |
| 21.4.166.76 | 352626252 | 0 |
| 21.4.166.77 | 352626253 | 0 |
| 21.4.166.78 | 352626254 | 0 |
| 21.4.166.79 | 352626255 | 0 |
| 21.4.166.80 | 352626256 | 0 |
| 21.4.166.81 | 352626257 | 0 |
| 21.4.166.82 | 352626258 | 0 |
| 21.4.166.83 | 352626259 | 0 |
| 21.4.166.84 | 352626260 | 0 |
| 21.4.166.85 | 352626261 | 0 |