L'indirizzo IP 21.92.91 è fornito da China Education and Research Network Center, che è di proprietà del CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP tra 22.30.204.0 a 22.30.205.255 ). Il numero di sistema autonomo (ASN) è 4538.
| ASN | 4538 |
| IP inizia con | 22.30.204.0 |
| IP finale con | 22.30.205.255 |
| ASN Nome | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numerico | |
| Registe | |
| Ultimo aggiornamento | 27/09/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2017-09-27 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-09-27 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.92.91.0 | 358374144 | 0 |
| 21.92.91.1 | 358374145 | 0 |
| 21.92.91.2 | 358374146 | 0 |
| 21.92.91.3 | 358374147 | 0 |
| 21.92.91.4 | 358374148 | 0 |
| 21.92.91.5 | 358374149 | 0 |
| 21.92.91.6 | 358374150 | 0 |
| 21.92.91.7 | 358374151 | 0 |
| 21.92.91.8 | 358374152 | 0 |
| 21.92.91.9 | 358374153 | 0 |
| 21.92.91.10 | 358374154 | 0 |
| 21.92.91.11 | 358374155 | 0 |
| 21.92.91.12 | 358374156 | 0 |
| 21.92.91.13 | 358374157 | 0 |
| 21.92.91.14 | 358374158 | 0 |
| 21.92.91.15 | 358374159 | 0 |
| 21.92.91.16 | 358374160 | 0 |
| 21.92.91.17 | 358374161 | 0 |
| 21.92.91.18 | 358374162 | 0 |
| 21.92.91.19 | 358374163 | 0 |
| 21.92.91.20 | 358374164 | 0 |
| 21.92.91.21 | 358374165 | 0 |
| 21.92.91.22 | 358374166 | 0 |
| 21.92.91.23 | 358374167 | 0 |
| 21.92.91.24 | 358374168 | 0 |
| 21.92.91.25 | 358374169 | 0 |
| 21.92.91.26 | 358374170 | 0 |
| 21.92.91.27 | 358374171 | 0 |
| 21.92.91.28 | 358374172 | 0 |
| 21.92.91.29 | 358374173 | 0 |
| 21.92.91.30 | 358374174 | 0 |
| 21.92.91.31 | 358374175 | 0 |
| 21.92.91.32 | 358374176 | 0 |
| 21.92.91.33 | 358374177 | 0 |
| 21.92.91.34 | 358374178 | 0 |
| 21.92.91.35 | 358374179 | 0 |
| 21.92.91.36 | 358374180 | 0 |
| 21.92.91.37 | 358374181 | 0 |
| 21.92.91.38 | 358374182 | 0 |
| 21.92.91.39 | 358374183 | 0 |
| 21.92.91.40 | 358374184 | 0 |
| 21.92.91.41 | 358374185 | 0 |
| 21.92.91.42 | 358374186 | 0 |
| 21.92.91.43 | 358374187 | 0 |
| 21.92.91.44 | 358374188 | 0 |
| 21.92.91.45 | 358374189 | 0 |
| 21.92.91.46 | 358374190 | 0 |
| 21.92.91.47 | 358374191 | 0 |
| 21.92.91.48 | 358374192 | 0 |
| 21.92.91.49 | 358374193 | 0 |
| 21.92.91.50 | 358374194 | 0 |
| 21.92.91.51 | 358374195 | 0 |
| 21.92.91.52 | 358374196 | 0 |
| 21.92.91.53 | 358374197 | 0 |
| 21.92.91.54 | 358374198 | 0 |
| 21.92.91.55 | 358374199 | 0 |
| 21.92.91.56 | 358374200 | 0 |
| 21.92.91.57 | 358374201 | 0 |
| 21.92.91.58 | 358374202 | 0 |
| 21.92.91.59 | 358374203 | 0 |
| 21.92.91.60 | 358374204 | 0 |
| 21.92.91.61 | 358374205 | 0 |
| 21.92.91.62 | 358374206 | 0 |
| 21.92.91.63 | 358374207 | 0 |
| 21.92.91.64 | 358374208 | 0 |
| 21.92.91.65 | 358374209 | 0 |
| 21.92.91.66 | 358374210 | 0 |
| 21.92.91.67 | 358374211 | 0 |
| 21.92.91.68 | 358374212 | 0 |
| 21.92.91.69 | 358374213 | 0 |
| 21.92.91.70 | 358374214 | 0 |
| 21.92.91.71 | 358374215 | 0 |
| 21.92.91.72 | 358374216 | 0 |
| 21.92.91.73 | 358374217 | 0 |
| 21.92.91.74 | 358374218 | 0 |
| 21.92.91.75 | 358374219 | 0 |
| 21.92.91.76 | 358374220 | 0 |
| 21.92.91.77 | 358374221 | 0 |
| 21.92.91.78 | 358374222 | 0 |
| 21.92.91.79 | 358374223 | 0 |
| 21.92.91.80 | 358374224 | 0 |
| 21.92.91.81 | 358374225 | 0 |
| 21.92.91.82 | 358374226 | 0 |
| 21.92.91.83 | 358374227 | 0 |
| 21.92.91.84 | 358374228 | 0 |
| 21.92.91.85 | 358374229 | 0 |