L'indirizzo IP 21.74.31 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 | 27/07/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2017-07-26 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-07-26 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.74.31.0 | 357179136 | 0 |
| 21.74.31.1 | 357179137 | 0 |
| 21.74.31.2 | 357179138 | 0 |
| 21.74.31.3 | 357179139 | 0 |
| 21.74.31.4 | 357179140 | 0 |
| 21.74.31.5 | 357179141 | 0 |
| 21.74.31.6 | 357179142 | 0 |
| 21.74.31.7 | 357179143 | 0 |
| 21.74.31.8 | 357179144 | 0 |
| 21.74.31.9 | 357179145 | 0 |
| 21.74.31.10 | 357179146 | 0 |
| 21.74.31.11 | 357179147 | 0 |
| 21.74.31.12 | 357179148 | 0 |
| 21.74.31.13 | 357179149 | 0 |
| 21.74.31.14 | 357179150 | 0 |
| 21.74.31.15 | 357179151 | 0 |
| 21.74.31.16 | 357179152 | 0 |
| 21.74.31.17 | 357179153 | 0 |
| 21.74.31.18 | 357179154 | 0 |
| 21.74.31.19 | 357179155 | 0 |
| 21.74.31.20 | 357179156 | 0 |
| 21.74.31.21 | 357179157 | 0 |
| 21.74.31.22 | 357179158 | 0 |
| 21.74.31.23 | 357179159 | 0 |
| 21.74.31.24 | 357179160 | 0 |
| 21.74.31.25 | 357179161 | 0 |
| 21.74.31.26 | 357179162 | 0 |
| 21.74.31.27 | 357179163 | 0 |
| 21.74.31.28 | 357179164 | 0 |
| 21.74.31.29 | 357179165 | 0 |
| 21.74.31.30 | 357179166 | 0 |
| 21.74.31.31 | 357179167 | 0 |
| 21.74.31.32 | 357179168 | 0 |
| 21.74.31.33 | 357179169 | 0 |
| 21.74.31.34 | 357179170 | 0 |
| 21.74.31.35 | 357179171 | 0 |
| 21.74.31.36 | 357179172 | 0 |
| 21.74.31.37 | 357179173 | 0 |
| 21.74.31.38 | 357179174 | 0 |
| 21.74.31.39 | 357179175 | 0 |
| 21.74.31.40 | 357179176 | 0 |
| 21.74.31.41 | 357179177 | 0 |
| 21.74.31.42 | 357179178 | 0 |
| 21.74.31.43 | 357179179 | 0 |
| 21.74.31.44 | 357179180 | 0 |
| 21.74.31.45 | 357179181 | 0 |
| 21.74.31.46 | 357179182 | 0 |
| 21.74.31.47 | 357179183 | 0 |
| 21.74.31.48 | 357179184 | 0 |
| 21.74.31.49 | 357179185 | 0 |
| 21.74.31.50 | 357179186 | 0 |
| 21.74.31.51 | 357179187 | 0 |
| 21.74.31.52 | 357179188 | 0 |
| 21.74.31.53 | 357179189 | 0 |
| 21.74.31.54 | 357179190 | 0 |
| 21.74.31.55 | 357179191 | 0 |
| 21.74.31.56 | 357179192 | 0 |
| 21.74.31.57 | 357179193 | 0 |
| 21.74.31.58 | 357179194 | 0 |
| 21.74.31.59 | 357179195 | 0 |
| 21.74.31.60 | 357179196 | 0 |
| 21.74.31.61 | 357179197 | 0 |
| 21.74.31.62 | 357179198 | 0 |
| 21.74.31.63 | 357179199 | 0 |
| 21.74.31.64 | 357179200 | 0 |
| 21.74.31.65 | 357179201 | 0 |
| 21.74.31.66 | 357179202 | 0 |
| 21.74.31.67 | 357179203 | 0 |
| 21.74.31.68 | 357179204 | 0 |
| 21.74.31.69 | 357179205 | 0 |
| 21.74.31.70 | 357179206 | 0 |
| 21.74.31.71 | 357179207 | 0 |
| 21.74.31.72 | 357179208 | 0 |
| 21.74.31.73 | 357179209 | 0 |
| 21.74.31.74 | 357179210 | 0 |
| 21.74.31.75 | 357179211 | 0 |
| 21.74.31.76 | 357179212 | 0 |
| 21.74.31.77 | 357179213 | 0 |
| 21.74.31.78 | 357179214 | 0 |
| 21.74.31.79 | 357179215 | 0 |
| 21.74.31.80 | 357179216 | 0 |
| 21.74.31.81 | 357179217 | 0 |
| 21.74.31.82 | 357179218 | 0 |
| 21.74.31.83 | 357179219 | 0 |
| 21.74.31.84 | 357179220 | 0 |
| 21.74.31.85 | 357179221 | 0 |