The IP address 21.231.3 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 | 01/12/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | ES | Spain | - | Madrid | 40.4165 | -3.7026 | 2019-12-01 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2019-12-01 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.231.3.0 | 367461120 | 0 |
| 21.231.3.1 | 367461121 | 0 |
| 21.231.3.2 | 367461122 | 0 |
| 21.231.3.3 | 367461123 | 0 |
| 21.231.3.4 | 367461124 | 0 |
| 21.231.3.5 | 367461125 | 0 |
| 21.231.3.6 | 367461126 | 0 |
| 21.231.3.7 | 367461127 | 0 |
| 21.231.3.8 | 367461128 | 0 |
| 21.231.3.9 | 367461129 | 0 |
| 21.231.3.10 | 367461130 | 0 |
| 21.231.3.11 | 367461131 | 0 |
| 21.231.3.12 | 367461132 | 0 |
| 21.231.3.13 | 367461133 | 0 |
| 21.231.3.14 | 367461134 | 0 |
| 21.231.3.15 | 367461135 | 0 |
| 21.231.3.16 | 367461136 | 0 |
| 21.231.3.17 | 367461137 | 0 |
| 21.231.3.18 | 367461138 | 0 |
| 21.231.3.19 | 367461139 | 0 |
| 21.231.3.20 | 367461140 | 0 |
| 21.231.3.21 | 367461141 | 0 |
| 21.231.3.22 | 367461142 | 0 |
| 21.231.3.23 | 367461143 | 0 |
| 21.231.3.24 | 367461144 | 0 |
| 21.231.3.25 | 367461145 | 0 |
| 21.231.3.26 | 367461146 | 0 |
| 21.231.3.27 | 367461147 | 0 |
| 21.231.3.28 | 367461148 | 0 |
| 21.231.3.29 | 367461149 | 0 |
| 21.231.3.30 | 367461150 | 0 |
| 21.231.3.31 | 367461151 | 0 |
| 21.231.3.32 | 367461152 | 0 |
| 21.231.3.33 | 367461153 | 0 |
| 21.231.3.34 | 367461154 | 0 |
| 21.231.3.35 | 367461155 | 0 |
| 21.231.3.36 | 367461156 | 0 |
| 21.231.3.37 | 367461157 | 0 |
| 21.231.3.38 | 367461158 | 0 |
| 21.231.3.39 | 367461159 | 0 |
| 21.231.3.40 | 367461160 | 0 |
| 21.231.3.41 | 367461161 | 0 |
| 21.231.3.42 | 367461162 | 0 |
| 21.231.3.43 | 367461163 | 0 |
| 21.231.3.44 | 367461164 | 0 |
| 21.231.3.45 | 367461165 | 0 |
| 21.231.3.46 | 367461166 | 0 |
| 21.231.3.47 | 367461167 | 0 |
| 21.231.3.48 | 367461168 | 0 |
| 21.231.3.49 | 367461169 | 0 |
| 21.231.3.50 | 367461170 | 0 |
| 21.231.3.51 | 367461171 | 0 |
| 21.231.3.52 | 367461172 | 0 |
| 21.231.3.53 | 367461173 | 0 |
| 21.231.3.54 | 367461174 | 0 |
| 21.231.3.55 | 367461175 | 0 |
| 21.231.3.56 | 367461176 | 0 |
| 21.231.3.57 | 367461177 | 0 |
| 21.231.3.58 | 367461178 | 0 |
| 21.231.3.59 | 367461179 | 0 |
| 21.231.3.60 | 367461180 | 0 |
| 21.231.3.61 | 367461181 | 0 |
| 21.231.3.62 | 367461182 | 0 |
| 21.231.3.63 | 367461183 | 0 |
| 21.231.3.64 | 367461184 | 0 |
| 21.231.3.65 | 367461185 | 0 |
| 21.231.3.66 | 367461186 | 0 |
| 21.231.3.67 | 367461187 | 0 |
| 21.231.3.68 | 367461188 | 0 |
| 21.231.3.69 | 367461189 | 0 |
| 21.231.3.70 | 367461190 | 0 |
| 21.231.3.71 | 367461191 | 0 |
| 21.231.3.72 | 367461192 | 0 |
| 21.231.3.73 | 367461193 | 0 |
| 21.231.3.74 | 367461194 | 0 |
| 21.231.3.75 | 367461195 | 0 |
| 21.231.3.76 | 367461196 | 0 |
| 21.231.3.77 | 367461197 | 0 |
| 21.231.3.78 | 367461198 | 0 |
| 21.231.3.79 | 367461199 | 0 |
| 21.231.3.80 | 367461200 | 0 |
| 21.231.3.81 | 367461201 | 0 |
| 21.231.3.82 | 367461202 | 0 |
| 21.231.3.83 | 367461203 | 0 |
| 21.231.3.84 | 367461204 | 0 |
| 21.231.3.85 | 367461205 | 0 |