The IP address 131.68.21 is provided by DoD Network Information Center, it's belong to the CDIR (Classless Inter-Domain Routing) 131.64.0.0/13 (range 131.64.0.0 to 131.71.255.255). The autonomous system number (ASN) is 721.
| ASN | 721 |
| IP starting by | 131.64.0.0 |
| IP ending by | 131.71.255.255 |
| ASN Name | DoD Network Information Center |
| CDIR | 131.64.0.0/13 |
| Numerical IP | |
| Registry | |
| Last update | 01/01/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-12-31 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-12-31 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 131.68.21.0 | 2202277120 | 0 |
| 131.68.21.1 | 2202277121 | 0 |
| 131.68.21.2 | 2202277122 | 0 |
| 131.68.21.3 | 2202277123 | 0 |
| 131.68.21.4 | 2202277124 | 0 |
| 131.68.21.5 | 2202277125 | 0 |
| 131.68.21.6 | 2202277126 | 0 |
| 131.68.21.7 | 2202277127 | 0 |
| 131.68.21.8 | 2202277128 | 0 |
| 131.68.21.9 | 2202277129 | 0 |
| 131.68.21.10 | 2202277130 | 0 |
| 131.68.21.11 | 2202277131 | 0 |
| 131.68.21.12 | 2202277132 | 0 |
| 131.68.21.13 | 2202277133 | 0 |
| 131.68.21.14 | 2202277134 | 0 |
| 131.68.21.15 | 2202277135 | 0 |
| 131.68.21.16 | 2202277136 | 0 |
| 131.68.21.17 | 2202277137 | 0 |
| 131.68.21.18 | 2202277138 | 0 |
| 131.68.21.19 | 2202277139 | 0 |
| 131.68.21.20 | 2202277140 | 0 |
| 131.68.21.21 | 2202277141 | 0 |
| 131.68.21.22 | 2202277142 | 0 |
| 131.68.21.23 | 2202277143 | 0 |
| 131.68.21.24 | 2202277144 | 0 |
| 131.68.21.25 | 2202277145 | 0 |
| 131.68.21.26 | 2202277146 | 0 |
| 131.68.21.27 | 2202277147 | 0 |
| 131.68.21.28 | 2202277148 | 0 |
| 131.68.21.29 | 2202277149 | 0 |
| 131.68.21.30 | 2202277150 | 0 |
| 131.68.21.31 | 2202277151 | 0 |
| 131.68.21.32 | 2202277152 | 0 |
| 131.68.21.33 | 2202277153 | 0 |
| 131.68.21.34 | 2202277154 | 0 |
| 131.68.21.35 | 2202277155 | 0 |
| 131.68.21.36 | 2202277156 | 0 |
| 131.68.21.37 | 2202277157 | 0 |
| 131.68.21.38 | 2202277158 | 0 |
| 131.68.21.39 | 2202277159 | 0 |
| 131.68.21.40 | 2202277160 | 0 |
| 131.68.21.41 | 2202277161 | 0 |
| 131.68.21.42 | 2202277162 | 0 |
| 131.68.21.43 | 2202277163 | 0 |
| 131.68.21.44 | 2202277164 | 0 |
| 131.68.21.45 | 2202277165 | 0 |
| 131.68.21.46 | 2202277166 | 0 |
| 131.68.21.47 | 2202277167 | 0 |
| 131.68.21.48 | 2202277168 | 0 |
| 131.68.21.49 | 2202277169 | 0 |
| 131.68.21.50 | 2202277170 | 0 |
| 131.68.21.51 | 2202277171 | 0 |
| 131.68.21.52 | 2202277172 | 0 |
| 131.68.21.53 | 2202277173 | 0 |
| 131.68.21.54 | 2202277174 | 0 |
| 131.68.21.55 | 2202277175 | 0 |
| 131.68.21.56 | 2202277176 | 0 |
| 131.68.21.57 | 2202277177 | 0 |
| 131.68.21.58 | 2202277178 | 0 |
| 131.68.21.59 | 2202277179 | 0 |
| 131.68.21.60 | 2202277180 | 0 |
| 131.68.21.61 | 2202277181 | 0 |
| 131.68.21.62 | 2202277182 | 0 |
| 131.68.21.63 | 2202277183 | 0 |
| 131.68.21.64 | 2202277184 | 0 |
| 131.68.21.65 | 2202277185 | 0 |
| 131.68.21.66 | 2202277186 | 0 |
| 131.68.21.67 | 2202277187 | 0 |
| 131.68.21.68 | 2202277188 | 0 |
| 131.68.21.69 | 2202277189 | 0 |
| 131.68.21.70 | 2202277190 | 0 |
| 131.68.21.71 | 2202277191 | 0 |
| 131.68.21.72 | 2202277192 | 0 |
| 131.68.21.73 | 2202277193 | 0 |
| 131.68.21.74 | 2202277194 | 0 |
| 131.68.21.75 | 2202277195 | 0 |
| 131.68.21.76 | 2202277196 | 0 |
| 131.68.21.77 | 2202277197 | 0 |
| 131.68.21.78 | 2202277198 | 0 |
| 131.68.21.79 | 2202277199 | 0 |
| 131.68.21.80 | 2202277200 | 0 |
| 131.68.21.81 | 2202277201 | 0 |
| 131.68.21.82 | 2202277202 | 0 |
| 131.68.21.83 | 2202277203 | 0 |
| 131.68.21.84 | 2202277204 | 0 |
| 131.68.21.85 | 2202277205 | 0 |