The IP address 131.31.31 is provided by DoD Network Information Center, it's belong to the CDIR (Classless Inter-Domain Routing) 131.32.0.0/11 (range 131.32.0.0 to 131.63.255.255). The autonomous system number (ASN) is 721.
| ASN | 721 |
| IP starting by | 131.32.0.0 |
| IP ending by | 131.63.255.255 |
| ASN Name | DoD Network Information Center |
| CDIR | 131.32.0.0/11 |
| Numerical IP | |
| Registry | |
| Last update | 28/03/2020 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Montgomery | 32.4045 | -86.2459 | 2020-03-28 |
| MaxMind | US | United States | - | Montgomery | 32.404 | -86.2539 | 2020-03-28 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 131.31.31.0 | 2199854848 | 0 |
| 131.31.31.1 | 2199854849 | 0 |
| 131.31.31.2 | 2199854850 | 0 |
| 131.31.31.3 | 2199854851 | 0 |
| 131.31.31.4 | 2199854852 | 0 |
| 131.31.31.5 | 2199854853 | 0 |
| 131.31.31.6 | 2199854854 | 0 |
| 131.31.31.7 | 2199854855 | 0 |
| 131.31.31.8 | 2199854856 | 0 |
| 131.31.31.9 | 2199854857 | 0 |
| 131.31.31.10 | 2199854858 | 0 |
| 131.31.31.11 | 2199854859 | 0 |
| 131.31.31.12 | 2199854860 | 0 |
| 131.31.31.13 | 2199854861 | 0 |
| 131.31.31.14 | 2199854862 | 0 |
| 131.31.31.15 | 2199854863 | 0 |
| 131.31.31.16 | 2199854864 | 0 |
| 131.31.31.17 | 2199854865 | 0 |
| 131.31.31.18 | 2199854866 | 0 |
| 131.31.31.19 | 2199854867 | 0 |
| 131.31.31.20 | 2199854868 | 0 |
| 131.31.31.21 | 2199854869 | 0 |
| 131.31.31.22 | 2199854870 | 0 |
| 131.31.31.23 | 2199854871 | 0 |
| 131.31.31.24 | 2199854872 | 0 |
| 131.31.31.25 | 2199854873 | 0 |
| 131.31.31.26 | 2199854874 | 0 |
| 131.31.31.27 | 2199854875 | 0 |
| 131.31.31.28 | 2199854876 | 0 |
| 131.31.31.29 | 2199854877 | 0 |
| 131.31.31.30 | 2199854878 | 0 |
| 131.31.31.31 | 2199854879 | 0 |
| 131.31.31.32 | 2199854880 | 0 |
| 131.31.31.33 | 2199854881 | 0 |
| 131.31.31.34 | 2199854882 | 0 |
| 131.31.31.35 | 2199854883 | 0 |
| 131.31.31.36 | 2199854884 | 0 |
| 131.31.31.37 | 2199854885 | 0 |
| 131.31.31.38 | 2199854886 | 0 |
| 131.31.31.39 | 2199854887 | 0 |
| 131.31.31.40 | 2199854888 | 0 |
| 131.31.31.41 | 2199854889 | 0 |
| 131.31.31.42 | 2199854890 | 0 |
| 131.31.31.43 | 2199854891 | 0 |
| 131.31.31.44 | 2199854892 | 0 |
| 131.31.31.45 | 2199854893 | 0 |
| 131.31.31.46 | 2199854894 | 0 |
| 131.31.31.47 | 2199854895 | 0 |
| 131.31.31.48 | 2199854896 | 0 |
| 131.31.31.49 | 2199854897 | 0 |
| 131.31.31.50 | 2199854898 | 0 |
| 131.31.31.51 | 2199854899 | 0 |
| 131.31.31.52 | 2199854900 | 0 |
| 131.31.31.53 | 2199854901 | 0 |
| 131.31.31.54 | 2199854902 | 0 |
| 131.31.31.55 | 2199854903 | 0 |
| 131.31.31.56 | 2199854904 | 0 |
| 131.31.31.57 | 2199854905 | 0 |
| 131.31.31.58 | 2199854906 | 0 |
| 131.31.31.59 | 2199854907 | 0 |
| 131.31.31.60 | 2199854908 | 0 |
| 131.31.31.61 | 2199854909 | 0 |
| 131.31.31.62 | 2199854910 | 0 |
| 131.31.31.63 | 2199854911 | 0 |
| 131.31.31.64 | 2199854912 | 0 |
| 131.31.31.65 | 2199854913 | 0 |
| 131.31.31.66 | 2199854914 | 0 |
| 131.31.31.67 | 2199854915 | 0 |
| 131.31.31.68 | 2199854916 | 0 |
| 131.31.31.69 | 2199854917 | 0 |
| 131.31.31.70 | 2199854918 | 0 |
| 131.31.31.71 | 2199854919 | 0 |
| 131.31.31.72 | 2199854920 | 0 |
| 131.31.31.73 | 2199854921 | 0 |
| 131.31.31.74 | 2199854922 | 0 |
| 131.31.31.75 | 2199854923 | 0 |
| 131.31.31.76 | 2199854924 | 0 |
| 131.31.31.77 | 2199854925 | 0 |
| 131.31.31.78 | 2199854926 | 0 |
| 131.31.31.79 | 2199854927 | 0 |
| 131.31.31.80 | 2199854928 | 0 |
| 131.31.31.81 | 2199854929 | 0 |
| 131.31.31.82 | 2199854930 | 0 |
| 131.31.31.83 | 2199854931 | 0 |
| 131.31.31.84 | 2199854932 | 0 |
| 131.31.31.85 | 2199854933 | 0 |