The IP address 131.56.21 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 | arin |
| Last update | 03/08/2020 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2020-08-03 |
| MaxMind | US | United States | - | Montgomery | 32.404 | -86.2539 | 2020-08-03 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 131.56.21.0 | 2201490688 | 0 |
| 131.56.21.1 | 2201490689 | 0 |
| 131.56.21.2 | 2201490690 | 0 |
| 131.56.21.3 | 2201490691 | 0 |
| 131.56.21.4 | 2201490692 | 0 |
| 131.56.21.5 | 2201490693 | 0 |
| 131.56.21.6 | 2201490694 | 0 |
| 131.56.21.7 | 2201490695 | 0 |
| 131.56.21.8 | 2201490696 | 0 |
| 131.56.21.9 | 2201490697 | 0 |
| 131.56.21.10 | 2201490698 | 0 |
| 131.56.21.11 | 2201490699 | 0 |
| 131.56.21.12 | 2201490700 | 0 |
| 131.56.21.13 | 2201490701 | 0 |
| 131.56.21.14 | 2201490702 | 0 |
| 131.56.21.15 | 2201490703 | 0 |
| 131.56.21.16 | 2201490704 | 0 |
| 131.56.21.17 | 2201490705 | 0 |
| 131.56.21.18 | 2201490706 | 0 |
| 131.56.21.19 | 2201490707 | 0 |
| 131.56.21.20 | 2201490708 | 0 |
| 131.56.21.21 | 2201490709 | 0 |
| 131.56.21.22 | 2201490710 | 0 |
| 131.56.21.23 | 2201490711 | 0 |
| 131.56.21.24 | 2201490712 | 0 |
| 131.56.21.25 | 2201490713 | 0 |
| 131.56.21.26 | 2201490714 | 0 |
| 131.56.21.27 | 2201490715 | 0 |
| 131.56.21.28 | 2201490716 | 0 |
| 131.56.21.29 | 2201490717 | 0 |
| 131.56.21.30 | 2201490718 | 0 |
| 131.56.21.31 | 2201490719 | 0 |
| 131.56.21.32 | 2201490720 | 0 |
| 131.56.21.33 | 2201490721 | 0 |
| 131.56.21.34 | 2201490722 | 0 |
| 131.56.21.35 | 2201490723 | 0 |
| 131.56.21.36 | 2201490724 | 0 |
| 131.56.21.37 | 2201490725 | 0 |
| 131.56.21.38 | 2201490726 | 0 |
| 131.56.21.39 | 2201490727 | 0 |
| 131.56.21.40 | 2201490728 | 0 |
| 131.56.21.41 | 2201490729 | 0 |
| 131.56.21.42 | 2201490730 | 0 |
| 131.56.21.43 | 2201490731 | 0 |
| 131.56.21.44 | 2201490732 | 0 |
| 131.56.21.45 | 2201490733 | 0 |
| 131.56.21.46 | 2201490734 | 0 |
| 131.56.21.47 | 2201490735 | 0 |
| 131.56.21.48 | 2201490736 | 0 |
| 131.56.21.49 | 2201490737 | 0 |
| 131.56.21.50 | 2201490738 | 0 |
| 131.56.21.51 | 2201490739 | 0 |
| 131.56.21.52 | 2201490740 | 0 |
| 131.56.21.53 | 2201490741 | 0 |
| 131.56.21.54 | 2201490742 | 0 |
| 131.56.21.55 | 2201490743 | 0 |
| 131.56.21.56 | 2201490744 | 0 |
| 131.56.21.57 | 2201490745 | 0 |
| 131.56.21.58 | 2201490746 | 0 |
| 131.56.21.59 | 2201490747 | 0 |
| 131.56.21.60 | 2201490748 | 0 |
| 131.56.21.61 | 2201490749 | 0 |
| 131.56.21.62 | 2201490750 | 0 |
| 131.56.21.63 | 2201490751 | 0 |
| 131.56.21.64 | 2201490752 | 0 |
| 131.56.21.65 | 2201490753 | 0 |
| 131.56.21.66 | 2201490754 | 0 |
| 131.56.21.67 | 2201490755 | 0 |
| 131.56.21.68 | 2201490756 | 0 |
| 131.56.21.69 | 2201490757 | 0 |
| 131.56.21.70 | 2201490758 | 0 |
| 131.56.21.71 | 2201490759 | 0 |
| 131.56.21.72 | 2201490760 | 0 |
| 131.56.21.73 | 2201490761 | 0 |
| 131.56.21.74 | 2201490762 | 0 |
| 131.56.21.75 | 2201490763 | 0 |
| 131.56.21.76 | 2201490764 | 0 |
| 131.56.21.77 | 2201490765 | 0 |
| 131.56.21.78 | 2201490766 | 0 |
| 131.56.21.79 | 2201490767 | 0 |
| 131.56.21.80 | 2201490768 | 0 |
| 131.56.21.81 | 2201490769 | 0 |
| 131.56.21.82 | 2201490770 | 0 |
| 131.56.21.83 | 2201490771 | 0 |
| 131.56.21.84 | 2201490772 | 0 |
| 131.56.21.85 | 2201490773 | 0 |