Les adresses IP débutant par 131.4.221 sont fournies par DoD Network Information Center, elles appartiennent au CIDR (Classless Inter-Domain Routing) 131.4.0.0/15, le bloc IP comprant les adresses de 131.4.0.0 à 131.5.255.255). Le numéro de système autonome (ASN) est 721.
| ASN | 721 |
| IP commençant par | 131.4.0.0 |
| IP se terminant par | 131.5.255.255 |
| Nom ASN | DoD Network Information Center |
| CDIR | 131.4.0.0/15 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 06/04/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Montgomery | 32,4045 | -86,2459 | 2018-04-05 |
| MaxMind | US | États-Unis | - | Montgomery | 32,404 | -86,2539 | 2018-04-05 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 131.4.221.0 | 2198134016 | 0 |
| 131.4.221.1 | 2198134017 | 0 |
| 131.4.221.2 | 2198134018 | 0 |
| 131.4.221.3 | 2198134019 | 0 |
| 131.4.221.4 | 2198134020 | 0 |
| 131.4.221.5 | 2198134021 | 0 |
| 131.4.221.6 | 2198134022 | 0 |
| 131.4.221.7 | 2198134023 | 0 |
| 131.4.221.8 | 2198134024 | 0 |
| 131.4.221.9 | 2198134025 | 0 |
| 131.4.221.10 | 2198134026 | 0 |
| 131.4.221.11 | 2198134027 | 0 |
| 131.4.221.12 | 2198134028 | 0 |
| 131.4.221.13 | 2198134029 | 0 |
| 131.4.221.14 | 2198134030 | 0 |
| 131.4.221.15 | 2198134031 | 0 |
| 131.4.221.16 | 2198134032 | 0 |
| 131.4.221.17 | 2198134033 | 0 |
| 131.4.221.18 | 2198134034 | 0 |
| 131.4.221.19 | 2198134035 | 0 |
| 131.4.221.20 | 2198134036 | 0 |
| 131.4.221.21 | 2198134037 | 0 |
| 131.4.221.22 | 2198134038 | 0 |
| 131.4.221.23 | 2198134039 | 0 |
| 131.4.221.24 | 2198134040 | 0 |
| 131.4.221.25 | 2198134041 | 0 |
| 131.4.221.26 | 2198134042 | 0 |
| 131.4.221.27 | 2198134043 | 0 |
| 131.4.221.28 | 2198134044 | 0 |
| 131.4.221.29 | 2198134045 | 0 |
| 131.4.221.30 | 2198134046 | 0 |
| 131.4.221.31 | 2198134047 | 0 |
| 131.4.221.32 | 2198134048 | 0 |
| 131.4.221.33 | 2198134049 | 0 |
| 131.4.221.34 | 2198134050 | 0 |
| 131.4.221.35 | 2198134051 | 0 |
| 131.4.221.36 | 2198134052 | 0 |
| 131.4.221.37 | 2198134053 | 0 |
| 131.4.221.38 | 2198134054 | 0 |
| 131.4.221.39 | 2198134055 | 0 |
| 131.4.221.40 | 2198134056 | 0 |
| 131.4.221.41 | 2198134057 | 0 |
| 131.4.221.42 | 2198134058 | 0 |
| 131.4.221.43 | 2198134059 | 0 |
| 131.4.221.44 | 2198134060 | 0 |
| 131.4.221.45 | 2198134061 | 0 |
| 131.4.221.46 | 2198134062 | 0 |
| 131.4.221.47 | 2198134063 | 0 |
| 131.4.221.48 | 2198134064 | 0 |
| 131.4.221.49 | 2198134065 | 0 |
| 131.4.221.50 | 2198134066 | 0 |
| 131.4.221.51 | 2198134067 | 0 |
| 131.4.221.52 | 2198134068 | 0 |
| 131.4.221.53 | 2198134069 | 0 |
| 131.4.221.54 | 2198134070 | 0 |
| 131.4.221.55 | 2198134071 | 0 |
| 131.4.221.56 | 2198134072 | 0 |
| 131.4.221.57 | 2198134073 | 0 |
| 131.4.221.58 | 2198134074 | 0 |
| 131.4.221.59 | 2198134075 | 0 |
| 131.4.221.60 | 2198134076 | 0 |
| 131.4.221.61 | 2198134077 | 0 |
| 131.4.221.62 | 2198134078 | 0 |
| 131.4.221.63 | 2198134079 | 0 |
| 131.4.221.64 | 2198134080 | 0 |
| 131.4.221.65 | 2198134081 | 0 |
| 131.4.221.66 | 2198134082 | 0 |
| 131.4.221.67 | 2198134083 | 0 |
| 131.4.221.68 | 2198134084 | 0 |
| 131.4.221.69 | 2198134085 | 0 |
| 131.4.221.70 | 2198134086 | 0 |
| 131.4.221.71 | 2198134087 | 0 |
| 131.4.221.72 | 2198134088 | 0 |
| 131.4.221.73 | 2198134089 | 0 |
| 131.4.221.74 | 2198134090 | 0 |
| 131.4.221.75 | 2198134091 | 0 |
| 131.4.221.76 | 2198134092 | 0 |
| 131.4.221.77 | 2198134093 | 0 |
| 131.4.221.78 | 2198134094 | 0 |
| 131.4.221.79 | 2198134095 | 0 |
| 131.4.221.80 | 2198134096 | 0 |
| 131.4.221.81 | 2198134097 | 0 |
| 131.4.221.82 | 2198134098 | 0 |
| 131.4.221.83 | 2198134099 | 0 |
| 131.4.221.84 | 2198134100 | 0 |
| 131.4.221.85 | 2198134101 | 0 |