La dirección IP 131.16.21 es proporcionada por DoD Network Information Center, que es propiedad de la CIDR (Classless Inter-Domain Routing) 131.16.0.0/16, IP entre 131.16.0.0 a 131.16.255.255 ). El número de sistema autónomo (ASN) es 721.
| ASN | 721 |
| IP que comienzan con | 131.16.0.0 |
| IP que termina con | 131.16.255.255 |
| ASN Nombre | DoD Network Information Center |
| CDIR | 131.16.0.0/16 |
| IP numérica | |
| Registe | arin |
| Última actualización | 31/10/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Montgomery | 32,4045 | -86,2459 | 2017-10-31 |
| MaxMind | US | Estados Unidos | - | Montgomery | 32,404 | -86,2539 | 2017-10-31 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 131.16.21.0 | 2198869248 | 0 |
| 131.16.21.1 | 2198869249 | 0 |
| 131.16.21.2 | 2198869250 | 0 |
| 131.16.21.3 | 2198869251 | 0 |
| 131.16.21.4 | 2198869252 | 0 |
| 131.16.21.5 | 2198869253 | 0 |
| 131.16.21.6 | 2198869254 | 0 |
| 131.16.21.7 | 2198869255 | 0 |
| 131.16.21.8 | 2198869256 | 0 |
| 131.16.21.9 | 2198869257 | 0 |
| 131.16.21.10 | 2198869258 | 0 |
| 131.16.21.11 | 2198869259 | 0 |
| 131.16.21.12 | 2198869260 | 0 |
| 131.16.21.13 | 2198869261 | 0 |
| 131.16.21.14 | 2198869262 | 0 |
| 131.16.21.15 | 2198869263 | 0 |
| 131.16.21.16 | 2198869264 | 0 |
| 131.16.21.17 | 2198869265 | 0 |
| 131.16.21.18 | 2198869266 | 0 |
| 131.16.21.19 | 2198869267 | 0 |
| 131.16.21.20 | 2198869268 | 0 |
| 131.16.21.21 | 2198869269 | 0 |
| 131.16.21.22 | 2198869270 | 0 |
| 131.16.21.23 | 2198869271 | 0 |
| 131.16.21.24 | 2198869272 | 0 |
| 131.16.21.25 | 2198869273 | 0 |
| 131.16.21.26 | 2198869274 | 0 |
| 131.16.21.27 | 2198869275 | 0 |
| 131.16.21.28 | 2198869276 | 0 |
| 131.16.21.29 | 2198869277 | 0 |
| 131.16.21.30 | 2198869278 | 0 |
| 131.16.21.31 | 2198869279 | 0 |
| 131.16.21.32 | 2198869280 | 0 |
| 131.16.21.33 | 2198869281 | 0 |
| 131.16.21.34 | 2198869282 | 0 |
| 131.16.21.35 | 2198869283 | 0 |
| 131.16.21.36 | 2198869284 | 0 |
| 131.16.21.37 | 2198869285 | 0 |
| 131.16.21.38 | 2198869286 | 0 |
| 131.16.21.39 | 2198869287 | 0 |
| 131.16.21.40 | 2198869288 | 0 |
| 131.16.21.41 | 2198869289 | 0 |
| 131.16.21.42 | 2198869290 | 0 |
| 131.16.21.43 | 2198869291 | 0 |
| 131.16.21.44 | 2198869292 | 0 |
| 131.16.21.45 | 2198869293 | 0 |
| 131.16.21.46 | 2198869294 | 0 |
| 131.16.21.47 | 2198869295 | 0 |
| 131.16.21.48 | 2198869296 | 0 |
| 131.16.21.49 | 2198869297 | 0 |
| 131.16.21.50 | 2198869298 | 0 |
| 131.16.21.51 | 2198869299 | 0 |
| 131.16.21.52 | 2198869300 | 0 |
| 131.16.21.53 | 2198869301 | 0 |
| 131.16.21.54 | 2198869302 | 0 |
| 131.16.21.55 | 2198869303 | 0 |
| 131.16.21.56 | 2198869304 | 0 |
| 131.16.21.57 | 2198869305 | 0 |
| 131.16.21.58 | 2198869306 | 0 |
| 131.16.21.59 | 2198869307 | 0 |
| 131.16.21.60 | 2198869308 | 0 |
| 131.16.21.61 | 2198869309 | 0 |
| 131.16.21.62 | 2198869310 | 0 |
| 131.16.21.63 | 2198869311 | 0 |
| 131.16.21.64 | 2198869312 | 0 |
| 131.16.21.65 | 2198869313 | 0 |
| 131.16.21.66 | 2198869314 | 0 |
| 131.16.21.67 | 2198869315 | 0 |
| 131.16.21.68 | 2198869316 | 0 |
| 131.16.21.69 | 2198869317 | 0 |
| 131.16.21.70 | 2198869318 | 0 |
| 131.16.21.71 | 2198869319 | 0 |
| 131.16.21.72 | 2198869320 | 0 |
| 131.16.21.73 | 2198869321 | 0 |
| 131.16.21.74 | 2198869322 | 0 |
| 131.16.21.75 | 2198869323 | 0 |
| 131.16.21.76 | 2198869324 | 0 |
| 131.16.21.77 | 2198869325 | 0 |
| 131.16.21.78 | 2198869326 | 0 |
| 131.16.21.79 | 2198869327 | 0 |
| 131.16.21.80 | 2198869328 | 0 |
| 131.16.21.81 | 2198869329 | 0 |
| 131.16.21.82 | 2198869330 | 0 |
| 131.16.21.83 | 2198869331 | 0 |
| 131.16.21.84 | 2198869332 | 0 |
| 131.16.21.85 | 2198869333 | 0 |