La dirección IP 131.31.21 es proporcionada por DoD Network Information Center, que es propiedad de la CIDR (Classless Inter-Domain Routing) 131.32.0.0/11, IP entre 131.32.0.0 a 131.63.255.255 ). El número de sistema autónomo (ASN) es 721.
| ASN | 721 |
| IP que comienzan con | 131.32.0.0 |
| IP que termina con | 131.63.255.255 |
| ASN Nombre | DoD Network Information Center |
| CDIR | 131.32.0.0/11 |
| IP numérica | |
| Registe | arin |
| Última actualización | 16/02/2020 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Montgomery | 32,4045 | -86,2459 | 2020-02-15 |
| MaxMind | US | Estados Unidos | - | Montgomery | 32,404 | -86,2539 | 2020-02-15 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 131.31.21.0 | 2199852288 | 0 |
| 131.31.21.1 | 2199852289 | 0 |
| 131.31.21.2 | 2199852290 | 0 |
| 131.31.21.3 | 2199852291 | 0 |
| 131.31.21.4 | 2199852292 | 0 |
| 131.31.21.5 | 2199852293 | 0 |
| 131.31.21.6 | 2199852294 | 0 |
| 131.31.21.7 | 2199852295 | 0 |
| 131.31.21.8 | 2199852296 | 0 |
| 131.31.21.9 | 2199852297 | 0 |
| 131.31.21.10 | 2199852298 | 0 |
| 131.31.21.11 | 2199852299 | 0 |
| 131.31.21.12 | 2199852300 | 0 |
| 131.31.21.13 | 2199852301 | 0 |
| 131.31.21.14 | 2199852302 | 0 |
| 131.31.21.15 | 2199852303 | 0 |
| 131.31.21.16 | 2199852304 | 0 |
| 131.31.21.17 | 2199852305 | 0 |
| 131.31.21.18 | 2199852306 | 0 |
| 131.31.21.19 | 2199852307 | 0 |
| 131.31.21.20 | 2199852308 | 0 |
| 131.31.21.21 | 2199852309 | 0 |
| 131.31.21.22 | 2199852310 | 0 |
| 131.31.21.23 | 2199852311 | 0 |
| 131.31.21.24 | 2199852312 | 0 |
| 131.31.21.25 | 2199852313 | 0 |
| 131.31.21.26 | 2199852314 | 0 |
| 131.31.21.27 | 2199852315 | 0 |
| 131.31.21.28 | 2199852316 | 0 |
| 131.31.21.29 | 2199852317 | 0 |
| 131.31.21.30 | 2199852318 | 0 |
| 131.31.21.31 | 2199852319 | 0 |
| 131.31.21.32 | 2199852320 | 0 |
| 131.31.21.33 | 2199852321 | 0 |
| 131.31.21.34 | 2199852322 | 0 |
| 131.31.21.35 | 2199852323 | 0 |
| 131.31.21.36 | 2199852324 | 0 |
| 131.31.21.37 | 2199852325 | 0 |
| 131.31.21.38 | 2199852326 | 0 |
| 131.31.21.39 | 2199852327 | 0 |
| 131.31.21.40 | 2199852328 | 0 |
| 131.31.21.41 | 2199852329 | 0 |
| 131.31.21.42 | 2199852330 | 0 |
| 131.31.21.43 | 2199852331 | 0 |
| 131.31.21.44 | 2199852332 | 0 |
| 131.31.21.45 | 2199852333 | 0 |
| 131.31.21.46 | 2199852334 | 0 |
| 131.31.21.47 | 2199852335 | 0 |
| 131.31.21.48 | 2199852336 | 0 |
| 131.31.21.49 | 2199852337 | 0 |
| 131.31.21.50 | 2199852338 | 0 |
| 131.31.21.51 | 2199852339 | 0 |
| 131.31.21.52 | 2199852340 | 0 |
| 131.31.21.53 | 2199852341 | 0 |
| 131.31.21.54 | 2199852342 | 0 |
| 131.31.21.55 | 2199852343 | 0 |
| 131.31.21.56 | 2199852344 | 0 |
| 131.31.21.57 | 2199852345 | 0 |
| 131.31.21.58 | 2199852346 | 0 |
| 131.31.21.59 | 2199852347 | 0 |
| 131.31.21.60 | 2199852348 | 0 |
| 131.31.21.61 | 2199852349 | 0 |
| 131.31.21.62 | 2199852350 | 0 |
| 131.31.21.63 | 2199852351 | 0 |
| 131.31.21.64 | 2199852352 | 0 |
| 131.31.21.65 | 2199852353 | 0 |
| 131.31.21.66 | 2199852354 | 0 |
| 131.31.21.67 | 2199852355 | 0 |
| 131.31.21.68 | 2199852356 | 0 |
| 131.31.21.69 | 2199852357 | 0 |
| 131.31.21.70 | 2199852358 | 0 |
| 131.31.21.71 | 2199852359 | 0 |
| 131.31.21.72 | 2199852360 | 0 |
| 131.31.21.73 | 2199852361 | 0 |
| 131.31.21.74 | 2199852362 | 0 |
| 131.31.21.75 | 2199852363 | 0 |
| 131.31.21.76 | 2199852364 | 0 |
| 131.31.21.77 | 2199852365 | 0 |
| 131.31.21.78 | 2199852366 | 0 |
| 131.31.21.79 | 2199852367 | 0 |
| 131.31.21.80 | 2199852368 | 0 |
| 131.31.21.81 | 2199852369 | 0 |
| 131.31.21.82 | 2199852370 | 0 |
| 131.31.21.83 | 2199852371 | 0 |
| 131.31.21.84 | 2199852372 | 0 |
| 131.31.21.85 | 2199852373 | 0 |