La dirección IP 81.21.131 es proporcionada por , que es propiedad de la CIDR (Classless Inter-Domain Routing) 81.21.128.0/21, IP entre 81.21.128.0 a 81.21.135.255 ). El número de sistema autónomo (ASN) es 12505.
| ASN | 12505 |
| IP que comienzan con | 81.21.128.0 |
| IP que termina con | 81.21.135.255 |
| ASN Nombre | |
| CDIR | 81.21.128.0/21 |
| IP numérica | |
| Registe | ripencc |
| Última actualización | 16/08/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | IT | Italia | - | Milan | 45,4643 | 9,1895 | 2017-08-16 |
| MaxMind | IT | Italia | - | Milan | 45,4643 | 9,1895 | 2017-08-16 |
| Whois | IT | - | - | - | 13 | 42 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.21.131.0 | 1360364288 | 0 |
| 81.21.131.1 | 1360364289 | 0 |
| 81.21.131.2 | 1360364290 | 0 |
| 81.21.131.3 | 1360364291 | 0 |
| 81.21.131.4 | 1360364292 | 0 |
| 81.21.131.5 | 1360364293 | 0 |
| 81.21.131.6 | 1360364294 | 0 |
| 81.21.131.7 | 1360364295 | 0 |
| 81.21.131.8 | 1360364296 | 0 |
| 81.21.131.9 | 1360364297 | 0 |
| 81.21.131.10 | 1360364298 | 0 |
| 81.21.131.11 | 1360364299 | 0 |
| 81.21.131.12 | 1360364300 | 0 |
| 81.21.131.13 | 1360364301 | 0 |
| 81.21.131.14 | 1360364302 | 0 |
| 81.21.131.15 | 1360364303 | 0 |
| 81.21.131.16 | 1360364304 | 0 |
| 81.21.131.17 | 1360364305 | 0 |
| 81.21.131.18 | 1360364306 | 0 |
| 81.21.131.19 | 1360364307 | 0 |
| 81.21.131.20 | 1360364308 | 0 |
| 81.21.131.21 | 1360364309 | 0 |
| 81.21.131.22 | 1360364310 | 0 |
| 81.21.131.23 | 1360364311 | 0 |
| 81.21.131.24 | 1360364312 | 0 |
| 81.21.131.25 | 1360364313 | 0 |
| 81.21.131.26 | 1360364314 | 0 |
| 81.21.131.27 | 1360364315 | 0 |
| 81.21.131.28 | 1360364316 | 0 |
| 81.21.131.29 | 1360364317 | 0 |
| 81.21.131.30 | 1360364318 | 0 |
| 81.21.131.31 | 1360364319 | 0 |
| 81.21.131.32 | 1360364320 | 0 |
| 81.21.131.33 | 1360364321 | 0 |
| 81.21.131.34 | 1360364322 | 0 |
| 81.21.131.35 | 1360364323 | 0 |
| 81.21.131.36 | 1360364324 | 0 |
| 81.21.131.37 | 1360364325 | 0 |
| 81.21.131.38 | 1360364326 | 0 |
| 81.21.131.39 | 1360364327 | 0 |
| 81.21.131.40 | 1360364328 | 0 |
| 81.21.131.41 | 1360364329 | 0 |
| 81.21.131.42 | 1360364330 | 0 |
| 81.21.131.43 | 1360364331 | 0 |
| 81.21.131.44 | 1360364332 | 0 |
| 81.21.131.45 | 1360364333 | 0 |
| 81.21.131.46 | 1360364334 | 0 |
| 81.21.131.47 | 1360364335 | 0 |
| 81.21.131.48 | 1360364336 | 0 |
| 81.21.131.49 | 1360364337 | 0 |
| 81.21.131.50 | 1360364338 | 0 |
| 81.21.131.51 | 1360364339 | 0 |
| 81.21.131.52 | 1360364340 | 0 |
| 81.21.131.53 | 1360364341 | 0 |
| 81.21.131.54 | 1360364342 | 0 |
| 81.21.131.55 | 1360364343 | 0 |
| 81.21.131.56 | 1360364344 | 0 |
| 81.21.131.57 | 1360364345 | 0 |
| 81.21.131.58 | 1360364346 | 0 |
| 81.21.131.59 | 1360364347 | 0 |
| 81.21.131.60 | 1360364348 | 0 |
| 81.21.131.61 | 1360364349 | 0 |
| 81.21.131.62 | 1360364350 | 0 |
| 81.21.131.63 | 1360364351 | 0 |
| 81.21.131.64 | 1360364352 | 0 |
| 81.21.131.65 | 1360364353 | 0 |
| 81.21.131.66 | 1360364354 | 0 |
| 81.21.131.67 | 1360364355 | 0 |
| 81.21.131.68 | 1360364356 | 0 |
| 81.21.131.69 | 1360364357 | 0 |
| 81.21.131.70 | 1360364358 | 0 |
| 81.21.131.71 | 1360364359 | 0 |
| 81.21.131.72 | 1360364360 | 0 |
| 81.21.131.73 | 1360364361 | 0 |
| 81.21.131.74 | 1360364362 | 0 |
| 81.21.131.75 | 1360364363 | 0 |
| 81.21.131.76 | 1360364364 | 0 |
| 81.21.131.77 | 1360364365 | 0 |
| 81.21.131.78 | 1360364366 | 0 |
| 81.21.131.79 | 1360364367 | 0 |
| 81.21.131.80 | 1360364368 | 0 |
| 81.21.131.81 | 1360364369 | 0 |
| 81.21.131.82 | 1360364370 | 0 |
| 81.21.131.83 | 1360364371 | 0 |
| 81.21.131.84 | 1360364372 | 0 |
| 81.21.131.85 | 1360364373 | 0 |