Les adresses IP débutant par 3.81.71 sont fournies par Level 3 Communications, Inc., elles appartiennent au CIDR (Classless Inter-Domain Routing) 4.0.0.0/8, le bloc IP comprant les adresses de 4.0.0.0 à 4.255.255.255). Le numéro de système autonome (ASN) est 3356.
| ASN | 3356 |
| IP commençant par | 4.0.0.0 |
| IP se terminant par | 4.255.255.255 |
| Nom ASN | Level 3 Communications, Inc. |
| CDIR | 4.0.0.0/8 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 24/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Fairfield | 41,2184 | -73,2517 | 2017-07-24 |
| MaxMind | US | États-Unis | - | Fairfield | 41,1412 | -73,2637 | 2017-07-24 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 3.81.71.0 | 55658240 | 0 |
| 3.81.71.1 | 55658241 | 0 |
| 3.81.71.2 | 55658242 | 0 |
| 3.81.71.3 | 55658243 | 0 |
| 3.81.71.4 | 55658244 | 0 |
| 3.81.71.5 | 55658245 | 0 |
| 3.81.71.6 | 55658246 | 0 |
| 3.81.71.7 | 55658247 | 0 |
| 3.81.71.8 | 55658248 | 0 |
| 3.81.71.9 | 55658249 | 0 |
| 3.81.71.10 | 55658250 | 0 |
| 3.81.71.11 | 55658251 | 0 |
| 3.81.71.12 | 55658252 | 0 |
| 3.81.71.13 | 55658253 | 0 |
| 3.81.71.14 | 55658254 | 0 |
| 3.81.71.15 | 55658255 | 0 |
| 3.81.71.16 | 55658256 | 0 |
| 3.81.71.17 | 55658257 | 0 |
| 3.81.71.18 | 55658258 | 0 |
| 3.81.71.19 | 55658259 | 0 |
| 3.81.71.20 | 55658260 | 0 |
| 3.81.71.21 | 55658261 | 0 |
| 3.81.71.22 | 55658262 | 0 |
| 3.81.71.23 | 55658263 | 0 |
| 3.81.71.24 | 55658264 | 0 |
| 3.81.71.25 | 55658265 | 0 |
| 3.81.71.26 | 55658266 | 0 |
| 3.81.71.27 | 55658267 | 0 |
| 3.81.71.28 | 55658268 | 0 |
| 3.81.71.29 | 55658269 | 0 |
| 3.81.71.30 | 55658270 | 0 |
| 3.81.71.31 | 55658271 | 0 |
| 3.81.71.32 | 55658272 | 0 |
| 3.81.71.33 | 55658273 | 0 |
| 3.81.71.34 | 55658274 | 0 |
| 3.81.71.35 | 55658275 | 0 |
| 3.81.71.36 | 55658276 | 0 |
| 3.81.71.37 | 55658277 | 0 |
| 3.81.71.38 | 55658278 | 0 |
| 3.81.71.39 | 55658279 | 0 |
| 3.81.71.40 | 55658280 | 0 |
| 3.81.71.41 | 55658281 | 0 |
| 3.81.71.42 | 55658282 | 0 |
| 3.81.71.43 | 55658283 | 0 |
| 3.81.71.44 | 55658284 | 0 |
| 3.81.71.45 | 55658285 | 0 |
| 3.81.71.46 | 55658286 | 0 |
| 3.81.71.47 | 55658287 | 0 |
| 3.81.71.48 | 55658288 | 0 |
| 3.81.71.49 | 55658289 | 0 |
| 3.81.71.50 | 55658290 | 0 |
| 3.81.71.51 | 55658291 | 0 |
| 3.81.71.52 | 55658292 | 0 |
| 3.81.71.53 | 55658293 | 0 |
| 3.81.71.54 | 55658294 | 0 |
| 3.81.71.55 | 55658295 | 0 |
| 3.81.71.56 | 55658296 | 0 |
| 3.81.71.57 | 55658297 | 0 |
| 3.81.71.58 | 55658298 | 0 |
| 3.81.71.59 | 55658299 | 0 |
| 3.81.71.60 | 55658300 | 0 |
| 3.81.71.61 | 55658301 | 0 |
| 3.81.71.62 | 55658302 | 0 |
| 3.81.71.63 | 55658303 | 0 |
| 3.81.71.64 | 55658304 | 0 |
| 3.81.71.65 | 55658305 | 0 |
| 3.81.71.66 | 55658306 | 0 |
| 3.81.71.67 | 55658307 | 0 |
| 3.81.71.68 | 55658308 | 0 |
| 3.81.71.69 | 55658309 | 0 |
| 3.81.71.70 | 55658310 | 0 |
| 3.81.71.71 | 55658311 | 0 |
| 3.81.71.72 | 55658312 | 0 |
| 3.81.71.73 | 55658313 | 0 |
| 3.81.71.74 | 55658314 | 0 |
| 3.81.71.75 | 55658315 | 0 |
| 3.81.71.76 | 55658316 | 0 |
| 3.81.71.77 | 55658317 | 0 |
| 3.81.71.78 | 55658318 | 0 |
| 3.81.71.79 | 55658319 | 0 |
| 3.81.71.80 | 55658320 | 0 |
| 3.81.71.81 | 55658321 | 0 |
| 3.81.71.82 | 55658322 | 0 |
| 3.81.71.83 | 55658323 | 0 |
| 3.81.71.84 | 55658324 | 0 |
| 3.81.71.85 | 55658325 | 0 |