Les adresses IP débutant par 3.99.71 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 | 18/09/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Fairfield | 41,2184 | -73,2517 | 2017-09-18 |
| MaxMind | US | États-Unis | - | Fairfield | 41,1412 | -73,2637 | 2017-09-18 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 3.99.71.0 | 56837888 | 0 |
| 3.99.71.1 | 56837889 | 0 |
| 3.99.71.2 | 56837890 | 0 |
| 3.99.71.3 | 56837891 | 0 |
| 3.99.71.4 | 56837892 | 0 |
| 3.99.71.5 | 56837893 | 0 |
| 3.99.71.6 | 56837894 | 0 |
| 3.99.71.7 | 56837895 | 0 |
| 3.99.71.8 | 56837896 | 0 |
| 3.99.71.9 | 56837897 | 0 |
| 3.99.71.10 | 56837898 | 0 |
| 3.99.71.11 | 56837899 | 0 |
| 3.99.71.12 | 56837900 | 0 |
| 3.99.71.13 | 56837901 | 0 |
| 3.99.71.14 | 56837902 | 0 |
| 3.99.71.15 | 56837903 | 0 |
| 3.99.71.16 | 56837904 | 0 |
| 3.99.71.17 | 56837905 | 0 |
| 3.99.71.18 | 56837906 | 0 |
| 3.99.71.19 | 56837907 | 0 |
| 3.99.71.20 | 56837908 | 0 |
| 3.99.71.21 | 56837909 | 0 |
| 3.99.71.22 | 56837910 | 0 |
| 3.99.71.23 | 56837911 | 0 |
| 3.99.71.24 | 56837912 | 0 |
| 3.99.71.25 | 56837913 | 0 |
| 3.99.71.26 | 56837914 | 0 |
| 3.99.71.27 | 56837915 | 0 |
| 3.99.71.28 | 56837916 | 0 |
| 3.99.71.29 | 56837917 | 0 |
| 3.99.71.30 | 56837918 | 0 |
| 3.99.71.31 | 56837919 | 0 |
| 3.99.71.32 | 56837920 | 0 |
| 3.99.71.33 | 56837921 | 0 |
| 3.99.71.34 | 56837922 | 0 |
| 3.99.71.35 | 56837923 | 0 |
| 3.99.71.36 | 56837924 | 0 |
| 3.99.71.37 | 56837925 | 0 |
| 3.99.71.38 | 56837926 | 0 |
| 3.99.71.39 | 56837927 | 0 |
| 3.99.71.40 | 56837928 | 0 |
| 3.99.71.41 | 56837929 | 0 |
| 3.99.71.42 | 56837930 | 0 |
| 3.99.71.43 | 56837931 | 0 |
| 3.99.71.44 | 56837932 | 0 |
| 3.99.71.45 | 56837933 | 0 |
| 3.99.71.46 | 56837934 | 0 |
| 3.99.71.47 | 56837935 | 0 |
| 3.99.71.48 | 56837936 | 0 |
| 3.99.71.49 | 56837937 | 0 |
| 3.99.71.50 | 56837938 | 0 |
| 3.99.71.51 | 56837939 | 0 |
| 3.99.71.52 | 56837940 | 0 |
| 3.99.71.53 | 56837941 | 0 |
| 3.99.71.54 | 56837942 | 0 |
| 3.99.71.55 | 56837943 | 0 |
| 3.99.71.56 | 56837944 | 0 |
| 3.99.71.57 | 56837945 | 0 |
| 3.99.71.58 | 56837946 | 0 |
| 3.99.71.59 | 56837947 | 0 |
| 3.99.71.60 | 56837948 | 0 |
| 3.99.71.61 | 56837949 | 0 |
| 3.99.71.62 | 56837950 | 0 |
| 3.99.71.63 | 56837951 | 0 |
| 3.99.71.64 | 56837952 | 0 |
| 3.99.71.65 | 56837953 | 0 |
| 3.99.71.66 | 56837954 | 0 |
| 3.99.71.67 | 56837955 | 0 |
| 3.99.71.68 | 56837956 | 0 |
| 3.99.71.69 | 56837957 | 0 |
| 3.99.71.70 | 56837958 | 0 |
| 3.99.71.71 | 56837959 | 0 |
| 3.99.71.72 | 56837960 | 0 |
| 3.99.71.73 | 56837961 | 0 |
| 3.99.71.74 | 56837962 | 0 |
| 3.99.71.75 | 56837963 | 0 |
| 3.99.71.76 | 56837964 | 0 |
| 3.99.71.77 | 56837965 | 0 |
| 3.99.71.78 | 56837966 | 0 |
| 3.99.71.79 | 56837967 | 0 |
| 3.99.71.80 | 56837968 | 0 |
| 3.99.71.81 | 56837969 | 0 |
| 3.99.71.82 | 56837970 | 0 |
| 3.99.71.83 | 56837971 | 0 |
| 3.99.71.84 | 56837972 | 0 |
| 3.99.71.85 | 56837973 | 0 |