L'indirizzo IP 3.91.99 è fornito da Level 3 Communications, Inc., che è di proprietà del CIDR (Classless Inter-Domain Routing) 4.0.0.0/8, IP tra 4.0.0.0 a 4.255.255.255 ). Il numero di sistema autonomo (ASN) è 3356.
| ASN | 3356 |
| IP inizia con | 4.0.0.0 |
| IP finale con | 4.255.255.255 |
| ASN Nome | Level 3 Communications, Inc. |
| CDIR | 4.0.0.0/8 |
| IP numerico | |
| Registe | arin |
| Ultimo aggiornamento | 03/08/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Fairfield | 41,2184 | -73,2517 | 2017-08-03 |
| MaxMind | US | United States | - | Fairfield | 41,1412 | -73,2637 | 2017-08-03 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 3.91.99.0 | 56320768 | 0 |
| 3.91.99.1 | 56320769 | 0 |
| 3.91.99.2 | 56320770 | 0 |
| 3.91.99.3 | 56320771 | 0 |
| 3.91.99.4 | 56320772 | 0 |
| 3.91.99.5 | 56320773 | 0 |
| 3.91.99.6 | 56320774 | 0 |
| 3.91.99.7 | 56320775 | 0 |
| 3.91.99.8 | 56320776 | 0 |
| 3.91.99.9 | 56320777 | 0 |
| 3.91.99.10 | 56320778 | 0 |
| 3.91.99.11 | 56320779 | 0 |
| 3.91.99.12 | 56320780 | 0 |
| 3.91.99.13 | 56320781 | 0 |
| 3.91.99.14 | 56320782 | 0 |
| 3.91.99.15 | 56320783 | 0 |
| 3.91.99.16 | 56320784 | 0 |
| 3.91.99.17 | 56320785 | 0 |
| 3.91.99.18 | 56320786 | 0 |
| 3.91.99.19 | 56320787 | 0 |
| 3.91.99.20 | 56320788 | 0 |
| 3.91.99.21 | 56320789 | 0 |
| 3.91.99.22 | 56320790 | 0 |
| 3.91.99.23 | 56320791 | 0 |
| 3.91.99.24 | 56320792 | 0 |
| 3.91.99.25 | 56320793 | 0 |
| 3.91.99.26 | 56320794 | 0 |
| 3.91.99.27 | 56320795 | 0 |
| 3.91.99.28 | 56320796 | 0 |
| 3.91.99.29 | 56320797 | 0 |
| 3.91.99.30 | 56320798 | 0 |
| 3.91.99.31 | 56320799 | 0 |
| 3.91.99.32 | 56320800 | 0 |
| 3.91.99.33 | 56320801 | 0 |
| 3.91.99.34 | 56320802 | 0 |
| 3.91.99.35 | 56320803 | 0 |
| 3.91.99.36 | 56320804 | 0 |
| 3.91.99.37 | 56320805 | 0 |
| 3.91.99.38 | 56320806 | 0 |
| 3.91.99.39 | 56320807 | 0 |
| 3.91.99.40 | 56320808 | 0 |
| 3.91.99.41 | 56320809 | 0 |
| 3.91.99.42 | 56320810 | 0 |
| 3.91.99.43 | 56320811 | 0 |
| 3.91.99.44 | 56320812 | 0 |
| 3.91.99.45 | 56320813 | 0 |
| 3.91.99.46 | 56320814 | 0 |
| 3.91.99.47 | 56320815 | 0 |
| 3.91.99.48 | 56320816 | 0 |
| 3.91.99.49 | 56320817 | 0 |
| 3.91.99.50 | 56320818 | 0 |
| 3.91.99.51 | 56320819 | 0 |
| 3.91.99.52 | 56320820 | 0 |
| 3.91.99.53 | 56320821 | 0 |
| 3.91.99.54 | 56320822 | 0 |
| 3.91.99.55 | 56320823 | 0 |
| 3.91.99.56 | 56320824 | 0 |
| 3.91.99.57 | 56320825 | 0 |
| 3.91.99.58 | 56320826 | 0 |
| 3.91.99.59 | 56320827 | 0 |
| 3.91.99.60 | 56320828 | 0 |
| 3.91.99.61 | 56320829 | 0 |
| 3.91.99.62 | 56320830 | 0 |
| 3.91.99.63 | 56320831 | 0 |
| 3.91.99.64 | 56320832 | 0 |
| 3.91.99.65 | 56320833 | 0 |
| 3.91.99.66 | 56320834 | 0 |
| 3.91.99.67 | 56320835 | 0 |
| 3.91.99.68 | 56320836 | 0 |
| 3.91.99.69 | 56320837 | 0 |
| 3.91.99.70 | 56320838 | 0 |
| 3.91.99.71 | 56320839 | 0 |
| 3.91.99.72 | 56320840 | 0 |
| 3.91.99.73 | 56320841 | 0 |
| 3.91.99.74 | 56320842 | 0 |
| 3.91.99.75 | 56320843 | 0 |
| 3.91.99.76 | 56320844 | 0 |
| 3.91.99.77 | 56320845 | 0 |
| 3.91.99.78 | 56320846 | 0 |
| 3.91.99.79 | 56320847 | 0 |
| 3.91.99.80 | 56320848 | 0 |
| 3.91.99.81 | 56320849 | 0 |
| 3.91.99.82 | 56320850 | 0 |
| 3.91.99.83 | 56320851 | 0 |
| 3.91.99.84 | 56320852 | 0 |
| 3.91.99.85 | 56320853 | 0 |