The IP address 166.203.0 is provided by AT&T Mobility LLC, it's belong to the CDIR (Classless Inter-Domain Routing) 166.203.0.0/17 (range 166.203.0.0 to 166.203.127.255). The autonomous system number (ASN) is 20057.
| ASN | 20057 |
| IP starting by | 166.203.0.0 |
| IP ending by | 166.203.127.255 |
| ASN Name | AT&T Mobility LLC |
| CDIR | 166.203.0.0/17 |
| Numerical IP | |
| Registry | arin |
| Last update | 20/02/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Bethlehem | 40.6259 | -75.3705 | 2018-02-20 |
| MaxMind | US | United States | - | New York | 40.7694 | -73.9609 | 2018-02-20 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 166.203.0.0 | 2798321664 | 0 |
| 166.203.0.1 | 2798321665 | 0 |
| 166.203.0.2 | 2798321666 | 0 |
| 166.203.0.3 | 2798321667 | 0 |
| 166.203.0.4 | 2798321668 | 0 |
| 166.203.0.5 | 2798321669 | 0 |
| 166.203.0.6 | 2798321670 | 0 |
| 166.203.0.7 | 2798321671 | 0 |
| 166.203.0.8 | 2798321672 | 0 |
| 166.203.0.9 | 2798321673 | 0 |
| 166.203.0.10 | 2798321674 | 0 |
| 166.203.0.11 | 2798321675 | 0 |
| 166.203.0.12 | 2798321676 | 0 |
| 166.203.0.13 | 2798321677 | 0 |
| 166.203.0.14 | 2798321678 | 0 |
| 166.203.0.15 | 2798321679 | 0 |
| 166.203.0.16 | 2798321680 | 0 |
| 166.203.0.17 | 2798321681 | 0 |
| 166.203.0.18 | 2798321682 | 0 |
| 166.203.0.19 | 2798321683 | 0 |
| 166.203.0.20 | 2798321684 | 0 |
| 166.203.0.21 | 2798321685 | 0 |
| 166.203.0.22 | 2798321686 | 0 |
| 166.203.0.23 | 2798321687 | 0 |
| 166.203.0.24 | 2798321688 | 0 |
| 166.203.0.25 | 2798321689 | 0 |
| 166.203.0.26 | 2798321690 | 0 |
| 166.203.0.27 | 2798321691 | 0 |
| 166.203.0.28 | 2798321692 | 0 |
| 166.203.0.29 | 2798321693 | 0 |
| 166.203.0.30 | 2798321694 | 0 |
| 166.203.0.31 | 2798321695 | 0 |
| 166.203.0.32 | 2798321696 | 0 |
| 166.203.0.33 | 2798321697 | 0 |
| 166.203.0.34 | 2798321698 | 0 |
| 166.203.0.35 | 2798321699 | 0 |
| 166.203.0.36 | 2798321700 | 0 |
| 166.203.0.37 | 2798321701 | 0 |
| 166.203.0.38 | 2798321702 | 0 |
| 166.203.0.39 | 2798321703 | 0 |
| 166.203.0.40 | 2798321704 | 0 |
| 166.203.0.41 | 2798321705 | 0 |
| 166.203.0.42 | 2798321706 | 0 |
| 166.203.0.43 | 2798321707 | 0 |
| 166.203.0.44 | 2798321708 | 0 |
| 166.203.0.45 | 2798321709 | 0 |
| 166.203.0.46 | 2798321710 | 0 |
| 166.203.0.47 | 2798321711 | 0 |
| 166.203.0.48 | 2798321712 | 0 |
| 166.203.0.49 | 2798321713 | 0 |
| 166.203.0.50 | 2798321714 | 0 |
| 166.203.0.51 | 2798321715 | 0 |
| 166.203.0.52 | 2798321716 | 0 |
| 166.203.0.53 | 2798321717 | 0 |
| 166.203.0.54 | 2798321718 | 0 |
| 166.203.0.55 | 2798321719 | 0 |
| 166.203.0.56 | 2798321720 | 0 |
| 166.203.0.57 | 2798321721 | 0 |
| 166.203.0.58 | 2798321722 | 0 |
| 166.203.0.59 | 2798321723 | 0 |
| 166.203.0.60 | 2798321724 | 0 |
| 166.203.0.61 | 2798321725 | 0 |
| 166.203.0.62 | 2798321726 | 0 |
| 166.203.0.63 | 2798321727 | 0 |
| 166.203.0.64 | 2798321728 | 0 |
| 166.203.0.65 | 2798321729 | 0 |
| 166.203.0.66 | 2798321730 | 0 |
| 166.203.0.67 | 2798321731 | 0 |
| 166.203.0.68 | 2798321732 | 0 |
| 166.203.0.69 | 2798321733 | 0 |
| 166.203.0.70 | 2798321734 | 0 |
| 166.203.0.71 | 2798321735 | 0 |
| 166.203.0.72 | 2798321736 | 0 |
| 166.203.0.73 | 2798321737 | 0 |
| 166.203.0.74 | 2798321738 | 0 |
| 166.203.0.75 | 2798321739 | 0 |
| 166.203.0.76 | 2798321740 | 0 |
| 166.203.0.77 | 2798321741 | 0 |
| 166.203.0.78 | 2798321742 | 0 |
| 166.203.0.79 | 2798321743 | 0 |
| 166.203.0.80 | 2798321744 | 0 |
| 166.203.0.81 | 2798321745 | 0 |
| 166.203.0.82 | 2798321746 | 0 |
| 166.203.0.83 | 2798321747 | 0 |
| 166.203.0.84 | 2798321748 | 0 |
| 166.203.0.85 | 2798321749 | 0 |