The IP address 172.31.66 is provided by T-Mobile USA, Inc., it's belong to the CDIR (Classless Inter-Domain Routing) 172.32.0.0/11 (range 172.32.0.0 to 172.63.255.255). The autonomous system number (ASN) is 21928.
| ASN | 21928 |
| IP starting by | 172.32.0.0 |
| IP ending by | 172.63.255.255 |
| ASN Name | T-Mobile USA, Inc. |
| CDIR | 172.32.0.0/11 |
| Numerical IP | |
| Registry | arin |
| Last update | 28/07/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | - | - | - | - | 0 | 0 | 2017-07-28 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-07-28 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 172.31.66.0 | 2887729664 | 0 |
| 172.31.66.1 | 2887729665 | 0 |
| 172.31.66.2 | 2887729666 | 0 |
| 172.31.66.3 | 2887729667 | 0 |
| 172.31.66.4 | 2887729668 | 0 |
| 172.31.66.5 | 2887729669 | 0 |
| 172.31.66.6 | 2887729670 | 0 |
| 172.31.66.7 | 2887729671 | 0 |
| 172.31.66.8 | 2887729672 | 0 |
| 172.31.66.9 | 2887729673 | 0 |
| 172.31.66.10 | 2887729674 | 0 |
| 172.31.66.11 | 2887729675 | 0 |
| 172.31.66.12 | 2887729676 | 0 |
| 172.31.66.13 | 2887729677 | 0 |
| 172.31.66.14 | 2887729678 | 0 |
| 172.31.66.15 | 2887729679 | 0 |
| 172.31.66.16 | 2887729680 | 0 |
| 172.31.66.17 | 2887729681 | 0 |
| 172.31.66.18 | 2887729682 | 0 |
| 172.31.66.19 | 2887729683 | 0 |
| 172.31.66.20 | 2887729684 | 0 |
| 172.31.66.21 | 2887729685 | 0 |
| 172.31.66.22 | 2887729686 | 0 |
| 172.31.66.23 | 2887729687 | 0 |
| 172.31.66.24 | 2887729688 | 0 |
| 172.31.66.25 | 2887729689 | 0 |
| 172.31.66.26 | 2887729690 | 0 |
| 172.31.66.27 | 2887729691 | 0 |
| 172.31.66.28 | 2887729692 | 0 |
| 172.31.66.29 | 2887729693 | 0 |
| 172.31.66.30 | 2887729694 | 0 |
| 172.31.66.31 | 2887729695 | 0 |
| 172.31.66.32 | 2887729696 | 0 |
| 172.31.66.33 | 2887729697 | 0 |
| 172.31.66.34 | 2887729698 | 0 |
| 172.31.66.35 | 2887729699 | 0 |
| 172.31.66.36 | 2887729700 | 0 |
| 172.31.66.37 | 2887729701 | 0 |
| 172.31.66.38 | 2887729702 | 0 |
| 172.31.66.39 | 2887729703 | 0 |
| 172.31.66.40 | 2887729704 | 0 |
| 172.31.66.41 | 2887729705 | 0 |
| 172.31.66.42 | 2887729706 | 0 |
| 172.31.66.43 | 2887729707 | 0 |
| 172.31.66.44 | 2887729708 | 0 |
| 172.31.66.45 | 2887729709 | 0 |
| 172.31.66.46 | 2887729710 | 0 |
| 172.31.66.47 | 2887729711 | 0 |
| 172.31.66.48 | 2887729712 | 0 |
| 172.31.66.49 | 2887729713 | 0 |
| 172.31.66.50 | 2887729714 | 0 |
| 172.31.66.51 | 2887729715 | 0 |
| 172.31.66.52 | 2887729716 | 0 |
| 172.31.66.53 | 2887729717 | 0 |
| 172.31.66.54 | 2887729718 | 0 |
| 172.31.66.55 | 2887729719 | 0 |
| 172.31.66.56 | 2887729720 | 0 |
| 172.31.66.57 | 2887729721 | 0 |
| 172.31.66.58 | 2887729722 | 0 |
| 172.31.66.59 | 2887729723 | 0 |
| 172.31.66.60 | 2887729724 | 0 |
| 172.31.66.61 | 2887729725 | 0 |
| 172.31.66.62 | 2887729726 | 0 |
| 172.31.66.63 | 2887729727 | 0 |
| 172.31.66.64 | 2887729728 | 0 |
| 172.31.66.65 | 2887729729 | 0 |
| 172.31.66.66 | 2887729730 | 0 |
| 172.31.66.67 | 2887729731 | 0 |
| 172.31.66.68 | 2887729732 | 0 |
| 172.31.66.69 | 2887729733 | 0 |
| 172.31.66.70 | 2887729734 | 0 |
| 172.31.66.71 | 2887729735 | 0 |
| 172.31.66.72 | 2887729736 | 0 |
| 172.31.66.73 | 2887729737 | 0 |
| 172.31.66.74 | 2887729738 | 0 |
| 172.31.66.75 | 2887729739 | 0 |
| 172.31.66.76 | 2887729740 | 0 |
| 172.31.66.77 | 2887729741 | 0 |
| 172.31.66.78 | 2887729742 | 0 |
| 172.31.66.79 | 2887729743 | 0 |
| 172.31.66.80 | 2887729744 | 0 |
| 172.31.66.81 | 2887729745 | 0 |
| 172.31.66.82 | 2887729746 | 0 |
| 172.31.66.83 | 2887729747 | 0 |
| 172.31.66.84 | 2887729748 | 0 |
| 172.31.66.85 | 2887729749 | 0 |