The IP address 21.97.75 is provided by China Education and Research Network Center, it's belong to the CDIR (Classless Inter-Domain Routing) 22.30.204.0/23 (range 22.30.204.0 to 22.30.205.255). The autonomous system number (ASN) is 4538.
| ASN | 4538 |
| IP starting by | 22.30.204.0 |
| IP ending by | 22.30.205.255 |
| ASN Name | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| Numerical IP | |
| Registry | |
| Last update | 26/09/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-09-25 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-09-25 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.97.75.0 | 358697728 | 0 |
| 21.97.75.1 | 358697729 | 0 |
| 21.97.75.2 | 358697730 | 0 |
| 21.97.75.3 | 358697731 | 0 |
| 21.97.75.4 | 358697732 | 0 |
| 21.97.75.5 | 358697733 | 0 |
| 21.97.75.6 | 358697734 | 0 |
| 21.97.75.7 | 358697735 | 0 |
| 21.97.75.8 | 358697736 | 0 |
| 21.97.75.9 | 358697737 | 0 |
| 21.97.75.10 | 358697738 | 0 |
| 21.97.75.11 | 358697739 | 0 |
| 21.97.75.12 | 358697740 | 0 |
| 21.97.75.13 | 358697741 | 0 |
| 21.97.75.14 | 358697742 | 0 |
| 21.97.75.15 | 358697743 | 0 |
| 21.97.75.16 | 358697744 | 0 |
| 21.97.75.17 | 358697745 | 0 |
| 21.97.75.18 | 358697746 | 0 |
| 21.97.75.19 | 358697747 | 0 |
| 21.97.75.20 | 358697748 | 0 |
| 21.97.75.21 | 358697749 | 0 |
| 21.97.75.22 | 358697750 | 0 |
| 21.97.75.23 | 358697751 | 0 |
| 21.97.75.24 | 358697752 | 0 |
| 21.97.75.25 | 358697753 | 0 |
| 21.97.75.26 | 358697754 | 0 |
| 21.97.75.27 | 358697755 | 0 |
| 21.97.75.28 | 358697756 | 0 |
| 21.97.75.29 | 358697757 | 0 |
| 21.97.75.30 | 358697758 | 0 |
| 21.97.75.31 | 358697759 | 0 |
| 21.97.75.32 | 358697760 | 0 |
| 21.97.75.33 | 358697761 | 0 |
| 21.97.75.34 | 358697762 | 0 |
| 21.97.75.35 | 358697763 | 0 |
| 21.97.75.36 | 358697764 | 0 |
| 21.97.75.37 | 358697765 | 0 |
| 21.97.75.38 | 358697766 | 0 |
| 21.97.75.39 | 358697767 | 0 |
| 21.97.75.40 | 358697768 | 0 |
| 21.97.75.41 | 358697769 | 0 |
| 21.97.75.42 | 358697770 | 0 |
| 21.97.75.43 | 358697771 | 0 |
| 21.97.75.44 | 358697772 | 0 |
| 21.97.75.45 | 358697773 | 0 |
| 21.97.75.46 | 358697774 | 0 |
| 21.97.75.47 | 358697775 | 0 |
| 21.97.75.48 | 358697776 | 0 |
| 21.97.75.49 | 358697777 | 0 |
| 21.97.75.50 | 358697778 | 0 |
| 21.97.75.51 | 358697779 | 0 |
| 21.97.75.52 | 358697780 | 0 |
| 21.97.75.53 | 358697781 | 0 |
| 21.97.75.54 | 358697782 | 0 |
| 21.97.75.55 | 358697783 | 0 |
| 21.97.75.56 | 358697784 | 0 |
| 21.97.75.57 | 358697785 | 0 |
| 21.97.75.58 | 358697786 | 0 |
| 21.97.75.59 | 358697787 | 0 |
| 21.97.75.60 | 358697788 | 0 |
| 21.97.75.61 | 358697789 | 0 |
| 21.97.75.62 | 358697790 | 0 |
| 21.97.75.63 | 358697791 | 0 |
| 21.97.75.64 | 358697792 | 0 |
| 21.97.75.65 | 358697793 | 0 |
| 21.97.75.66 | 358697794 | 0 |
| 21.97.75.67 | 358697795 | 0 |
| 21.97.75.68 | 358697796 | 0 |
| 21.97.75.69 | 358697797 | 0 |
| 21.97.75.70 | 358697798 | 0 |
| 21.97.75.71 | 358697799 | 0 |
| 21.97.75.72 | 358697800 | 0 |
| 21.97.75.73 | 358697801 | 0 |
| 21.97.75.74 | 358697802 | 0 |
| 21.97.75.75 | 358697803 | 0 |
| 21.97.75.76 | 358697804 | 0 |
| 21.97.75.77 | 358697805 | 0 |
| 21.97.75.78 | 358697806 | 0 |
| 21.97.75.79 | 358697807 | 0 |
| 21.97.75.80 | 358697808 | 0 |
| 21.97.75.81 | 358697809 | 0 |
| 21.97.75.82 | 358697810 | 0 |
| 21.97.75.83 | 358697811 | 0 |
| 21.97.75.84 | 358697812 | 0 |
| 21.97.75.85 | 358697813 | 0 |