La dirección IP 21.7.166 es proporcionada por China Education and Research Network Center, que es propiedad de la CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP entre 22.30.204.0 a 22.30.205.255 ). El número de sistema autónomo (ASN) es 4538.
| ASN | 4538 |
| IP que comienzan con | 22.30.204.0 |
| IP que termina con | 22.30.205.255 |
| ASN Nombre | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérica | |
| Registe | |
| Última actualización | 20/10/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2017-10-20 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2017-10-20 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.7.166.0 | 352822784 | 0 |
| 21.7.166.1 | 352822785 | 0 |
| 21.7.166.2 | 352822786 | 0 |
| 21.7.166.3 | 352822787 | 0 |
| 21.7.166.4 | 352822788 | 0 |
| 21.7.166.5 | 352822789 | 0 |
| 21.7.166.6 | 352822790 | 0 |
| 21.7.166.7 | 352822791 | 0 |
| 21.7.166.8 | 352822792 | 0 |
| 21.7.166.9 | 352822793 | 0 |
| 21.7.166.10 | 352822794 | 0 |
| 21.7.166.11 | 352822795 | 0 |
| 21.7.166.12 | 352822796 | 0 |
| 21.7.166.13 | 352822797 | 0 |
| 21.7.166.14 | 352822798 | 0 |
| 21.7.166.15 | 352822799 | 0 |
| 21.7.166.16 | 352822800 | 0 |
| 21.7.166.17 | 352822801 | 0 |
| 21.7.166.18 | 352822802 | 0 |
| 21.7.166.19 | 352822803 | 0 |
| 21.7.166.20 | 352822804 | 0 |
| 21.7.166.21 | 352822805 | 0 |
| 21.7.166.22 | 352822806 | 0 |
| 21.7.166.23 | 352822807 | 0 |
| 21.7.166.24 | 352822808 | 0 |
| 21.7.166.25 | 352822809 | 0 |
| 21.7.166.26 | 352822810 | 0 |
| 21.7.166.27 | 352822811 | 0 |
| 21.7.166.28 | 352822812 | 0 |
| 21.7.166.29 | 352822813 | 0 |
| 21.7.166.30 | 352822814 | 0 |
| 21.7.166.31 | 352822815 | 0 |
| 21.7.166.32 | 352822816 | 0 |
| 21.7.166.33 | 352822817 | 0 |
| 21.7.166.34 | 352822818 | 0 |
| 21.7.166.35 | 352822819 | 0 |
| 21.7.166.36 | 352822820 | 0 |
| 21.7.166.37 | 352822821 | 0 |
| 21.7.166.38 | 352822822 | 0 |
| 21.7.166.39 | 352822823 | 0 |
| 21.7.166.40 | 352822824 | 0 |
| 21.7.166.41 | 352822825 | 0 |
| 21.7.166.42 | 352822826 | 0 |
| 21.7.166.43 | 352822827 | 0 |
| 21.7.166.44 | 352822828 | 0 |
| 21.7.166.45 | 352822829 | 0 |
| 21.7.166.46 | 352822830 | 0 |
| 21.7.166.47 | 352822831 | 0 |
| 21.7.166.48 | 352822832 | 0 |
| 21.7.166.49 | 352822833 | 0 |
| 21.7.166.50 | 352822834 | 0 |
| 21.7.166.51 | 352822835 | 0 |
| 21.7.166.52 | 352822836 | 0 |
| 21.7.166.53 | 352822837 | 0 |
| 21.7.166.54 | 352822838 | 0 |
| 21.7.166.55 | 352822839 | 0 |
| 21.7.166.56 | 352822840 | 0 |
| 21.7.166.57 | 352822841 | 0 |
| 21.7.166.58 | 352822842 | 0 |
| 21.7.166.59 | 352822843 | 0 |
| 21.7.166.60 | 352822844 | 0 |
| 21.7.166.61 | 352822845 | 0 |
| 21.7.166.62 | 352822846 | 0 |
| 21.7.166.63 | 352822847 | 0 |
| 21.7.166.64 | 352822848 | 0 |
| 21.7.166.65 | 352822849 | 0 |
| 21.7.166.66 | 352822850 | 0 |
| 21.7.166.67 | 352822851 | 0 |
| 21.7.166.68 | 352822852 | 0 |
| 21.7.166.69 | 352822853 | 0 |
| 21.7.166.70 | 352822854 | 0 |
| 21.7.166.71 | 352822855 | 0 |
| 21.7.166.72 | 352822856 | 0 |
| 21.7.166.73 | 352822857 | 0 |
| 21.7.166.74 | 352822858 | 0 |
| 21.7.166.75 | 352822859 | 0 |
| 21.7.166.76 | 352822860 | 0 |
| 21.7.166.77 | 352822861 | 0 |
| 21.7.166.78 | 352822862 | 0 |
| 21.7.166.79 | 352822863 | 0 |
| 21.7.166.80 | 352822864 | 0 |
| 21.7.166.81 | 352822865 | 0 |
| 21.7.166.82 | 352822866 | 0 |
| 21.7.166.83 | 352822867 | 0 |
| 21.7.166.84 | 352822868 | 0 |
| 21.7.166.85 | 352822869 | 0 |