The IP address 21.9.166 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 | 08/06/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2018-06-08 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2018-06-08 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.9.166.0 | 352953856 | 0 |
| 21.9.166.1 | 352953857 | 0 |
| 21.9.166.2 | 352953858 | 0 |
| 21.9.166.3 | 352953859 | 0 |
| 21.9.166.4 | 352953860 | 0 |
| 21.9.166.5 | 352953861 | 0 |
| 21.9.166.6 | 352953862 | 0 |
| 21.9.166.7 | 352953863 | 0 |
| 21.9.166.8 | 352953864 | 0 |
| 21.9.166.9 | 352953865 | 0 |
| 21.9.166.10 | 352953866 | 0 |
| 21.9.166.11 | 352953867 | 0 |
| 21.9.166.12 | 352953868 | 0 |
| 21.9.166.13 | 352953869 | 0 |
| 21.9.166.14 | 352953870 | 0 |
| 21.9.166.15 | 352953871 | 0 |
| 21.9.166.16 | 352953872 | 0 |
| 21.9.166.17 | 352953873 | 0 |
| 21.9.166.18 | 352953874 | 0 |
| 21.9.166.19 | 352953875 | 0 |
| 21.9.166.20 | 352953876 | 0 |
| 21.9.166.21 | 352953877 | 0 |
| 21.9.166.22 | 352953878 | 0 |
| 21.9.166.23 | 352953879 | 0 |
| 21.9.166.24 | 352953880 | 0 |
| 21.9.166.25 | 352953881 | 0 |
| 21.9.166.26 | 352953882 | 0 |
| 21.9.166.27 | 352953883 | 0 |
| 21.9.166.28 | 352953884 | 0 |
| 21.9.166.29 | 352953885 | 0 |
| 21.9.166.30 | 352953886 | 0 |
| 21.9.166.31 | 352953887 | 0 |
| 21.9.166.32 | 352953888 | 0 |
| 21.9.166.33 | 352953889 | 0 |
| 21.9.166.34 | 352953890 | 0 |
| 21.9.166.35 | 352953891 | 0 |
| 21.9.166.36 | 352953892 | 0 |
| 21.9.166.37 | 352953893 | 0 |
| 21.9.166.38 | 352953894 | 0 |
| 21.9.166.39 | 352953895 | 0 |
| 21.9.166.40 | 352953896 | 0 |
| 21.9.166.41 | 352953897 | 0 |
| 21.9.166.42 | 352953898 | 0 |
| 21.9.166.43 | 352953899 | 0 |
| 21.9.166.44 | 352953900 | 0 |
| 21.9.166.45 | 352953901 | 0 |
| 21.9.166.46 | 352953902 | 0 |
| 21.9.166.47 | 352953903 | 0 |
| 21.9.166.48 | 352953904 | 0 |
| 21.9.166.49 | 352953905 | 0 |
| 21.9.166.50 | 352953906 | 0 |
| 21.9.166.51 | 352953907 | 0 |
| 21.9.166.52 | 352953908 | 0 |
| 21.9.166.53 | 352953909 | 0 |
| 21.9.166.54 | 352953910 | 0 |
| 21.9.166.55 | 352953911 | 0 |
| 21.9.166.56 | 352953912 | 0 |
| 21.9.166.57 | 352953913 | 0 |
| 21.9.166.58 | 352953914 | 0 |
| 21.9.166.59 | 352953915 | 0 |
| 21.9.166.60 | 352953916 | 0 |
| 21.9.166.61 | 352953917 | 0 |
| 21.9.166.62 | 352953918 | 0 |
| 21.9.166.63 | 352953919 | 0 |
| 21.9.166.64 | 352953920 | 0 |
| 21.9.166.65 | 352953921 | 0 |
| 21.9.166.66 | 352953922 | 0 |
| 21.9.166.67 | 352953923 | 0 |
| 21.9.166.68 | 352953924 | 0 |
| 21.9.166.69 | 352953925 | 0 |
| 21.9.166.70 | 352953926 | 0 |
| 21.9.166.71 | 352953927 | 0 |
| 21.9.166.72 | 352953928 | 0 |
| 21.9.166.73 | 352953929 | 0 |
| 21.9.166.74 | 352953930 | 0 |
| 21.9.166.75 | 352953931 | 0 |
| 21.9.166.76 | 352953932 | 0 |
| 21.9.166.77 | 352953933 | 0 |
| 21.9.166.78 | 352953934 | 0 |
| 21.9.166.79 | 352953935 | 0 |
| 21.9.166.80 | 352953936 | 0 |
| 21.9.166.81 | 352953937 | 0 |
| 21.9.166.82 | 352953938 | 0 |
| 21.9.166.83 | 352953939 | 0 |
| 21.9.166.84 | 352953940 | 0 |
| 21.9.166.85 | 352953941 | 0 |