The IP address 21.68.23 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 | 04/10/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-10-04 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-10-04 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.68.23.0 | 356783872 | 0 |
| 21.68.23.1 | 356783873 | 0 |
| 21.68.23.2 | 356783874 | 0 |
| 21.68.23.3 | 356783875 | 0 |
| 21.68.23.4 | 356783876 | 0 |
| 21.68.23.5 | 356783877 | 0 |
| 21.68.23.6 | 356783878 | 0 |
| 21.68.23.7 | 356783879 | 0 |
| 21.68.23.8 | 356783880 | 0 |
| 21.68.23.9 | 356783881 | 0 |
| 21.68.23.10 | 356783882 | 0 |
| 21.68.23.11 | 356783883 | 0 |
| 21.68.23.12 | 356783884 | 0 |
| 21.68.23.13 | 356783885 | 0 |
| 21.68.23.14 | 356783886 | 0 |
| 21.68.23.15 | 356783887 | 0 |
| 21.68.23.16 | 356783888 | 0 |
| 21.68.23.17 | 356783889 | 0 |
| 21.68.23.18 | 356783890 | 0 |
| 21.68.23.19 | 356783891 | 0 |
| 21.68.23.20 | 356783892 | 0 |
| 21.68.23.21 | 356783893 | 0 |
| 21.68.23.22 | 356783894 | 0 |
| 21.68.23.23 | 356783895 | 0 |
| 21.68.23.24 | 356783896 | 0 |
| 21.68.23.25 | 356783897 | 0 |
| 21.68.23.26 | 356783898 | 0 |
| 21.68.23.27 | 356783899 | 0 |
| 21.68.23.28 | 356783900 | 0 |
| 21.68.23.29 | 356783901 | 0 |
| 21.68.23.30 | 356783902 | 0 |
| 21.68.23.31 | 356783903 | 0 |
| 21.68.23.32 | 356783904 | 0 |
| 21.68.23.33 | 356783905 | 0 |
| 21.68.23.34 | 356783906 | 0 |
| 21.68.23.35 | 356783907 | 0 |
| 21.68.23.36 | 356783908 | 0 |
| 21.68.23.37 | 356783909 | 0 |
| 21.68.23.38 | 356783910 | 0 |
| 21.68.23.39 | 356783911 | 0 |
| 21.68.23.40 | 356783912 | 0 |
| 21.68.23.41 | 356783913 | 0 |
| 21.68.23.42 | 356783914 | 0 |
| 21.68.23.43 | 356783915 | 0 |
| 21.68.23.44 | 356783916 | 0 |
| 21.68.23.45 | 356783917 | 0 |
| 21.68.23.46 | 356783918 | 0 |
| 21.68.23.47 | 356783919 | 0 |
| 21.68.23.48 | 356783920 | 0 |
| 21.68.23.49 | 356783921 | 0 |
| 21.68.23.50 | 356783922 | 0 |
| 21.68.23.51 | 356783923 | 0 |
| 21.68.23.52 | 356783924 | 0 |
| 21.68.23.53 | 356783925 | 0 |
| 21.68.23.54 | 356783926 | 0 |
| 21.68.23.55 | 356783927 | 0 |
| 21.68.23.56 | 356783928 | 0 |
| 21.68.23.57 | 356783929 | 0 |
| 21.68.23.58 | 356783930 | 0 |
| 21.68.23.59 | 356783931 | 0 |
| 21.68.23.60 | 356783932 | 0 |
| 21.68.23.61 | 356783933 | 0 |
| 21.68.23.62 | 356783934 | 0 |
| 21.68.23.63 | 356783935 | 0 |
| 21.68.23.64 | 356783936 | 0 |
| 21.68.23.65 | 356783937 | 0 |
| 21.68.23.66 | 356783938 | 0 |
| 21.68.23.67 | 356783939 | 0 |
| 21.68.23.68 | 356783940 | 0 |
| 21.68.23.69 | 356783941 | 0 |
| 21.68.23.70 | 356783942 | 0 |
| 21.68.23.71 | 356783943 | 0 |
| 21.68.23.72 | 356783944 | 0 |
| 21.68.23.73 | 356783945 | 0 |
| 21.68.23.74 | 356783946 | 0 |
| 21.68.23.75 | 356783947 | 0 |
| 21.68.23.76 | 356783948 | 0 |
| 21.68.23.77 | 356783949 | 0 |
| 21.68.23.78 | 356783950 | 0 |
| 21.68.23.79 | 356783951 | 0 |
| 21.68.23.80 | 356783952 | 0 |
| 21.68.23.81 | 356783953 | 0 |
| 21.68.23.82 | 356783954 | 0 |
| 21.68.23.83 | 356783955 | 0 |
| 21.68.23.84 | 356783956 | 0 |
| 21.68.23.85 | 356783957 | 0 |