Les adresses IP débutant par 21.93.72 sont fournies par China Education and Research Network Center, elles appartiennent au CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, le bloc IP comprant les adresses de 22.30.204.0 à 22.30.205.255). Le numéro de système autonome (ASN) est 4538.
| ASN | 4538 |
| IP commençant par | 22.30.204.0 |
| IP se terminant par | 22.30.205.255 |
| Nom ASN | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérique | |
| Registe | |
| Dernière mise à jour | 11/02/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Columbus | 39,9664 | -83,0128 | 2018-02-10 |
| MaxMind | US | États-Unis | - | - | 37,751 | -97,822 | 2018-02-10 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.93.72.0 | 358434816 | 0 |
| 21.93.72.1 | 358434817 | 0 |
| 21.93.72.2 | 358434818 | 0 |
| 21.93.72.3 | 358434819 | 0 |
| 21.93.72.4 | 358434820 | 0 |
| 21.93.72.5 | 358434821 | 0 |
| 21.93.72.6 | 358434822 | 0 |
| 21.93.72.7 | 358434823 | 0 |
| 21.93.72.8 | 358434824 | 0 |
| 21.93.72.9 | 358434825 | 0 |
| 21.93.72.10 | 358434826 | 0 |
| 21.93.72.11 | 358434827 | 0 |
| 21.93.72.12 | 358434828 | 0 |
| 21.93.72.13 | 358434829 | 0 |
| 21.93.72.14 | 358434830 | 0 |
| 21.93.72.15 | 358434831 | 0 |
| 21.93.72.16 | 358434832 | 0 |
| 21.93.72.17 | 358434833 | 0 |
| 21.93.72.18 | 358434834 | 0 |
| 21.93.72.19 | 358434835 | 0 |
| 21.93.72.20 | 358434836 | 0 |
| 21.93.72.21 | 358434837 | 0 |
| 21.93.72.22 | 358434838 | 0 |
| 21.93.72.23 | 358434839 | 0 |
| 21.93.72.24 | 358434840 | 0 |
| 21.93.72.25 | 358434841 | 0 |
| 21.93.72.26 | 358434842 | 0 |
| 21.93.72.27 | 358434843 | 0 |
| 21.93.72.28 | 358434844 | 0 |
| 21.93.72.29 | 358434845 | 0 |
| 21.93.72.30 | 358434846 | 0 |
| 21.93.72.31 | 358434847 | 0 |
| 21.93.72.32 | 358434848 | 0 |
| 21.93.72.33 | 358434849 | 0 |
| 21.93.72.34 | 358434850 | 0 |
| 21.93.72.35 | 358434851 | 0 |
| 21.93.72.36 | 358434852 | 0 |
| 21.93.72.37 | 358434853 | 0 |
| 21.93.72.38 | 358434854 | 0 |
| 21.93.72.39 | 358434855 | 0 |
| 21.93.72.40 | 358434856 | 0 |
| 21.93.72.41 | 358434857 | 0 |
| 21.93.72.42 | 358434858 | 0 |
| 21.93.72.43 | 358434859 | 0 |
| 21.93.72.44 | 358434860 | 0 |
| 21.93.72.45 | 358434861 | 0 |
| 21.93.72.46 | 358434862 | 0 |
| 21.93.72.47 | 358434863 | 0 |
| 21.93.72.48 | 358434864 | 0 |
| 21.93.72.49 | 358434865 | 0 |
| 21.93.72.50 | 358434866 | 0 |
| 21.93.72.51 | 358434867 | 0 |
| 21.93.72.52 | 358434868 | 0 |
| 21.93.72.53 | 358434869 | 0 |
| 21.93.72.54 | 358434870 | 0 |
| 21.93.72.55 | 358434871 | 0 |
| 21.93.72.56 | 358434872 | 0 |
| 21.93.72.57 | 358434873 | 0 |
| 21.93.72.58 | 358434874 | 0 |
| 21.93.72.59 | 358434875 | 0 |
| 21.93.72.60 | 358434876 | 0 |
| 21.93.72.61 | 358434877 | 0 |
| 21.93.72.62 | 358434878 | 0 |
| 21.93.72.63 | 358434879 | 0 |
| 21.93.72.64 | 358434880 | 0 |
| 21.93.72.65 | 358434881 | 0 |
| 21.93.72.66 | 358434882 | 0 |
| 21.93.72.67 | 358434883 | 0 |
| 21.93.72.68 | 358434884 | 0 |
| 21.93.72.69 | 358434885 | 0 |
| 21.93.72.70 | 358434886 | 0 |
| 21.93.72.71 | 358434887 | 0 |
| 21.93.72.72 | 358434888 | 0 |
| 21.93.72.73 | 358434889 | 0 |
| 21.93.72.74 | 358434890 | 0 |
| 21.93.72.75 | 358434891 | 0 |
| 21.93.72.76 | 358434892 | 0 |
| 21.93.72.77 | 358434893 | 0 |
| 21.93.72.78 | 358434894 | 0 |
| 21.93.72.79 | 358434895 | 0 |
| 21.93.72.80 | 358434896 | 0 |
| 21.93.72.81 | 358434897 | 0 |
| 21.93.72.82 | 358434898 | 0 |
| 21.93.72.83 | 358434899 | 0 |
| 21.93.72.84 | 358434900 | 0 |
| 21.93.72.85 | 358434901 | 0 |