L'indirizzo IP 21.216.2 è fornito da China Education and Research Network Center, che è di proprietà del CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP tra 22.30.204.0 a 22.30.205.255 ). Il numero di sistema autonomo (ASN) è 4538.
| ASN | 4538 |
| IP inizia con | 22.30.204.0 |
| IP finale con | 22.30.205.255 |
| ASN Nome | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numerico | |
| Registe | |
| Ultimo aggiornamento | 31/10/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2017-10-30 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-10-30 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.216.2.0 | 366477824 | 0 |
| 21.216.2.1 | 366477825 | 0 |
| 21.216.2.2 | 366477826 | 0 |
| 21.216.2.3 | 366477827 | 0 |
| 21.216.2.4 | 366477828 | 0 |
| 21.216.2.5 | 366477829 | 0 |
| 21.216.2.6 | 366477830 | 0 |
| 21.216.2.7 | 366477831 | 0 |
| 21.216.2.8 | 366477832 | 0 |
| 21.216.2.9 | 366477833 | 0 |
| 21.216.2.10 | 366477834 | 0 |
| 21.216.2.11 | 366477835 | 0 |
| 21.216.2.12 | 366477836 | 0 |
| 21.216.2.13 | 366477837 | 0 |
| 21.216.2.14 | 366477838 | 0 |
| 21.216.2.15 | 366477839 | 0 |
| 21.216.2.16 | 366477840 | 0 |
| 21.216.2.17 | 366477841 | 0 |
| 21.216.2.18 | 366477842 | 0 |
| 21.216.2.19 | 366477843 | 0 |
| 21.216.2.20 | 366477844 | 0 |
| 21.216.2.21 | 366477845 | 0 |
| 21.216.2.22 | 366477846 | 0 |
| 21.216.2.23 | 366477847 | 0 |
| 21.216.2.24 | 366477848 | 0 |
| 21.216.2.25 | 366477849 | 0 |
| 21.216.2.26 | 366477850 | 0 |
| 21.216.2.27 | 366477851 | 0 |
| 21.216.2.28 | 366477852 | 0 |
| 21.216.2.29 | 366477853 | 0 |
| 21.216.2.30 | 366477854 | 0 |
| 21.216.2.31 | 366477855 | 0 |
| 21.216.2.32 | 366477856 | 0 |
| 21.216.2.33 | 366477857 | 0 |
| 21.216.2.34 | 366477858 | 0 |
| 21.216.2.35 | 366477859 | 0 |
| 21.216.2.36 | 366477860 | 0 |
| 21.216.2.37 | 366477861 | 0 |
| 21.216.2.38 | 366477862 | 0 |
| 21.216.2.39 | 366477863 | 0 |
| 21.216.2.40 | 366477864 | 0 |
| 21.216.2.41 | 366477865 | 0 |
| 21.216.2.42 | 366477866 | 0 |
| 21.216.2.43 | 366477867 | 0 |
| 21.216.2.44 | 366477868 | 0 |
| 21.216.2.45 | 366477869 | 0 |
| 21.216.2.46 | 366477870 | 0 |
| 21.216.2.47 | 366477871 | 0 |
| 21.216.2.48 | 366477872 | 0 |
| 21.216.2.49 | 366477873 | 0 |
| 21.216.2.50 | 366477874 | 0 |
| 21.216.2.51 | 366477875 | 0 |
| 21.216.2.52 | 366477876 | 0 |
| 21.216.2.53 | 366477877 | 0 |
| 21.216.2.54 | 366477878 | 0 |
| 21.216.2.55 | 366477879 | 0 |
| 21.216.2.56 | 366477880 | 0 |
| 21.216.2.57 | 366477881 | 0 |
| 21.216.2.58 | 366477882 | 0 |
| 21.216.2.59 | 366477883 | 0 |
| 21.216.2.60 | 366477884 | 0 |
| 21.216.2.61 | 366477885 | 0 |
| 21.216.2.62 | 366477886 | 0 |
| 21.216.2.63 | 366477887 | 0 |
| 21.216.2.64 | 366477888 | 0 |
| 21.216.2.65 | 366477889 | 0 |
| 21.216.2.66 | 366477890 | 0 |
| 21.216.2.67 | 366477891 | 0 |
| 21.216.2.68 | 366477892 | 0 |
| 21.216.2.69 | 366477893 | 0 |
| 21.216.2.70 | 366477894 | 0 |
| 21.216.2.71 | 366477895 | 0 |
| 21.216.2.72 | 366477896 | 0 |
| 21.216.2.73 | 366477897 | 0 |
| 21.216.2.74 | 366477898 | 0 |
| 21.216.2.75 | 366477899 | 0 |
| 21.216.2.76 | 366477900 | 0 |
| 21.216.2.77 | 366477901 | 0 |
| 21.216.2.78 | 366477902 | 0 |
| 21.216.2.79 | 366477903 | 0 |
| 21.216.2.80 | 366477904 | 0 |
| 21.216.2.81 | 366477905 | 0 |
| 21.216.2.82 | 366477906 | 0 |
| 21.216.2.83 | 366477907 | 0 |
| 21.216.2.84 | 366477908 | 0 |
| 21.216.2.85 | 366477909 | 0 |