The IP address 21.78.37 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 | 30/12/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-12-30 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-12-30 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.78.37.0 | 357442816 | 0 |
| 21.78.37.1 | 357442817 | 0 |
| 21.78.37.2 | 357442818 | 0 |
| 21.78.37.3 | 357442819 | 0 |
| 21.78.37.4 | 357442820 | 0 |
| 21.78.37.5 | 357442821 | 0 |
| 21.78.37.6 | 357442822 | 0 |
| 21.78.37.7 | 357442823 | 0 |
| 21.78.37.8 | 357442824 | 0 |
| 21.78.37.9 | 357442825 | 0 |
| 21.78.37.10 | 357442826 | 0 |
| 21.78.37.11 | 357442827 | 0 |
| 21.78.37.12 | 357442828 | 0 |
| 21.78.37.13 | 357442829 | 0 |
| 21.78.37.14 | 357442830 | 0 |
| 21.78.37.15 | 357442831 | 0 |
| 21.78.37.16 | 357442832 | 0 |
| 21.78.37.17 | 357442833 | 0 |
| 21.78.37.18 | 357442834 | 0 |
| 21.78.37.19 | 357442835 | 0 |
| 21.78.37.20 | 357442836 | 0 |
| 21.78.37.21 | 357442837 | 0 |
| 21.78.37.22 | 357442838 | 0 |
| 21.78.37.23 | 357442839 | 0 |
| 21.78.37.24 | 357442840 | 0 |
| 21.78.37.25 | 357442841 | 0 |
| 21.78.37.26 | 357442842 | 0 |
| 21.78.37.27 | 357442843 | 0 |
| 21.78.37.28 | 357442844 | 0 |
| 21.78.37.29 | 357442845 | 0 |
| 21.78.37.30 | 357442846 | 0 |
| 21.78.37.31 | 357442847 | 0 |
| 21.78.37.32 | 357442848 | 0 |
| 21.78.37.33 | 357442849 | 0 |
| 21.78.37.34 | 357442850 | 0 |
| 21.78.37.35 | 357442851 | 0 |
| 21.78.37.36 | 357442852 | 0 |
| 21.78.37.37 | 357442853 | 0 |
| 21.78.37.38 | 357442854 | 0 |
| 21.78.37.39 | 357442855 | 0 |
| 21.78.37.40 | 357442856 | 0 |
| 21.78.37.41 | 357442857 | 0 |
| 21.78.37.42 | 357442858 | 0 |
| 21.78.37.43 | 357442859 | 0 |
| 21.78.37.44 | 357442860 | 0 |
| 21.78.37.45 | 357442861 | 0 |
| 21.78.37.46 | 357442862 | 0 |
| 21.78.37.47 | 357442863 | 0 |
| 21.78.37.48 | 357442864 | 0 |
| 21.78.37.49 | 357442865 | 0 |
| 21.78.37.50 | 357442866 | 0 |
| 21.78.37.51 | 357442867 | 0 |
| 21.78.37.52 | 357442868 | 0 |
| 21.78.37.53 | 357442869 | 0 |
| 21.78.37.54 | 357442870 | 0 |
| 21.78.37.55 | 357442871 | 0 |
| 21.78.37.56 | 357442872 | 0 |
| 21.78.37.57 | 357442873 | 0 |
| 21.78.37.58 | 357442874 | 0 |
| 21.78.37.59 | 357442875 | 0 |
| 21.78.37.60 | 357442876 | 0 |
| 21.78.37.61 | 357442877 | 0 |
| 21.78.37.62 | 357442878 | 0 |
| 21.78.37.63 | 357442879 | 0 |
| 21.78.37.64 | 357442880 | 0 |
| 21.78.37.65 | 357442881 | 0 |
| 21.78.37.66 | 357442882 | 0 |
| 21.78.37.67 | 357442883 | 0 |
| 21.78.37.68 | 357442884 | 0 |
| 21.78.37.69 | 357442885 | 0 |
| 21.78.37.70 | 357442886 | 0 |
| 21.78.37.71 | 357442887 | 0 |
| 21.78.37.72 | 357442888 | 0 |
| 21.78.37.73 | 357442889 | 0 |
| 21.78.37.74 | 357442890 | 0 |
| 21.78.37.75 | 357442891 | 0 |
| 21.78.37.76 | 357442892 | 0 |
| 21.78.37.77 | 357442893 | 0 |
| 21.78.37.78 | 357442894 | 0 |
| 21.78.37.79 | 357442895 | 0 |
| 21.78.37.80 | 357442896 | 0 |
| 21.78.37.81 | 357442897 | 0 |
| 21.78.37.82 | 357442898 | 0 |
| 21.78.37.83 | 357442899 | 0 |
| 21.78.37.84 | 357442900 | 0 |
| 21.78.37.85 | 357442901 | 0 |