The IP address 21.91.45 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 | 20/11/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Houston | 29.7633 | -95.3633 | 2019-11-19 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2019-11-19 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.91.45.0 | 358296832 | 0 |
| 21.91.45.1 | 358296833 | 0 |
| 21.91.45.2 | 358296834 | 0 |
| 21.91.45.3 | 358296835 | 0 |
| 21.91.45.4 | 358296836 | 0 |
| 21.91.45.5 | 358296837 | 0 |
| 21.91.45.6 | 358296838 | 0 |
| 21.91.45.7 | 358296839 | 0 |
| 21.91.45.8 | 358296840 | 0 |
| 21.91.45.9 | 358296841 | 0 |
| 21.91.45.10 | 358296842 | 0 |
| 21.91.45.11 | 358296843 | 0 |
| 21.91.45.12 | 358296844 | 0 |
| 21.91.45.13 | 358296845 | 0 |
| 21.91.45.14 | 358296846 | 0 |
| 21.91.45.15 | 358296847 | 0 |
| 21.91.45.16 | 358296848 | 0 |
| 21.91.45.17 | 358296849 | 0 |
| 21.91.45.18 | 358296850 | 0 |
| 21.91.45.19 | 358296851 | 0 |
| 21.91.45.20 | 358296852 | 0 |
| 21.91.45.21 | 358296853 | 0 |
| 21.91.45.22 | 358296854 | 0 |
| 21.91.45.23 | 358296855 | 0 |
| 21.91.45.24 | 358296856 | 0 |
| 21.91.45.25 | 358296857 | 0 |
| 21.91.45.26 | 358296858 | 0 |
| 21.91.45.27 | 358296859 | 0 |
| 21.91.45.28 | 358296860 | 0 |
| 21.91.45.29 | 358296861 | 0 |
| 21.91.45.30 | 358296862 | 0 |
| 21.91.45.31 | 358296863 | 0 |
| 21.91.45.32 | 358296864 | 0 |
| 21.91.45.33 | 358296865 | 0 |
| 21.91.45.34 | 358296866 | 0 |
| 21.91.45.35 | 358296867 | 0 |
| 21.91.45.36 | 358296868 | 0 |
| 21.91.45.37 | 358296869 | 0 |
| 21.91.45.38 | 358296870 | 0 |
| 21.91.45.39 | 358296871 | 0 |
| 21.91.45.40 | 358296872 | 0 |
| 21.91.45.41 | 358296873 | 0 |
| 21.91.45.42 | 358296874 | 0 |
| 21.91.45.43 | 358296875 | 0 |
| 21.91.45.44 | 358296876 | 0 |
| 21.91.45.45 | 358296877 | 0 |
| 21.91.45.46 | 358296878 | 0 |
| 21.91.45.47 | 358296879 | 0 |
| 21.91.45.48 | 358296880 | 0 |
| 21.91.45.49 | 358296881 | 0 |
| 21.91.45.50 | 358296882 | 0 |
| 21.91.45.51 | 358296883 | 0 |
| 21.91.45.52 | 358296884 | 0 |
| 21.91.45.53 | 358296885 | 0 |
| 21.91.45.54 | 358296886 | 0 |
| 21.91.45.55 | 358296887 | 0 |
| 21.91.45.56 | 358296888 | 0 |
| 21.91.45.57 | 358296889 | 0 |
| 21.91.45.58 | 358296890 | 0 |
| 21.91.45.59 | 358296891 | 0 |
| 21.91.45.60 | 358296892 | 0 |
| 21.91.45.61 | 358296893 | 0 |
| 21.91.45.62 | 358296894 | 0 |
| 21.91.45.63 | 358296895 | 0 |
| 21.91.45.64 | 358296896 | 0 |
| 21.91.45.65 | 358296897 | 0 |
| 21.91.45.66 | 358296898 | 0 |
| 21.91.45.67 | 358296899 | 0 |
| 21.91.45.68 | 358296900 | 0 |
| 21.91.45.69 | 358296901 | 0 |
| 21.91.45.70 | 358296902 | 0 |
| 21.91.45.71 | 358296903 | 0 |
| 21.91.45.72 | 358296904 | 0 |
| 21.91.45.73 | 358296905 | 0 |
| 21.91.45.74 | 358296906 | 0 |
| 21.91.45.75 | 358296907 | 0 |
| 21.91.45.76 | 358296908 | 0 |
| 21.91.45.77 | 358296909 | 0 |
| 21.91.45.78 | 358296910 | 0 |
| 21.91.45.79 | 358296911 | 0 |
| 21.91.45.80 | 358296912 | 0 |
| 21.91.45.81 | 358296913 | 0 |
| 21.91.45.82 | 358296914 | 0 |
| 21.91.45.83 | 358296915 | 0 |
| 21.91.45.84 | 358296916 | 0 |
| 21.91.45.85 | 358296917 | 0 |