The IP address 121.21.72 is provided by CNC Group, it's belong to the CDIR (Classless Inter-Domain Routing) 121.16.0.0/13 (range 121.16.0.0 to 121.23.255.255). The autonomous system number (ASN) is 4837.
| ASN | 4837 |
| IP starting by | 121.16.0.0 |
| IP ending by | 121.23.255.255 |
| ASN Name | CNC Group |
| CDIR | 121.16.0.0/13 |
| Numerical IP | |
| Registry | apnic |
| Last update | 03/12/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | CN | China | - | Shijiazhuang | 38.0414 | 114.4786 | 2017-12-03 |
| MaxMind | CN | China | - | Hebei | 39.8897 | 115.275 | 2017-12-03 |
| Whois | CN | - | - | - | 104 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.21.72.0 | 2031437824 | 0 |
| 121.21.72.1 | 2031437825 | 0 |
| 121.21.72.2 | 2031437826 | 0 |
| 121.21.72.3 | 2031437827 | 0 |
| 121.21.72.4 | 2031437828 | 0 |
| 121.21.72.5 | 2031437829 | 0 |
| 121.21.72.6 | 2031437830 | 0 |
| 121.21.72.7 | 2031437831 | 0 |
| 121.21.72.8 | 2031437832 | 0 |
| 121.21.72.9 | 2031437833 | 0 |
| 121.21.72.10 | 2031437834 | 0 |
| 121.21.72.11 | 2031437835 | 0 |
| 121.21.72.12 | 2031437836 | 0 |
| 121.21.72.13 | 2031437837 | 0 |
| 121.21.72.14 | 2031437838 | 0 |
| 121.21.72.15 | 2031437839 | 0 |
| 121.21.72.16 | 2031437840 | 0 |
| 121.21.72.17 | 2031437841 | 0 |
| 121.21.72.18 | 2031437842 | 0 |
| 121.21.72.19 | 2031437843 | 0 |
| 121.21.72.20 | 2031437844 | 0 |
| 121.21.72.21 | 2031437845 | 0 |
| 121.21.72.22 | 2031437846 | 0 |
| 121.21.72.23 | 2031437847 | 0 |
| 121.21.72.24 | 2031437848 | 0 |
| 121.21.72.25 | 2031437849 | 0 |
| 121.21.72.26 | 2031437850 | 0 |
| 121.21.72.27 | 2031437851 | 0 |
| 121.21.72.28 | 2031437852 | 0 |
| 121.21.72.29 | 2031437853 | 0 |
| 121.21.72.30 | 2031437854 | 0 |
| 121.21.72.31 | 2031437855 | 0 |
| 121.21.72.32 | 2031437856 | 0 |
| 121.21.72.33 | 2031437857 | 0 |
| 121.21.72.34 | 2031437858 | 0 |
| 121.21.72.35 | 2031437859 | 0 |
| 121.21.72.36 | 2031437860 | 0 |
| 121.21.72.37 | 2031437861 | 0 |
| 121.21.72.38 | 2031437862 | 0 |
| 121.21.72.39 | 2031437863 | 0 |
| 121.21.72.40 | 2031437864 | 0 |
| 121.21.72.41 | 2031437865 | 0 |
| 121.21.72.42 | 2031437866 | 0 |
| 121.21.72.43 | 2031437867 | 0 |
| 121.21.72.44 | 2031437868 | 0 |
| 121.21.72.45 | 2031437869 | 0 |
| 121.21.72.46 | 2031437870 | 0 |
| 121.21.72.47 | 2031437871 | 0 |
| 121.21.72.48 | 2031437872 | 0 |
| 121.21.72.49 | 2031437873 | 0 |
| 121.21.72.50 | 2031437874 | 0 |
| 121.21.72.51 | 2031437875 | 0 |
| 121.21.72.52 | 2031437876 | 0 |
| 121.21.72.53 | 2031437877 | 0 |
| 121.21.72.54 | 2031437878 | 0 |
| 121.21.72.55 | 2031437879 | 0 |
| 121.21.72.56 | 2031437880 | 0 |
| 121.21.72.57 | 2031437881 | 0 |
| 121.21.72.58 | 2031437882 | 0 |
| 121.21.72.59 | 2031437883 | 0 |
| 121.21.72.60 | 2031437884 | 0 |
| 121.21.72.61 | 2031437885 | 0 |
| 121.21.72.62 | 2031437886 | 0 |
| 121.21.72.63 | 2031437887 | 0 |
| 121.21.72.64 | 2031437888 | 0 |
| 121.21.72.65 | 2031437889 | 0 |
| 121.21.72.66 | 2031437890 | 0 |
| 121.21.72.67 | 2031437891 | 0 |
| 121.21.72.68 | 2031437892 | 0 |
| 121.21.72.69 | 2031437893 | 0 |
| 121.21.72.70 | 2031437894 | 0 |
| 121.21.72.71 | 2031437895 | 0 |
| 121.21.72.72 | 2031437896 | 0 |
| 121.21.72.73 | 2031437897 | 0 |
| 121.21.72.74 | 2031437898 | 0 |
| 121.21.72.75 | 2031437899 | 0 |
| 121.21.72.76 | 2031437900 | 0 |
| 121.21.72.77 | 2031437901 | 0 |
| 121.21.72.78 | 2031437902 | 0 |
| 121.21.72.79 | 2031437903 | 0 |
| 121.21.72.80 | 2031437904 | 0 |
| 121.21.72.81 | 2031437905 | 0 |
| 121.21.72.82 | 2031437906 | 0 |
| 121.21.72.83 | 2031437907 | 0 |
| 121.21.72.84 | 2031437908 | 0 |
| 121.21.72.85 | 2031437909 | 0 |