Les adresses IP débutant par 21.78.72 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 | 16/08/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Clovis | 34,4048 | -103,2052 | 2018-08-16 |
| MaxMind | US | États-Unis | - | - | 37,751 | -97,822 | 2018-08-16 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.78.72.0 | 357451776 | 0 |
| 21.78.72.1 | 357451777 | 0 |
| 21.78.72.2 | 357451778 | 0 |
| 21.78.72.3 | 357451779 | 0 |
| 21.78.72.4 | 357451780 | 0 |
| 21.78.72.5 | 357451781 | 0 |
| 21.78.72.6 | 357451782 | 0 |
| 21.78.72.7 | 357451783 | 0 |
| 21.78.72.8 | 357451784 | 0 |
| 21.78.72.9 | 357451785 | 0 |
| 21.78.72.10 | 357451786 | 0 |
| 21.78.72.11 | 357451787 | 0 |
| 21.78.72.12 | 357451788 | 0 |
| 21.78.72.13 | 357451789 | 0 |
| 21.78.72.14 | 357451790 | 0 |
| 21.78.72.15 | 357451791 | 0 |
| 21.78.72.16 | 357451792 | 0 |
| 21.78.72.17 | 357451793 | 0 |
| 21.78.72.18 | 357451794 | 0 |
| 21.78.72.19 | 357451795 | 0 |
| 21.78.72.20 | 357451796 | 0 |
| 21.78.72.21 | 357451797 | 0 |
| 21.78.72.22 | 357451798 | 0 |
| 21.78.72.23 | 357451799 | 0 |
| 21.78.72.24 | 357451800 | 0 |
| 21.78.72.25 | 357451801 | 0 |
| 21.78.72.26 | 357451802 | 0 |
| 21.78.72.27 | 357451803 | 0 |
| 21.78.72.28 | 357451804 | 0 |
| 21.78.72.29 | 357451805 | 0 |
| 21.78.72.30 | 357451806 | 0 |
| 21.78.72.31 | 357451807 | 0 |
| 21.78.72.32 | 357451808 | 0 |
| 21.78.72.33 | 357451809 | 0 |
| 21.78.72.34 | 357451810 | 0 |
| 21.78.72.35 | 357451811 | 0 |
| 21.78.72.36 | 357451812 | 0 |
| 21.78.72.37 | 357451813 | 0 |
| 21.78.72.38 | 357451814 | 0 |
| 21.78.72.39 | 357451815 | 0 |
| 21.78.72.40 | 357451816 | 0 |
| 21.78.72.41 | 357451817 | 0 |
| 21.78.72.42 | 357451818 | 0 |
| 21.78.72.43 | 357451819 | 0 |
| 21.78.72.44 | 357451820 | 0 |
| 21.78.72.45 | 357451821 | 0 |
| 21.78.72.46 | 357451822 | 0 |
| 21.78.72.47 | 357451823 | 0 |
| 21.78.72.48 | 357451824 | 0 |
| 21.78.72.49 | 357451825 | 0 |
| 21.78.72.50 | 357451826 | 0 |
| 21.78.72.51 | 357451827 | 0 |
| 21.78.72.52 | 357451828 | 0 |
| 21.78.72.53 | 357451829 | 0 |
| 21.78.72.54 | 357451830 | 0 |
| 21.78.72.55 | 357451831 | 0 |
| 21.78.72.56 | 357451832 | 0 |
| 21.78.72.57 | 357451833 | 0 |
| 21.78.72.58 | 357451834 | 0 |
| 21.78.72.59 | 357451835 | 0 |
| 21.78.72.60 | 357451836 | 0 |
| 21.78.72.61 | 357451837 | 0 |
| 21.78.72.62 | 357451838 | 0 |
| 21.78.72.63 | 357451839 | 0 |
| 21.78.72.64 | 357451840 | 0 |
| 21.78.72.65 | 357451841 | 0 |
| 21.78.72.66 | 357451842 | 0 |
| 21.78.72.67 | 357451843 | 0 |
| 21.78.72.68 | 357451844 | 0 |
| 21.78.72.69 | 357451845 | 0 |
| 21.78.72.70 | 357451846 | 0 |
| 21.78.72.71 | 357451847 | 0 |
| 21.78.72.72 | 357451848 | 0 |
| 21.78.72.73 | 357451849 | 0 |
| 21.78.72.74 | 357451850 | 0 |
| 21.78.72.75 | 357451851 | 0 |
| 21.78.72.76 | 357451852 | 0 |
| 21.78.72.77 | 357451853 | 0 |
| 21.78.72.78 | 357451854 | 0 |
| 21.78.72.79 | 357451855 | 0 |
| 21.78.72.80 | 357451856 | 0 |
| 21.78.72.81 | 357451857 | 0 |
| 21.78.72.82 | 357451858 | 0 |
| 21.78.72.83 | 357451859 | 0 |
| 21.78.72.84 | 357451860 | 0 |
| 21.78.72.85 | 357451861 | 0 |