Les adresses IP débutant par 21.244.2 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 | 30/11/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | ES | Espagne | - | Madrid | 40,4165 | -3,7026 | 2018-11-30 |
| MaxMind | US | États-Unis | - | - | 37,751 | -97,822 | 2018-11-30 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.244.2.0 | 368312832 | 0 |
| 21.244.2.1 | 368312833 | 0 |
| 21.244.2.2 | 368312834 | 0 |
| 21.244.2.3 | 368312835 | 0 |
| 21.244.2.4 | 368312836 | 0 |
| 21.244.2.5 | 368312837 | 0 |
| 21.244.2.6 | 368312838 | 0 |
| 21.244.2.7 | 368312839 | 0 |
| 21.244.2.8 | 368312840 | 0 |
| 21.244.2.9 | 368312841 | 0 |
| 21.244.2.10 | 368312842 | 0 |
| 21.244.2.11 | 368312843 | 0 |
| 21.244.2.12 | 368312844 | 0 |
| 21.244.2.13 | 368312845 | 0 |
| 21.244.2.14 | 368312846 | 0 |
| 21.244.2.15 | 368312847 | 0 |
| 21.244.2.16 | 368312848 | 0 |
| 21.244.2.17 | 368312849 | 0 |
| 21.244.2.18 | 368312850 | 0 |
| 21.244.2.19 | 368312851 | 0 |
| 21.244.2.20 | 368312852 | 0 |
| 21.244.2.21 | 368312853 | 0 |
| 21.244.2.22 | 368312854 | 0 |
| 21.244.2.23 | 368312855 | 0 |
| 21.244.2.24 | 368312856 | 0 |
| 21.244.2.25 | 368312857 | 0 |
| 21.244.2.26 | 368312858 | 0 |
| 21.244.2.27 | 368312859 | 0 |
| 21.244.2.28 | 368312860 | 0 |
| 21.244.2.29 | 368312861 | 0 |
| 21.244.2.30 | 368312862 | 0 |
| 21.244.2.31 | 368312863 | 0 |
| 21.244.2.32 | 368312864 | 0 |
| 21.244.2.33 | 368312865 | 0 |
| 21.244.2.34 | 368312866 | 0 |
| 21.244.2.35 | 368312867 | 0 |
| 21.244.2.36 | 368312868 | 0 |
| 21.244.2.37 | 368312869 | 0 |
| 21.244.2.38 | 368312870 | 0 |
| 21.244.2.39 | 368312871 | 0 |
| 21.244.2.40 | 368312872 | 0 |
| 21.244.2.41 | 368312873 | 0 |
| 21.244.2.42 | 368312874 | 0 |
| 21.244.2.43 | 368312875 | 0 |
| 21.244.2.44 | 368312876 | 0 |
| 21.244.2.45 | 368312877 | 0 |
| 21.244.2.46 | 368312878 | 0 |
| 21.244.2.47 | 368312879 | 0 |
| 21.244.2.48 | 368312880 | 0 |
| 21.244.2.49 | 368312881 | 0 |
| 21.244.2.50 | 368312882 | 0 |
| 21.244.2.51 | 368312883 | 0 |
| 21.244.2.52 | 368312884 | 0 |
| 21.244.2.53 | 368312885 | 0 |
| 21.244.2.54 | 368312886 | 0 |
| 21.244.2.55 | 368312887 | 0 |
| 21.244.2.56 | 368312888 | 0 |
| 21.244.2.57 | 368312889 | 0 |
| 21.244.2.58 | 368312890 | 0 |
| 21.244.2.59 | 368312891 | 0 |
| 21.244.2.60 | 368312892 | 0 |
| 21.244.2.61 | 368312893 | 0 |
| 21.244.2.62 | 368312894 | 0 |
| 21.244.2.63 | 368312895 | 0 |
| 21.244.2.64 | 368312896 | 0 |
| 21.244.2.65 | 368312897 | 0 |
| 21.244.2.66 | 368312898 | 0 |
| 21.244.2.67 | 368312899 | 0 |
| 21.244.2.68 | 368312900 | 0 |
| 21.244.2.69 | 368312901 | 0 |
| 21.244.2.70 | 368312902 | 0 |
| 21.244.2.71 | 368312903 | 0 |
| 21.244.2.72 | 368312904 | 0 |
| 21.244.2.73 | 368312905 | 0 |
| 21.244.2.74 | 368312906 | 0 |
| 21.244.2.75 | 368312907 | 0 |
| 21.244.2.76 | 368312908 | 0 |
| 21.244.2.77 | 368312909 | 0 |
| 21.244.2.78 | 368312910 | 0 |
| 21.244.2.79 | 368312911 | 0 |
| 21.244.2.80 | 368312912 | 0 |
| 21.244.2.81 | 368312913 | 0 |
| 21.244.2.82 | 368312914 | 0 |
| 21.244.2.83 | 368312915 | 0 |
| 21.244.2.84 | 368312916 | 0 |
| 21.244.2.85 | 368312917 | 0 |