La dirección IP 21.223.3 es proporcionada por China Education and Research Network Center, que es propiedad de la CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP entre 22.30.204.0 a 22.30.205.255 ). El número de sistema autónomo (ASN) es 4538.
| ASN | 4538 |
| IP que comienzan con | 22.30.204.0 |
| IP que termina con | 22.30.205.255 |
| ASN Nombre | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérica | |
| Registe | |
| Última actualización | 13/08/2018 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | ES | España | - | Madrid | 40,4165 | -3,7026 | 2018-08-13 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2018-08-13 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.223.3.0 | 366936832 | 0 |
| 21.223.3.1 | 366936833 | 0 |
| 21.223.3.2 | 366936834 | 0 |
| 21.223.3.3 | 366936835 | 0 |
| 21.223.3.4 | 366936836 | 0 |
| 21.223.3.5 | 366936837 | 0 |
| 21.223.3.6 | 366936838 | 0 |
| 21.223.3.7 | 366936839 | 0 |
| 21.223.3.8 | 366936840 | 0 |
| 21.223.3.9 | 366936841 | 0 |
| 21.223.3.10 | 366936842 | 0 |
| 21.223.3.11 | 366936843 | 0 |
| 21.223.3.12 | 366936844 | 0 |
| 21.223.3.13 | 366936845 | 0 |
| 21.223.3.14 | 366936846 | 0 |
| 21.223.3.15 | 366936847 | 0 |
| 21.223.3.16 | 366936848 | 0 |
| 21.223.3.17 | 366936849 | 0 |
| 21.223.3.18 | 366936850 | 0 |
| 21.223.3.19 | 366936851 | 0 |
| 21.223.3.20 | 366936852 | 0 |
| 21.223.3.21 | 366936853 | 0 |
| 21.223.3.22 | 366936854 | 0 |
| 21.223.3.23 | 366936855 | 0 |
| 21.223.3.24 | 366936856 | 0 |
| 21.223.3.25 | 366936857 | 0 |
| 21.223.3.26 | 366936858 | 0 |
| 21.223.3.27 | 366936859 | 0 |
| 21.223.3.28 | 366936860 | 0 |
| 21.223.3.29 | 366936861 | 0 |
| 21.223.3.30 | 366936862 | 0 |
| 21.223.3.31 | 366936863 | 0 |
| 21.223.3.32 | 366936864 | 0 |
| 21.223.3.33 | 366936865 | 0 |
| 21.223.3.34 | 366936866 | 0 |
| 21.223.3.35 | 366936867 | 0 |
| 21.223.3.36 | 366936868 | 0 |
| 21.223.3.37 | 366936869 | 0 |
| 21.223.3.38 | 366936870 | 0 |
| 21.223.3.39 | 366936871 | 0 |
| 21.223.3.40 | 366936872 | 0 |
| 21.223.3.41 | 366936873 | 0 |
| 21.223.3.42 | 366936874 | 0 |
| 21.223.3.43 | 366936875 | 0 |
| 21.223.3.44 | 366936876 | 0 |
| 21.223.3.45 | 366936877 | 0 |
| 21.223.3.46 | 366936878 | 0 |
| 21.223.3.47 | 366936879 | 0 |
| 21.223.3.48 | 366936880 | 0 |
| 21.223.3.49 | 366936881 | 0 |
| 21.223.3.50 | 366936882 | 0 |
| 21.223.3.51 | 366936883 | 0 |
| 21.223.3.52 | 366936884 | 0 |
| 21.223.3.53 | 366936885 | 0 |
| 21.223.3.54 | 366936886 | 0 |
| 21.223.3.55 | 366936887 | 0 |
| 21.223.3.56 | 366936888 | 0 |
| 21.223.3.57 | 366936889 | 0 |
| 21.223.3.58 | 366936890 | 0 |
| 21.223.3.59 | 366936891 | 0 |
| 21.223.3.60 | 366936892 | 0 |
| 21.223.3.61 | 366936893 | 0 |
| 21.223.3.62 | 366936894 | 0 |
| 21.223.3.63 | 366936895 | 0 |
| 21.223.3.64 | 366936896 | 0 |
| 21.223.3.65 | 366936897 | 0 |
| 21.223.3.66 | 366936898 | 0 |
| 21.223.3.67 | 366936899 | 0 |
| 21.223.3.68 | 366936900 | 0 |
| 21.223.3.69 | 366936901 | 0 |
| 21.223.3.70 | 366936902 | 0 |
| 21.223.3.71 | 366936903 | 0 |
| 21.223.3.72 | 366936904 | 0 |
| 21.223.3.73 | 366936905 | 0 |
| 21.223.3.74 | 366936906 | 0 |
| 21.223.3.75 | 366936907 | 0 |
| 21.223.3.76 | 366936908 | 0 |
| 21.223.3.77 | 366936909 | 0 |
| 21.223.3.78 | 366936910 | 0 |
| 21.223.3.79 | 366936911 | 0 |
| 21.223.3.80 | 366936912 | 0 |
| 21.223.3.81 | 366936913 | 0 |
| 21.223.3.82 | 366936914 | 0 |
| 21.223.3.83 | 366936915 | 0 |
| 21.223.3.84 | 366936916 | 0 |
| 21.223.3.85 | 366936917 | 0 |