La dirección IP 21.76.57 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 | 16/10/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2017-10-15 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2017-10-15 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.76.57.0 | 357316864 | 0 |
| 21.76.57.1 | 357316865 | 0 |
| 21.76.57.2 | 357316866 | 0 |
| 21.76.57.3 | 357316867 | 0 |
| 21.76.57.4 | 357316868 | 0 |
| 21.76.57.5 | 357316869 | 0 |
| 21.76.57.6 | 357316870 | 0 |
| 21.76.57.7 | 357316871 | 0 |
| 21.76.57.8 | 357316872 | 0 |
| 21.76.57.9 | 357316873 | 0 |
| 21.76.57.10 | 357316874 | 0 |
| 21.76.57.11 | 357316875 | 0 |
| 21.76.57.12 | 357316876 | 0 |
| 21.76.57.13 | 357316877 | 0 |
| 21.76.57.14 | 357316878 | 0 |
| 21.76.57.15 | 357316879 | 0 |
| 21.76.57.16 | 357316880 | 0 |
| 21.76.57.17 | 357316881 | 0 |
| 21.76.57.18 | 357316882 | 0 |
| 21.76.57.19 | 357316883 | 0 |
| 21.76.57.20 | 357316884 | 0 |
| 21.76.57.21 | 357316885 | 0 |
| 21.76.57.22 | 357316886 | 0 |
| 21.76.57.23 | 357316887 | 0 |
| 21.76.57.24 | 357316888 | 0 |
| 21.76.57.25 | 357316889 | 0 |
| 21.76.57.26 | 357316890 | 0 |
| 21.76.57.27 | 357316891 | 0 |
| 21.76.57.28 | 357316892 | 0 |
| 21.76.57.29 | 357316893 | 0 |
| 21.76.57.30 | 357316894 | 0 |
| 21.76.57.31 | 357316895 | 0 |
| 21.76.57.32 | 357316896 | 0 |
| 21.76.57.33 | 357316897 | 0 |
| 21.76.57.34 | 357316898 | 0 |
| 21.76.57.35 | 357316899 | 0 |
| 21.76.57.36 | 357316900 | 0 |
| 21.76.57.37 | 357316901 | 0 |
| 21.76.57.38 | 357316902 | 0 |
| 21.76.57.39 | 357316903 | 0 |
| 21.76.57.40 | 357316904 | 0 |
| 21.76.57.41 | 357316905 | 0 |
| 21.76.57.42 | 357316906 | 0 |
| 21.76.57.43 | 357316907 | 0 |
| 21.76.57.44 | 357316908 | 0 |
| 21.76.57.45 | 357316909 | 0 |
| 21.76.57.46 | 357316910 | 0 |
| 21.76.57.47 | 357316911 | 0 |
| 21.76.57.48 | 357316912 | 0 |
| 21.76.57.49 | 357316913 | 0 |
| 21.76.57.50 | 357316914 | 0 |
| 21.76.57.51 | 357316915 | 0 |
| 21.76.57.52 | 357316916 | 0 |
| 21.76.57.53 | 357316917 | 0 |
| 21.76.57.54 | 357316918 | 0 |
| 21.76.57.55 | 357316919 | 0 |
| 21.76.57.56 | 357316920 | 0 |
| 21.76.57.57 | 357316921 | 0 |
| 21.76.57.58 | 357316922 | 0 |
| 21.76.57.59 | 357316923 | 0 |
| 21.76.57.60 | 357316924 | 0 |
| 21.76.57.61 | 357316925 | 0 |
| 21.76.57.62 | 357316926 | 0 |
| 21.76.57.63 | 357316927 | 0 |
| 21.76.57.64 | 357316928 | 0 |
| 21.76.57.65 | 357316929 | 0 |
| 21.76.57.66 | 357316930 | 0 |
| 21.76.57.67 | 357316931 | 0 |
| 21.76.57.68 | 357316932 | 0 |
| 21.76.57.69 | 357316933 | 0 |
| 21.76.57.70 | 357316934 | 0 |
| 21.76.57.71 | 357316935 | 0 |
| 21.76.57.72 | 357316936 | 0 |
| 21.76.57.73 | 357316937 | 0 |
| 21.76.57.74 | 357316938 | 0 |
| 21.76.57.75 | 357316939 | 0 |
| 21.76.57.76 | 357316940 | 0 |
| 21.76.57.77 | 357316941 | 0 |
| 21.76.57.78 | 357316942 | 0 |
| 21.76.57.79 | 357316943 | 0 |
| 21.76.57.80 | 357316944 | 0 |
| 21.76.57.81 | 357316945 | 0 |
| 21.76.57.82 | 357316946 | 0 |
| 21.76.57.83 | 357316947 | 0 |
| 21.76.57.84 | 357316948 | 0 |
| 21.76.57.85 | 357316949 | 0 |