The IP address 21.97.64 is provided by China Education and Research Network Center, it's belong to the CDIR (Classless Inter-Domain Routing) 22.30.204.0/23 (range 22.30.204.0 to 22.30.205.255). The autonomous system number (ASN) is 4538.
| ASN | 4538 |
| IP starting by | 22.30.204.0 |
| IP ending by | 22.30.205.255 |
| ASN Name | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| Numerical IP | |
| Registry | |
| Last update | 04/05/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Houston | 29.7633 | -95.3633 | 2019-05-03 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2019-05-03 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.97.64.0 | 358694912 | 0 |
| 21.97.64.1 | 358694913 | 0 |
| 21.97.64.2 | 358694914 | 0 |
| 21.97.64.3 | 358694915 | 0 |
| 21.97.64.4 | 358694916 | 0 |
| 21.97.64.5 | 358694917 | 0 |
| 21.97.64.6 | 358694918 | 0 |
| 21.97.64.7 | 358694919 | 0 |
| 21.97.64.8 | 358694920 | 0 |
| 21.97.64.9 | 358694921 | 0 |
| 21.97.64.10 | 358694922 | 0 |
| 21.97.64.11 | 358694923 | 0 |
| 21.97.64.12 | 358694924 | 0 |
| 21.97.64.13 | 358694925 | 0 |
| 21.97.64.14 | 358694926 | 0 |
| 21.97.64.15 | 358694927 | 0 |
| 21.97.64.16 | 358694928 | 0 |
| 21.97.64.17 | 358694929 | 0 |
| 21.97.64.18 | 358694930 | 0 |
| 21.97.64.19 | 358694931 | 0 |
| 21.97.64.20 | 358694932 | 0 |
| 21.97.64.21 | 358694933 | 0 |
| 21.97.64.22 | 358694934 | 0 |
| 21.97.64.23 | 358694935 | 0 |
| 21.97.64.24 | 358694936 | 0 |
| 21.97.64.25 | 358694937 | 0 |
| 21.97.64.26 | 358694938 | 0 |
| 21.97.64.27 | 358694939 | 0 |
| 21.97.64.28 | 358694940 | 0 |
| 21.97.64.29 | 358694941 | 0 |
| 21.97.64.30 | 358694942 | 0 |
| 21.97.64.31 | 358694943 | 0 |
| 21.97.64.32 | 358694944 | 0 |
| 21.97.64.33 | 358694945 | 0 |
| 21.97.64.34 | 358694946 | 0 |
| 21.97.64.35 | 358694947 | 0 |
| 21.97.64.36 | 358694948 | 0 |
| 21.97.64.37 | 358694949 | 0 |
| 21.97.64.38 | 358694950 | 0 |
| 21.97.64.39 | 358694951 | 0 |
| 21.97.64.40 | 358694952 | 0 |
| 21.97.64.41 | 358694953 | 0 |
| 21.97.64.42 | 358694954 | 0 |
| 21.97.64.43 | 358694955 | 0 |
| 21.97.64.44 | 358694956 | 0 |
| 21.97.64.45 | 358694957 | 0 |
| 21.97.64.46 | 358694958 | 0 |
| 21.97.64.47 | 358694959 | 0 |
| 21.97.64.48 | 358694960 | 0 |
| 21.97.64.49 | 358694961 | 0 |
| 21.97.64.50 | 358694962 | 0 |
| 21.97.64.51 | 358694963 | 0 |
| 21.97.64.52 | 358694964 | 0 |
| 21.97.64.53 | 358694965 | 0 |
| 21.97.64.54 | 358694966 | 0 |
| 21.97.64.55 | 358694967 | 0 |
| 21.97.64.56 | 358694968 | 0 |
| 21.97.64.57 | 358694969 | 0 |
| 21.97.64.58 | 358694970 | 0 |
| 21.97.64.59 | 358694971 | 0 |
| 21.97.64.60 | 358694972 | 0 |
| 21.97.64.61 | 358694973 | 0 |
| 21.97.64.62 | 358694974 | 0 |
| 21.97.64.63 | 358694975 | 0 |
| 21.97.64.64 | 358694976 | 0 |
| 21.97.64.65 | 358694977 | 0 |
| 21.97.64.66 | 358694978 | 0 |
| 21.97.64.67 | 358694979 | 0 |
| 21.97.64.68 | 358694980 | 0 |
| 21.97.64.69 | 358694981 | 0 |
| 21.97.64.70 | 358694982 | 0 |
| 21.97.64.71 | 358694983 | 0 |
| 21.97.64.72 | 358694984 | 0 |
| 21.97.64.73 | 358694985 | 0 |
| 21.97.64.74 | 358694986 | 0 |
| 21.97.64.75 | 358694987 | 0 |
| 21.97.64.76 | 358694988 | 0 |
| 21.97.64.77 | 358694989 | 0 |
| 21.97.64.78 | 358694990 | 0 |
| 21.97.64.79 | 358694991 | 0 |
| 21.97.64.80 | 358694992 | 0 |
| 21.97.64.81 | 358694993 | 0 |
| 21.97.64.82 | 358694994 | 0 |
| 21.97.64.83 | 358694995 | 0 |
| 21.97.64.84 | 358694996 | 0 |
| 21.97.64.85 | 358694997 | 0 |