The IP address 21.99.52 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 | 05/05/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Houston | 29.7633 | -95.3633 | 2019-05-04 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2019-05-04 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.99.52.0 | 358822912 | 0 |
| 21.99.52.1 | 358822913 | 0 |
| 21.99.52.2 | 358822914 | 0 |
| 21.99.52.3 | 358822915 | 0 |
| 21.99.52.4 | 358822916 | 0 |
| 21.99.52.5 | 358822917 | 0 |
| 21.99.52.6 | 358822918 | 0 |
| 21.99.52.7 | 358822919 | 0 |
| 21.99.52.8 | 358822920 | 0 |
| 21.99.52.9 | 358822921 | 0 |
| 21.99.52.10 | 358822922 | 0 |
| 21.99.52.11 | 358822923 | 0 |
| 21.99.52.12 | 358822924 | 0 |
| 21.99.52.13 | 358822925 | 0 |
| 21.99.52.14 | 358822926 | 0 |
| 21.99.52.15 | 358822927 | 0 |
| 21.99.52.16 | 358822928 | 0 |
| 21.99.52.17 | 358822929 | 0 |
| 21.99.52.18 | 358822930 | 0 |
| 21.99.52.19 | 358822931 | 0 |
| 21.99.52.20 | 358822932 | 0 |
| 21.99.52.21 | 358822933 | 0 |
| 21.99.52.22 | 358822934 | 0 |
| 21.99.52.23 | 358822935 | 0 |
| 21.99.52.24 | 358822936 | 0 |
| 21.99.52.25 | 358822937 | 0 |
| 21.99.52.26 | 358822938 | 0 |
| 21.99.52.27 | 358822939 | 0 |
| 21.99.52.28 | 358822940 | 0 |
| 21.99.52.29 | 358822941 | 0 |
| 21.99.52.30 | 358822942 | 0 |
| 21.99.52.31 | 358822943 | 0 |
| 21.99.52.32 | 358822944 | 0 |
| 21.99.52.33 | 358822945 | 0 |
| 21.99.52.34 | 358822946 | 0 |
| 21.99.52.35 | 358822947 | 0 |
| 21.99.52.36 | 358822948 | 0 |
| 21.99.52.37 | 358822949 | 0 |
| 21.99.52.38 | 358822950 | 0 |
| 21.99.52.39 | 358822951 | 0 |
| 21.99.52.40 | 358822952 | 0 |
| 21.99.52.41 | 358822953 | 0 |
| 21.99.52.42 | 358822954 | 0 |
| 21.99.52.43 | 358822955 | 0 |
| 21.99.52.44 | 358822956 | 0 |
| 21.99.52.45 | 358822957 | 0 |
| 21.99.52.46 | 358822958 | 0 |
| 21.99.52.47 | 358822959 | 0 |
| 21.99.52.48 | 358822960 | 0 |
| 21.99.52.49 | 358822961 | 0 |
| 21.99.52.50 | 358822962 | 0 |
| 21.99.52.51 | 358822963 | 0 |
| 21.99.52.52 | 358822964 | 0 |
| 21.99.52.53 | 358822965 | 0 |
| 21.99.52.54 | 358822966 | 0 |
| 21.99.52.55 | 358822967 | 0 |
| 21.99.52.56 | 358822968 | 0 |
| 21.99.52.57 | 358822969 | 0 |
| 21.99.52.58 | 358822970 | 0 |
| 21.99.52.59 | 358822971 | 0 |
| 21.99.52.60 | 358822972 | 0 |
| 21.99.52.61 | 358822973 | 0 |
| 21.99.52.62 | 358822974 | 0 |
| 21.99.52.63 | 358822975 | 0 |
| 21.99.52.64 | 358822976 | 0 |
| 21.99.52.65 | 358822977 | 0 |
| 21.99.52.66 | 358822978 | 0 |
| 21.99.52.67 | 358822979 | 0 |
| 21.99.52.68 | 358822980 | 0 |
| 21.99.52.69 | 358822981 | 0 |
| 21.99.52.70 | 358822982 | 0 |
| 21.99.52.71 | 358822983 | 0 |
| 21.99.52.72 | 358822984 | 0 |
| 21.99.52.73 | 358822985 | 0 |
| 21.99.52.74 | 358822986 | 0 |
| 21.99.52.75 | 358822987 | 0 |
| 21.99.52.76 | 358822988 | 0 |
| 21.99.52.77 | 358822989 | 0 |
| 21.99.52.78 | 358822990 | 0 |
| 21.99.52.79 | 358822991 | 0 |
| 21.99.52.80 | 358822992 | 0 |
| 21.99.52.81 | 358822993 | 0 |
| 21.99.52.82 | 358822994 | 0 |
| 21.99.52.83 | 358822995 | 0 |
| 21.99.52.84 | 358822996 | 0 |
| 21.99.52.85 | 358822997 | 0 |