The IP address 21.253.3 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 | 21/02/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2018-02-21 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2018-02-21 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.253.3.0 | 368902912 | 0 |
| 21.253.3.1 | 368902913 | 0 |
| 21.253.3.2 | 368902914 | 0 |
| 21.253.3.3 | 368902915 | 0 |
| 21.253.3.4 | 368902916 | 0 |
| 21.253.3.5 | 368902917 | 0 |
| 21.253.3.6 | 368902918 | 0 |
| 21.253.3.7 | 368902919 | 0 |
| 21.253.3.8 | 368902920 | 0 |
| 21.253.3.9 | 368902921 | 0 |
| 21.253.3.10 | 368902922 | 0 |
| 21.253.3.11 | 368902923 | 0 |
| 21.253.3.12 | 368902924 | 0 |
| 21.253.3.13 | 368902925 | 0 |
| 21.253.3.14 | 368902926 | 0 |
| 21.253.3.15 | 368902927 | 0 |
| 21.253.3.16 | 368902928 | 0 |
| 21.253.3.17 | 368902929 | 0 |
| 21.253.3.18 | 368902930 | 0 |
| 21.253.3.19 | 368902931 | 0 |
| 21.253.3.20 | 368902932 | 0 |
| 21.253.3.21 | 368902933 | 0 |
| 21.253.3.22 | 368902934 | 0 |
| 21.253.3.23 | 368902935 | 0 |
| 21.253.3.24 | 368902936 | 0 |
| 21.253.3.25 | 368902937 | 0 |
| 21.253.3.26 | 368902938 | 0 |
| 21.253.3.27 | 368902939 | 0 |
| 21.253.3.28 | 368902940 | 0 |
| 21.253.3.29 | 368902941 | 0 |
| 21.253.3.30 | 368902942 | 0 |
| 21.253.3.31 | 368902943 | 0 |
| 21.253.3.32 | 368902944 | 0 |
| 21.253.3.33 | 368902945 | 0 |
| 21.253.3.34 | 368902946 | 0 |
| 21.253.3.35 | 368902947 | 0 |
| 21.253.3.36 | 368902948 | 0 |
| 21.253.3.37 | 368902949 | 0 |
| 21.253.3.38 | 368902950 | 0 |
| 21.253.3.39 | 368902951 | 0 |
| 21.253.3.40 | 368902952 | 0 |
| 21.253.3.41 | 368902953 | 0 |
| 21.253.3.42 | 368902954 | 0 |
| 21.253.3.43 | 368902955 | 0 |
| 21.253.3.44 | 368902956 | 0 |
| 21.253.3.45 | 368902957 | 0 |
| 21.253.3.46 | 368902958 | 0 |
| 21.253.3.47 | 368902959 | 0 |
| 21.253.3.48 | 368902960 | 0 |
| 21.253.3.49 | 368902961 | 0 |
| 21.253.3.50 | 368902962 | 0 |
| 21.253.3.51 | 368902963 | 0 |
| 21.253.3.52 | 368902964 | 0 |
| 21.253.3.53 | 368902965 | 0 |
| 21.253.3.54 | 368902966 | 0 |
| 21.253.3.55 | 368902967 | 0 |
| 21.253.3.56 | 368902968 | 0 |
| 21.253.3.57 | 368902969 | 0 |
| 21.253.3.58 | 368902970 | 0 |
| 21.253.3.59 | 368902971 | 0 |
| 21.253.3.60 | 368902972 | 0 |
| 21.253.3.61 | 368902973 | 0 |
| 21.253.3.62 | 368902974 | 0 |
| 21.253.3.63 | 368902975 | 0 |
| 21.253.3.64 | 368902976 | 0 |
| 21.253.3.65 | 368902977 | 0 |
| 21.253.3.66 | 368902978 | 0 |
| 21.253.3.67 | 368902979 | 0 |
| 21.253.3.68 | 368902980 | 0 |
| 21.253.3.69 | 368902981 | 0 |
| 21.253.3.70 | 368902982 | 0 |
| 21.253.3.71 | 368902983 | 0 |
| 21.253.3.72 | 368902984 | 0 |
| 21.253.3.73 | 368902985 | 0 |
| 21.253.3.74 | 368902986 | 0 |
| 21.253.3.75 | 368902987 | 0 |
| 21.253.3.76 | 368902988 | 0 |
| 21.253.3.77 | 368902989 | 0 |
| 21.253.3.78 | 368902990 | 0 |
| 21.253.3.79 | 368902991 | 0 |
| 21.253.3.80 | 368902992 | 0 |
| 21.253.3.81 | 368902993 | 0 |
| 21.253.3.82 | 368902994 | 0 |
| 21.253.3.83 | 368902995 | 0 |
| 21.253.3.84 | 368902996 | 0 |
| 21.253.3.85 | 368902997 | 0 |