The IP address 21.91.22 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 | 05/01/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2018-01-05 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2018-01-05 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.91.22.0 | 358290944 | 0 |
| 21.91.22.1 | 358290945 | 0 |
| 21.91.22.2 | 358290946 | 0 |
| 21.91.22.3 | 358290947 | 0 |
| 21.91.22.4 | 358290948 | 0 |
| 21.91.22.5 | 358290949 | 0 |
| 21.91.22.6 | 358290950 | 0 |
| 21.91.22.7 | 358290951 | 0 |
| 21.91.22.8 | 358290952 | 0 |
| 21.91.22.9 | 358290953 | 0 |
| 21.91.22.10 | 358290954 | 0 |
| 21.91.22.11 | 358290955 | 0 |
| 21.91.22.12 | 358290956 | 0 |
| 21.91.22.13 | 358290957 | 0 |
| 21.91.22.14 | 358290958 | 0 |
| 21.91.22.15 | 358290959 | 0 |
| 21.91.22.16 | 358290960 | 0 |
| 21.91.22.17 | 358290961 | 0 |
| 21.91.22.18 | 358290962 | 0 |
| 21.91.22.19 | 358290963 | 0 |
| 21.91.22.20 | 358290964 | 0 |
| 21.91.22.21 | 358290965 | 0 |
| 21.91.22.22 | 358290966 | 0 |
| 21.91.22.23 | 358290967 | 0 |
| 21.91.22.24 | 358290968 | 0 |
| 21.91.22.25 | 358290969 | 0 |
| 21.91.22.26 | 358290970 | 0 |
| 21.91.22.27 | 358290971 | 0 |
| 21.91.22.28 | 358290972 | 0 |
| 21.91.22.29 | 358290973 | 0 |
| 21.91.22.30 | 358290974 | 0 |
| 21.91.22.31 | 358290975 | 0 |
| 21.91.22.32 | 358290976 | 0 |
| 21.91.22.33 | 358290977 | 0 |
| 21.91.22.34 | 358290978 | 0 |
| 21.91.22.35 | 358290979 | 0 |
| 21.91.22.36 | 358290980 | 0 |
| 21.91.22.37 | 358290981 | 0 |
| 21.91.22.38 | 358290982 | 0 |
| 21.91.22.39 | 358290983 | 0 |
| 21.91.22.40 | 358290984 | 0 |
| 21.91.22.41 | 358290985 | 0 |
| 21.91.22.42 | 358290986 | 0 |
| 21.91.22.43 | 358290987 | 0 |
| 21.91.22.44 | 358290988 | 0 |
| 21.91.22.45 | 358290989 | 0 |
| 21.91.22.46 | 358290990 | 0 |
| 21.91.22.47 | 358290991 | 0 |
| 21.91.22.48 | 358290992 | 0 |
| 21.91.22.49 | 358290993 | 0 |
| 21.91.22.50 | 358290994 | 0 |
| 21.91.22.51 | 358290995 | 0 |
| 21.91.22.52 | 358290996 | 0 |
| 21.91.22.53 | 358290997 | 0 |
| 21.91.22.54 | 358290998 | 0 |
| 21.91.22.55 | 358290999 | 0 |
| 21.91.22.56 | 358291000 | 0 |
| 21.91.22.57 | 358291001 | 0 |
| 21.91.22.58 | 358291002 | 0 |
| 21.91.22.59 | 358291003 | 0 |
| 21.91.22.60 | 358291004 | 0 |
| 21.91.22.61 | 358291005 | 0 |
| 21.91.22.62 | 358291006 | 0 |
| 21.91.22.63 | 358291007 | 0 |
| 21.91.22.64 | 358291008 | 0 |
| 21.91.22.65 | 358291009 | 0 |
| 21.91.22.66 | 358291010 | 0 |
| 21.91.22.67 | 358291011 | 0 |
| 21.91.22.68 | 358291012 | 0 |
| 21.91.22.69 | 358291013 | 0 |
| 21.91.22.70 | 358291014 | 0 |
| 21.91.22.71 | 358291015 | 0 |
| 21.91.22.72 | 358291016 | 0 |
| 21.91.22.73 | 358291017 | 0 |
| 21.91.22.74 | 358291018 | 0 |
| 21.91.22.75 | 358291019 | 0 |
| 21.91.22.76 | 358291020 | 0 |
| 21.91.22.77 | 358291021 | 0 |
| 21.91.22.78 | 358291022 | 0 |
| 21.91.22.79 | 358291023 | 0 |
| 21.91.22.80 | 358291024 | 0 |
| 21.91.22.81 | 358291025 | 0 |
| 21.91.22.82 | 358291026 | 0 |
| 21.91.22.83 | 358291027 | 0 |
| 21.91.22.84 | 358291028 | 0 |
| 21.91.22.85 | 358291029 | 0 |