The IP address 21.4.185 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 | 13/07/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-07-03 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-07-03 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.4.185.0 | 352631040 | 0 |
| 21.4.185.1 | 352631041 | 0 |
| 21.4.185.2 | 352631042 | 0 |
| 21.4.185.3 | 352631043 | 0 |
| 21.4.185.4 | 352631044 | 0 |
| 21.4.185.5 | 352631045 | 0 |
| 21.4.185.6 | 352631046 | 0 |
| 21.4.185.7 | 352631047 | 0 |
| 21.4.185.8 | 352631048 | 0 |
| 21.4.185.9 | 352631049 | 0 |
| 21.4.185.10 | 352631050 | 0 |
| 21.4.185.11 | 352631051 | 0 |
| 21.4.185.12 | 352631052 | 0 |
| 21.4.185.13 | 352631053 | 0 |
| 21.4.185.14 | 352631054 | 0 |
| 21.4.185.15 | 352631055 | 0 |
| 21.4.185.16 | 352631056 | 0 |
| 21.4.185.17 | 352631057 | 0 |
| 21.4.185.18 | 352631058 | 0 |
| 21.4.185.19 | 352631059 | 0 |
| 21.4.185.20 | 352631060 | 0 |
| 21.4.185.21 | 352631061 | 0 |
| 21.4.185.22 | 352631062 | 0 |
| 21.4.185.23 | 352631063 | 0 |
| 21.4.185.24 | 352631064 | 0 |
| 21.4.185.25 | 352631065 | 0 |
| 21.4.185.26 | 352631066 | 0 |
| 21.4.185.27 | 352631067 | 0 |
| 21.4.185.28 | 352631068 | 0 |
| 21.4.185.29 | 352631069 | 0 |
| 21.4.185.30 | 352631070 | 0 |
| 21.4.185.31 | 352631071 | 0 |
| 21.4.185.32 | 352631072 | 0 |
| 21.4.185.33 | 352631073 | 0 |
| 21.4.185.34 | 352631074 | 0 |
| 21.4.185.35 | 352631075 | 0 |
| 21.4.185.36 | 352631076 | 0 |
| 21.4.185.37 | 352631077 | 0 |
| 21.4.185.38 | 352631078 | 0 |
| 21.4.185.39 | 352631079 | 0 |
| 21.4.185.40 | 352631080 | 0 |
| 21.4.185.41 | 352631081 | 0 |
| 21.4.185.42 | 352631082 | 0 |
| 21.4.185.43 | 352631083 | 0 |
| 21.4.185.44 | 352631084 | 0 |
| 21.4.185.45 | 352631085 | 0 |
| 21.4.185.46 | 352631086 | 0 |
| 21.4.185.47 | 352631087 | 0 |
| 21.4.185.48 | 352631088 | 0 |
| 21.4.185.49 | 352631089 | 0 |
| 21.4.185.50 | 352631090 | 0 |
| 21.4.185.51 | 352631091 | 0 |
| 21.4.185.52 | 352631092 | 0 |
| 21.4.185.53 | 352631093 | 0 |
| 21.4.185.54 | 352631094 | 0 |
| 21.4.185.55 | 352631095 | 0 |
| 21.4.185.56 | 352631096 | 0 |
| 21.4.185.57 | 352631097 | 0 |
| 21.4.185.58 | 352631098 | 0 |
| 21.4.185.59 | 352631099 | 0 |
| 21.4.185.60 | 352631100 | 0 |
| 21.4.185.61 | 352631101 | 0 |
| 21.4.185.62 | 352631102 | 0 |
| 21.4.185.63 | 352631103 | 0 |
| 21.4.185.64 | 352631104 | 0 |
| 21.4.185.65 | 352631105 | 0 |
| 21.4.185.66 | 352631106 | 0 |
| 21.4.185.67 | 352631107 | 0 |
| 21.4.185.68 | 352631108 | 0 |
| 21.4.185.69 | 352631109 | 0 |
| 21.4.185.70 | 352631110 | 0 |
| 21.4.185.71 | 352631111 | 0 |
| 21.4.185.72 | 352631112 | 0 |
| 21.4.185.73 | 352631113 | 0 |
| 21.4.185.74 | 352631114 | 0 |
| 21.4.185.75 | 352631115 | 0 |
| 21.4.185.76 | 352631116 | 0 |
| 21.4.185.77 | 352631117 | 0 |
| 21.4.185.78 | 352631118 | 0 |
| 21.4.185.79 | 352631119 | 0 |
| 21.4.185.80 | 352631120 | 0 |
| 21.4.185.81 | 352631121 | 0 |
| 21.4.185.82 | 352631122 | 0 |
| 21.4.185.83 | 352631123 | 0 |
| 21.4.185.84 | 352631124 | 0 |
| 21.4.185.85 | 352631125 | 0 |