The IP address 21.78.30 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 | 27/07/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-07-27 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-07-27 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.78.30.0 | 357441024 | 0 |
| 21.78.30.1 | 357441025 | 0 |
| 21.78.30.2 | 357441026 | 0 |
| 21.78.30.3 | 357441027 | 0 |
| 21.78.30.4 | 357441028 | 0 |
| 21.78.30.5 | 357441029 | 0 |
| 21.78.30.6 | 357441030 | 0 |
| 21.78.30.7 | 357441031 | 0 |
| 21.78.30.8 | 357441032 | 0 |
| 21.78.30.9 | 357441033 | 0 |
| 21.78.30.10 | 357441034 | 0 |
| 21.78.30.11 | 357441035 | 0 |
| 21.78.30.12 | 357441036 | 0 |
| 21.78.30.13 | 357441037 | 0 |
| 21.78.30.14 | 357441038 | 0 |
| 21.78.30.15 | 357441039 | 0 |
| 21.78.30.16 | 357441040 | 0 |
| 21.78.30.17 | 357441041 | 0 |
| 21.78.30.18 | 357441042 | 0 |
| 21.78.30.19 | 357441043 | 0 |
| 21.78.30.20 | 357441044 | 0 |
| 21.78.30.21 | 357441045 | 0 |
| 21.78.30.22 | 357441046 | 0 |
| 21.78.30.23 | 357441047 | 0 |
| 21.78.30.24 | 357441048 | 0 |
| 21.78.30.25 | 357441049 | 0 |
| 21.78.30.26 | 357441050 | 0 |
| 21.78.30.27 | 357441051 | 0 |
| 21.78.30.28 | 357441052 | 0 |
| 21.78.30.29 | 357441053 | 0 |
| 21.78.30.30 | 357441054 | 0 |
| 21.78.30.31 | 357441055 | 0 |
| 21.78.30.32 | 357441056 | 0 |
| 21.78.30.33 | 357441057 | 0 |
| 21.78.30.34 | 357441058 | 0 |
| 21.78.30.35 | 357441059 | 0 |
| 21.78.30.36 | 357441060 | 0 |
| 21.78.30.37 | 357441061 | 0 |
| 21.78.30.38 | 357441062 | 0 |
| 21.78.30.39 | 357441063 | 0 |
| 21.78.30.40 | 357441064 | 0 |
| 21.78.30.41 | 357441065 | 0 |
| 21.78.30.42 | 357441066 | 0 |
| 21.78.30.43 | 357441067 | 0 |
| 21.78.30.44 | 357441068 | 0 |
| 21.78.30.45 | 357441069 | 0 |
| 21.78.30.46 | 357441070 | 0 |
| 21.78.30.47 | 357441071 | 0 |
| 21.78.30.48 | 357441072 | 0 |
| 21.78.30.49 | 357441073 | 0 |
| 21.78.30.50 | 357441074 | 0 |
| 21.78.30.51 | 357441075 | 0 |
| 21.78.30.52 | 357441076 | 0 |
| 21.78.30.53 | 357441077 | 0 |
| 21.78.30.54 | 357441078 | 0 |
| 21.78.30.55 | 357441079 | 0 |
| 21.78.30.56 | 357441080 | 0 |
| 21.78.30.57 | 357441081 | 0 |
| 21.78.30.58 | 357441082 | 0 |
| 21.78.30.59 | 357441083 | 0 |
| 21.78.30.60 | 357441084 | 0 |
| 21.78.30.61 | 357441085 | 0 |
| 21.78.30.62 | 357441086 | 0 |
| 21.78.30.63 | 357441087 | 0 |
| 21.78.30.64 | 357441088 | 0 |
| 21.78.30.65 | 357441089 | 0 |
| 21.78.30.66 | 357441090 | 0 |
| 21.78.30.67 | 357441091 | 0 |
| 21.78.30.68 | 357441092 | 0 |
| 21.78.30.69 | 357441093 | 0 |
| 21.78.30.70 | 357441094 | 0 |
| 21.78.30.71 | 357441095 | 0 |
| 21.78.30.72 | 357441096 | 0 |
| 21.78.30.73 | 357441097 | 0 |
| 21.78.30.74 | 357441098 | 0 |
| 21.78.30.75 | 357441099 | 0 |
| 21.78.30.76 | 357441100 | 0 |
| 21.78.30.77 | 357441101 | 0 |
| 21.78.30.78 | 357441102 | 0 |
| 21.78.30.79 | 357441103 | 0 |
| 21.78.30.80 | 357441104 | 0 |
| 21.78.30.81 | 357441105 | 0 |
| 21.78.30.82 | 357441106 | 0 |
| 21.78.30.83 | 357441107 | 0 |
| 21.78.30.84 | 357441108 | 0 |
| 21.78.30.85 | 357441109 | 0 |