Les adresses IP débutant par 21.85.78 sont fournies par China Education and Research Network Center, elles appartiennent au CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, le bloc IP comprant les adresses de 22.30.204.0 à 22.30.205.255). Le numéro de système autonome (ASN) est 4538.
| ASN | 4538 |
| IP commençant par | 22.30.204.0 |
| IP se terminant par | 22.30.205.255 |
| Nom ASN | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérique | |
| Registe | |
| Dernière mise à jour | 27/10/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Columbus | 39,9664 | -83,0128 | 2017-10-27 |
| MaxMind | US | États-Unis | - | - | 37,751 | -97,822 | 2017-10-27 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.85.78.0 | 357912064 | 0 |
| 21.85.78.1 | 357912065 | 0 |
| 21.85.78.2 | 357912066 | 0 |
| 21.85.78.3 | 357912067 | 0 |
| 21.85.78.4 | 357912068 | 0 |
| 21.85.78.5 | 357912069 | 0 |
| 21.85.78.6 | 357912070 | 0 |
| 21.85.78.7 | 357912071 | 0 |
| 21.85.78.8 | 357912072 | 0 |
| 21.85.78.9 | 357912073 | 0 |
| 21.85.78.10 | 357912074 | 0 |
| 21.85.78.11 | 357912075 | 0 |
| 21.85.78.12 | 357912076 | 0 |
| 21.85.78.13 | 357912077 | 0 |
| 21.85.78.14 | 357912078 | 0 |
| 21.85.78.15 | 357912079 | 0 |
| 21.85.78.16 | 357912080 | 0 |
| 21.85.78.17 | 357912081 | 0 |
| 21.85.78.18 | 357912082 | 0 |
| 21.85.78.19 | 357912083 | 0 |
| 21.85.78.20 | 357912084 | 0 |
| 21.85.78.21 | 357912085 | 0 |
| 21.85.78.22 | 357912086 | 0 |
| 21.85.78.23 | 357912087 | 0 |
| 21.85.78.24 | 357912088 | 0 |
| 21.85.78.25 | 357912089 | 0 |
| 21.85.78.26 | 357912090 | 0 |
| 21.85.78.27 | 357912091 | 0 |
| 21.85.78.28 | 357912092 | 0 |
| 21.85.78.29 | 357912093 | 0 |
| 21.85.78.30 | 357912094 | 0 |
| 21.85.78.31 | 357912095 | 0 |
| 21.85.78.32 | 357912096 | 0 |
| 21.85.78.33 | 357912097 | 0 |
| 21.85.78.34 | 357912098 | 0 |
| 21.85.78.35 | 357912099 | 0 |
| 21.85.78.36 | 357912100 | 0 |
| 21.85.78.37 | 357912101 | 0 |
| 21.85.78.38 | 357912102 | 0 |
| 21.85.78.39 | 357912103 | 0 |
| 21.85.78.40 | 357912104 | 0 |
| 21.85.78.41 | 357912105 | 0 |
| 21.85.78.42 | 357912106 | 0 |
| 21.85.78.43 | 357912107 | 0 |
| 21.85.78.44 | 357912108 | 0 |
| 21.85.78.45 | 357912109 | 0 |
| 21.85.78.46 | 357912110 | 0 |
| 21.85.78.47 | 357912111 | 0 |
| 21.85.78.48 | 357912112 | 0 |
| 21.85.78.49 | 357912113 | 0 |
| 21.85.78.50 | 357912114 | 0 |
| 21.85.78.51 | 357912115 | 0 |
| 21.85.78.52 | 357912116 | 0 |
| 21.85.78.53 | 357912117 | 0 |
| 21.85.78.54 | 357912118 | 0 |
| 21.85.78.55 | 357912119 | 0 |
| 21.85.78.56 | 357912120 | 0 |
| 21.85.78.57 | 357912121 | 0 |
| 21.85.78.58 | 357912122 | 0 |
| 21.85.78.59 | 357912123 | 0 |
| 21.85.78.60 | 357912124 | 0 |
| 21.85.78.61 | 357912125 | 0 |
| 21.85.78.62 | 357912126 | 0 |
| 21.85.78.63 | 357912127 | 0 |
| 21.85.78.64 | 357912128 | 0 |
| 21.85.78.65 | 357912129 | 0 |
| 21.85.78.66 | 357912130 | 0 |
| 21.85.78.67 | 357912131 | 0 |
| 21.85.78.68 | 357912132 | 0 |
| 21.85.78.69 | 357912133 | 0 |
| 21.85.78.70 | 357912134 | 0 |
| 21.85.78.71 | 357912135 | 0 |
| 21.85.78.72 | 357912136 | 0 |
| 21.85.78.73 | 357912137 | 0 |
| 21.85.78.74 | 357912138 | 0 |
| 21.85.78.75 | 357912139 | 0 |
| 21.85.78.76 | 357912140 | 0 |
| 21.85.78.77 | 357912141 | 0 |
| 21.85.78.78 | 357912142 | 0 |
| 21.85.78.79 | 357912143 | 0 |
| 21.85.78.80 | 357912144 | 0 |
| 21.85.78.81 | 357912145 | 0 |
| 21.85.78.82 | 357912146 | 0 |
| 21.85.78.83 | 357912147 | 0 |
| 21.85.78.84 | 357912148 | 0 |
| 21.85.78.85 | 357912149 | 0 |