La dirección IP 21.78.42 es proporcionada por China Education and Research Network Center, que es propiedad de la CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP entre 22.30.204.0 a 22.30.205.255 ). El número de sistema autónomo (ASN) es 4538.
| ASN | 4538 |
| IP que comienzan con | 22.30.204.0 |
| IP que termina con | 22.30.205.255 |
| ASN Nombre | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérica | |
| Registe | |
| Última actualización | 17/07/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2017-07-17 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2017-07-17 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.78.42.0 | 357444096 | 0 |
| 21.78.42.1 | 357444097 | 0 |
| 21.78.42.2 | 357444098 | 0 |
| 21.78.42.3 | 357444099 | 0 |
| 21.78.42.4 | 357444100 | 0 |
| 21.78.42.5 | 357444101 | 0 |
| 21.78.42.6 | 357444102 | 0 |
| 21.78.42.7 | 357444103 | 0 |
| 21.78.42.8 | 357444104 | 0 |
| 21.78.42.9 | 357444105 | 0 |
| 21.78.42.10 | 357444106 | 0 |
| 21.78.42.11 | 357444107 | 0 |
| 21.78.42.12 | 357444108 | 0 |
| 21.78.42.13 | 357444109 | 0 |
| 21.78.42.14 | 357444110 | 0 |
| 21.78.42.15 | 357444111 | 0 |
| 21.78.42.16 | 357444112 | 0 |
| 21.78.42.17 | 357444113 | 0 |
| 21.78.42.18 | 357444114 | 0 |
| 21.78.42.19 | 357444115 | 0 |
| 21.78.42.20 | 357444116 | 0 |
| 21.78.42.21 | 357444117 | 0 |
| 21.78.42.22 | 357444118 | 0 |
| 21.78.42.23 | 357444119 | 0 |
| 21.78.42.24 | 357444120 | 0 |
| 21.78.42.25 | 357444121 | 0 |
| 21.78.42.26 | 357444122 | 0 |
| 21.78.42.27 | 357444123 | 0 |
| 21.78.42.28 | 357444124 | 0 |
| 21.78.42.29 | 357444125 | 0 |
| 21.78.42.30 | 357444126 | 0 |
| 21.78.42.31 | 357444127 | 0 |
| 21.78.42.32 | 357444128 | 0 |
| 21.78.42.33 | 357444129 | 0 |
| 21.78.42.34 | 357444130 | 0 |
| 21.78.42.35 | 357444131 | 0 |
| 21.78.42.36 | 357444132 | 0 |
| 21.78.42.37 | 357444133 | 0 |
| 21.78.42.38 | 357444134 | 0 |
| 21.78.42.39 | 357444135 | 0 |
| 21.78.42.40 | 357444136 | 0 |
| 21.78.42.41 | 357444137 | 0 |
| 21.78.42.42 | 357444138 | 0 |
| 21.78.42.43 | 357444139 | 0 |
| 21.78.42.44 | 357444140 | 0 |
| 21.78.42.45 | 357444141 | 0 |
| 21.78.42.46 | 357444142 | 0 |
| 21.78.42.47 | 357444143 | 0 |
| 21.78.42.48 | 357444144 | 0 |
| 21.78.42.49 | 357444145 | 0 |
| 21.78.42.50 | 357444146 | 0 |
| 21.78.42.51 | 357444147 | 0 |
| 21.78.42.52 | 357444148 | 0 |
| 21.78.42.53 | 357444149 | 0 |
| 21.78.42.54 | 357444150 | 0 |
| 21.78.42.55 | 357444151 | 0 |
| 21.78.42.56 | 357444152 | 0 |
| 21.78.42.57 | 357444153 | 0 |
| 21.78.42.58 | 357444154 | 0 |
| 21.78.42.59 | 357444155 | 0 |
| 21.78.42.60 | 357444156 | 0 |
| 21.78.42.61 | 357444157 | 0 |
| 21.78.42.62 | 357444158 | 0 |
| 21.78.42.63 | 357444159 | 0 |
| 21.78.42.64 | 357444160 | 0 |
| 21.78.42.65 | 357444161 | 0 |
| 21.78.42.66 | 357444162 | 0 |
| 21.78.42.67 | 357444163 | 0 |
| 21.78.42.68 | 357444164 | 0 |
| 21.78.42.69 | 357444165 | 0 |
| 21.78.42.70 | 357444166 | 0 |
| 21.78.42.71 | 357444167 | 0 |
| 21.78.42.72 | 357444168 | 0 |
| 21.78.42.73 | 357444169 | 0 |
| 21.78.42.74 | 357444170 | 0 |
| 21.78.42.75 | 357444171 | 0 |
| 21.78.42.76 | 357444172 | 0 |
| 21.78.42.77 | 357444173 | 0 |
| 21.78.42.78 | 357444174 | 0 |
| 21.78.42.79 | 357444175 | 0 |
| 21.78.42.80 | 357444176 | 0 |
| 21.78.42.81 | 357444177 | 0 |
| 21.78.42.82 | 357444178 | 0 |
| 21.78.42.83 | 357444179 | 0 |
| 21.78.42.84 | 357444180 | 0 |
| 21.78.42.85 | 357444181 | 0 |