La dirección IP 137.81.20 es proporcionada por University of Wisconsin System, que es propiedad de la CIDR (Classless Inter-Domain Routing) 137.81.0.0/16, IP entre 137.81.0.0 a 137.81.255.255 ). El número de sistema autónomo (ASN) es 3128.
| ASN | 3128 |
| IP que comienzan con | 137.81.0.0 |
| IP que termina con | 137.81.255.255 |
| ASN Nombre | University of Wisconsin System |
| CDIR | 137.81.0.0/16 |
| IP numérica | |
| Registe | arin |
| Última actualización | 06/04/2020 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Milwaukee | 43,0389 | -87,9065 | 2020-04-06 |
| MaxMind | CA | Canadá | - | Vancouver | 49,4635 | -122,822 | 2020-04-06 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 137.81.20.0 | 2303792128 | 0 |
| 137.81.20.1 | 2303792129 | 0 |
| 137.81.20.2 | 2303792130 | 0 |
| 137.81.20.3 | 2303792131 | 0 |
| 137.81.20.4 | 2303792132 | 0 |
| 137.81.20.5 | 2303792133 | 0 |
| 137.81.20.6 | 2303792134 | 0 |
| 137.81.20.7 | 2303792135 | 0 |
| 137.81.20.8 | 2303792136 | 0 |
| 137.81.20.9 | 2303792137 | 0 |
| 137.81.20.10 | 2303792138 | 0 |
| 137.81.20.11 | 2303792139 | 0 |
| 137.81.20.12 | 2303792140 | 0 |
| 137.81.20.13 | 2303792141 | 0 |
| 137.81.20.14 | 2303792142 | 0 |
| 137.81.20.15 | 2303792143 | 0 |
| 137.81.20.16 | 2303792144 | 0 |
| 137.81.20.17 | 2303792145 | 0 |
| 137.81.20.18 | 2303792146 | 0 |
| 137.81.20.19 | 2303792147 | 0 |
| 137.81.20.20 | 2303792148 | 0 |
| 137.81.20.21 | 2303792149 | 0 |
| 137.81.20.22 | 2303792150 | 0 |
| 137.81.20.23 | 2303792151 | 0 |
| 137.81.20.24 | 2303792152 | 0 |
| 137.81.20.25 | 2303792153 | 0 |
| 137.81.20.26 | 2303792154 | 0 |
| 137.81.20.27 | 2303792155 | 0 |
| 137.81.20.28 | 2303792156 | 0 |
| 137.81.20.29 | 2303792157 | 0 |
| 137.81.20.30 | 2303792158 | 0 |
| 137.81.20.31 | 2303792159 | 0 |
| 137.81.20.32 | 2303792160 | 0 |
| 137.81.20.33 | 2303792161 | 0 |
| 137.81.20.34 | 2303792162 | 0 |
| 137.81.20.35 | 2303792163 | 0 |
| 137.81.20.36 | 2303792164 | 0 |
| 137.81.20.37 | 2303792165 | 0 |
| 137.81.20.38 | 2303792166 | 0 |
| 137.81.20.39 | 2303792167 | 0 |
| 137.81.20.40 | 2303792168 | 0 |
| 137.81.20.41 | 2303792169 | 0 |
| 137.81.20.42 | 2303792170 | 0 |
| 137.81.20.43 | 2303792171 | 0 |
| 137.81.20.44 | 2303792172 | 0 |
| 137.81.20.45 | 2303792173 | 0 |
| 137.81.20.46 | 2303792174 | 0 |
| 137.81.20.47 | 2303792175 | 0 |
| 137.81.20.48 | 2303792176 | 0 |
| 137.81.20.49 | 2303792177 | 0 |
| 137.81.20.50 | 2303792178 | 0 |
| 137.81.20.51 | 2303792179 | 0 |
| 137.81.20.52 | 2303792180 | 0 |
| 137.81.20.53 | 2303792181 | 0 |
| 137.81.20.54 | 2303792182 | 0 |
| 137.81.20.55 | 2303792183 | 0 |
| 137.81.20.56 | 2303792184 | 0 |
| 137.81.20.57 | 2303792185 | 0 |
| 137.81.20.58 | 2303792186 | 0 |
| 137.81.20.59 | 2303792187 | 0 |
| 137.81.20.60 | 2303792188 | 0 |
| 137.81.20.61 | 2303792189 | 0 |
| 137.81.20.62 | 2303792190 | 0 |
| 137.81.20.63 | 2303792191 | 0 |
| 137.81.20.64 | 2303792192 | 0 |
| 137.81.20.65 | 2303792193 | 0 |
| 137.81.20.66 | 2303792194 | 0 |
| 137.81.20.67 | 2303792195 | 0 |
| 137.81.20.68 | 2303792196 | 0 |
| 137.81.20.69 | 2303792197 | 0 |
| 137.81.20.70 | 2303792198 | 0 |
| 137.81.20.71 | 2303792199 | 0 |
| 137.81.20.72 | 2303792200 | 0 |
| 137.81.20.73 | 2303792201 | 0 |
| 137.81.20.74 | 2303792202 | 0 |
| 137.81.20.75 | 2303792203 | 0 |
| 137.81.20.76 | 2303792204 | 0 |
| 137.81.20.77 | 2303792205 | 0 |
| 137.81.20.78 | 2303792206 | 0 |
| 137.81.20.79 | 2303792207 | 0 |
| 137.81.20.80 | 2303792208 | 0 |
| 137.81.20.81 | 2303792209 | 0 |
| 137.81.20.82 | 2303792210 | 0 |
| 137.81.20.83 | 2303792211 | 0 |
| 137.81.20.84 | 2303792212 | 0 |
| 137.81.20.85 | 2303792213 | 0 |