La dirección IP 81.136.81 es proporcionada por BTnet UK Regional network, que es propiedad de la CIDR (Classless Inter-Domain Routing) 81.128.0.0/11, IP entre 81.128.0.0 a 81.159.255.255 ). El número de sistema autónomo (ASN) es 2856.
| ASN | 2856 |
| IP que comienzan con | 81.128.0.0 |
| IP que termina con | 81.159.255.255 |
| ASN Nombre | BTnet UK Regional network |
| CDIR | 81.128.0.0/11 |
| IP numérica | |
| Registe | ripencc |
| Última actualización | 03/08/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | GB | Reino Unido | - | North Hykeham | 53,1831 | -0,5877 | 2017-08-03 |
| MaxMind | GB | Reino Unido | - | Lincoln | 53,3 | -0,7333 | 2017-08-03 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.136.81.0 | 1367888128 | 0 |
| 81.136.81.1 | 1367888129 | 0 |
| 81.136.81.2 | 1367888130 | 0 |
| 81.136.81.3 | 1367888131 | 0 |
| 81.136.81.4 | 1367888132 | 0 |
| 81.136.81.5 | 1367888133 | 0 |
| 81.136.81.6 | 1367888134 | 0 |
| 81.136.81.7 | 1367888135 | 0 |
| 81.136.81.8 | 1367888136 | 0 |
| 81.136.81.9 | 1367888137 | 0 |
| 81.136.81.10 | 1367888138 | 0 |
| 81.136.81.11 | 1367888139 | 0 |
| 81.136.81.12 | 1367888140 | 0 |
| 81.136.81.13 | 1367888141 | 0 |
| 81.136.81.14 | 1367888142 | 0 |
| 81.136.81.15 | 1367888143 | 0 |
| 81.136.81.16 | 1367888144 | 0 |
| 81.136.81.17 | 1367888145 | 0 |
| 81.136.81.18 | 1367888146 | 0 |
| 81.136.81.19 | 1367888147 | 0 |
| 81.136.81.20 | 1367888148 | 0 |
| 81.136.81.21 | 1367888149 | 0 |
| 81.136.81.22 | 1367888150 | 0 |
| 81.136.81.23 | 1367888151 | 0 |
| 81.136.81.24 | 1367888152 | 0 |
| 81.136.81.25 | 1367888153 | 0 |
| 81.136.81.26 | 1367888154 | 0 |
| 81.136.81.27 | 1367888155 | 0 |
| 81.136.81.28 | 1367888156 | 0 |
| 81.136.81.29 | 1367888157 | 0 |
| 81.136.81.30 | 1367888158 | 0 |
| 81.136.81.31 | 1367888159 | 0 |
| 81.136.81.32 | 1367888160 | 0 |
| 81.136.81.33 | 1367888161 | 0 |
| 81.136.81.34 | 1367888162 | 0 |
| 81.136.81.35 | 1367888163 | 0 |
| 81.136.81.36 | 1367888164 | 0 |
| 81.136.81.37 | 1367888165 | 0 |
| 81.136.81.38 | 1367888166 | 0 |
| 81.136.81.39 | 1367888167 | 0 |
| 81.136.81.40 | 1367888168 | 0 |
| 81.136.81.41 | 1367888169 | 0 |
| 81.136.81.42 | 1367888170 | 0 |
| 81.136.81.43 | 1367888171 | 0 |
| 81.136.81.44 | 1367888172 | 0 |
| 81.136.81.45 | 1367888173 | 0 |
| 81.136.81.46 | 1367888174 | 0 |
| 81.136.81.47 | 1367888175 | 0 |
| 81.136.81.48 | 1367888176 | 0 |
| 81.136.81.49 | 1367888177 | 0 |
| 81.136.81.50 | 1367888178 | 0 |
| 81.136.81.51 | 1367888179 | 0 |
| 81.136.81.52 | 1367888180 | 0 |
| 81.136.81.53 | 1367888181 | 0 |
| 81.136.81.54 | 1367888182 | 0 |
| 81.136.81.55 | 1367888183 | 0 |
| 81.136.81.56 | 1367888184 | 0 |
| 81.136.81.57 | 1367888185 | 0 |
| 81.136.81.58 | 1367888186 | 0 |
| 81.136.81.59 | 1367888187 | 0 |
| 81.136.81.60 | 1367888188 | 0 |
| 81.136.81.61 | 1367888189 | 0 |
| 81.136.81.62 | 1367888190 | 0 |
| 81.136.81.63 | 1367888191 | 0 |
| 81.136.81.64 | 1367888192 | 0 |
| 81.136.81.65 | 1367888193 | 0 |
| 81.136.81.66 | 1367888194 | 0 |
| 81.136.81.67 | 1367888195 | 0 |
| 81.136.81.68 | 1367888196 | 0 |
| 81.136.81.69 | 1367888197 | 0 |
| 81.136.81.70 | 1367888198 | 0 |
| 81.136.81.71 | 1367888199 | 0 |
| 81.136.81.72 | 1367888200 | 0 |
| 81.136.81.73 | 1367888201 | 0 |
| 81.136.81.74 | 1367888202 | 0 |
| 81.136.81.75 | 1367888203 | 0 |
| 81.136.81.76 | 1367888204 | 0 |
| 81.136.81.77 | 1367888205 | 0 |
| 81.136.81.78 | 1367888206 | 0 |
| 81.136.81.79 | 1367888207 | 0 |
| 81.136.81.80 | 1367888208 | 0 |
| 81.136.81.81 | 1367888209 | 0 |
| 81.136.81.82 | 1367888210 | 0 |
| 81.136.81.83 | 1367888211 | 0 |
| 81.136.81.84 | 1367888212 | 0 |
| 81.136.81.85 | 1367888213 | 0 |