Les adresses IP débutant par 81.131.56 sont fournies par BTnet UK Regional network, elles appartiennent au CIDR (Classless Inter-Domain Routing) 81.128.0.0/11, le bloc IP comprant les adresses de 81.128.0.0 à 81.159.255.255). Le numéro de système autonome (ASN) est 2856.
| ASN | 2856 |
| IP commençant par | 81.128.0.0 |
| IP se terminant par | 81.159.255.255 |
| Nom ASN | BTnet UK Regional network |
| CDIR | 81.128.0.0/11 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 03/08/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Edinburgh | 55,9521 | -3,1965 | 2017-08-02 |
| MaxMind | GB | Royaume-Uni | - | - | 51,4964 | -0,1224 | 2017-08-02 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.131.56.0 | 1367554048 | 0 |
| 81.131.56.1 | 1367554049 | 0 |
| 81.131.56.2 | 1367554050 | 0 |
| 81.131.56.3 | 1367554051 | 0 |
| 81.131.56.4 | 1367554052 | 0 |
| 81.131.56.5 | 1367554053 | 0 |
| 81.131.56.6 | 1367554054 | 0 |
| 81.131.56.7 | 1367554055 | 0 |
| 81.131.56.8 | 1367554056 | 0 |
| 81.131.56.9 | 1367554057 | 0 |
| 81.131.56.10 | 1367554058 | 0 |
| 81.131.56.11 | 1367554059 | 0 |
| 81.131.56.12 | 1367554060 | 0 |
| 81.131.56.13 | 1367554061 | 0 |
| 81.131.56.14 | 1367554062 | 0 |
| 81.131.56.15 | 1367554063 | 0 |
| 81.131.56.16 | 1367554064 | 0 |
| 81.131.56.17 | 1367554065 | 0 |
| 81.131.56.18 | 1367554066 | 0 |
| 81.131.56.19 | 1367554067 | 0 |
| 81.131.56.20 | 1367554068 | 0 |
| 81.131.56.21 | 1367554069 | 0 |
| 81.131.56.22 | 1367554070 | 0 |
| 81.131.56.23 | 1367554071 | 0 |
| 81.131.56.24 | 1367554072 | 0 |
| 81.131.56.25 | 1367554073 | 0 |
| 81.131.56.26 | 1367554074 | 0 |
| 81.131.56.27 | 1367554075 | 0 |
| 81.131.56.28 | 1367554076 | 0 |
| 81.131.56.29 | 1367554077 | 0 |
| 81.131.56.30 | 1367554078 | 0 |
| 81.131.56.31 | 1367554079 | 0 |
| 81.131.56.32 | 1367554080 | 0 |
| 81.131.56.33 | 1367554081 | 0 |
| 81.131.56.34 | 1367554082 | 0 |
| 81.131.56.35 | 1367554083 | 0 |
| 81.131.56.36 | 1367554084 | 0 |
| 81.131.56.37 | 1367554085 | 0 |
| 81.131.56.38 | 1367554086 | 0 |
| 81.131.56.39 | 1367554087 | 0 |
| 81.131.56.40 | 1367554088 | 0 |
| 81.131.56.41 | 1367554089 | 0 |
| 81.131.56.42 | 1367554090 | 0 |
| 81.131.56.43 | 1367554091 | 0 |
| 81.131.56.44 | 1367554092 | 0 |
| 81.131.56.45 | 1367554093 | 0 |
| 81.131.56.46 | 1367554094 | 0 |
| 81.131.56.47 | 1367554095 | 0 |
| 81.131.56.48 | 1367554096 | 0 |
| 81.131.56.49 | 1367554097 | 0 |
| 81.131.56.50 | 1367554098 | 0 |
| 81.131.56.51 | 1367554099 | 0 |
| 81.131.56.52 | 1367554100 | 0 |
| 81.131.56.53 | 1367554101 | 0 |
| 81.131.56.54 | 1367554102 | 0 |
| 81.131.56.55 | 1367554103 | 0 |
| 81.131.56.56 | 1367554104 | 0 |
| 81.131.56.57 | 1367554105 | 0 |
| 81.131.56.58 | 1367554106 | 0 |
| 81.131.56.59 | 1367554107 | 0 |
| 81.131.56.60 | 1367554108 | 0 |
| 81.131.56.61 | 1367554109 | 0 |
| 81.131.56.62 | 1367554110 | 0 |
| 81.131.56.63 | 1367554111 | 0 |
| 81.131.56.64 | 1367554112 | 0 |
| 81.131.56.65 | 1367554113 | 0 |
| 81.131.56.66 | 1367554114 | 0 |
| 81.131.56.67 | 1367554115 | 0 |
| 81.131.56.68 | 1367554116 | 0 |
| 81.131.56.69 | 1367554117 | 0 |
| 81.131.56.70 | 1367554118 | 0 |
| 81.131.56.71 | 1367554119 | 0 |
| 81.131.56.72 | 1367554120 | 0 |
| 81.131.56.73 | 1367554121 | 0 |
| 81.131.56.74 | 1367554122 | 0 |
| 81.131.56.75 | 1367554123 | 0 |
| 81.131.56.76 | 1367554124 | 0 |
| 81.131.56.77 | 1367554125 | 0 |
| 81.131.56.78 | 1367554126 | 0 |
| 81.131.56.79 | 1367554127 | 0 |
| 81.131.56.80 | 1367554128 | 0 |
| 81.131.56.81 | 1367554129 | 0 |
| 81.131.56.82 | 1367554130 | 0 |
| 81.131.56.83 | 1367554131 | 0 |
| 81.131.56.84 | 1367554132 | 0 |
| 81.131.56.85 | 1367554133 | 0 |