Les adresses IP débutant par 81.78.166 sont fournies par UK Backbone Network, elles appartiennent au CIDR (Classless Inter-Domain Routing) 81.76.0.0/14, le bloc IP comprant les adresses de 81.76.0.0 à 81.79.255.255). Le numéro de système autonome (ASN) est 5388.
| ASN | 5388 |
| IP commençant par | 81.76.0.0 |
| IP se terminant par | 81.79.255.255 |
| Nom ASN | UK Backbone Network |
| CDIR | 81.76.0.0/14 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 24/07/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Wythall | 52,3752 | -1,8757 | 2018-07-24 |
| MaxMind | FR | France | - | - | 48,8582 | 2,3387 | 2018-07-24 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.78.166.0 | 1364108800 | 0 |
| 81.78.166.1 | 1364108801 | 0 |
| 81.78.166.2 | 1364108802 | 0 |
| 81.78.166.3 | 1364108803 | 0 |
| 81.78.166.4 | 1364108804 | 0 |
| 81.78.166.5 | 1364108805 | 0 |
| 81.78.166.6 | 1364108806 | 0 |
| 81.78.166.7 | 1364108807 | 0 |
| 81.78.166.8 | 1364108808 | 0 |
| 81.78.166.9 | 1364108809 | 0 |
| 81.78.166.10 | 1364108810 | 0 |
| 81.78.166.11 | 1364108811 | 0 |
| 81.78.166.12 | 1364108812 | 0 |
| 81.78.166.13 | 1364108813 | 0 |
| 81.78.166.14 | 1364108814 | 0 |
| 81.78.166.15 | 1364108815 | 0 |
| 81.78.166.16 | 1364108816 | 0 |
| 81.78.166.17 | 1364108817 | 0 |
| 81.78.166.18 | 1364108818 | 0 |
| 81.78.166.19 | 1364108819 | 0 |
| 81.78.166.20 | 1364108820 | 0 |
| 81.78.166.21 | 1364108821 | 0 |
| 81.78.166.22 | 1364108822 | 0 |
| 81.78.166.23 | 1364108823 | 0 |
| 81.78.166.24 | 1364108824 | 0 |
| 81.78.166.25 | 1364108825 | 0 |
| 81.78.166.26 | 1364108826 | 0 |
| 81.78.166.27 | 1364108827 | 0 |
| 81.78.166.28 | 1364108828 | 0 |
| 81.78.166.29 | 1364108829 | 0 |
| 81.78.166.30 | 1364108830 | 0 |
| 81.78.166.31 | 1364108831 | 0 |
| 81.78.166.32 | 1364108832 | 0 |
| 81.78.166.33 | 1364108833 | 0 |
| 81.78.166.34 | 1364108834 | 0 |
| 81.78.166.35 | 1364108835 | 0 |
| 81.78.166.36 | 1364108836 | 0 |
| 81.78.166.37 | 1364108837 | 0 |
| 81.78.166.38 | 1364108838 | 0 |
| 81.78.166.39 | 1364108839 | 0 |
| 81.78.166.40 | 1364108840 | 0 |
| 81.78.166.41 | 1364108841 | 0 |
| 81.78.166.42 | 1364108842 | 0 |
| 81.78.166.43 | 1364108843 | 0 |
| 81.78.166.44 | 1364108844 | 0 |
| 81.78.166.45 | 1364108845 | 0 |
| 81.78.166.46 | 1364108846 | 0 |
| 81.78.166.47 | 1364108847 | 0 |
| 81.78.166.48 | 1364108848 | 0 |
| 81.78.166.49 | 1364108849 | 0 |
| 81.78.166.50 | 1364108850 | 0 |
| 81.78.166.51 | 1364108851 | 0 |
| 81.78.166.52 | 1364108852 | 0 |
| 81.78.166.53 | 1364108853 | 0 |
| 81.78.166.54 | 1364108854 | 0 |
| 81.78.166.55 | 1364108855 | 0 |
| 81.78.166.56 | 1364108856 | 0 |
| 81.78.166.57 | 1364108857 | 0 |
| 81.78.166.58 | 1364108858 | 0 |
| 81.78.166.59 | 1364108859 | 0 |
| 81.78.166.60 | 1364108860 | 0 |
| 81.78.166.61 | 1364108861 | 0 |
| 81.78.166.62 | 1364108862 | 0 |
| 81.78.166.63 | 1364108863 | 0 |
| 81.78.166.64 | 1364108864 | 0 |
| 81.78.166.65 | 1364108865 | 0 |
| 81.78.166.66 | 1364108866 | 0 |
| 81.78.166.67 | 1364108867 | 0 |
| 81.78.166.68 | 1364108868 | 0 |
| 81.78.166.69 | 1364108869 | 0 |
| 81.78.166.70 | 1364108870 | 0 |
| 81.78.166.71 | 1364108871 | 0 |
| 81.78.166.72 | 1364108872 | 0 |
| 81.78.166.73 | 1364108873 | 0 |
| 81.78.166.74 | 1364108874 | 0 |
| 81.78.166.75 | 1364108875 | 0 |
| 81.78.166.76 | 1364108876 | 0 |
| 81.78.166.77 | 1364108877 | 0 |
| 81.78.166.78 | 1364108878 | 0 |
| 81.78.166.79 | 1364108879 | 0 |
| 81.78.166.80 | 1364108880 | 0 |
| 81.78.166.81 | 1364108881 | 0 |
| 81.78.166.82 | 1364108882 | 0 |
| 81.78.166.83 | 1364108883 | 0 |
| 81.78.166.84 | 1364108884 | 0 |
| 81.78.166.85 | 1364108885 | 0 |