Les adresses IP débutant par 81.76.143 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 | 04/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Leeds | 51,2468 | 0,6068 | 2017-07-04 |
| MaxMind | GB | Royaume-Uni | - | - | 51,4964 | -0,1224 | 2017-07-04 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.76.143.0 | 1363971840 | 0 |
| 81.76.143.1 | 1363971841 | 0 |
| 81.76.143.2 | 1363971842 | 0 |
| 81.76.143.3 | 1363971843 | 0 |
| 81.76.143.4 | 1363971844 | 0 |
| 81.76.143.5 | 1363971845 | 0 |
| 81.76.143.6 | 1363971846 | 0 |
| 81.76.143.7 | 1363971847 | 0 |
| 81.76.143.8 | 1363971848 | 0 |
| 81.76.143.9 | 1363971849 | 0 |
| 81.76.143.10 | 1363971850 | 0 |
| 81.76.143.11 | 1363971851 | 0 |
| 81.76.143.12 | 1363971852 | 0 |
| 81.76.143.13 | 1363971853 | 0 |
| 81.76.143.14 | 1363971854 | 0 |
| 81.76.143.15 | 1363971855 | 0 |
| 81.76.143.16 | 1363971856 | 0 |
| 81.76.143.17 | 1363971857 | 0 |
| 81.76.143.18 | 1363971858 | 0 |
| 81.76.143.19 | 1363971859 | 0 |
| 81.76.143.20 | 1363971860 | 0 |
| 81.76.143.21 | 1363971861 | 0 |
| 81.76.143.22 | 1363971862 | 0 |
| 81.76.143.23 | 1363971863 | 0 |
| 81.76.143.24 | 1363971864 | 0 |
| 81.76.143.25 | 1363971865 | 0 |
| 81.76.143.26 | 1363971866 | 0 |
| 81.76.143.27 | 1363971867 | 0 |
| 81.76.143.28 | 1363971868 | 0 |
| 81.76.143.29 | 1363971869 | 0 |
| 81.76.143.30 | 1363971870 | 0 |
| 81.76.143.31 | 1363971871 | 0 |
| 81.76.143.32 | 1363971872 | 0 |
| 81.76.143.33 | 1363971873 | 0 |
| 81.76.143.34 | 1363971874 | 0 |
| 81.76.143.35 | 1363971875 | 0 |
| 81.76.143.36 | 1363971876 | 0 |
| 81.76.143.37 | 1363971877 | 0 |
| 81.76.143.38 | 1363971878 | 0 |
| 81.76.143.39 | 1363971879 | 0 |
| 81.76.143.40 | 1363971880 | 0 |
| 81.76.143.41 | 1363971881 | 0 |
| 81.76.143.42 | 1363971882 | 0 |
| 81.76.143.43 | 1363971883 | 0 |
| 81.76.143.44 | 1363971884 | 0 |
| 81.76.143.45 | 1363971885 | 0 |
| 81.76.143.46 | 1363971886 | 0 |
| 81.76.143.47 | 1363971887 | 0 |
| 81.76.143.48 | 1363971888 | 0 |
| 81.76.143.49 | 1363971889 | 0 |
| 81.76.143.50 | 1363971890 | 0 |
| 81.76.143.51 | 1363971891 | 0 |
| 81.76.143.52 | 1363971892 | 0 |
| 81.76.143.53 | 1363971893 | 0 |
| 81.76.143.54 | 1363971894 | 0 |
| 81.76.143.55 | 1363971895 | 0 |
| 81.76.143.56 | 1363971896 | 0 |
| 81.76.143.57 | 1363971897 | 0 |
| 81.76.143.58 | 1363971898 | 0 |
| 81.76.143.59 | 1363971899 | 0 |
| 81.76.143.60 | 1363971900 | 0 |
| 81.76.143.61 | 1363971901 | 0 |
| 81.76.143.62 | 1363971902 | 0 |
| 81.76.143.63 | 1363971903 | 0 |
| 81.76.143.64 | 1363971904 | 0 |
| 81.76.143.65 | 1363971905 | 0 |
| 81.76.143.66 | 1363971906 | 0 |
| 81.76.143.67 | 1363971907 | 0 |
| 81.76.143.68 | 1363971908 | 0 |
| 81.76.143.69 | 1363971909 | 0 |
| 81.76.143.70 | 1363971910 | 0 |
| 81.76.143.71 | 1363971911 | 0 |
| 81.76.143.72 | 1363971912 | 0 |
| 81.76.143.73 | 1363971913 | 0 |
| 81.76.143.74 | 1363971914 | 0 |
| 81.76.143.75 | 1363971915 | 0 |
| 81.76.143.76 | 1363971916 | 0 |
| 81.76.143.77 | 1363971917 | 0 |
| 81.76.143.78 | 1363971918 | 0 |
| 81.76.143.79 | 1363971919 | 0 |
| 81.76.143.80 | 1363971920 | 0 |
| 81.76.143.81 | 1363971921 | 0 |
| 81.76.143.82 | 1363971922 | 0 |
| 81.76.143.83 | 1363971923 | 0 |
| 81.76.143.84 | 1363971924 | 0 |
| 81.76.143.85 | 1363971925 | 0 |