Les adresses IP débutant par 81.149.64 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 | 23/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Ystradowen | 51,4906 | -3,4219 | 2017-07-23 |
| MaxMind | GB | Royaume-Uni | - | Witney | 51,7833 | -1,4833 | 2017-07-23 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.149.64.0 | 1368735744 | 0 |
| 81.149.64.1 | 1368735745 | 0 |
| 81.149.64.2 | 1368735746 | 0 |
| 81.149.64.3 | 1368735747 | 0 |
| 81.149.64.4 | 1368735748 | 0 |
| 81.149.64.5 | 1368735749 | 0 |
| 81.149.64.6 | 1368735750 | 0 |
| 81.149.64.7 | 1368735751 | 0 |
| 81.149.64.8 | 1368735752 | 0 |
| 81.149.64.9 | 1368735753 | 0 |
| 81.149.64.10 | 1368735754 | 0 |
| 81.149.64.11 | 1368735755 | 0 |
| 81.149.64.12 | 1368735756 | 0 |
| 81.149.64.13 | 1368735757 | 0 |
| 81.149.64.14 | 1368735758 | 0 |
| 81.149.64.15 | 1368735759 | 0 |
| 81.149.64.16 | 1368735760 | 0 |
| 81.149.64.17 | 1368735761 | 0 |
| 81.149.64.18 | 1368735762 | 0 |
| 81.149.64.19 | 1368735763 | 0 |
| 81.149.64.20 | 1368735764 | 0 |
| 81.149.64.21 | 1368735765 | 0 |
| 81.149.64.22 | 1368735766 | 0 |
| 81.149.64.23 | 1368735767 | 0 |
| 81.149.64.24 | 1368735768 | 0 |
| 81.149.64.25 | 1368735769 | 0 |
| 81.149.64.26 | 1368735770 | 0 |
| 81.149.64.27 | 1368735771 | 0 |
| 81.149.64.28 | 1368735772 | 0 |
| 81.149.64.29 | 1368735773 | 0 |
| 81.149.64.30 | 1368735774 | 0 |
| 81.149.64.31 | 1368735775 | 0 |
| 81.149.64.32 | 1368735776 | 0 |
| 81.149.64.33 | 1368735777 | 0 |
| 81.149.64.34 | 1368735778 | 0 |
| 81.149.64.35 | 1368735779 | 0 |
| 81.149.64.36 | 1368735780 | 0 |
| 81.149.64.37 | 1368735781 | 0 |
| 81.149.64.38 | 1368735782 | 0 |
| 81.149.64.39 | 1368735783 | 0 |
| 81.149.64.40 | 1368735784 | 0 |
| 81.149.64.41 | 1368735785 | 0 |
| 81.149.64.42 | 1368735786 | 0 |
| 81.149.64.43 | 1368735787 | 0 |
| 81.149.64.44 | 1368735788 | 0 |
| 81.149.64.45 | 1368735789 | 0 |
| 81.149.64.46 | 1368735790 | 0 |
| 81.149.64.47 | 1368735791 | 0 |
| 81.149.64.48 | 1368735792 | 0 |
| 81.149.64.49 | 1368735793 | 0 |
| 81.149.64.50 | 1368735794 | 0 |
| 81.149.64.51 | 1368735795 | 0 |
| 81.149.64.52 | 1368735796 | 0 |
| 81.149.64.53 | 1368735797 | 0 |
| 81.149.64.54 | 1368735798 | 0 |
| 81.149.64.55 | 1368735799 | 0 |
| 81.149.64.56 | 1368735800 | 0 |
| 81.149.64.57 | 1368735801 | 0 |
| 81.149.64.58 | 1368735802 | 0 |
| 81.149.64.59 | 1368735803 | 0 |
| 81.149.64.60 | 1368735804 | 0 |
| 81.149.64.61 | 1368735805 | 0 |
| 81.149.64.62 | 1368735806 | 0 |
| 81.149.64.63 | 1368735807 | 0 |
| 81.149.64.64 | 1368735808 | 0 |
| 81.149.64.65 | 1368735809 | 0 |
| 81.149.64.66 | 1368735810 | 0 |
| 81.149.64.67 | 1368735811 | 0 |
| 81.149.64.68 | 1368735812 | 0 |
| 81.149.64.69 | 1368735813 | 0 |
| 81.149.64.70 | 1368735814 | 0 |
| 81.149.64.71 | 1368735815 | 0 |
| 81.149.64.72 | 1368735816 | 0 |
| 81.149.64.73 | 1368735817 | 0 |
| 81.149.64.74 | 1368735818 | 0 |
| 81.149.64.75 | 1368735819 | 0 |
| 81.149.64.76 | 1368735820 | 0 |
| 81.149.64.77 | 1368735821 | 0 |
| 81.149.64.78 | 1368735822 | 0 |
| 81.149.64.79 | 1368735823 | 0 |
| 81.149.64.80 | 1368735824 | 0 |
| 81.149.64.81 | 1368735825 | 0 |
| 81.149.64.82 | 1368735826 | 0 |
| 81.149.64.83 | 1368735827 | 0 |
| 81.149.64.84 | 1368735828 | 0 |
| 81.149.64.85 | 1368735829 | 0 |