Les adresses IP débutant par 81.144.55 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 | 05/08/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | London | 51,5085 | -0,1257 | 2017-08-05 |
| MaxMind | GB | Royaume-Uni | - | - | 51,4964 | -0,1224 | 2017-08-05 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.144.55.0 | 1368405760 | 0 |
| 81.144.55.1 | 1368405761 | 0 |
| 81.144.55.2 | 1368405762 | 0 |
| 81.144.55.3 | 1368405763 | 0 |
| 81.144.55.4 | 1368405764 | 0 |
| 81.144.55.5 | 1368405765 | 0 |
| 81.144.55.6 | 1368405766 | 0 |
| 81.144.55.7 | 1368405767 | 0 |
| 81.144.55.8 | 1368405768 | 0 |
| 81.144.55.9 | 1368405769 | 0 |
| 81.144.55.10 | 1368405770 | 0 |
| 81.144.55.11 | 1368405771 | 0 |
| 81.144.55.12 | 1368405772 | 0 |
| 81.144.55.13 | 1368405773 | 0 |
| 81.144.55.14 | 1368405774 | 0 |
| 81.144.55.15 | 1368405775 | 0 |
| 81.144.55.16 | 1368405776 | 0 |
| 81.144.55.17 | 1368405777 | 0 |
| 81.144.55.18 | 1368405778 | 0 |
| 81.144.55.19 | 1368405779 | 0 |
| 81.144.55.20 | 1368405780 | 0 |
| 81.144.55.21 | 1368405781 | 0 |
| 81.144.55.22 | 1368405782 | 0 |
| 81.144.55.23 | 1368405783 | 0 |
| 81.144.55.24 | 1368405784 | 0 |
| 81.144.55.25 | 1368405785 | 0 |
| 81.144.55.26 | 1368405786 | 0 |
| 81.144.55.27 | 1368405787 | 0 |
| 81.144.55.28 | 1368405788 | 0 |
| 81.144.55.29 | 1368405789 | 0 |
| 81.144.55.30 | 1368405790 | 0 |
| 81.144.55.31 | 1368405791 | 0 |
| 81.144.55.32 | 1368405792 | 0 |
| 81.144.55.33 | 1368405793 | 0 |
| 81.144.55.34 | 1368405794 | 0 |
| 81.144.55.35 | 1368405795 | 0 |
| 81.144.55.36 | 1368405796 | 0 |
| 81.144.55.37 | 1368405797 | 0 |
| 81.144.55.38 | 1368405798 | 0 |
| 81.144.55.39 | 1368405799 | 0 |
| 81.144.55.40 | 1368405800 | 0 |
| 81.144.55.41 | 1368405801 | 0 |
| 81.144.55.42 | 1368405802 | 0 |
| 81.144.55.43 | 1368405803 | 0 |
| 81.144.55.44 | 1368405804 | 0 |
| 81.144.55.45 | 1368405805 | 0 |
| 81.144.55.46 | 1368405806 | 0 |
| 81.144.55.47 | 1368405807 | 0 |
| 81.144.55.48 | 1368405808 | 0 |
| 81.144.55.49 | 1368405809 | 0 |
| 81.144.55.50 | 1368405810 | 0 |
| 81.144.55.51 | 1368405811 | 0 |
| 81.144.55.52 | 1368405812 | 0 |
| 81.144.55.53 | 1368405813 | 0 |
| 81.144.55.54 | 1368405814 | 0 |
| 81.144.55.55 | 1368405815 | 0 |
| 81.144.55.56 | 1368405816 | 0 |
| 81.144.55.57 | 1368405817 | 0 |
| 81.144.55.58 | 1368405818 | 0 |
| 81.144.55.59 | 1368405819 | 0 |
| 81.144.55.60 | 1368405820 | 0 |
| 81.144.55.61 | 1368405821 | 0 |
| 81.144.55.62 | 1368405822 | 0 |
| 81.144.55.63 | 1368405823 | 0 |
| 81.144.55.64 | 1368405824 | 0 |
| 81.144.55.65 | 1368405825 | 0 |
| 81.144.55.66 | 1368405826 | 0 |
| 81.144.55.67 | 1368405827 | 0 |
| 81.144.55.68 | 1368405828 | 0 |
| 81.144.55.69 | 1368405829 | 0 |
| 81.144.55.70 | 1368405830 | 0 |
| 81.144.55.71 | 1368405831 | 0 |
| 81.144.55.72 | 1368405832 | 0 |
| 81.144.55.73 | 1368405833 | 0 |
| 81.144.55.74 | 1368405834 | 0 |
| 81.144.55.75 | 1368405835 | 0 |
| 81.144.55.76 | 1368405836 | 0 |
| 81.144.55.77 | 1368405837 | 0 |
| 81.144.55.78 | 1368405838 | 0 |
| 81.144.55.79 | 1368405839 | 0 |
| 81.144.55.80 | 1368405840 | 0 |
| 81.144.55.81 | 1368405841 | 0 |
| 81.144.55.82 | 1368405842 | 0 |
| 81.144.55.83 | 1368405843 | 0 |
| 81.144.55.84 | 1368405844 | 0 |
| 81.144.55.85 | 1368405845 | 0 |