Les adresses IP débutant par 81.139.73 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 | 20/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Stafford | 52,8052 | -2,1164 | 2017-07-03 |
| MaxMind | GB | Royaume-Uni | - | - | 51,4964 | -0,1224 | 2017-07-03 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.139.73.0 | 1368082688 | 0 |
| 81.139.73.1 | 1368082689 | 0 |
| 81.139.73.2 | 1368082690 | 0 |
| 81.139.73.3 | 1368082691 | 0 |
| 81.139.73.4 | 1368082692 | 0 |
| 81.139.73.5 | 1368082693 | 0 |
| 81.139.73.6 | 1368082694 | 0 |
| 81.139.73.7 | 1368082695 | 0 |
| 81.139.73.8 | 1368082696 | 0 |
| 81.139.73.9 | 1368082697 | 0 |
| 81.139.73.10 | 1368082698 | 0 |
| 81.139.73.11 | 1368082699 | 0 |
| 81.139.73.12 | 1368082700 | 0 |
| 81.139.73.13 | 1368082701 | 0 |
| 81.139.73.14 | 1368082702 | 0 |
| 81.139.73.15 | 1368082703 | 0 |
| 81.139.73.16 | 1368082704 | 0 |
| 81.139.73.17 | 1368082705 | 0 |
| 81.139.73.18 | 1368082706 | 0 |
| 81.139.73.19 | 1368082707 | 0 |
| 81.139.73.20 | 1368082708 | 0 |
| 81.139.73.21 | 1368082709 | 0 |
| 81.139.73.22 | 1368082710 | 0 |
| 81.139.73.23 | 1368082711 | 0 |
| 81.139.73.24 | 1368082712 | 0 |
| 81.139.73.25 | 1368082713 | 0 |
| 81.139.73.26 | 1368082714 | 0 |
| 81.139.73.27 | 1368082715 | 0 |
| 81.139.73.28 | 1368082716 | 0 |
| 81.139.73.29 | 1368082717 | 0 |
| 81.139.73.30 | 1368082718 | 0 |
| 81.139.73.31 | 1368082719 | 0 |
| 81.139.73.32 | 1368082720 | 0 |
| 81.139.73.33 | 1368082721 | 0 |
| 81.139.73.34 | 1368082722 | 0 |
| 81.139.73.35 | 1368082723 | 0 |
| 81.139.73.36 | 1368082724 | 0 |
| 81.139.73.37 | 1368082725 | 0 |
| 81.139.73.38 | 1368082726 | 0 |
| 81.139.73.39 | 1368082727 | 0 |
| 81.139.73.40 | 1368082728 | 0 |
| 81.139.73.41 | 1368082729 | 0 |
| 81.139.73.42 | 1368082730 | 0 |
| 81.139.73.43 | 1368082731 | 0 |
| 81.139.73.44 | 1368082732 | 0 |
| 81.139.73.45 | 1368082733 | 0 |
| 81.139.73.46 | 1368082734 | 0 |
| 81.139.73.47 | 1368082735 | 0 |
| 81.139.73.48 | 1368082736 | 0 |
| 81.139.73.49 | 1368082737 | 0 |
| 81.139.73.50 | 1368082738 | 0 |
| 81.139.73.51 | 1368082739 | 0 |
| 81.139.73.52 | 1368082740 | 0 |
| 81.139.73.53 | 1368082741 | 0 |
| 81.139.73.54 | 1368082742 | 0 |
| 81.139.73.55 | 1368082743 | 0 |
| 81.139.73.56 | 1368082744 | 0 |
| 81.139.73.57 | 1368082745 | 0 |
| 81.139.73.58 | 1368082746 | 0 |
| 81.139.73.59 | 1368082747 | 0 |
| 81.139.73.60 | 1368082748 | 0 |
| 81.139.73.61 | 1368082749 | 0 |
| 81.139.73.62 | 1368082750 | 0 |
| 81.139.73.63 | 1368082751 | 0 |
| 81.139.73.64 | 1368082752 | 0 |
| 81.139.73.65 | 1368082753 | 0 |
| 81.139.73.66 | 1368082754 | 0 |
| 81.139.73.67 | 1368082755 | 0 |
| 81.139.73.68 | 1368082756 | 0 |
| 81.139.73.69 | 1368082757 | 0 |
| 81.139.73.70 | 1368082758 | 0 |
| 81.139.73.71 | 1368082759 | 0 |
| 81.139.73.72 | 1368082760 | 0 |
| 81.139.73.73 | 1368082761 | 0 |
| 81.139.73.74 | 1368082762 | 0 |
| 81.139.73.75 | 1368082763 | 0 |
| 81.139.73.76 | 1368082764 | 0 |
| 81.139.73.77 | 1368082765 | 0 |
| 81.139.73.78 | 1368082766 | 0 |
| 81.139.73.79 | 1368082767 | 0 |
| 81.139.73.80 | 1368082768 | 0 |
| 81.139.73.81 | 1368082769 | 0 |
| 81.139.73.82 | 1368082770 | 0 |
| 81.139.73.83 | 1368082771 | 0 |
| 81.139.73.84 | 1368082772 | 0 |
| 81.139.73.85 | 1368082773 | 0 |