Les adresses IP débutant par 81.158.80 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 | 10/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Brentwood | 51,6213 | 0,3056 | 2017-07-09 |
| MaxMind | GB | Royaume-Uni | - | Brentwood | 51,5978 | 0,3317 | 2017-07-09 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.158.80.0 | 1369329664 | 0 |
| 81.158.80.1 | 1369329665 | 0 |
| 81.158.80.2 | 1369329666 | 0 |
| 81.158.80.3 | 1369329667 | 0 |
| 81.158.80.4 | 1369329668 | 0 |
| 81.158.80.5 | 1369329669 | 0 |
| 81.158.80.6 | 1369329670 | 0 |
| 81.158.80.7 | 1369329671 | 0 |
| 81.158.80.8 | 1369329672 | 0 |
| 81.158.80.9 | 1369329673 | 0 |
| 81.158.80.10 | 1369329674 | 0 |
| 81.158.80.11 | 1369329675 | 0 |
| 81.158.80.12 | 1369329676 | 0 |
| 81.158.80.13 | 1369329677 | 0 |
| 81.158.80.14 | 1369329678 | 0 |
| 81.158.80.15 | 1369329679 | 0 |
| 81.158.80.16 | 1369329680 | 0 |
| 81.158.80.17 | 1369329681 | 0 |
| 81.158.80.18 | 1369329682 | 0 |
| 81.158.80.19 | 1369329683 | 0 |
| 81.158.80.20 | 1369329684 | 0 |
| 81.158.80.21 | 1369329685 | 0 |
| 81.158.80.22 | 1369329686 | 0 |
| 81.158.80.23 | 1369329687 | 0 |
| 81.158.80.24 | 1369329688 | 0 |
| 81.158.80.25 | 1369329689 | 0 |
| 81.158.80.26 | 1369329690 | 0 |
| 81.158.80.27 | 1369329691 | 0 |
| 81.158.80.28 | 1369329692 | 0 |
| 81.158.80.29 | 1369329693 | 0 |
| 81.158.80.30 | 1369329694 | 0 |
| 81.158.80.31 | 1369329695 | 0 |
| 81.158.80.32 | 1369329696 | 0 |
| 81.158.80.33 | 1369329697 | 0 |
| 81.158.80.34 | 1369329698 | 0 |
| 81.158.80.35 | 1369329699 | 0 |
| 81.158.80.36 | 1369329700 | 0 |
| 81.158.80.37 | 1369329701 | 0 |
| 81.158.80.38 | 1369329702 | 0 |
| 81.158.80.39 | 1369329703 | 0 |
| 81.158.80.40 | 1369329704 | 0 |
| 81.158.80.41 | 1369329705 | 0 |
| 81.158.80.42 | 1369329706 | 0 |
| 81.158.80.43 | 1369329707 | 0 |
| 81.158.80.44 | 1369329708 | 0 |
| 81.158.80.45 | 1369329709 | 0 |
| 81.158.80.46 | 1369329710 | 0 |
| 81.158.80.47 | 1369329711 | 0 |
| 81.158.80.48 | 1369329712 | 0 |
| 81.158.80.49 | 1369329713 | 0 |
| 81.158.80.50 | 1369329714 | 0 |
| 81.158.80.51 | 1369329715 | 0 |
| 81.158.80.52 | 1369329716 | 0 |
| 81.158.80.53 | 1369329717 | 0 |
| 81.158.80.54 | 1369329718 | 0 |
| 81.158.80.55 | 1369329719 | 0 |
| 81.158.80.56 | 1369329720 | 0 |
| 81.158.80.57 | 1369329721 | 0 |
| 81.158.80.58 | 1369329722 | 0 |
| 81.158.80.59 | 1369329723 | 0 |
| 81.158.80.60 | 1369329724 | 0 |
| 81.158.80.61 | 1369329725 | 0 |
| 81.158.80.62 | 1369329726 | 0 |
| 81.158.80.63 | 1369329727 | 0 |
| 81.158.80.64 | 1369329728 | 0 |
| 81.158.80.65 | 1369329729 | 0 |
| 81.158.80.66 | 1369329730 | 0 |
| 81.158.80.67 | 1369329731 | 0 |
| 81.158.80.68 | 1369329732 | 0 |
| 81.158.80.69 | 1369329733 | 0 |
| 81.158.80.70 | 1369329734 | 0 |
| 81.158.80.71 | 1369329735 | 0 |
| 81.158.80.72 | 1369329736 | 0 |
| 81.158.80.73 | 1369329737 | 0 |
| 81.158.80.74 | 1369329738 | 0 |
| 81.158.80.75 | 1369329739 | 0 |
| 81.158.80.76 | 1369329740 | 0 |
| 81.158.80.77 | 1369329741 | 0 |
| 81.158.80.78 | 1369329742 | 0 |
| 81.158.80.79 | 1369329743 | 0 |
| 81.158.80.80 | 1369329744 | 0 |
| 81.158.80.81 | 1369329745 | 0 |
| 81.158.80.82 | 1369329746 | 0 |
| 81.158.80.83 | 1369329747 | 0 |
| 81.158.80.84 | 1369329748 | 0 |
| 81.158.80.85 | 1369329749 | 0 |