Les adresses IP débutant par 51.91.31 sont fournies par Microsoft Corporation, elles appartiennent au CIDR (Classless Inter-Domain Routing) 51.103.0.0/16, le bloc IP comprant les adresses de 51.103.0.0 à 51.103.255.255). Le numéro de système autonome (ASN) est 8075.
| ASN | 8075 |
| IP commençant par | 51.103.0.0 |
| IP se terminant par | 51.103.255.255 |
| Nom ASN | Microsoft Corporation |
| CDIR | 51.103.0.0/16 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 02/01/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Warrington | 52,1845 | -0,6876 | 2018-01-02 |
| MaxMind | GB | Royaume-Uni | - | - | 51,4964 | -0,1224 | 2018-01-02 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 51.91.31.0 | 861609728 | 0 |
| 51.91.31.1 | 861609729 | 0 |
| 51.91.31.2 | 861609730 | 0 |
| 51.91.31.3 | 861609731 | 0 |
| 51.91.31.4 | 861609732 | 0 |
| 51.91.31.5 | 861609733 | 0 |
| 51.91.31.6 | 861609734 | 0 |
| 51.91.31.7 | 861609735 | 0 |
| 51.91.31.8 | 861609736 | 0 |
| 51.91.31.9 | 861609737 | 0 |
| 51.91.31.10 | 861609738 | 0 |
| 51.91.31.11 | 861609739 | 0 |
| 51.91.31.12 | 861609740 | 0 |
| 51.91.31.13 | 861609741 | 0 |
| 51.91.31.14 | 861609742 | 0 |
| 51.91.31.15 | 861609743 | 0 |
| 51.91.31.16 | 861609744 | 0 |
| 51.91.31.17 | 861609745 | 0 |
| 51.91.31.18 | 861609746 | 0 |
| 51.91.31.19 | 861609747 | 0 |
| 51.91.31.20 | 861609748 | 0 |
| 51.91.31.21 | 861609749 | 0 |
| 51.91.31.22 | 861609750 | 0 |
| 51.91.31.23 | 861609751 | 0 |
| 51.91.31.24 | 861609752 | 0 |
| 51.91.31.25 | 861609753 | 0 |
| 51.91.31.26 | 861609754 | 0 |
| 51.91.31.27 | 861609755 | 0 |
| 51.91.31.28 | 861609756 | 0 |
| 51.91.31.29 | 861609757 | 0 |
| 51.91.31.30 | 861609758 | 0 |
| 51.91.31.31 | 861609759 | 0 |
| 51.91.31.32 | 861609760 | 0 |
| 51.91.31.33 | 861609761 | 0 |
| 51.91.31.34 | 861609762 | 0 |
| 51.91.31.35 | 861609763 | 0 |
| 51.91.31.36 | 861609764 | 0 |
| 51.91.31.37 | 861609765 | 0 |
| 51.91.31.38 | 861609766 | 0 |
| 51.91.31.39 | 861609767 | 0 |
| 51.91.31.40 | 861609768 | 0 |
| 51.91.31.41 | 861609769 | 0 |
| 51.91.31.42 | 861609770 | 0 |
| 51.91.31.43 | 861609771 | 0 |
| 51.91.31.44 | 861609772 | 0 |
| 51.91.31.45 | 861609773 | 0 |
| 51.91.31.46 | 861609774 | 0 |
| 51.91.31.47 | 861609775 | 0 |
| 51.91.31.48 | 861609776 | 0 |
| 51.91.31.49 | 861609777 | 0 |
| 51.91.31.50 | 861609778 | 0 |
| 51.91.31.51 | 861609779 | 0 |
| 51.91.31.52 | 861609780 | 0 |
| 51.91.31.53 | 861609781 | 0 |
| 51.91.31.54 | 861609782 | 0 |
| 51.91.31.55 | 861609783 | 0 |
| 51.91.31.56 | 861609784 | 0 |
| 51.91.31.57 | 861609785 | 0 |
| 51.91.31.58 | 861609786 | 0 |
| 51.91.31.59 | 861609787 | 0 |
| 51.91.31.60 | 861609788 | 0 |
| 51.91.31.61 | 861609789 | 0 |
| 51.91.31.62 | 861609790 | 0 |
| 51.91.31.63 | 861609791 | 0 |
| 51.91.31.64 | 861609792 | 0 |
| 51.91.31.65 | 861609793 | 0 |
| 51.91.31.66 | 861609794 | 0 |
| 51.91.31.67 | 861609795 | 0 |
| 51.91.31.68 | 861609796 | 0 |
| 51.91.31.69 | 861609797 | 0 |
| 51.91.31.70 | 861609798 | 0 |
| 51.91.31.71 | 861609799 | 0 |
| 51.91.31.72 | 861609800 | 0 |
| 51.91.31.73 | 861609801 | 0 |
| 51.91.31.74 | 861609802 | 0 |
| 51.91.31.75 | 861609803 | 0 |
| 51.91.31.76 | 861609804 | 0 |
| 51.91.31.77 | 861609805 | 0 |
| 51.91.31.78 | 861609806 | 0 |
| 51.91.31.79 | 861609807 | 0 |
| 51.91.31.80 | 861609808 | 0 |
| 51.91.31.81 | 861609809 | 0 |
| 51.91.31.82 | 861609810 | 0 |
| 51.91.31.83 | 861609811 | 0 |
| 51.91.31.84 | 861609812 | 0 |
| 51.91.31.85 | 861609813 | 0 |