Les adresses IP débutant par 51.99.31 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 | arin |
| Dernière mise à jour | 22/11/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Warrington | 52,1845 | -0,6876 | 2017-11-21 |
| MaxMind | GB | Royaume-Uni | - | - | 51,4964 | -0,1224 | 2017-11-21 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 51.99.31.0 | 862134016 | 0 |
| 51.99.31.1 | 862134017 | 0 |
| 51.99.31.2 | 862134018 | 0 |
| 51.99.31.3 | 862134019 | 0 |
| 51.99.31.4 | 862134020 | 0 |
| 51.99.31.5 | 862134021 | 0 |
| 51.99.31.6 | 862134022 | 0 |
| 51.99.31.7 | 862134023 | 0 |
| 51.99.31.8 | 862134024 | 0 |
| 51.99.31.9 | 862134025 | 0 |
| 51.99.31.10 | 862134026 | 0 |
| 51.99.31.11 | 862134027 | 0 |
| 51.99.31.12 | 862134028 | 0 |
| 51.99.31.13 | 862134029 | 0 |
| 51.99.31.14 | 862134030 | 0 |
| 51.99.31.15 | 862134031 | 0 |
| 51.99.31.16 | 862134032 | 0 |
| 51.99.31.17 | 862134033 | 0 |
| 51.99.31.18 | 862134034 | 0 |
| 51.99.31.19 | 862134035 | 0 |
| 51.99.31.20 | 862134036 | 0 |
| 51.99.31.21 | 862134037 | 0 |
| 51.99.31.22 | 862134038 | 0 |
| 51.99.31.23 | 862134039 | 0 |
| 51.99.31.24 | 862134040 | 0 |
| 51.99.31.25 | 862134041 | 0 |
| 51.99.31.26 | 862134042 | 0 |
| 51.99.31.27 | 862134043 | 0 |
| 51.99.31.28 | 862134044 | 0 |
| 51.99.31.29 | 862134045 | 0 |
| 51.99.31.30 | 862134046 | 0 |
| 51.99.31.31 | 862134047 | 0 |
| 51.99.31.32 | 862134048 | 0 |
| 51.99.31.33 | 862134049 | 0 |
| 51.99.31.34 | 862134050 | 0 |
| 51.99.31.35 | 862134051 | 0 |
| 51.99.31.36 | 862134052 | 0 |
| 51.99.31.37 | 862134053 | 0 |
| 51.99.31.38 | 862134054 | 0 |
| 51.99.31.39 | 862134055 | 0 |
| 51.99.31.40 | 862134056 | 0 |
| 51.99.31.41 | 862134057 | 0 |
| 51.99.31.42 | 862134058 | 0 |
| 51.99.31.43 | 862134059 | 0 |
| 51.99.31.44 | 862134060 | 0 |
| 51.99.31.45 | 862134061 | 0 |
| 51.99.31.46 | 862134062 | 0 |
| 51.99.31.47 | 862134063 | 0 |
| 51.99.31.48 | 862134064 | 0 |
| 51.99.31.49 | 862134065 | 0 |
| 51.99.31.50 | 862134066 | 0 |
| 51.99.31.51 | 862134067 | 0 |
| 51.99.31.52 | 862134068 | 0 |
| 51.99.31.53 | 862134069 | 0 |
| 51.99.31.54 | 862134070 | 0 |
| 51.99.31.55 | 862134071 | 0 |
| 51.99.31.56 | 862134072 | 0 |
| 51.99.31.57 | 862134073 | 0 |
| 51.99.31.58 | 862134074 | 0 |
| 51.99.31.59 | 862134075 | 0 |
| 51.99.31.60 | 862134076 | 0 |
| 51.99.31.61 | 862134077 | 0 |
| 51.99.31.62 | 862134078 | 0 |
| 51.99.31.63 | 862134079 | 0 |
| 51.99.31.64 | 862134080 | 0 |
| 51.99.31.65 | 862134081 | 0 |
| 51.99.31.66 | 862134082 | 0 |
| 51.99.31.67 | 862134083 | 0 |
| 51.99.31.68 | 862134084 | 0 |
| 51.99.31.69 | 862134085 | 0 |
| 51.99.31.70 | 862134086 | 0 |
| 51.99.31.71 | 862134087 | 0 |
| 51.99.31.72 | 862134088 | 0 |
| 51.99.31.73 | 862134089 | 0 |
| 51.99.31.74 | 862134090 | 0 |
| 51.99.31.75 | 862134091 | 0 |
| 51.99.31.76 | 862134092 | 0 |
| 51.99.31.77 | 862134093 | 0 |
| 51.99.31.78 | 862134094 | 0 |
| 51.99.31.79 | 862134095 | 0 |
| 51.99.31.80 | 862134096 | 0 |
| 51.99.31.81 | 862134097 | 0 |
| 51.99.31.82 | 862134098 | 0 |
| 51.99.31.83 | 862134099 | 0 |
| 51.99.31.84 | 862134100 | 0 |
| 51.99.31.85 | 862134101 | 0 |