Les adresses IP débutant par 51.51.18 sont fournies par Microsoft Corporation, elles appartiennent au CIDR (Classless Inter-Domain Routing) 51.51.0.0/16, le bloc IP comprant les adresses de 51.51.0.0 à 51.51.255.255). Le numéro de système autonome (ASN) est 8075.
| ASN | 8075 |
| IP commençant par | 51.51.0.0 |
| IP se terminant par | 51.51.255.255 |
| Nom ASN | Microsoft Corporation |
| CDIR | 51.51.0.0/16 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 20/11/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | London | 51,5085 | -0,1257 | 2017-11-20 |
| MaxMind | GB | Royaume-Uni | - | - | 51,4964 | -0,1224 | 2017-11-20 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 51.51.18.0 | 858984960 | 0 |
| 51.51.18.1 | 858984961 | 0 |
| 51.51.18.2 | 858984962 | 0 |
| 51.51.18.3 | 858984963 | 0 |
| 51.51.18.4 | 858984964 | 0 |
| 51.51.18.5 | 858984965 | 0 |
| 51.51.18.6 | 858984966 | 0 |
| 51.51.18.7 | 858984967 | 0 |
| 51.51.18.8 | 858984968 | 0 |
| 51.51.18.9 | 858984969 | 0 |
| 51.51.18.10 | 858984970 | 0 |
| 51.51.18.11 | 858984971 | 0 |
| 51.51.18.12 | 858984972 | 0 |
| 51.51.18.13 | 858984973 | 0 |
| 51.51.18.14 | 858984974 | 0 |
| 51.51.18.15 | 858984975 | 0 |
| 51.51.18.16 | 858984976 | 0 |
| 51.51.18.17 | 858984977 | 0 |
| 51.51.18.18 | 858984978 | 0 |
| 51.51.18.19 | 858984979 | 0 |
| 51.51.18.20 | 858984980 | 0 |
| 51.51.18.21 | 858984981 | 0 |
| 51.51.18.22 | 858984982 | 0 |
| 51.51.18.23 | 858984983 | 0 |
| 51.51.18.24 | 858984984 | 0 |
| 51.51.18.25 | 858984985 | 0 |
| 51.51.18.26 | 858984986 | 0 |
| 51.51.18.27 | 858984987 | 0 |
| 51.51.18.28 | 858984988 | 0 |
| 51.51.18.29 | 858984989 | 0 |
| 51.51.18.30 | 858984990 | 0 |
| 51.51.18.31 | 858984991 | 0 |
| 51.51.18.32 | 858984992 | 0 |
| 51.51.18.33 | 858984993 | 0 |
| 51.51.18.34 | 858984994 | 0 |
| 51.51.18.35 | 858984995 | 0 |
| 51.51.18.36 | 858984996 | 0 |
| 51.51.18.37 | 858984997 | 0 |
| 51.51.18.38 | 858984998 | 0 |
| 51.51.18.39 | 858984999 | 0 |
| 51.51.18.40 | 858985000 | 0 |
| 51.51.18.41 | 858985001 | 0 |
| 51.51.18.42 | 858985002 | 0 |
| 51.51.18.43 | 858985003 | 0 |
| 51.51.18.44 | 858985004 | 0 |
| 51.51.18.45 | 858985005 | 0 |
| 51.51.18.46 | 858985006 | 0 |
| 51.51.18.47 | 858985007 | 0 |
| 51.51.18.48 | 858985008 | 0 |
| 51.51.18.49 | 858985009 | 0 |
| 51.51.18.50 | 858985010 | 0 |
| 51.51.18.51 | 858985011 | 0 |
| 51.51.18.52 | 858985012 | 0 |
| 51.51.18.53 | 858985013 | 0 |
| 51.51.18.54 | 858985014 | 0 |
| 51.51.18.55 | 858985015 | 0 |
| 51.51.18.56 | 858985016 | 0 |
| 51.51.18.57 | 858985017 | 0 |
| 51.51.18.58 | 858985018 | 0 |
| 51.51.18.59 | 858985019 | 0 |
| 51.51.18.60 | 858985020 | 0 |
| 51.51.18.61 | 858985021 | 0 |
| 51.51.18.62 | 858985022 | 0 |
| 51.51.18.63 | 858985023 | 0 |
| 51.51.18.64 | 858985024 | 0 |
| 51.51.18.65 | 858985025 | 0 |
| 51.51.18.66 | 858985026 | 0 |
| 51.51.18.67 | 858985027 | 0 |
| 51.51.18.68 | 858985028 | 0 |
| 51.51.18.69 | 858985029 | 0 |
| 51.51.18.70 | 858985030 | 0 |
| 51.51.18.71 | 858985031 | 0 |
| 51.51.18.72 | 858985032 | 0 |
| 51.51.18.73 | 858985033 | 0 |
| 51.51.18.74 | 858985034 | 0 |
| 51.51.18.75 | 858985035 | 0 |
| 51.51.18.76 | 858985036 | 0 |
| 51.51.18.77 | 858985037 | 0 |
| 51.51.18.78 | 858985038 | 0 |
| 51.51.18.79 | 858985039 | 0 |
| 51.51.18.80 | 858985040 | 0 |
| 51.51.18.81 | 858985041 | 0 |
| 51.51.18.82 | 858985042 | 0 |
| 51.51.18.83 | 858985043 | 0 |
| 51.51.18.84 | 858985044 | 0 |
| 51.51.18.85 | 858985045 | 0 |