L'indirizzo IP 51.98.21 è fornito da Microsoft Corporation, che è di proprietà del CIDR (Classless Inter-Domain Routing) 51.103.0.0/16, IP tra 51.103.0.0 a 51.103.255.255 ). Il numero di sistema autonomo (ASN) è 8075.
| ASN | 8075 |
| IP inizia con | 51.103.0.0 |
| IP finale con | 51.103.255.255 |
| ASN Nome | Microsoft Corporation |
| CDIR | 51.103.0.0/16 |
| IP numerico | |
| Registe | ripencc |
| Ultimo aggiornamento | 14/10/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | GB | United Kingdom | - | Warrington | 52,1845 | -0,6876 | 2017-10-14 |
| MaxMind | GB | United Kingdom | - | - | 51,4964 | -0,1224 | 2017-10-14 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 51.98.21.0 | 862065920 | 0 |
| 51.98.21.1 | 862065921 | 0 |
| 51.98.21.2 | 862065922 | 0 |
| 51.98.21.3 | 862065923 | 0 |
| 51.98.21.4 | 862065924 | 0 |
| 51.98.21.5 | 862065925 | 0 |
| 51.98.21.6 | 862065926 | 0 |
| 51.98.21.7 | 862065927 | 0 |
| 51.98.21.8 | 862065928 | 0 |
| 51.98.21.9 | 862065929 | 0 |
| 51.98.21.10 | 862065930 | 0 |
| 51.98.21.11 | 862065931 | 0 |
| 51.98.21.12 | 862065932 | 0 |
| 51.98.21.13 | 862065933 | 0 |
| 51.98.21.14 | 862065934 | 0 |
| 51.98.21.15 | 862065935 | 0 |
| 51.98.21.16 | 862065936 | 0 |
| 51.98.21.17 | 862065937 | 0 |
| 51.98.21.18 | 862065938 | 0 |
| 51.98.21.19 | 862065939 | 0 |
| 51.98.21.20 | 862065940 | 0 |
| 51.98.21.21 | 862065941 | 0 |
| 51.98.21.22 | 862065942 | 0 |
| 51.98.21.23 | 862065943 | 0 |
| 51.98.21.24 | 862065944 | 0 |
| 51.98.21.25 | 862065945 | 0 |
| 51.98.21.26 | 862065946 | 0 |
| 51.98.21.27 | 862065947 | 0 |
| 51.98.21.28 | 862065948 | 0 |
| 51.98.21.29 | 862065949 | 0 |
| 51.98.21.30 | 862065950 | 0 |
| 51.98.21.31 | 862065951 | 0 |
| 51.98.21.32 | 862065952 | 0 |
| 51.98.21.33 | 862065953 | 0 |
| 51.98.21.34 | 862065954 | 0 |
| 51.98.21.35 | 862065955 | 0 |
| 51.98.21.36 | 862065956 | 0 |
| 51.98.21.37 | 862065957 | 0 |
| 51.98.21.38 | 862065958 | 0 |
| 51.98.21.39 | 862065959 | 0 |
| 51.98.21.40 | 862065960 | 0 |
| 51.98.21.41 | 862065961 | 0 |
| 51.98.21.42 | 862065962 | 0 |
| 51.98.21.43 | 862065963 | 0 |
| 51.98.21.44 | 862065964 | 0 |
| 51.98.21.45 | 862065965 | 0 |
| 51.98.21.46 | 862065966 | 0 |
| 51.98.21.47 | 862065967 | 0 |
| 51.98.21.48 | 862065968 | 0 |
| 51.98.21.49 | 862065969 | 0 |
| 51.98.21.50 | 862065970 | 0 |
| 51.98.21.51 | 862065971 | 0 |
| 51.98.21.52 | 862065972 | 0 |
| 51.98.21.53 | 862065973 | 0 |
| 51.98.21.54 | 862065974 | 0 |
| 51.98.21.55 | 862065975 | 0 |
| 51.98.21.56 | 862065976 | 0 |
| 51.98.21.57 | 862065977 | 0 |
| 51.98.21.58 | 862065978 | 0 |
| 51.98.21.59 | 862065979 | 0 |
| 51.98.21.60 | 862065980 | 0 |
| 51.98.21.61 | 862065981 | 0 |
| 51.98.21.62 | 862065982 | 0 |
| 51.98.21.63 | 862065983 | 0 |
| 51.98.21.64 | 862065984 | 0 |
| 51.98.21.65 | 862065985 | 0 |
| 51.98.21.66 | 862065986 | 0 |
| 51.98.21.67 | 862065987 | 0 |
| 51.98.21.68 | 862065988 | 0 |
| 51.98.21.69 | 862065989 | 0 |
| 51.98.21.70 | 862065990 | 0 |
| 51.98.21.71 | 862065991 | 0 |
| 51.98.21.72 | 862065992 | 0 |
| 51.98.21.73 | 862065993 | 0 |
| 51.98.21.74 | 862065994 | 0 |
| 51.98.21.75 | 862065995 | 0 |
| 51.98.21.76 | 862065996 | 0 |
| 51.98.21.77 | 862065997 | 0 |
| 51.98.21.78 | 862065998 | 0 |
| 51.98.21.79 | 862065999 | 0 |
| 51.98.21.80 | 862066000 | 0 |
| 51.98.21.81 | 862066001 | 0 |
| 51.98.21.82 | 862066002 | 0 |
| 51.98.21.83 | 862066003 | 0 |
| 51.98.21.84 | 862066004 | 0 |
| 51.98.21.85 | 862066005 | 0 |