L'indirizzo IP 137.56.91 è fornito da SURFnet, che è di proprietà del CIDR (Classless Inter-Domain Routing) 137.56.0.0/16, IP tra 137.56.0.0 a 137.56.255.255 ). Il numero di sistema autonomo (ASN) è 1103.
| ASN | 1103 |
| IP inizia con | 137.56.0.0 |
| IP finale con | 137.56.255.255 |
| ASN Nome | SURFnet |
| CDIR | 137.56.0.0/16 |
| IP numerico | |
| Registe | ripencc |
| Ultimo aggiornamento | 21/05/2019 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | NL | Netherlands | - | Eindhoven | 51,4408 | 5,4778 | 2019-05-21 |
| MaxMind | US | United States | - | San Jose | 37,425 | -121,946 | 2019-05-21 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 137.56.91.0 | 2302171904 | 0 |
| 137.56.91.1 | 2302171905 | 0 |
| 137.56.91.2 | 2302171906 | 0 |
| 137.56.91.3 | 2302171907 | 0 |
| 137.56.91.4 | 2302171908 | 0 |
| 137.56.91.5 | 2302171909 | 0 |
| 137.56.91.6 | 2302171910 | 0 |
| 137.56.91.7 | 2302171911 | 0 |
| 137.56.91.8 | 2302171912 | 0 |
| 137.56.91.9 | 2302171913 | 0 |
| 137.56.91.10 | 2302171914 | 0 |
| 137.56.91.11 | 2302171915 | 0 |
| 137.56.91.12 | 2302171916 | 0 |
| 137.56.91.13 | 2302171917 | 0 |
| 137.56.91.14 | 2302171918 | 0 |
| 137.56.91.15 | 2302171919 | 0 |
| 137.56.91.16 | 2302171920 | 0 |
| 137.56.91.17 | 2302171921 | 0 |
| 137.56.91.18 | 2302171922 | 0 |
| 137.56.91.19 | 2302171923 | 0 |
| 137.56.91.20 | 2302171924 | 0 |
| 137.56.91.21 | 2302171925 | 0 |
| 137.56.91.22 | 2302171926 | 0 |
| 137.56.91.23 | 2302171927 | 0 |
| 137.56.91.24 | 2302171928 | 0 |
| 137.56.91.25 | 2302171929 | 0 |
| 137.56.91.26 | 2302171930 | 0 |
| 137.56.91.27 | 2302171931 | 0 |
| 137.56.91.28 | 2302171932 | 0 |
| 137.56.91.29 | 2302171933 | 0 |
| 137.56.91.30 | 2302171934 | 0 |
| 137.56.91.31 | 2302171935 | 0 |
| 137.56.91.32 | 2302171936 | 0 |
| 137.56.91.33 | 2302171937 | 0 |
| 137.56.91.34 | 2302171938 | 0 |
| 137.56.91.35 | 2302171939 | 0 |
| 137.56.91.36 | 2302171940 | 0 |
| 137.56.91.37 | 2302171941 | 0 |
| 137.56.91.38 | 2302171942 | 0 |
| 137.56.91.39 | 2302171943 | 0 |
| 137.56.91.40 | 2302171944 | 0 |
| 137.56.91.41 | 2302171945 | 0 |
| 137.56.91.42 | 2302171946 | 0 |
| 137.56.91.43 | 2302171947 | 0 |
| 137.56.91.44 | 2302171948 | 0 |
| 137.56.91.45 | 2302171949 | 0 |
| 137.56.91.46 | 2302171950 | 0 |
| 137.56.91.47 | 2302171951 | 0 |
| 137.56.91.48 | 2302171952 | 0 |
| 137.56.91.49 | 2302171953 | 0 |
| 137.56.91.50 | 2302171954 | 0 |
| 137.56.91.51 | 2302171955 | 0 |
| 137.56.91.52 | 2302171956 | 0 |
| 137.56.91.53 | 2302171957 | 0 |
| 137.56.91.54 | 2302171958 | 0 |
| 137.56.91.55 | 2302171959 | 0 |
| 137.56.91.56 | 2302171960 | 0 |
| 137.56.91.57 | 2302171961 | 0 |
| 137.56.91.58 | 2302171962 | 0 |
| 137.56.91.59 | 2302171963 | 0 |
| 137.56.91.60 | 2302171964 | 0 |
| 137.56.91.61 | 2302171965 | 0 |
| 137.56.91.62 | 2302171966 | 0 |
| 137.56.91.63 | 2302171967 | 0 |
| 137.56.91.64 | 2302171968 | 0 |
| 137.56.91.65 | 2302171969 | 0 |
| 137.56.91.66 | 2302171970 | 0 |
| 137.56.91.67 | 2302171971 | 0 |
| 137.56.91.68 | 2302171972 | 0 |
| 137.56.91.69 | 2302171973 | 0 |
| 137.56.91.70 | 2302171974 | 0 |
| 137.56.91.71 | 2302171975 | 0 |
| 137.56.91.72 | 2302171976 | 0 |
| 137.56.91.73 | 2302171977 | 0 |
| 137.56.91.74 | 2302171978 | 0 |
| 137.56.91.75 | 2302171979 | 0 |
| 137.56.91.76 | 2302171980 | 0 |
| 137.56.91.77 | 2302171981 | 0 |
| 137.56.91.78 | 2302171982 | 0 |
| 137.56.91.79 | 2302171983 | 0 |
| 137.56.91.80 | 2302171984 | 0 |
| 137.56.91.81 | 2302171985 | 0 |
| 137.56.91.82 | 2302171986 | 0 |
| 137.56.91.83 | 2302171987 | 0 |
| 137.56.91.84 | 2302171988 | 0 |
| 137.56.91.85 | 2302171989 | 0 |