Les adresses IP débutant par 137.56.68 sont fournies par SURFnet, elles appartiennent au CIDR (Classless Inter-Domain Routing) 137.56.0.0/16, le bloc IP comprant les adresses de 137.56.0.0 à 137.56.255.255). Le numéro de système autonome (ASN) est 1103.
| ASN | 1103 |
| IP commençant par | 137.56.0.0 |
| IP se terminant par | 137.56.255.255 |
| Nom ASN | SURFnet |
| CDIR | 137.56.0.0/16 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 17/05/2019 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Tilburg | 51,5555 | 5,0913 | 2019-05-17 |
| MaxMind | US | États-Unis | - | San Jose | 37,425 | -121,946 | 2019-05-17 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 137.56.68.0 | 2302166016 | 0 |
| 137.56.68.1 | 2302166017 | 0 |
| 137.56.68.2 | 2302166018 | 0 |
| 137.56.68.3 | 2302166019 | 0 |
| 137.56.68.4 | 2302166020 | 0 |
| 137.56.68.5 | 2302166021 | 0 |
| 137.56.68.6 | 2302166022 | 0 |
| 137.56.68.7 | 2302166023 | 0 |
| 137.56.68.8 | 2302166024 | 0 |
| 137.56.68.9 | 2302166025 | 0 |
| 137.56.68.10 | 2302166026 | 0 |
| 137.56.68.11 | 2302166027 | 0 |
| 137.56.68.12 | 2302166028 | 0 |
| 137.56.68.13 | 2302166029 | 0 |
| 137.56.68.14 | 2302166030 | 0 |
| 137.56.68.15 | 2302166031 | 0 |
| 137.56.68.16 | 2302166032 | 0 |
| 137.56.68.17 | 2302166033 | 0 |
| 137.56.68.18 | 2302166034 | 0 |
| 137.56.68.19 | 2302166035 | 0 |
| 137.56.68.20 | 2302166036 | 0 |
| 137.56.68.21 | 2302166037 | 0 |
| 137.56.68.22 | 2302166038 | 0 |
| 137.56.68.23 | 2302166039 | 0 |
| 137.56.68.24 | 2302166040 | 0 |
| 137.56.68.25 | 2302166041 | 0 |
| 137.56.68.26 | 2302166042 | 0 |
| 137.56.68.27 | 2302166043 | 0 |
| 137.56.68.28 | 2302166044 | 0 |
| 137.56.68.29 | 2302166045 | 0 |
| 137.56.68.30 | 2302166046 | 0 |
| 137.56.68.31 | 2302166047 | 0 |
| 137.56.68.32 | 2302166048 | 0 |
| 137.56.68.33 | 2302166049 | 0 |
| 137.56.68.34 | 2302166050 | 0 |
| 137.56.68.35 | 2302166051 | 0 |
| 137.56.68.36 | 2302166052 | 0 |
| 137.56.68.37 | 2302166053 | 0 |
| 137.56.68.38 | 2302166054 | 0 |
| 137.56.68.39 | 2302166055 | 0 |
| 137.56.68.40 | 2302166056 | 0 |
| 137.56.68.41 | 2302166057 | 0 |
| 137.56.68.42 | 2302166058 | 0 |
| 137.56.68.43 | 2302166059 | 0 |
| 137.56.68.44 | 2302166060 | 0 |
| 137.56.68.45 | 2302166061 | 0 |
| 137.56.68.46 | 2302166062 | 0 |
| 137.56.68.47 | 2302166063 | 0 |
| 137.56.68.48 | 2302166064 | 0 |
| 137.56.68.49 | 2302166065 | 0 |
| 137.56.68.50 | 2302166066 | 0 |
| 137.56.68.51 | 2302166067 | 0 |
| 137.56.68.52 | 2302166068 | 0 |
| 137.56.68.53 | 2302166069 | 0 |
| 137.56.68.54 | 2302166070 | 0 |
| 137.56.68.55 | 2302166071 | 0 |
| 137.56.68.56 | 2302166072 | 0 |
| 137.56.68.57 | 2302166073 | 0 |
| 137.56.68.58 | 2302166074 | 0 |
| 137.56.68.59 | 2302166075 | 0 |
| 137.56.68.60 | 2302166076 | 0 |
| 137.56.68.61 | 2302166077 | 0 |
| 137.56.68.62 | 2302166078 | 0 |
| 137.56.68.63 | 2302166079 | 0 |
| 137.56.68.64 | 2302166080 | 0 |
| 137.56.68.65 | 2302166081 | 0 |
| 137.56.68.66 | 2302166082 | 0 |
| 137.56.68.67 | 2302166083 | 0 |
| 137.56.68.68 | 2302166084 | 0 |
| 137.56.68.69 | 2302166085 | 0 |
| 137.56.68.70 | 2302166086 | 0 |
| 137.56.68.71 | 2302166087 | 0 |
| 137.56.68.72 | 2302166088 | 0 |
| 137.56.68.73 | 2302166089 | 0 |
| 137.56.68.74 | 2302166090 | 0 |
| 137.56.68.75 | 2302166091 | 0 |
| 137.56.68.76 | 2302166092 | 0 |
| 137.56.68.77 | 2302166093 | 0 |
| 137.56.68.78 | 2302166094 | 0 |
| 137.56.68.79 | 2302166095 | 0 |
| 137.56.68.80 | 2302166096 | 0 |
| 137.56.68.81 | 2302166097 | 0 |
| 137.56.68.82 | 2302166098 | 0 |
| 137.56.68.83 | 2302166099 | 0 |
| 137.56.68.84 | 2302166100 | 0 |
| 137.56.68.85 | 2302166101 | 0 |