Les adresses IP débutant par 145.73.57 sont fournies par SURFnet, elles appartiennent au CIDR (Classless Inter-Domain Routing) 145.74.0.0/15, le bloc IP comprant les adresses de 145.74.0.0 à 145.75.255.255). Le numéro de système autonome (ASN) est 1103.
| ASN | 1103 |
| IP commençant par | 145.74.0.0 |
| IP se terminant par | 145.75.255.255 |
| Nom ASN | SURFnet |
| CDIR | 145.74.0.0/15 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 28/05/2019 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Arnhem | 51,98 | 5,9111 | 2019-05-28 |
| MaxMind | NL | Pays-Bas | - | Arnhem | 51,9798 | 5,9256 | 2019-05-28 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.73.57.0 | 2437495040 | 0 |
| 145.73.57.1 | 2437495041 | 0 |
| 145.73.57.2 | 2437495042 | 0 |
| 145.73.57.3 | 2437495043 | 0 |
| 145.73.57.4 | 2437495044 | 0 |
| 145.73.57.5 | 2437495045 | 0 |
| 145.73.57.6 | 2437495046 | 0 |
| 145.73.57.7 | 2437495047 | 0 |
| 145.73.57.8 | 2437495048 | 0 |
| 145.73.57.9 | 2437495049 | 0 |
| 145.73.57.10 | 2437495050 | 0 |
| 145.73.57.11 | 2437495051 | 0 |
| 145.73.57.12 | 2437495052 | 0 |
| 145.73.57.13 | 2437495053 | 0 |
| 145.73.57.14 | 2437495054 | 0 |
| 145.73.57.15 | 2437495055 | 0 |
| 145.73.57.16 | 2437495056 | 0 |
| 145.73.57.17 | 2437495057 | 0 |
| 145.73.57.18 | 2437495058 | 0 |
| 145.73.57.19 | 2437495059 | 0 |
| 145.73.57.20 | 2437495060 | 0 |
| 145.73.57.21 | 2437495061 | 0 |
| 145.73.57.22 | 2437495062 | 0 |
| 145.73.57.23 | 2437495063 | 0 |
| 145.73.57.24 | 2437495064 | 0 |
| 145.73.57.25 | 2437495065 | 0 |
| 145.73.57.26 | 2437495066 | 0 |
| 145.73.57.27 | 2437495067 | 0 |
| 145.73.57.28 | 2437495068 | 0 |
| 145.73.57.29 | 2437495069 | 0 |
| 145.73.57.30 | 2437495070 | 0 |
| 145.73.57.31 | 2437495071 | 0 |
| 145.73.57.32 | 2437495072 | 0 |
| 145.73.57.33 | 2437495073 | 0 |
| 145.73.57.34 | 2437495074 | 0 |
| 145.73.57.35 | 2437495075 | 0 |
| 145.73.57.36 | 2437495076 | 0 |
| 145.73.57.37 | 2437495077 | 0 |
| 145.73.57.38 | 2437495078 | 0 |
| 145.73.57.39 | 2437495079 | 0 |
| 145.73.57.40 | 2437495080 | 0 |
| 145.73.57.41 | 2437495081 | 0 |
| 145.73.57.42 | 2437495082 | 0 |
| 145.73.57.43 | 2437495083 | 0 |
| 145.73.57.44 | 2437495084 | 0 |
| 145.73.57.45 | 2437495085 | 0 |
| 145.73.57.46 | 2437495086 | 0 |
| 145.73.57.47 | 2437495087 | 0 |
| 145.73.57.48 | 2437495088 | 0 |
| 145.73.57.49 | 2437495089 | 0 |
| 145.73.57.50 | 2437495090 | 0 |
| 145.73.57.51 | 2437495091 | 0 |
| 145.73.57.52 | 2437495092 | 0 |
| 145.73.57.53 | 2437495093 | 0 |
| 145.73.57.54 | 2437495094 | 0 |
| 145.73.57.55 | 2437495095 | 0 |
| 145.73.57.56 | 2437495096 | 0 |
| 145.73.57.57 | 2437495097 | 0 |
| 145.73.57.58 | 2437495098 | 0 |
| 145.73.57.59 | 2437495099 | 0 |
| 145.73.57.60 | 2437495100 | 0 |
| 145.73.57.61 | 2437495101 | 0 |
| 145.73.57.62 | 2437495102 | 0 |
| 145.73.57.63 | 2437495103 | 0 |
| 145.73.57.64 | 2437495104 | 0 |
| 145.73.57.65 | 2437495105 | 0 |
| 145.73.57.66 | 2437495106 | 0 |
| 145.73.57.67 | 2437495107 | 0 |
| 145.73.57.68 | 2437495108 | 0 |
| 145.73.57.69 | 2437495109 | 0 |
| 145.73.57.70 | 2437495110 | 0 |
| 145.73.57.71 | 2437495111 | 0 |
| 145.73.57.72 | 2437495112 | 0 |
| 145.73.57.73 | 2437495113 | 0 |
| 145.73.57.74 | 2437495114 | 0 |
| 145.73.57.75 | 2437495115 | 0 |
| 145.73.57.76 | 2437495116 | 0 |
| 145.73.57.77 | 2437495117 | 0 |
| 145.73.57.78 | 2437495118 | 0 |
| 145.73.57.79 | 2437495119 | 0 |
| 145.73.57.80 | 2437495120 | 0 |
| 145.73.57.81 | 2437495121 | 0 |
| 145.73.57.82 | 2437495122 | 0 |
| 145.73.57.83 | 2437495123 | 0 |
| 145.73.57.84 | 2437495124 | 0 |
| 145.73.57.85 | 2437495125 | 0 |