Les adresses IP débutant par 145.131.6 sont fournies par SURFnet, elles appartiennent au CIDR (Classless Inter-Domain Routing) 145.128.0.0/10, le bloc IP comprant les adresses de 145.128.0.0 à 145.191.255.255). Le numéro de système autonome (ASN) est 1103.
| ASN | 1103 |
| IP commençant par | 145.128.0.0 |
| IP se terminant par | 145.191.255.255 |
| Nom ASN | SURFnet |
| CDIR | 145.128.0.0/10 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 01/08/2019 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Den Haag | 52,0767 | 4,2986 | 2019-08-01 |
| MaxMind | NL | Pays-Bas | - | Rotterdam | 51,9797 | 4,5876 | 2019-08-01 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.131.6.0 | 2441283072 | 0 |
| 145.131.6.1 | 2441283073 | 0 |
| 145.131.6.2 | 2441283074 | 0 |
| 145.131.6.3 | 2441283075 | 0 |
| 145.131.6.4 | 2441283076 | 0 |
| 145.131.6.5 | 2441283077 | 0 |
| 145.131.6.6 | 2441283078 | 0 |
| 145.131.6.7 | 2441283079 | 0 |
| 145.131.6.8 | 2441283080 | 0 |
| 145.131.6.9 | 2441283081 | 0 |
| 145.131.6.10 | 2441283082 | 0 |
| 145.131.6.11 | 2441283083 | 0 |
| 145.131.6.12 | 2441283084 | 0 |
| 145.131.6.13 | 2441283085 | 0 |
| 145.131.6.14 | 2441283086 | 0 |
| 145.131.6.15 | 2441283087 | 0 |
| 145.131.6.16 | 2441283088 | 0 |
| 145.131.6.17 | 2441283089 | 0 |
| 145.131.6.18 | 2441283090 | 0 |
| 145.131.6.19 | 2441283091 | 0 |
| 145.131.6.20 | 2441283092 | 0 |
| 145.131.6.21 | 2441283093 | 0 |
| 145.131.6.22 | 2441283094 | 0 |
| 145.131.6.23 | 2441283095 | 0 |
| 145.131.6.24 | 2441283096 | 0 |
| 145.131.6.25 | 2441283097 | 0 |
| 145.131.6.26 | 2441283098 | 0 |
| 145.131.6.27 | 2441283099 | 0 |
| 145.131.6.28 | 2441283100 | 0 |
| 145.131.6.29 | 2441283101 | 0 |
| 145.131.6.30 | 2441283102 | 0 |
| 145.131.6.31 | 2441283103 | 0 |
| 145.131.6.32 | 2441283104 | 0 |
| 145.131.6.33 | 2441283105 | 0 |
| 145.131.6.34 | 2441283106 | 0 |
| 145.131.6.35 | 2441283107 | 0 |
| 145.131.6.36 | 2441283108 | 0 |
| 145.131.6.37 | 2441283109 | 0 |
| 145.131.6.38 | 2441283110 | 0 |
| 145.131.6.39 | 2441283111 | 0 |
| 145.131.6.40 | 2441283112 | 0 |
| 145.131.6.41 | 2441283113 | 0 |
| 145.131.6.42 | 2441283114 | 0 |
| 145.131.6.43 | 2441283115 | 0 |
| 145.131.6.44 | 2441283116 | 0 |
| 145.131.6.45 | 2441283117 | 0 |
| 145.131.6.46 | 2441283118 | 0 |
| 145.131.6.47 | 2441283119 | 0 |
| 145.131.6.48 | 2441283120 | 0 |
| 145.131.6.49 | 2441283121 | 0 |
| 145.131.6.50 | 2441283122 | 0 |
| 145.131.6.51 | 2441283123 | 0 |
| 145.131.6.52 | 2441283124 | 0 |
| 145.131.6.53 | 2441283125 | 0 |
| 145.131.6.54 | 2441283126 | 0 |
| 145.131.6.55 | 2441283127 | 0 |
| 145.131.6.56 | 2441283128 | 0 |
| 145.131.6.57 | 2441283129 | 0 |
| 145.131.6.58 | 2441283130 | 0 |
| 145.131.6.59 | 2441283131 | 0 |
| 145.131.6.60 | 2441283132 | 0 |
| 145.131.6.61 | 2441283133 | 0 |
| 145.131.6.62 | 2441283134 | 0 |
| 145.131.6.63 | 2441283135 | 0 |
| 145.131.6.64 | 2441283136 | 0 |
| 145.131.6.65 | 2441283137 | 0 |
| 145.131.6.66 | 2441283138 | 0 |
| 145.131.6.67 | 2441283139 | 0 |
| 145.131.6.68 | 2441283140 | 0 |
| 145.131.6.69 | 2441283141 | 0 |
| 145.131.6.70 | 2441283142 | 0 |
| 145.131.6.71 | 2441283143 | 0 |
| 145.131.6.72 | 2441283144 | 0 |
| 145.131.6.73 | 2441283145 | 0 |
| 145.131.6.74 | 2441283146 | 0 |
| 145.131.6.75 | 2441283147 | 0 |
| 145.131.6.76 | 2441283148 | 0 |
| 145.131.6.77 | 2441283149 | 0 |
| 145.131.6.78 | 2441283150 | 0 |
| 145.131.6.79 | 2441283151 | 0 |
| 145.131.6.80 | 2441283152 | 0 |
| 145.131.6.81 | 2441283153 | 0 |
| 145.131.6.82 | 2441283154 | 0 |
| 145.131.6.83 | 2441283155 | 0 |
| 145.131.6.84 | 2441283156 | 0 |
| 145.131.6.85 | 2441283157 | 0 |