Les adresses IP débutant par 145.158.3 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 | 11/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Utrecht | 52,0908 | 5,1222 | 2017-10-12 |
| MaxMind | NL | Pays-Bas | - | Utrecht | 52,0938 | 5,1191 | 2017-10-12 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.158.3.0 | 2443051776 | 0 |
| 145.158.3.1 | 2443051777 | 0 |
| 145.158.3.2 | 2443051778 | 0 |
| 145.158.3.3 | 2443051779 | 0 |
| 145.158.3.4 | 2443051780 | 0 |
| 145.158.3.5 | 2443051781 | 0 |
| 145.158.3.6 | 2443051782 | 0 |
| 145.158.3.7 | 2443051783 | 0 |
| 145.158.3.8 | 2443051784 | 0 |
| 145.158.3.9 | 2443051785 | 0 |
| 145.158.3.10 | 2443051786 | 0 |
| 145.158.3.11 | 2443051787 | 0 |
| 145.158.3.12 | 2443051788 | 0 |
| 145.158.3.13 | 2443051789 | 0 |
| 145.158.3.14 | 2443051790 | 0 |
| 145.158.3.15 | 2443051791 | 0 |
| 145.158.3.16 | 2443051792 | 0 |
| 145.158.3.17 | 2443051793 | 0 |
| 145.158.3.18 | 2443051794 | 0 |
| 145.158.3.19 | 2443051795 | 0 |
| 145.158.3.20 | 2443051796 | 0 |
| 145.158.3.21 | 2443051797 | 0 |
| 145.158.3.22 | 2443051798 | 0 |
| 145.158.3.23 | 2443051799 | 0 |
| 145.158.3.24 | 2443051800 | 0 |
| 145.158.3.25 | 2443051801 | 0 |
| 145.158.3.26 | 2443051802 | 0 |
| 145.158.3.27 | 2443051803 | 0 |
| 145.158.3.28 | 2443051804 | 0 |
| 145.158.3.29 | 2443051805 | 0 |
| 145.158.3.30 | 2443051806 | 0 |
| 145.158.3.31 | 2443051807 | 0 |
| 145.158.3.32 | 2443051808 | 0 |
| 145.158.3.33 | 2443051809 | 0 |
| 145.158.3.34 | 2443051810 | 0 |
| 145.158.3.35 | 2443051811 | 0 |
| 145.158.3.36 | 2443051812 | 0 |
| 145.158.3.37 | 2443051813 | 0 |
| 145.158.3.38 | 2443051814 | 0 |
| 145.158.3.39 | 2443051815 | 0 |
| 145.158.3.40 | 2443051816 | 0 |
| 145.158.3.41 | 2443051817 | 0 |
| 145.158.3.42 | 2443051818 | 0 |
| 145.158.3.43 | 2443051819 | 0 |
| 145.158.3.44 | 2443051820 | 0 |
| 145.158.3.45 | 2443051821 | 0 |
| 145.158.3.46 | 2443051822 | 0 |
| 145.158.3.47 | 2443051823 | 0 |
| 145.158.3.48 | 2443051824 | 0 |
| 145.158.3.49 | 2443051825 | 0 |
| 145.158.3.50 | 2443051826 | 0 |
| 145.158.3.51 | 2443051827 | 0 |
| 145.158.3.52 | 2443051828 | 0 |
| 145.158.3.53 | 2443051829 | 0 |
| 145.158.3.54 | 2443051830 | 0 |
| 145.158.3.55 | 2443051831 | 0 |
| 145.158.3.56 | 2443051832 | 0 |
| 145.158.3.57 | 2443051833 | 0 |
| 145.158.3.58 | 2443051834 | 0 |
| 145.158.3.59 | 2443051835 | 0 |
| 145.158.3.60 | 2443051836 | 0 |
| 145.158.3.61 | 2443051837 | 0 |
| 145.158.3.62 | 2443051838 | 0 |
| 145.158.3.63 | 2443051839 | 0 |
| 145.158.3.64 | 2443051840 | 0 |
| 145.158.3.65 | 2443051841 | 0 |
| 145.158.3.66 | 2443051842 | 0 |
| 145.158.3.67 | 2443051843 | 0 |
| 145.158.3.68 | 2443051844 | 0 |
| 145.158.3.69 | 2443051845 | 0 |
| 145.158.3.70 | 2443051846 | 0 |
| 145.158.3.71 | 2443051847 | 0 |
| 145.158.3.72 | 2443051848 | 0 |
| 145.158.3.73 | 2443051849 | 0 |
| 145.158.3.74 | 2443051850 | 0 |
| 145.158.3.75 | 2443051851 | 0 |
| 145.158.3.76 | 2443051852 | 0 |
| 145.158.3.77 | 2443051853 | 0 |
| 145.158.3.78 | 2443051854 | 0 |
| 145.158.3.79 | 2443051855 | 0 |
| 145.158.3.80 | 2443051856 | 0 |
| 145.158.3.81 | 2443051857 | 0 |
| 145.158.3.82 | 2443051858 | 0 |
| 145.158.3.83 | 2443051859 | 0 |
| 145.158.3.84 | 2443051860 | 0 |
| 145.158.3.85 | 2443051861 | 0 |