Les adresses IP débutant par 145.9.139 sont fournies par SURFnet, elles appartiennent au CIDR (Classless Inter-Domain Routing) 145.9.0.0/16, le bloc IP comprant les adresses de 145.9.0.0 à 145.9.255.255). Le numéro de système autonome (ASN) est 1103.
| ASN | 1103 |
| IP commençant par | 145.9.0.0 |
| IP se terminant par | 145.9.255.255 |
| Nom ASN | SURFnet |
| CDIR | 145.9.0.0/16 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 27/04/2020 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Utrecht | 52,0908 | 5,1222 | 2020-04-27 |
| MaxMind | NL | Pays-Bas | - | Utrecht | 52,0938 | 5,1191 | 2020-04-27 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.9.139.0 | 2433321728 | 0 |
| 145.9.139.1 | 2433321729 | 0 |
| 145.9.139.2 | 2433321730 | 0 |
| 145.9.139.3 | 2433321731 | 0 |
| 145.9.139.4 | 2433321732 | 0 |
| 145.9.139.5 | 2433321733 | 0 |
| 145.9.139.6 | 2433321734 | 0 |
| 145.9.139.7 | 2433321735 | 0 |
| 145.9.139.8 | 2433321736 | 0 |
| 145.9.139.9 | 2433321737 | 0 |
| 145.9.139.10 | 2433321738 | 0 |
| 145.9.139.11 | 2433321739 | 0 |
| 145.9.139.12 | 2433321740 | 0 |
| 145.9.139.13 | 2433321741 | 0 |
| 145.9.139.14 | 2433321742 | 0 |
| 145.9.139.15 | 2433321743 | 0 |
| 145.9.139.16 | 2433321744 | 0 |
| 145.9.139.17 | 2433321745 | 0 |
| 145.9.139.18 | 2433321746 | 0 |
| 145.9.139.19 | 2433321747 | 0 |
| 145.9.139.20 | 2433321748 | 0 |
| 145.9.139.21 | 2433321749 | 0 |
| 145.9.139.22 | 2433321750 | 0 |
| 145.9.139.23 | 2433321751 | 0 |
| 145.9.139.24 | 2433321752 | 0 |
| 145.9.139.25 | 2433321753 | 0 |
| 145.9.139.26 | 2433321754 | 0 |
| 145.9.139.27 | 2433321755 | 0 |
| 145.9.139.28 | 2433321756 | 0 |
| 145.9.139.29 | 2433321757 | 0 |
| 145.9.139.30 | 2433321758 | 0 |
| 145.9.139.31 | 2433321759 | 0 |
| 145.9.139.32 | 2433321760 | 0 |
| 145.9.139.33 | 2433321761 | 0 |
| 145.9.139.34 | 2433321762 | 0 |
| 145.9.139.35 | 2433321763 | 0 |
| 145.9.139.36 | 2433321764 | 0 |
| 145.9.139.37 | 2433321765 | 0 |
| 145.9.139.38 | 2433321766 | 0 |
| 145.9.139.39 | 2433321767 | 0 |
| 145.9.139.40 | 2433321768 | 0 |
| 145.9.139.41 | 2433321769 | 0 |
| 145.9.139.42 | 2433321770 | 0 |
| 145.9.139.43 | 2433321771 | 0 |
| 145.9.139.44 | 2433321772 | 0 |
| 145.9.139.45 | 2433321773 | 0 |
| 145.9.139.46 | 2433321774 | 0 |
| 145.9.139.47 | 2433321775 | 0 |
| 145.9.139.48 | 2433321776 | 0 |
| 145.9.139.49 | 2433321777 | 0 |
| 145.9.139.50 | 2433321778 | 0 |
| 145.9.139.51 | 2433321779 | 0 |
| 145.9.139.52 | 2433321780 | 0 |
| 145.9.139.53 | 2433321781 | 0 |
| 145.9.139.54 | 2433321782 | 0 |
| 145.9.139.55 | 2433321783 | 0 |
| 145.9.139.56 | 2433321784 | 0 |
| 145.9.139.57 | 2433321785 | 0 |
| 145.9.139.58 | 2433321786 | 0 |
| 145.9.139.59 | 2433321787 | 0 |
| 145.9.139.60 | 2433321788 | 0 |
| 145.9.139.61 | 2433321789 | 0 |
| 145.9.139.62 | 2433321790 | 0 |
| 145.9.139.63 | 2433321791 | 0 |
| 145.9.139.64 | 2433321792 | 0 |
| 145.9.139.65 | 2433321793 | 0 |
| 145.9.139.66 | 2433321794 | 0 |
| 145.9.139.67 | 2433321795 | 0 |
| 145.9.139.68 | 2433321796 | 0 |
| 145.9.139.69 | 2433321797 | 0 |
| 145.9.139.70 | 2433321798 | 0 |
| 145.9.139.71 | 2433321799 | 0 |
| 145.9.139.72 | 2433321800 | 0 |
| 145.9.139.73 | 2433321801 | 0 |
| 145.9.139.74 | 2433321802 | 0 |
| 145.9.139.75 | 2433321803 | 0 |
| 145.9.139.76 | 2433321804 | 0 |
| 145.9.139.77 | 2433321805 | 0 |
| 145.9.139.78 | 2433321806 | 0 |
| 145.9.139.79 | 2433321807 | 0 |
| 145.9.139.80 | 2433321808 | 0 |
| 145.9.139.81 | 2433321809 | 0 |
| 145.9.139.82 | 2433321810 | 0 |
| 145.9.139.83 | 2433321811 | 0 |
| 145.9.139.84 | 2433321812 | 0 |
| 145.9.139.85 | 2433321813 | 0 |