Les adresses IP débutant par 145.74.73 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 | 16/05/2019 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Apeldoorn | 52,21 | 5,9694 | 2019-05-15 |
| MaxMind | NL | Pays-Bas | - | Arnhem | 51,9798 | 5,9256 | 2019-05-15 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.74.73.0 | 2437564672 | 0 |
| 145.74.73.1 | 2437564673 | 0 |
| 145.74.73.2 | 2437564674 | 0 |
| 145.74.73.3 | 2437564675 | 0 |
| 145.74.73.4 | 2437564676 | 0 |
| 145.74.73.5 | 2437564677 | 0 |
| 145.74.73.6 | 2437564678 | 0 |
| 145.74.73.7 | 2437564679 | 0 |
| 145.74.73.8 | 2437564680 | 0 |
| 145.74.73.9 | 2437564681 | 0 |
| 145.74.73.10 | 2437564682 | 0 |
| 145.74.73.11 | 2437564683 | 0 |
| 145.74.73.12 | 2437564684 | 0 |
| 145.74.73.13 | 2437564685 | 0 |
| 145.74.73.14 | 2437564686 | 0 |
| 145.74.73.15 | 2437564687 | 0 |
| 145.74.73.16 | 2437564688 | 0 |
| 145.74.73.17 | 2437564689 | 0 |
| 145.74.73.18 | 2437564690 | 0 |
| 145.74.73.19 | 2437564691 | 0 |
| 145.74.73.20 | 2437564692 | 0 |
| 145.74.73.21 | 2437564693 | 0 |
| 145.74.73.22 | 2437564694 | 0 |
| 145.74.73.23 | 2437564695 | 0 |
| 145.74.73.24 | 2437564696 | 0 |
| 145.74.73.25 | 2437564697 | 0 |
| 145.74.73.26 | 2437564698 | 0 |
| 145.74.73.27 | 2437564699 | 0 |
| 145.74.73.28 | 2437564700 | 0 |
| 145.74.73.29 | 2437564701 | 0 |
| 145.74.73.30 | 2437564702 | 0 |
| 145.74.73.31 | 2437564703 | 0 |
| 145.74.73.32 | 2437564704 | 0 |
| 145.74.73.33 | 2437564705 | 0 |
| 145.74.73.34 | 2437564706 | 0 |
| 145.74.73.35 | 2437564707 | 0 |
| 145.74.73.36 | 2437564708 | 0 |
| 145.74.73.37 | 2437564709 | 0 |
| 145.74.73.38 | 2437564710 | 0 |
| 145.74.73.39 | 2437564711 | 0 |
| 145.74.73.40 | 2437564712 | 0 |
| 145.74.73.41 | 2437564713 | 0 |
| 145.74.73.42 | 2437564714 | 0 |
| 145.74.73.43 | 2437564715 | 0 |
| 145.74.73.44 | 2437564716 | 0 |
| 145.74.73.45 | 2437564717 | 0 |
| 145.74.73.46 | 2437564718 | 0 |
| 145.74.73.47 | 2437564719 | 0 |
| 145.74.73.48 | 2437564720 | 0 |
| 145.74.73.49 | 2437564721 | 0 |
| 145.74.73.50 | 2437564722 | 0 |
| 145.74.73.51 | 2437564723 | 0 |
| 145.74.73.52 | 2437564724 | 0 |
| 145.74.73.53 | 2437564725 | 0 |
| 145.74.73.54 | 2437564726 | 0 |
| 145.74.73.55 | 2437564727 | 0 |
| 145.74.73.56 | 2437564728 | 0 |
| 145.74.73.57 | 2437564729 | 0 |
| 145.74.73.58 | 2437564730 | 0 |
| 145.74.73.59 | 2437564731 | 0 |
| 145.74.73.60 | 2437564732 | 0 |
| 145.74.73.61 | 2437564733 | 0 |
| 145.74.73.62 | 2437564734 | 0 |
| 145.74.73.63 | 2437564735 | 0 |
| 145.74.73.64 | 2437564736 | 0 |
| 145.74.73.65 | 2437564737 | 0 |
| 145.74.73.66 | 2437564738 | 0 |
| 145.74.73.67 | 2437564739 | 0 |
| 145.74.73.68 | 2437564740 | 0 |
| 145.74.73.69 | 2437564741 | 0 |
| 145.74.73.70 | 2437564742 | 0 |
| 145.74.73.71 | 2437564743 | 0 |
| 145.74.73.72 | 2437564744 | 0 |
| 145.74.73.73 | 2437564745 | 0 |
| 145.74.73.74 | 2437564746 | 0 |
| 145.74.73.75 | 2437564747 | 0 |
| 145.74.73.76 | 2437564748 | 0 |
| 145.74.73.77 | 2437564749 | 0 |
| 145.74.73.78 | 2437564750 | 0 |
| 145.74.73.79 | 2437564751 | 0 |
| 145.74.73.80 | 2437564752 | 0 |
| 145.74.73.81 | 2437564753 | 0 |
| 145.74.73.82 | 2437564754 | 0 |
| 145.74.73.83 | 2437564755 | 0 |
| 145.74.73.84 | 2437564756 | 0 |
| 145.74.73.85 | 2437564757 | 0 |