Les adresses IP débutant par 137.55.73 sont fournies par SURFnet, elles appartiennent au CIDR (Classless Inter-Domain Routing) 137.56.0.0/16, le bloc IP comprant les adresses de 137.56.0.0 à 137.56.255.255). Le numéro de système autonome (ASN) est 1103.
| ASN | 1103 |
| IP commençant par | 137.56.0.0 |
| IP se terminant par | 137.56.255.255 |
| Nom ASN | SURFnet |
| CDIR | 137.56.0.0/16 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 23/05/2019 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Tilburg | 51,5555 | 5,0913 | 2019-05-22 |
| MaxMind | NL | Pays-Bas | - | Tilburg | 51,5769 | 5,1063 | 2019-05-22 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 137.55.73.0 | 2302101760 | 0 |
| 137.55.73.1 | 2302101761 | 0 |
| 137.55.73.2 | 2302101762 | 0 |
| 137.55.73.3 | 2302101763 | 0 |
| 137.55.73.4 | 2302101764 | 0 |
| 137.55.73.5 | 2302101765 | 0 |
| 137.55.73.6 | 2302101766 | 0 |
| 137.55.73.7 | 2302101767 | 0 |
| 137.55.73.8 | 2302101768 | 0 |
| 137.55.73.9 | 2302101769 | 0 |
| 137.55.73.10 | 2302101770 | 0 |
| 137.55.73.11 | 2302101771 | 0 |
| 137.55.73.12 | 2302101772 | 0 |
| 137.55.73.13 | 2302101773 | 0 |
| 137.55.73.14 | 2302101774 | 0 |
| 137.55.73.15 | 2302101775 | 0 |
| 137.55.73.16 | 2302101776 | 0 |
| 137.55.73.17 | 2302101777 | 0 |
| 137.55.73.18 | 2302101778 | 0 |
| 137.55.73.19 | 2302101779 | 0 |
| 137.55.73.20 | 2302101780 | 0 |
| 137.55.73.21 | 2302101781 | 0 |
| 137.55.73.22 | 2302101782 | 0 |
| 137.55.73.23 | 2302101783 | 0 |
| 137.55.73.24 | 2302101784 | 0 |
| 137.55.73.25 | 2302101785 | 0 |
| 137.55.73.26 | 2302101786 | 0 |
| 137.55.73.27 | 2302101787 | 0 |
| 137.55.73.28 | 2302101788 | 0 |
| 137.55.73.29 | 2302101789 | 0 |
| 137.55.73.30 | 2302101790 | 0 |
| 137.55.73.31 | 2302101791 | 0 |
| 137.55.73.32 | 2302101792 | 0 |
| 137.55.73.33 | 2302101793 | 0 |
| 137.55.73.34 | 2302101794 | 0 |
| 137.55.73.35 | 2302101795 | 0 |
| 137.55.73.36 | 2302101796 | 0 |
| 137.55.73.37 | 2302101797 | 0 |
| 137.55.73.38 | 2302101798 | 0 |
| 137.55.73.39 | 2302101799 | 0 |
| 137.55.73.40 | 2302101800 | 0 |
| 137.55.73.41 | 2302101801 | 0 |
| 137.55.73.42 | 2302101802 | 0 |
| 137.55.73.43 | 2302101803 | 0 |
| 137.55.73.44 | 2302101804 | 0 |
| 137.55.73.45 | 2302101805 | 0 |
| 137.55.73.46 | 2302101806 | 0 |
| 137.55.73.47 | 2302101807 | 0 |
| 137.55.73.48 | 2302101808 | 0 |
| 137.55.73.49 | 2302101809 | 0 |
| 137.55.73.50 | 2302101810 | 0 |
| 137.55.73.51 | 2302101811 | 0 |
| 137.55.73.52 | 2302101812 | 0 |
| 137.55.73.53 | 2302101813 | 0 |
| 137.55.73.54 | 2302101814 | 0 |
| 137.55.73.55 | 2302101815 | 0 |
| 137.55.73.56 | 2302101816 | 0 |
| 137.55.73.57 | 2302101817 | 0 |
| 137.55.73.58 | 2302101818 | 0 |
| 137.55.73.59 | 2302101819 | 0 |
| 137.55.73.60 | 2302101820 | 0 |
| 137.55.73.61 | 2302101821 | 0 |
| 137.55.73.62 | 2302101822 | 0 |
| 137.55.73.63 | 2302101823 | 0 |
| 137.55.73.64 | 2302101824 | 0 |
| 137.55.73.65 | 2302101825 | 0 |
| 137.55.73.66 | 2302101826 | 0 |
| 137.55.73.67 | 2302101827 | 0 |
| 137.55.73.68 | 2302101828 | 0 |
| 137.55.73.69 | 2302101829 | 0 |
| 137.55.73.70 | 2302101830 | 0 |
| 137.55.73.71 | 2302101831 | 0 |
| 137.55.73.72 | 2302101832 | 0 |
| 137.55.73.73 | 2302101833 | 0 |
| 137.55.73.74 | 2302101834 | 0 |
| 137.55.73.75 | 2302101835 | 0 |
| 137.55.73.76 | 2302101836 | 0 |
| 137.55.73.77 | 2302101837 | 0 |
| 137.55.73.78 | 2302101838 | 0 |
| 137.55.73.79 | 2302101839 | 0 |
| 137.55.73.80 | 2302101840 | 0 |
| 137.55.73.81 | 2302101841 | 0 |
| 137.55.73.82 | 2302101842 | 0 |
| 137.55.73.83 | 2302101843 | 0 |
| 137.55.73.84 | 2302101844 | 0 |
| 137.55.73.85 | 2302101845 | 0 |