Les adresses IP débutant par 145.80.73 sont fournies par SURFnet, elles appartiennent au CIDR (Classless Inter-Domain Routing) 145.81.0.0/16, le bloc IP comprant les adresses de 145.81.0.0 à 145.81.255.255). Le numéro de système autonome (ASN) est 1103.
| ASN | 1103 |
| IP commençant par | 145.81.0.0 |
| IP se terminant par | 145.81.255.255 |
| Nom ASN | SURFnet |
| CDIR | 145.81.0.0/16 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 18/09/2019 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Den Haag | 52,0767 | 4,2986 | 2019-09-17 |
| MaxMind | NL | Pays-Bas | - | Delft | 52,0186 | 4,3782 | 2019-09-17 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.80.73.0 | 2437957888 | 0 |
| 145.80.73.1 | 2437957889 | 0 |
| 145.80.73.2 | 2437957890 | 0 |
| 145.80.73.3 | 2437957891 | 0 |
| 145.80.73.4 | 2437957892 | 0 |
| 145.80.73.5 | 2437957893 | 0 |
| 145.80.73.6 | 2437957894 | 0 |
| 145.80.73.7 | 2437957895 | 0 |
| 145.80.73.8 | 2437957896 | 0 |
| 145.80.73.9 | 2437957897 | 0 |
| 145.80.73.10 | 2437957898 | 0 |
| 145.80.73.11 | 2437957899 | 0 |
| 145.80.73.12 | 2437957900 | 0 |
| 145.80.73.13 | 2437957901 | 0 |
| 145.80.73.14 | 2437957902 | 0 |
| 145.80.73.15 | 2437957903 | 0 |
| 145.80.73.16 | 2437957904 | 0 |
| 145.80.73.17 | 2437957905 | 0 |
| 145.80.73.18 | 2437957906 | 0 |
| 145.80.73.19 | 2437957907 | 0 |
| 145.80.73.20 | 2437957908 | 0 |
| 145.80.73.21 | 2437957909 | 0 |
| 145.80.73.22 | 2437957910 | 0 |
| 145.80.73.23 | 2437957911 | 0 |
| 145.80.73.24 | 2437957912 | 0 |
| 145.80.73.25 | 2437957913 | 0 |
| 145.80.73.26 | 2437957914 | 0 |
| 145.80.73.27 | 2437957915 | 0 |
| 145.80.73.28 | 2437957916 | 0 |
| 145.80.73.29 | 2437957917 | 0 |
| 145.80.73.30 | 2437957918 | 0 |
| 145.80.73.31 | 2437957919 | 0 |
| 145.80.73.32 | 2437957920 | 0 |
| 145.80.73.33 | 2437957921 | 0 |
| 145.80.73.34 | 2437957922 | 0 |
| 145.80.73.35 | 2437957923 | 0 |
| 145.80.73.36 | 2437957924 | 0 |
| 145.80.73.37 | 2437957925 | 0 |
| 145.80.73.38 | 2437957926 | 0 |
| 145.80.73.39 | 2437957927 | 0 |
| 145.80.73.40 | 2437957928 | 0 |
| 145.80.73.41 | 2437957929 | 0 |
| 145.80.73.42 | 2437957930 | 0 |
| 145.80.73.43 | 2437957931 | 0 |
| 145.80.73.44 | 2437957932 | 0 |
| 145.80.73.45 | 2437957933 | 0 |
| 145.80.73.46 | 2437957934 | 0 |
| 145.80.73.47 | 2437957935 | 0 |
| 145.80.73.48 | 2437957936 | 0 |
| 145.80.73.49 | 2437957937 | 0 |
| 145.80.73.50 | 2437957938 | 0 |
| 145.80.73.51 | 2437957939 | 0 |
| 145.80.73.52 | 2437957940 | 0 |
| 145.80.73.53 | 2437957941 | 0 |
| 145.80.73.54 | 2437957942 | 0 |
| 145.80.73.55 | 2437957943 | 0 |
| 145.80.73.56 | 2437957944 | 0 |
| 145.80.73.57 | 2437957945 | 0 |
| 145.80.73.58 | 2437957946 | 0 |
| 145.80.73.59 | 2437957947 | 0 |
| 145.80.73.60 | 2437957948 | 0 |
| 145.80.73.61 | 2437957949 | 0 |
| 145.80.73.62 | 2437957950 | 0 |
| 145.80.73.63 | 2437957951 | 0 |
| 145.80.73.64 | 2437957952 | 0 |
| 145.80.73.65 | 2437957953 | 0 |
| 145.80.73.66 | 2437957954 | 0 |
| 145.80.73.67 | 2437957955 | 0 |
| 145.80.73.68 | 2437957956 | 0 |
| 145.80.73.69 | 2437957957 | 0 |
| 145.80.73.70 | 2437957958 | 0 |
| 145.80.73.71 | 2437957959 | 0 |
| 145.80.73.72 | 2437957960 | 0 |
| 145.80.73.73 | 2437957961 | 0 |
| 145.80.73.74 | 2437957962 | 0 |
| 145.80.73.75 | 2437957963 | 0 |
| 145.80.73.76 | 2437957964 | 0 |
| 145.80.73.77 | 2437957965 | 0 |
| 145.80.73.78 | 2437957966 | 0 |
| 145.80.73.79 | 2437957967 | 0 |
| 145.80.73.80 | 2437957968 | 0 |
| 145.80.73.81 | 2437957969 | 0 |
| 145.80.73.82 | 2437957970 | 0 |
| 145.80.73.83 | 2437957971 | 0 |
| 145.80.73.84 | 2437957972 | 0 |
| 145.80.73.85 | 2437957973 | 0 |