Les adresses IP débutant par 145.158.9 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 | 16/10/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Utrecht | 52,0908 | 5,1222 | 2017-10-15 |
| MaxMind | NL | Pays-Bas | - | Utrecht | 52,0938 | 5,1191 | 2017-10-15 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.158.9.0 | 2443053312 | 0 |
| 145.158.9.1 | 2443053313 | 0 |
| 145.158.9.2 | 2443053314 | 0 |
| 145.158.9.3 | 2443053315 | 0 |
| 145.158.9.4 | 2443053316 | 0 |
| 145.158.9.5 | 2443053317 | 0 |
| 145.158.9.6 | 2443053318 | 0 |
| 145.158.9.7 | 2443053319 | 0 |
| 145.158.9.8 | 2443053320 | 0 |
| 145.158.9.9 | 2443053321 | 0 |
| 145.158.9.10 | 2443053322 | 0 |
| 145.158.9.11 | 2443053323 | 0 |
| 145.158.9.12 | 2443053324 | 0 |
| 145.158.9.13 | 2443053325 | 0 |
| 145.158.9.14 | 2443053326 | 0 |
| 145.158.9.15 | 2443053327 | 0 |
| 145.158.9.16 | 2443053328 | 0 |
| 145.158.9.17 | 2443053329 | 0 |
| 145.158.9.18 | 2443053330 | 0 |
| 145.158.9.19 | 2443053331 | 0 |
| 145.158.9.20 | 2443053332 | 0 |
| 145.158.9.21 | 2443053333 | 0 |
| 145.158.9.22 | 2443053334 | 0 |
| 145.158.9.23 | 2443053335 | 0 |
| 145.158.9.24 | 2443053336 | 0 |
| 145.158.9.25 | 2443053337 | 0 |
| 145.158.9.26 | 2443053338 | 0 |
| 145.158.9.27 | 2443053339 | 0 |
| 145.158.9.28 | 2443053340 | 0 |
| 145.158.9.29 | 2443053341 | 0 |
| 145.158.9.30 | 2443053342 | 0 |
| 145.158.9.31 | 2443053343 | 0 |
| 145.158.9.32 | 2443053344 | 0 |
| 145.158.9.33 | 2443053345 | 0 |
| 145.158.9.34 | 2443053346 | 0 |
| 145.158.9.35 | 2443053347 | 0 |
| 145.158.9.36 | 2443053348 | 0 |
| 145.158.9.37 | 2443053349 | 0 |
| 145.158.9.38 | 2443053350 | 0 |
| 145.158.9.39 | 2443053351 | 0 |
| 145.158.9.40 | 2443053352 | 0 |
| 145.158.9.41 | 2443053353 | 0 |
| 145.158.9.42 | 2443053354 | 0 |
| 145.158.9.43 | 2443053355 | 0 |
| 145.158.9.44 | 2443053356 | 0 |
| 145.158.9.45 | 2443053357 | 0 |
| 145.158.9.46 | 2443053358 | 0 |
| 145.158.9.47 | 2443053359 | 0 |
| 145.158.9.48 | 2443053360 | 0 |
| 145.158.9.49 | 2443053361 | 0 |
| 145.158.9.50 | 2443053362 | 0 |
| 145.158.9.51 | 2443053363 | 0 |
| 145.158.9.52 | 2443053364 | 0 |
| 145.158.9.53 | 2443053365 | 0 |
| 145.158.9.54 | 2443053366 | 0 |
| 145.158.9.55 | 2443053367 | 0 |
| 145.158.9.56 | 2443053368 | 0 |
| 145.158.9.57 | 2443053369 | 0 |
| 145.158.9.58 | 2443053370 | 0 |
| 145.158.9.59 | 2443053371 | 0 |
| 145.158.9.60 | 2443053372 | 0 |
| 145.158.9.61 | 2443053373 | 0 |
| 145.158.9.62 | 2443053374 | 0 |
| 145.158.9.63 | 2443053375 | 0 |
| 145.158.9.64 | 2443053376 | 0 |
| 145.158.9.65 | 2443053377 | 0 |
| 145.158.9.66 | 2443053378 | 0 |
| 145.158.9.67 | 2443053379 | 0 |
| 145.158.9.68 | 2443053380 | 0 |
| 145.158.9.69 | 2443053381 | 0 |
| 145.158.9.70 | 2443053382 | 0 |
| 145.158.9.71 | 2443053383 | 0 |
| 145.158.9.72 | 2443053384 | 0 |
| 145.158.9.73 | 2443053385 | 0 |
| 145.158.9.74 | 2443053386 | 0 |
| 145.158.9.75 | 2443053387 | 0 |
| 145.158.9.76 | 2443053388 | 0 |
| 145.158.9.77 | 2443053389 | 0 |
| 145.158.9.78 | 2443053390 | 0 |
| 145.158.9.79 | 2443053391 | 0 |
| 145.158.9.80 | 2443053392 | 0 |
| 145.158.9.81 | 2443053393 | 0 |
| 145.158.9.82 | 2443053394 | 0 |
| 145.158.9.83 | 2443053395 | 0 |
| 145.158.9.84 | 2443053396 | 0 |
| 145.158.9.85 | 2443053397 | 0 |