Les adresses IP débutant par 145.131.7 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 | 31/12/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Utrecht | 52,0908 | 5,1222 | 2017-12-31 |
| MaxMind | NL | Pays-Bas | - | - | 52,3824 | 4,8995 | 2017-12-31 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.131.7.0 | 2441283328 | 0 |
| 145.131.7.1 | 2441283329 | 0 |
| 145.131.7.2 | 2441283330 | 0 |
| 145.131.7.3 | 2441283331 | 0 |
| 145.131.7.4 | 2441283332 | 0 |
| 145.131.7.5 | 2441283333 | 0 |
| 145.131.7.6 | 2441283334 | 0 |
| 145.131.7.7 | 2441283335 | 0 |
| 145.131.7.8 | 2441283336 | 0 |
| 145.131.7.9 | 2441283337 | 0 |
| 145.131.7.10 | 2441283338 | 0 |
| 145.131.7.11 | 2441283339 | 0 |
| 145.131.7.12 | 2441283340 | 0 |
| 145.131.7.13 | 2441283341 | 0 |
| 145.131.7.14 | 2441283342 | 0 |
| 145.131.7.15 | 2441283343 | 0 |
| 145.131.7.16 | 2441283344 | 0 |
| 145.131.7.17 | 2441283345 | 0 |
| 145.131.7.18 | 2441283346 | 0 |
| 145.131.7.19 | 2441283347 | 0 |
| 145.131.7.20 | 2441283348 | 0 |
| 145.131.7.21 | 2441283349 | 0 |
| 145.131.7.22 | 2441283350 | 0 |
| 145.131.7.23 | 2441283351 | 0 |
| 145.131.7.24 | 2441283352 | 0 |
| 145.131.7.25 | 2441283353 | 0 |
| 145.131.7.26 | 2441283354 | 0 |
| 145.131.7.27 | 2441283355 | 0 |
| 145.131.7.28 | 2441283356 | 0 |
| 145.131.7.29 | 2441283357 | 0 |
| 145.131.7.30 | 2441283358 | 0 |
| 145.131.7.31 | 2441283359 | 0 |
| 145.131.7.32 | 2441283360 | 0 |
| 145.131.7.33 | 2441283361 | 0 |
| 145.131.7.34 | 2441283362 | 0 |
| 145.131.7.35 | 2441283363 | 0 |
| 145.131.7.36 | 2441283364 | 0 |
| 145.131.7.37 | 2441283365 | 0 |
| 145.131.7.38 | 2441283366 | 0 |
| 145.131.7.39 | 2441283367 | 0 |
| 145.131.7.40 | 2441283368 | 0 |
| 145.131.7.41 | 2441283369 | 0 |
| 145.131.7.42 | 2441283370 | 0 |
| 145.131.7.43 | 2441283371 | 0 |
| 145.131.7.44 | 2441283372 | 0 |
| 145.131.7.45 | 2441283373 | 0 |
| 145.131.7.46 | 2441283374 | 0 |
| 145.131.7.47 | 2441283375 | 0 |
| 145.131.7.48 | 2441283376 | 0 |
| 145.131.7.49 | 2441283377 | 0 |
| 145.131.7.50 | 2441283378 | 0 |
| 145.131.7.51 | 2441283379 | 0 |
| 145.131.7.52 | 2441283380 | 0 |
| 145.131.7.53 | 2441283381 | 0 |
| 145.131.7.54 | 2441283382 | 0 |
| 145.131.7.55 | 2441283383 | 0 |
| 145.131.7.56 | 2441283384 | 0 |
| 145.131.7.57 | 2441283385 | 0 |
| 145.131.7.58 | 2441283386 | 0 |
| 145.131.7.59 | 2441283387 | 0 |
| 145.131.7.60 | 2441283388 | 0 |
| 145.131.7.61 | 2441283389 | 0 |
| 145.131.7.62 | 2441283390 | 0 |
| 145.131.7.63 | 2441283391 | 0 |
| 145.131.7.64 | 2441283392 | 0 |
| 145.131.7.65 | 2441283393 | 0 |
| 145.131.7.66 | 2441283394 | 0 |
| 145.131.7.67 | 2441283395 | 0 |
| 145.131.7.68 | 2441283396 | 0 |
| 145.131.7.69 | 2441283397 | 0 |
| 145.131.7.70 | 2441283398 | 0 |
| 145.131.7.71 | 2441283399 | 0 |
| 145.131.7.72 | 2441283400 | 0 |
| 145.131.7.73 | 2441283401 | 0 |
| 145.131.7.74 | 2441283402 | 0 |
| 145.131.7.75 | 2441283403 | 0 |
| 145.131.7.76 | 2441283404 | 0 |
| 145.131.7.77 | 2441283405 | 0 |
| 145.131.7.78 | 2441283406 | 0 |
| 145.131.7.79 | 2441283407 | 0 |
| 145.131.7.80 | 2441283408 | 0 |
| 145.131.7.81 | 2441283409 | 0 |
| 145.131.7.82 | 2441283410 | 0 |
| 145.131.7.83 | 2441283411 | 0 |
| 145.131.7.84 | 2441283412 | 0 |
| 145.131.7.85 | 2441283413 | 0 |