L'indirizzo IP 145.168.4 è fornito da SURFnet, che è di proprietà del CIDR (Classless Inter-Domain Routing) 145.128.0.0/10, IP tra 145.128.0.0 a 145.191.255.255 ). Il numero di sistema autonomo (ASN) è 1103.
| ASN | 1103 |
| IP inizia con | 145.128.0.0 |
| IP finale con | 145.191.255.255 |
| ASN Nome | SURFnet |
| CDIR | 145.128.0.0/10 |
| IP numerico | |
| Registe | ripencc |
| Ultimo aggiornamento | 16/03/2018 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | NL | Netherlands | - | Utrecht | 52,0908 | 5,1222 | 2018-03-15 |
| MaxMind | NL | Netherlands | - | Utrecht | 52,0938 | 5,1191 | 2018-03-15 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.168.4.0 | 2443707392 | 0 |
| 145.168.4.1 | 2443707393 | 0 |
| 145.168.4.2 | 2443707394 | 0 |
| 145.168.4.3 | 2443707395 | 0 |
| 145.168.4.4 | 2443707396 | 0 |
| 145.168.4.5 | 2443707397 | 0 |
| 145.168.4.6 | 2443707398 | 0 |
| 145.168.4.7 | 2443707399 | 0 |
| 145.168.4.8 | 2443707400 | 0 |
| 145.168.4.9 | 2443707401 | 0 |
| 145.168.4.10 | 2443707402 | 0 |
| 145.168.4.11 | 2443707403 | 0 |
| 145.168.4.12 | 2443707404 | 0 |
| 145.168.4.13 | 2443707405 | 0 |
| 145.168.4.14 | 2443707406 | 0 |
| 145.168.4.15 | 2443707407 | 0 |
| 145.168.4.16 | 2443707408 | 0 |
| 145.168.4.17 | 2443707409 | 0 |
| 145.168.4.18 | 2443707410 | 0 |
| 145.168.4.19 | 2443707411 | 0 |
| 145.168.4.20 | 2443707412 | 0 |
| 145.168.4.21 | 2443707413 | 0 |
| 145.168.4.22 | 2443707414 | 0 |
| 145.168.4.23 | 2443707415 | 0 |
| 145.168.4.24 | 2443707416 | 0 |
| 145.168.4.25 | 2443707417 | 0 |
| 145.168.4.26 | 2443707418 | 0 |
| 145.168.4.27 | 2443707419 | 0 |
| 145.168.4.28 | 2443707420 | 0 |
| 145.168.4.29 | 2443707421 | 0 |
| 145.168.4.30 | 2443707422 | 0 |
| 145.168.4.31 | 2443707423 | 0 |
| 145.168.4.32 | 2443707424 | 0 |
| 145.168.4.33 | 2443707425 | 0 |
| 145.168.4.34 | 2443707426 | 0 |
| 145.168.4.35 | 2443707427 | 0 |
| 145.168.4.36 | 2443707428 | 0 |
| 145.168.4.37 | 2443707429 | 0 |
| 145.168.4.38 | 2443707430 | 0 |
| 145.168.4.39 | 2443707431 | 0 |
| 145.168.4.40 | 2443707432 | 0 |
| 145.168.4.41 | 2443707433 | 0 |
| 145.168.4.42 | 2443707434 | 0 |
| 145.168.4.43 | 2443707435 | 0 |
| 145.168.4.44 | 2443707436 | 0 |
| 145.168.4.45 | 2443707437 | 0 |
| 145.168.4.46 | 2443707438 | 0 |
| 145.168.4.47 | 2443707439 | 0 |
| 145.168.4.48 | 2443707440 | 0 |
| 145.168.4.49 | 2443707441 | 0 |
| 145.168.4.50 | 2443707442 | 0 |
| 145.168.4.51 | 2443707443 | 0 |
| 145.168.4.52 | 2443707444 | 0 |
| 145.168.4.53 | 2443707445 | 0 |
| 145.168.4.54 | 2443707446 | 0 |
| 145.168.4.55 | 2443707447 | 0 |
| 145.168.4.56 | 2443707448 | 0 |
| 145.168.4.57 | 2443707449 | 0 |
| 145.168.4.58 | 2443707450 | 0 |
| 145.168.4.59 | 2443707451 | 0 |
| 145.168.4.60 | 2443707452 | 0 |
| 145.168.4.61 | 2443707453 | 0 |
| 145.168.4.62 | 2443707454 | 0 |
| 145.168.4.63 | 2443707455 | 0 |
| 145.168.4.64 | 2443707456 | 0 |
| 145.168.4.65 | 2443707457 | 0 |
| 145.168.4.66 | 2443707458 | 0 |
| 145.168.4.67 | 2443707459 | 0 |
| 145.168.4.68 | 2443707460 | 0 |
| 145.168.4.69 | 2443707461 | 0 |
| 145.168.4.70 | 2443707462 | 0 |
| 145.168.4.71 | 2443707463 | 0 |
| 145.168.4.72 | 2443707464 | 0 |
| 145.168.4.73 | 2443707465 | 0 |
| 145.168.4.74 | 2443707466 | 0 |
| 145.168.4.75 | 2443707467 | 0 |
| 145.168.4.76 | 2443707468 | 0 |
| 145.168.4.77 | 2443707469 | 0 |
| 145.168.4.78 | 2443707470 | 0 |
| 145.168.4.79 | 2443707471 | 0 |
| 145.168.4.80 | 2443707472 | 0 |
| 145.168.4.81 | 2443707473 | 0 |
| 145.168.4.82 | 2443707474 | 0 |
| 145.168.4.83 | 2443707475 | 0 |
| 145.168.4.84 | 2443707476 | 0 |
| 145.168.4.85 | 2443707477 | 0 |