Les adresses IP débutant par 145.2.23 sont fournies par SURFnet, elles appartiennent au CIDR (Classless Inter-Domain Routing) 145.2.0.0/15, le bloc IP comprant les adresses de 145.2.0.0 à 145.3.255.255). Le numéro de système autonome (ASN) est 1103.
| ASN | 1103 |
| IP commençant par | 145.2.0.0 |
| IP se terminant par | 145.3.255.255 |
| Nom ASN | SURFnet |
| CDIR | 145.2.0.0/15 |
| IP numérique | |
| Registe | |
| Dernière mise à jour | 12/12/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Zwolle | 52,5125 | 6,0944 | 2018-12-11 |
| MaxMind | NL | Pays-Bas | - | - | 52,3824 | 4,8995 | 2018-12-11 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.2.23.0 | 2432833280 | 0 |
| 145.2.23.1 | 2432833281 | 0 |
| 145.2.23.2 | 2432833282 | 0 |
| 145.2.23.3 | 2432833283 | 0 |
| 145.2.23.4 | 2432833284 | 0 |
| 145.2.23.5 | 2432833285 | 0 |
| 145.2.23.6 | 2432833286 | 0 |
| 145.2.23.7 | 2432833287 | 0 |
| 145.2.23.8 | 2432833288 | 0 |
| 145.2.23.9 | 2432833289 | 0 |
| 145.2.23.10 | 2432833290 | 0 |
| 145.2.23.11 | 2432833291 | 0 |
| 145.2.23.12 | 2432833292 | 0 |
| 145.2.23.13 | 2432833293 | 0 |
| 145.2.23.14 | 2432833294 | 0 |
| 145.2.23.15 | 2432833295 | 0 |
| 145.2.23.16 | 2432833296 | 0 |
| 145.2.23.17 | 2432833297 | 0 |
| 145.2.23.18 | 2432833298 | 0 |
| 145.2.23.19 | 2432833299 | 0 |
| 145.2.23.20 | 2432833300 | 0 |
| 145.2.23.21 | 2432833301 | 0 |
| 145.2.23.22 | 2432833302 | 0 |
| 145.2.23.23 | 2432833303 | 0 |
| 145.2.23.24 | 2432833304 | 0 |
| 145.2.23.25 | 2432833305 | 0 |
| 145.2.23.26 | 2432833306 | 0 |
| 145.2.23.27 | 2432833307 | 0 |
| 145.2.23.28 | 2432833308 | 0 |
| 145.2.23.29 | 2432833309 | 0 |
| 145.2.23.30 | 2432833310 | 0 |
| 145.2.23.31 | 2432833311 | 0 |
| 145.2.23.32 | 2432833312 | 0 |
| 145.2.23.33 | 2432833313 | 0 |
| 145.2.23.34 | 2432833314 | 0 |
| 145.2.23.35 | 2432833315 | 0 |
| 145.2.23.36 | 2432833316 | 0 |
| 145.2.23.37 | 2432833317 | 0 |
| 145.2.23.38 | 2432833318 | 0 |
| 145.2.23.39 | 2432833319 | 0 |
| 145.2.23.40 | 2432833320 | 0 |
| 145.2.23.41 | 2432833321 | 0 |
| 145.2.23.42 | 2432833322 | 0 |
| 145.2.23.43 | 2432833323 | 0 |
| 145.2.23.44 | 2432833324 | 0 |
| 145.2.23.45 | 2432833325 | 0 |
| 145.2.23.46 | 2432833326 | 0 |
| 145.2.23.47 | 2432833327 | 0 |
| 145.2.23.48 | 2432833328 | 0 |
| 145.2.23.49 | 2432833329 | 0 |
| 145.2.23.50 | 2432833330 | 0 |
| 145.2.23.51 | 2432833331 | 0 |
| 145.2.23.52 | 2432833332 | 0 |
| 145.2.23.53 | 2432833333 | 0 |
| 145.2.23.54 | 2432833334 | 0 |
| 145.2.23.55 | 2432833335 | 0 |
| 145.2.23.56 | 2432833336 | 0 |
| 145.2.23.57 | 2432833337 | 0 |
| 145.2.23.58 | 2432833338 | 0 |
| 145.2.23.59 | 2432833339 | 0 |
| 145.2.23.60 | 2432833340 | 0 |
| 145.2.23.61 | 2432833341 | 0 |
| 145.2.23.62 | 2432833342 | 0 |
| 145.2.23.63 | 2432833343 | 0 |
| 145.2.23.64 | 2432833344 | 0 |
| 145.2.23.65 | 2432833345 | 0 |
| 145.2.23.66 | 2432833346 | 0 |
| 145.2.23.67 | 2432833347 | 0 |
| 145.2.23.68 | 2432833348 | 0 |
| 145.2.23.69 | 2432833349 | 0 |
| 145.2.23.70 | 2432833350 | 0 |
| 145.2.23.71 | 2432833351 | 0 |
| 145.2.23.72 | 2432833352 | 0 |
| 145.2.23.73 | 2432833353 | 0 |
| 145.2.23.74 | 2432833354 | 0 |
| 145.2.23.75 | 2432833355 | 0 |
| 145.2.23.76 | 2432833356 | 0 |
| 145.2.23.77 | 2432833357 | 0 |
| 145.2.23.78 | 2432833358 | 0 |
| 145.2.23.79 | 2432833359 | 0 |
| 145.2.23.80 | 2432833360 | 0 |
| 145.2.23.81 | 2432833361 | 0 |
| 145.2.23.82 | 2432833362 | 0 |
| 145.2.23.83 | 2432833363 | 0 |
| 145.2.23.84 | 2432833364 | 0 |
| 145.2.23.85 | 2432833365 | 0 |
| IP | Numerical IP | DNS |
| 145.2.23.86 | 2432833366 | 0 |
| 145.2.23.87 | 2432833367 | 0 |
| 145.2.23.88 | 2432833368 | 0 |
| 145.2.23.89 | 2432833369 | 0 |
| 145.2.23.90 | 2432833370 | 0 |
| 145.2.23.91 | 2432833371 | 0 |
| 145.2.23.92 | 2432833372 | 0 |
| 145.2.23.93 | 2432833373 | 0 |
| 145.2.23.94 | 2432833374 | 0 |
| 145.2.23.95 | 2432833375 | 0 |
| 145.2.23.96 | 2432833376 | 0 |
| 145.2.23.97 | 2432833377 | 0 |
| 145.2.23.98 | 2432833378 | 0 |
| 145.2.23.99 | 2432833379 | 0 |
| 145.2.23.100 | 2432833380 | 0 |
| 145.2.23.101 | 2432833381 | 0 |
| 145.2.23.102 | 2432833382 | 0 |
| 145.2.23.103 | 2432833383 | 0 |
| 145.2.23.104 | 2432833384 | 0 |
| 145.2.23.105 | 2432833385 | 0 |
| 145.2.23.106 | 2432833386 | 0 |
| 145.2.23.107 | 2432833387 | 0 |
| 145.2.23.108 | 2432833388 | 0 |
| 145.2.23.109 | 2432833389 | 0 |
| 145.2.23.110 | 2432833390 | 0 |
| 145.2.23.111 | 2432833391 | 0 |
| 145.2.23.112 | 2432833392 | 0 |
| 145.2.23.113 | 2432833393 | 0 |
| 145.2.23.114 | 2432833394 | 0 |
| 145.2.23.115 | 2432833395 | 0 |
| 145.2.23.116 | 2432833396 | 0 |
| 145.2.23.117 | 2432833397 | 0 |
| 145.2.23.118 | 2432833398 | 0 |
| 145.2.23.119 | 2432833399 | 0 |
| 145.2.23.120 | 2432833400 | 0 |
| 145.2.23.121 | 2432833401 | 0 |
| 145.2.23.122 | 2432833402 | 0 |
| 145.2.23.123 | 2432833403 | 0 |
| 145.2.23.124 | 2432833404 | 0 |
| 145.2.23.125 | 2432833405 | 0 |
| 145.2.23.126 | 2432833406 | 0 |
| 145.2.23.127 | 2432833407 | 0 |
| 145.2.23.128 | 2432833408 | 0 |
| 145.2.23.129 | 2432833409 | 0 |
| 145.2.23.130 | 2432833410 | 0 |
| 145.2.23.131 | 2432833411 | 0 |
| 145.2.23.132 | 2432833412 | 0 |
| 145.2.23.133 | 2432833413 | 0 |
| 145.2.23.134 | 2432833414 | 0 |
| 145.2.23.135 | 2432833415 | 0 |
| 145.2.23.136 | 2432833416 | 0 |
| 145.2.23.137 | 2432833417 | 0 |
| 145.2.23.138 | 2432833418 | 0 |
| 145.2.23.139 | 2432833419 | 0 |
| 145.2.23.140 | 2432833420 | 0 |
| 145.2.23.141 | 2432833421 | 0 |
| 145.2.23.142 | 2432833422 | 0 |
| 145.2.23.143 | 2432833423 | 0 |
| 145.2.23.144 | 2432833424 | 0 |
| 145.2.23.145 | 2432833425 | 0 |
| 145.2.23.146 | 2432833426 | 0 |
| 145.2.23.147 | 2432833427 | 0 |
| 145.2.23.148 | 2432833428 | 0 |
| 145.2.23.149 | 2432833429 | 0 |
| 145.2.23.150 | 2432833430 | 0 |
| 145.2.23.151 | 2432833431 | 0 |
| 145.2.23.152 | 2432833432 | 0 |
| 145.2.23.153 | 2432833433 | 0 |
| 145.2.23.154 | 2432833434 | 0 |
| 145.2.23.155 | 2432833435 | 0 |
| 145.2.23.156 | 2432833436 | 0 |
| 145.2.23.157 | 2432833437 | 0 |
| 145.2.23.158 | 2432833438 | 0 |
| 145.2.23.159 | 2432833439 | 0 |
| 145.2.23.160 | 2432833440 | 0 |
| 145.2.23.161 | 2432833441 | 0 |
| 145.2.23.162 | 2432833442 | 0 |
| 145.2.23.163 | 2432833443 | 0 |
| 145.2.23.164 | 2432833444 | 0 |
| 145.2.23.165 | 2432833445 | 0 |
| 145.2.23.166 | 2432833446 | 0 |
| 145.2.23.167 | 2432833447 | 0 |
| 145.2.23.168 | 2432833448 | 0 |
| 145.2.23.169 | 2432833449 | 0 |
| 145.2.23.170 | 2432833450 | 0 |
| 145.2.23.171 | 2432833451 | 0 |
| IP | Numerical IP | DNS |
| 145.2.23.172 | 2432833452 | 0 |
| 145.2.23.173 | 2432833453 | 0 |
| 145.2.23.174 | 2432833454 | 0 |
| 145.2.23.175 | 2432833455 | 0 |
| 145.2.23.176 | 2432833456 | 0 |
| 145.2.23.177 | 2432833457 | 0 |
| 145.2.23.178 | 2432833458 | 0 |
| 145.2.23.179 | 2432833459 | 0 |
| 145.2.23.180 | 2432833460 | 0 |
| 145.2.23.181 | 2432833461 | 0 |
| 145.2.23.182 | 2432833462 | 0 |
| 145.2.23.183 | 2432833463 | 0 |
| 145.2.23.184 | 2432833464 | 0 |
| 145.2.23.185 | 2432833465 | 0 |
| 145.2.23.186 | 2432833466 | 0 |
| 145.2.23.187 | 2432833467 | 0 |
| 145.2.23.188 | 2432833468 | 0 |
| 145.2.23.189 | 2432833469 | 0 |
| 145.2.23.190 | 2432833470 | 0 |
| 145.2.23.191 | 2432833471 | 0 |
| 145.2.23.192 | 2432833472 | 0 |
| 145.2.23.193 | 2432833473 | 0 |
| 145.2.23.194 | 2432833474 | 0 |
| 145.2.23.195 | 2432833475 | 0 |
| 145.2.23.196 | 2432833476 | 0 |
| 145.2.23.197 | 2432833477 | 0 |
| 145.2.23.198 | 2432833478 | 0 |
| 145.2.23.199 | 2432833479 | 0 |
| 145.2.23.200 | 2432833480 | 0 |
| 145.2.23.201 | 2432833481 | 0 |
| 145.2.23.202 | 2432833482 | 0 |
| 145.2.23.203 | 2432833483 | 0 |
| 145.2.23.204 | 2432833484 | 0 |
| 145.2.23.205 | 2432833485 | 0 |
| 145.2.23.206 | 2432833486 | 0 |
| 145.2.23.207 | 2432833487 | 0 |
| 145.2.23.208 | 2432833488 | 0 |
| 145.2.23.209 | 2432833489 | 0 |
| 145.2.23.210 | 2432833490 | 0 |
| 145.2.23.211 | 2432833491 | 0 |
| 145.2.23.212 | 2432833492 | 0 |
| 145.2.23.213 | 2432833493 | 0 |
| 145.2.23.214 | 2432833494 | 0 |
| 145.2.23.215 | 2432833495 | 0 |
| 145.2.23.216 | 2432833496 | 0 |
| 145.2.23.217 | 2432833497 | 0 |
| 145.2.23.218 | 2432833498 | 0 |
| 145.2.23.219 | 2432833499 | 0 |
| 145.2.23.220 | 2432833500 | 0 |
| 145.2.23.221 | 2432833501 | 0 |
| 145.2.23.222 | 2432833502 | 0 |
| 145.2.23.223 | 2432833503 | 0 |
| 145.2.23.224 | 2432833504 | 0 |
| 145.2.23.225 | 2432833505 | 0 |
| 145.2.23.226 | 2432833506 | 0 |
| 145.2.23.227 | 2432833507 | 0 |
| 145.2.23.228 | 2432833508 | 0 |
| 145.2.23.229 | 2432833509 | 0 |
| 145.2.23.230 | 2432833510 | 0 |
| 145.2.23.231 | 2432833511 | 0 |
| 145.2.23.232 | 2432833512 | 0 |
| 145.2.23.233 | 2432833513 | 0 |
| 145.2.23.234 | 2432833514 | 0 |
| 145.2.23.235 | 2432833515 | 0 |
| 145.2.23.236 | 2432833516 | 0 |
| 145.2.23.237 | 2432833517 | 0 |
| 145.2.23.238 | 2432833518 | 0 |
| 145.2.23.239 | 2432833519 | 0 |
| 145.2.23.240 | 2432833520 | 0 |
| 145.2.23.241 | 2432833521 | 0 |
| 145.2.23.242 | 2432833522 | 0 |
| 145.2.23.243 | 2432833523 | 0 |
| 145.2.23.244 | 2432833524 | 0 |
| 145.2.23.245 | 2432833525 | 0 |
| 145.2.23.246 | 2432833526 | 0 |
| 145.2.23.247 | 2432833527 | 0 |
| 145.2.23.248 | 2432833528 | 0 |
| 145.2.23.249 | 2432833529 | 0 |
| 145.2.23.250 | 2432833530 | 0 |
| 145.2.23.251 | 2432833531 | 0 |
| 145.2.23.252 | 2432833532 | 0 |
| 145.2.23.253 | 2432833533 | 0 |
| 145.2.23.254 | 2432833534 | 0 |
| 145.2.23.255 | 2432833535 | 0 |