Les adresses IP débutant par 51.73.20 sont fournies par Microsoft Corporation, elles appartiennent au CIDR (Classless Inter-Domain Routing) 51.103.0.0/16, le bloc IP comprant les adresses de 51.103.0.0 à 51.103.255.255). Le numéro de système autonome (ASN) est 8075.
| ASN | 8075 |
| IP commençant par | 51.103.0.0 |
| IP se terminant par | 51.103.255.255 |
| Nom ASN | Microsoft Corporation |
| CDIR | 51.103.0.0/16 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 20/09/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Warrington | 52,1845 | -0,6876 | 2017-10-27 |
| MaxMind | GB | Royaume-Uni | - | - | 51,4964 | -0,1224 | 2017-10-27 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 51.73.20.0 | 860427264 | 0 |
| 51.73.20.1 | 860427265 | 0 |
| 51.73.20.2 | 860427266 | 0 |
| 51.73.20.3 | 860427267 | 0 |
| 51.73.20.4 | 860427268 | 0 |
| 51.73.20.5 | 860427269 | 0 |
| 51.73.20.6 | 860427270 | 0 |
| 51.73.20.7 | 860427271 | 0 |
| 51.73.20.8 | 860427272 | 0 |
| 51.73.20.9 | 860427273 | 0 |
| 51.73.20.10 | 860427274 | 0 |
| 51.73.20.11 | 860427275 | 0 |
| 51.73.20.12 | 860427276 | 0 |
| 51.73.20.13 | 860427277 | 0 |
| 51.73.20.14 | 860427278 | 0 |
| 51.73.20.15 | 860427279 | 0 |
| 51.73.20.16 | 860427280 | 0 |
| 51.73.20.17 | 860427281 | 0 |
| 51.73.20.18 | 860427282 | 0 |
| 51.73.20.19 | 860427283 | 0 |
| 51.73.20.20 | 860427284 | 0 |
| 51.73.20.21 | 860427285 | 0 |
| 51.73.20.22 | 860427286 | 0 |
| 51.73.20.23 | 860427287 | 0 |
| 51.73.20.24 | 860427288 | 0 |
| 51.73.20.25 | 860427289 | 0 |
| 51.73.20.26 | 860427290 | 0 |
| 51.73.20.27 | 860427291 | 0 |
| 51.73.20.28 | 860427292 | 0 |
| 51.73.20.29 | 860427293 | 0 |
| 51.73.20.30 | 860427294 | 0 |
| 51.73.20.31 | 860427295 | 0 |
| 51.73.20.32 | 860427296 | 0 |
| 51.73.20.33 | 860427297 | 0 |
| 51.73.20.34 | 860427298 | 0 |
| 51.73.20.35 | 860427299 | 0 |
| 51.73.20.36 | 860427300 | 0 |
| 51.73.20.37 | 860427301 | 0 |
| 51.73.20.38 | 860427302 | 0 |
| 51.73.20.39 | 860427303 | 0 |
| 51.73.20.40 | 860427304 | 0 |
| 51.73.20.41 | 860427305 | 0 |
| 51.73.20.42 | 860427306 | 0 |
| 51.73.20.43 | 860427307 | 0 |
| 51.73.20.44 | 860427308 | 0 |
| 51.73.20.45 | 860427309 | 0 |
| 51.73.20.46 | 860427310 | 0 |
| 51.73.20.47 | 860427311 | 0 |
| 51.73.20.48 | 860427312 | 0 |
| 51.73.20.49 | 860427313 | 0 |
| 51.73.20.50 | 860427314 | 0 |
| 51.73.20.51 | 860427315 | 0 |
| 51.73.20.52 | 860427316 | 0 |
| 51.73.20.53 | 860427317 | 0 |
| 51.73.20.54 | 860427318 | 0 |
| 51.73.20.55 | 860427319 | 0 |
| 51.73.20.56 | 860427320 | 0 |
| 51.73.20.57 | 860427321 | 0 |
| 51.73.20.58 | 860427322 | 0 |
| 51.73.20.59 | 860427323 | 0 |
| 51.73.20.60 | 860427324 | 0 |
| 51.73.20.61 | 860427325 | 0 |
| 51.73.20.62 | 860427326 | 0 |
| 51.73.20.63 | 860427327 | 0 |
| 51.73.20.64 | 860427328 | 0 |
| 51.73.20.65 | 860427329 | 0 |
| 51.73.20.66 | 860427330 | 0 |
| 51.73.20.67 | 860427331 | 0 |
| 51.73.20.68 | 860427332 | 0 |
| 51.73.20.69 | 860427333 | 0 |
| 51.73.20.70 | 860427334 | 0 |
| 51.73.20.71 | 860427335 | 0 |
| 51.73.20.72 | 860427336 | 0 |
| 51.73.20.73 | 860427337 | 0 |
| 51.73.20.74 | 860427338 | 0 |
| 51.73.20.75 | 860427339 | 0 |
| 51.73.20.76 | 860427340 | 0 |
| 51.73.20.77 | 860427341 | 0 |
| 51.73.20.78 | 860427342 | 0 |
| 51.73.20.79 | 860427343 | 0 |
| 51.73.20.80 | 860427344 | 0 |
| 51.73.20.81 | 860427345 | 0 |
| 51.73.20.82 | 860427346 | 0 |
| 51.73.20.83 | 860427347 | 0 |
| 51.73.20.84 | 860427348 | 0 |
| 51.73.20.85 | 860427349 | 0 |