Les adresses IP débutant par 81.155.50 sont fournies par BTnet UK Regional network, elles appartiennent au CIDR (Classless Inter-Domain Routing) 81.128.0.0/11, le bloc IP comprant les adresses de 81.128.0.0 à 81.159.255.255). Le numéro de système autonome (ASN) est 2856.
| ASN | 2856 |
| IP commençant par | 81.128.0.0 |
| IP se terminant par | 81.159.255.255 |
| Nom ASN | BTnet UK Regional network |
| CDIR | 81.128.0.0/11 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 21/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Boxted | 51,95 | 0,9167 | 2017-07-20 |
| MaxMind | GB | Royaume-Uni | - | Colchester | 51,8828 | 1,0046 | 2017-07-20 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.155.50.0 | 1369125376 | 0 |
| 81.155.50.1 | 1369125377 | 0 |
| 81.155.50.2 | 1369125378 | 0 |
| 81.155.50.3 | 1369125379 | 0 |
| 81.155.50.4 | 1369125380 | 0 |
| 81.155.50.5 | 1369125381 | 0 |
| 81.155.50.6 | 1369125382 | 0 |
| 81.155.50.7 | 1369125383 | 0 |
| 81.155.50.8 | 1369125384 | 0 |
| 81.155.50.9 | 1369125385 | 0 |
| 81.155.50.10 | 1369125386 | 0 |
| 81.155.50.11 | 1369125387 | 0 |
| 81.155.50.12 | 1369125388 | 0 |
| 81.155.50.13 | 1369125389 | 0 |
| 81.155.50.14 | 1369125390 | 0 |
| 81.155.50.15 | 1369125391 | 0 |
| 81.155.50.16 | 1369125392 | 0 |
| 81.155.50.17 | 1369125393 | 0 |
| 81.155.50.18 | 1369125394 | 0 |
| 81.155.50.19 | 1369125395 | 0 |
| 81.155.50.20 | 1369125396 | 0 |
| 81.155.50.21 | 1369125397 | 0 |
| 81.155.50.22 | 1369125398 | 0 |
| 81.155.50.23 | 1369125399 | 0 |
| 81.155.50.24 | 1369125400 | 0 |
| 81.155.50.25 | 1369125401 | 0 |
| 81.155.50.26 | 1369125402 | 0 |
| 81.155.50.27 | 1369125403 | 0 |
| 81.155.50.28 | 1369125404 | 0 |
| 81.155.50.29 | 1369125405 | 0 |
| 81.155.50.30 | 1369125406 | 0 |
| 81.155.50.31 | 1369125407 | 0 |
| 81.155.50.32 | 1369125408 | 0 |
| 81.155.50.33 | 1369125409 | 0 |
| 81.155.50.34 | 1369125410 | 0 |
| 81.155.50.35 | 1369125411 | 0 |
| 81.155.50.36 | 1369125412 | 0 |
| 81.155.50.37 | 1369125413 | 0 |
| 81.155.50.38 | 1369125414 | 0 |
| 81.155.50.39 | 1369125415 | 0 |
| 81.155.50.40 | 1369125416 | 0 |
| 81.155.50.41 | 1369125417 | 0 |
| 81.155.50.42 | 1369125418 | 0 |
| 81.155.50.43 | 1369125419 | 0 |
| 81.155.50.44 | 1369125420 | 0 |
| 81.155.50.45 | 1369125421 | 0 |
| 81.155.50.46 | 1369125422 | 0 |
| 81.155.50.47 | 1369125423 | 0 |
| 81.155.50.48 | 1369125424 | 0 |
| 81.155.50.49 | 1369125425 | 0 |
| 81.155.50.50 | 1369125426 | 0 |
| 81.155.50.51 | 1369125427 | 0 |
| 81.155.50.52 | 1369125428 | 0 |
| 81.155.50.53 | 1369125429 | 0 |
| 81.155.50.54 | 1369125430 | 0 |
| 81.155.50.55 | 1369125431 | 0 |
| 81.155.50.56 | 1369125432 | 0 |
| 81.155.50.57 | 1369125433 | 0 |
| 81.155.50.58 | 1369125434 | 0 |
| 81.155.50.59 | 1369125435 | 0 |
| 81.155.50.60 | 1369125436 | 0 |
| 81.155.50.61 | 1369125437 | 0 |
| 81.155.50.62 | 1369125438 | 0 |
| 81.155.50.63 | 1369125439 | 0 |
| 81.155.50.64 | 1369125440 | 0 |
| 81.155.50.65 | 1369125441 | 0 |
| 81.155.50.66 | 1369125442 | 0 |
| 81.155.50.67 | 1369125443 | 0 |
| 81.155.50.68 | 1369125444 | 0 |
| 81.155.50.69 | 1369125445 | 0 |
| 81.155.50.70 | 1369125446 | 0 |
| 81.155.50.71 | 1369125447 | 0 |
| 81.155.50.72 | 1369125448 | 0 |
| 81.155.50.73 | 1369125449 | 0 |
| 81.155.50.74 | 1369125450 | 0 |
| 81.155.50.75 | 1369125451 | 0 |
| 81.155.50.76 | 1369125452 | 0 |
| 81.155.50.77 | 1369125453 | 0 |
| 81.155.50.78 | 1369125454 | 0 |
| 81.155.50.79 | 1369125455 | 0 |
| 81.155.50.80 | 1369125456 | 0 |
| 81.155.50.81 | 1369125457 | 0 |
| 81.155.50.82 | 1369125458 | 0 |
| 81.155.50.83 | 1369125459 | 0 |
| 81.155.50.84 | 1369125460 | 0 |
| 81.155.50.85 | 1369125461 | 0 |