The IP address 81.157.157 is provided by BTnet UK Regional network, it's belong to the CDIR (Classless Inter-Domain Routing) 81.128.0.0/11 (range 81.128.0.0 to 81.159.255.255). The autonomous system number (ASN) is 2856.
| ASN | 2856 |
| IP starting by | 81.128.0.0 |
| IP ending by | 81.159.255.255 |
| ASN Name | BTnet UK Regional network |
| CDIR | 81.128.0.0/11 |
| Numerical IP | |
| Registry | ripencc |
| Last update | 29/07/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | GB | United Kingdom | - | Congresbury | 51.3714 | -2.8102 | 2017-07-29 |
| MaxMind | GB | United Kingdom | - | New Southgate | 51.6167 | -0.1333 | 2017-07-29 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |