The IP address 81.157.245 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 | 23/07/2017 | 

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | GB | United Kingdom | - | Dry Drayton | 52.2417 | 0.0181 | 2017-07-03 | 
| MaxMind | GB | United Kingdom | - | Cambridge | 52.2093 | 0.1482 | 2017-07-03 | 
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |