The IP address 81.139.78 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 | 06/07/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | GB | United Kingdom | - | Danbury | 51.7165 | 0.5825 | 2017-07-06 |
| MaxMind | GB | United Kingdom | - | - | 51.4964 | -0.1224 | 2017-07-06 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.139.78.0 | 1368083968 | 0 |
| 81.139.78.1 | 1368083969 | 0 |
| 81.139.78.2 | 1368083970 | 0 |
| 81.139.78.3 | 1368083971 | 0 |
| 81.139.78.4 | 1368083972 | 0 |
| 81.139.78.5 | 1368083973 | 0 |
| 81.139.78.6 | 1368083974 | 0 |
| 81.139.78.7 | 1368083975 | 0 |
| 81.139.78.8 | 1368083976 | 0 |
| 81.139.78.9 | 1368083977 | 0 |
| 81.139.78.10 | 1368083978 | 0 |
| 81.139.78.11 | 1368083979 | 0 |
| 81.139.78.12 | 1368083980 | 0 |
| 81.139.78.13 | 1368083981 | 0 |
| 81.139.78.14 | 1368083982 | 0 |
| 81.139.78.15 | 1368083983 | 0 |
| 81.139.78.16 | 1368083984 | 0 |
| 81.139.78.17 | 1368083985 | 0 |
| 81.139.78.18 | 1368083986 | 0 |
| 81.139.78.19 | 1368083987 | 0 |
| 81.139.78.20 | 1368083988 | 0 |
| 81.139.78.21 | 1368083989 | 0 |
| 81.139.78.22 | 1368083990 | 0 |
| 81.139.78.23 | 1368083991 | 0 |
| 81.139.78.24 | 1368083992 | 0 |
| 81.139.78.25 | 1368083993 | 0 |
| 81.139.78.26 | 1368083994 | 0 |
| 81.139.78.27 | 1368083995 | 0 |
| 81.139.78.28 | 1368083996 | 0 |
| 81.139.78.29 | 1368083997 | 0 |
| 81.139.78.30 | 1368083998 | 0 |
| 81.139.78.31 | 1368083999 | 0 |
| 81.139.78.32 | 1368084000 | 0 |
| 81.139.78.33 | 1368084001 | 0 |
| 81.139.78.34 | 1368084002 | 0 |
| 81.139.78.35 | 1368084003 | 0 |
| 81.139.78.36 | 1368084004 | 0 |
| 81.139.78.37 | 1368084005 | 0 |
| 81.139.78.38 | 1368084006 | 0 |
| 81.139.78.39 | 1368084007 | 0 |
| 81.139.78.40 | 1368084008 | 0 |
| 81.139.78.41 | 1368084009 | 0 |
| 81.139.78.42 | 1368084010 | 0 |
| 81.139.78.43 | 1368084011 | 0 |
| 81.139.78.44 | 1368084012 | 0 |
| 81.139.78.45 | 1368084013 | 0 |
| 81.139.78.46 | 1368084014 | 0 |
| 81.139.78.47 | 1368084015 | 0 |
| 81.139.78.48 | 1368084016 | 0 |
| 81.139.78.49 | 1368084017 | 0 |
| 81.139.78.50 | 1368084018 | 0 |
| 81.139.78.51 | 1368084019 | 0 |
| 81.139.78.52 | 1368084020 | 0 |
| 81.139.78.53 | 1368084021 | 0 |
| 81.139.78.54 | 1368084022 | 0 |
| 81.139.78.55 | 1368084023 | 0 |
| 81.139.78.56 | 1368084024 | 0 |
| 81.139.78.57 | 1368084025 | 0 |
| 81.139.78.58 | 1368084026 | 0 |
| 81.139.78.59 | 1368084027 | 0 |
| 81.139.78.60 | 1368084028 | 0 |
| 81.139.78.61 | 1368084029 | 0 |
| 81.139.78.62 | 1368084030 | 0 |
| 81.139.78.63 | 1368084031 | 0 |
| 81.139.78.64 | 1368084032 | 0 |
| 81.139.78.65 | 1368084033 | 0 |
| 81.139.78.66 | 1368084034 | 0 |
| 81.139.78.67 | 1368084035 | 0 |
| 81.139.78.68 | 1368084036 | 0 |
| 81.139.78.69 | 1368084037 | 0 |
| 81.139.78.70 | 1368084038 | 0 |
| 81.139.78.71 | 1368084039 | 0 |
| 81.139.78.72 | 1368084040 | 0 |
| 81.139.78.73 | 1368084041 | 0 |
| 81.139.78.74 | 1368084042 | 0 |
| 81.139.78.75 | 1368084043 | 0 |
| 81.139.78.76 | 1368084044 | 0 |
| 81.139.78.77 | 1368084045 | 0 |
| 81.139.78.78 | 1368084046 | 0 |
| 81.139.78.79 | 1368084047 | 0 |
| 81.139.78.80 | 1368084048 | 0 |
| 81.139.78.81 | 1368084049 | 0 |
| 81.139.78.82 | 1368084050 | 0 |
| 81.139.78.83 | 1368084051 | 0 |
| 81.139.78.84 | 1368084052 | 0 |
| 81.139.78.85 | 1368084053 | 0 |