The IP address 81.77.16 is provided by UK Backbone Network, it's belong to the CDIR (Classless Inter-Domain Routing) 81.76.0.0/14 (range 81.76.0.0 to 81.79.255.255). The autonomous system number (ASN) is 5388.
| ASN | 5388 |
| IP starting by | 81.76.0.0 |
| IP ending by | 81.79.255.255 |
| ASN Name | UK Backbone Network |
| CDIR | 81.76.0.0/14 |
| Numerical IP | |
| Registry | ripencc |
| Last update | 15/09/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | GB | United Kingdom | - | Leeds | 51.2468 | 0.6068 | 2017-07-03 |
| MaxMind | GB | United Kingdom | - | - | 51.4964 | -0.1224 | 2017-07-03 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.77.16.0 | 1364004864 | 0 |
| 81.77.16.1 | 1364004865 | 0 |
| 81.77.16.2 | 1364004866 | 0 |
| 81.77.16.3 | 1364004867 | 0 |
| 81.77.16.4 | 1364004868 | 0 |
| 81.77.16.5 | 1364004869 | 0 |
| 81.77.16.6 | 1364004870 | 0 |
| 81.77.16.7 | 1364004871 | 0 |
| 81.77.16.8 | 1364004872 | 0 |
| 81.77.16.9 | 1364004873 | 0 |
| 81.77.16.10 | 1364004874 | 0 |
| 81.77.16.11 | 1364004875 | 0 |
| 81.77.16.12 | 1364004876 | 0 |
| 81.77.16.13 | 1364004877 | 0 |
| 81.77.16.14 | 1364004878 | 0 |
| 81.77.16.15 | 1364004879 | 0 |
| 81.77.16.16 | 1364004880 | 0 |
| 81.77.16.17 | 1364004881 | 0 |
| 81.77.16.18 | 1364004882 | 0 |
| 81.77.16.19 | 1364004883 | 0 |
| 81.77.16.20 | 1364004884 | 0 |
| 81.77.16.21 | 1364004885 | 0 |
| 81.77.16.22 | 1364004886 | 0 |
| 81.77.16.23 | 1364004887 | 0 |
| 81.77.16.24 | 1364004888 | 0 |
| 81.77.16.25 | 1364004889 | 0 |
| 81.77.16.26 | 1364004890 | 0 |
| 81.77.16.27 | 1364004891 | 0 |
| 81.77.16.28 | 1364004892 | 0 |
| 81.77.16.29 | 1364004893 | 0 |
| 81.77.16.30 | 1364004894 | 0 |
| 81.77.16.31 | 1364004895 | 0 |
| 81.77.16.32 | 1364004896 | 0 |
| 81.77.16.33 | 1364004897 | 0 |
| 81.77.16.34 | 1364004898 | 0 |
| 81.77.16.35 | 1364004899 | 0 |
| 81.77.16.36 | 1364004900 | 0 |
| 81.77.16.37 | 1364004901 | 0 |
| 81.77.16.38 | 1364004902 | 0 |
| 81.77.16.39 | 1364004903 | 0 |
| 81.77.16.40 | 1364004904 | 0 |
| 81.77.16.41 | 1364004905 | 0 |
| 81.77.16.42 | 1364004906 | 0 |
| 81.77.16.43 | 1364004907 | 0 |
| 81.77.16.44 | 1364004908 | 0 |
| 81.77.16.45 | 1364004909 | 0 |
| 81.77.16.46 | 1364004910 | 0 |
| 81.77.16.47 | 1364004911 | 0 |
| 81.77.16.48 | 1364004912 | 0 |
| 81.77.16.49 | 1364004913 | 0 |
| 81.77.16.50 | 1364004914 | 0 |
| 81.77.16.51 | 1364004915 | 0 |
| 81.77.16.52 | 1364004916 | 0 |
| 81.77.16.53 | 1364004917 | 0 |
| 81.77.16.54 | 1364004918 | 0 |
| 81.77.16.55 | 1364004919 | 0 |
| 81.77.16.56 | 1364004920 | 0 |
| 81.77.16.57 | 1364004921 | 0 |
| 81.77.16.58 | 1364004922 | 0 |
| 81.77.16.59 | 1364004923 | 0 |
| 81.77.16.60 | 1364004924 | 0 |
| 81.77.16.61 | 1364004925 | 0 |
| 81.77.16.62 | 1364004926 | 0 |
| 81.77.16.63 | 1364004927 | 0 |
| 81.77.16.64 | 1364004928 | 0 |
| 81.77.16.65 | 1364004929 | 0 |
| 81.77.16.66 | 1364004930 | 0 |
| 81.77.16.67 | 1364004931 | 0 |
| 81.77.16.68 | 1364004932 | 0 |
| 81.77.16.69 | 1364004933 | 0 |
| 81.77.16.70 | 1364004934 | 0 |
| 81.77.16.71 | 1364004935 | 0 |
| 81.77.16.72 | 1364004936 | 0 |
| 81.77.16.73 | 1364004937 | 0 |
| 81.77.16.74 | 1364004938 | 0 |
| 81.77.16.75 | 1364004939 | 0 |
| 81.77.16.76 | 1364004940 | 0 |
| 81.77.16.77 | 1364004941 | 0 |
| 81.77.16.78 | 1364004942 | 0 |
| 81.77.16.79 | 1364004943 | 0 |
| 81.77.16.80 | 1364004944 | 0 |
| 81.77.16.81 | 1364004945 | 0 |
| 81.77.16.82 | 1364004946 | 0 |
| 81.77.16.83 | 1364004947 | 0 |
| 81.77.16.84 | 1364004948 | 0 |
| 81.77.16.85 | 1364004949 | 0 |
| IP | Numerical IP | DNS |
| 81.77.16.86 | 1364004950 | 0 |
| 81.77.16.87 | 1364004951 | 0 |
| 81.77.16.88 | 1364004952 | 0 |
| 81.77.16.89 | 1364004953 | 0 |
| 81.77.16.90 | 1364004954 | 0 |
| 81.77.16.91 | 1364004955 | 0 |
| 81.77.16.92 | 1364004956 | 0 |
| 81.77.16.93 | 1364004957 | 0 |
| 81.77.16.94 | 1364004958 | 0 |
| 81.77.16.95 | 1364004959 | 0 |
| 81.77.16.96 | 1364004960 | 0 |
| 81.77.16.97 | 1364004961 | 0 |
| 81.77.16.98 | 1364004962 | 0 |
| 81.77.16.99 | 1364004963 | 0 |
| 81.77.16.100 | 1364004964 | 0 |
| 81.77.16.101 | 1364004965 | 0 |
| 81.77.16.102 | 1364004966 | 0 |
| 81.77.16.103 | 1364004967 | 0 |
| 81.77.16.104 | 1364004968 | 0 |
| 81.77.16.105 | 1364004969 | 0 |
| 81.77.16.106 | 1364004970 | 0 |
| 81.77.16.107 | 1364004971 | 0 |
| 81.77.16.108 | 1364004972 | 0 |
| 81.77.16.109 | 1364004973 | 0 |
| 81.77.16.110 | 1364004974 | 0 |
| 81.77.16.111 | 1364004975 | 0 |
| 81.77.16.112 | 1364004976 | 0 |
| 81.77.16.113 | 1364004977 | 0 |
| 81.77.16.114 | 1364004978 | 0 |
| 81.77.16.115 | 1364004979 | 0 |
| 81.77.16.116 | 1364004980 | 0 |
| 81.77.16.117 | 1364004981 | 0 |
| 81.77.16.118 | 1364004982 | 0 |
| 81.77.16.119 | 1364004983 | 0 |
| 81.77.16.120 | 1364004984 | 0 |
| 81.77.16.121 | 1364004985 | 0 |
| 81.77.16.122 | 1364004986 | 0 |
| 81.77.16.123 | 1364004987 | 0 |
| 81.77.16.124 | 1364004988 | 0 |
| 81.77.16.125 | 1364004989 | 0 |
| 81.77.16.126 | 1364004990 | 0 |
| 81.77.16.127 | 1364004991 | 0 |
| 81.77.16.128 | 1364004992 | 0 |
| 81.77.16.129 | 1364004993 | 0 |
| 81.77.16.130 | 1364004994 | 0 |
| 81.77.16.131 | 1364004995 | 0 |
| 81.77.16.132 | 1364004996 | 0 |
| 81.77.16.133 | 1364004997 | 0 |
| 81.77.16.134 | 1364004998 | 0 |
| 81.77.16.135 | 1364004999 | 0 |
| 81.77.16.136 | 1364005000 | 0 |
| 81.77.16.137 | 1364005001 | 0 |
| 81.77.16.138 | 1364005002 | 0 |
| 81.77.16.139 | 1364005003 | 0 |
| 81.77.16.140 | 1364005004 | 0 |
| 81.77.16.141 | 1364005005 | 0 |
| 81.77.16.142 | 1364005006 | 0 |
| 81.77.16.143 | 1364005007 | 0 |
| 81.77.16.144 | 1364005008 | 0 |
| 81.77.16.145 | 1364005009 | 0 |
| 81.77.16.146 | 1364005010 | 0 |
| 81.77.16.147 | 1364005011 | 0 |
| 81.77.16.148 | 1364005012 | 0 |
| 81.77.16.149 | 1364005013 | 0 |
| 81.77.16.150 | 1364005014 | 0 |
| 81.77.16.151 | 1364005015 | 0 |
| 81.77.16.152 | 1364005016 | 0 |
| 81.77.16.153 | 1364005017 | 0 |
| 81.77.16.154 | 1364005018 | 0 |
| 81.77.16.155 | 1364005019 | 0 |
| 81.77.16.156 | 1364005020 | 0 |
| 81.77.16.157 | 1364005021 | 0 |
| 81.77.16.158 | 1364005022 | 0 |
| 81.77.16.159 | 1364005023 | 0 |
| 81.77.16.160 | 1364005024 | 0 |
| 81.77.16.161 | 1364005025 | 0 |
| 81.77.16.162 | 1364005026 | 0 |
| 81.77.16.163 | 1364005027 | 0 |
| 81.77.16.164 | 1364005028 | 0 |
| 81.77.16.165 | 1364005029 | 0 |
| 81.77.16.166 | 1364005030 | 0 |
| 81.77.16.167 | 1364005031 | 0 |
| 81.77.16.168 | 1364005032 | 0 |
| 81.77.16.169 | 1364005033 | 0 |
| 81.77.16.170 | 1364005034 | 0 |
| 81.77.16.171 | 1364005035 | 0 |
| IP | Numerical IP | DNS |
| 81.77.16.172 | 1364005036 | 0 |
| 81.77.16.173 | 1364005037 | 0 |
| 81.77.16.174 | 1364005038 | 0 |
| 81.77.16.175 | 1364005039 | 0 |
| 81.77.16.176 | 1364005040 | 0 |
| 81.77.16.177 | 1364005041 | 0 |
| 81.77.16.178 | 1364005042 | 0 |
| 81.77.16.179 | 1364005043 | 0 |
| 81.77.16.180 | 1364005044 | 0 |
| 81.77.16.181 | 1364005045 | 0 |
| 81.77.16.182 | 1364005046 | 0 |
| 81.77.16.183 | 1364005047 | 0 |
| 81.77.16.184 | 1364005048 | 0 |
| 81.77.16.185 | 1364005049 | 0 |
| 81.77.16.186 | 1364005050 | 0 |
| 81.77.16.187 | 1364005051 | 0 |
| 81.77.16.188 | 1364005052 | 0 |
| 81.77.16.189 | 1364005053 | 0 |
| 81.77.16.190 | 1364005054 | 0 |
| 81.77.16.191 | 1364005055 | 0 |
| 81.77.16.192 | 1364005056 | 0 |
| 81.77.16.193 | 1364005057 | 0 |
| 81.77.16.194 | 1364005058 | 0 |
| 81.77.16.195 | 1364005059 | 0 |
| 81.77.16.196 | 1364005060 | 0 |
| 81.77.16.197 | 1364005061 | 0 |
| 81.77.16.198 | 1364005062 | 0 |
| 81.77.16.199 | 1364005063 | 0 |
| 81.77.16.200 | 1364005064 | 0 |
| 81.77.16.201 | 1364005065 | 0 |
| 81.77.16.202 | 1364005066 | 0 |
| 81.77.16.203 | 1364005067 | 0 |
| 81.77.16.204 | 1364005068 | 0 |
| 81.77.16.205 | 1364005069 | 0 |
| 81.77.16.206 | 1364005070 | 0 |
| 81.77.16.207 | 1364005071 | 0 |
| 81.77.16.208 | 1364005072 | 0 |
| 81.77.16.209 | 1364005073 | 0 |
| 81.77.16.210 | 1364005074 | 0 |
| 81.77.16.211 | 1364005075 | 0 |
| 81.77.16.212 | 1364005076 | 0 |
| 81.77.16.213 | 1364005077 | 0 |
| 81.77.16.214 | 1364005078 | 0 |
| 81.77.16.215 | 1364005079 | 0 |
| 81.77.16.216 | 1364005080 | 0 |
| 81.77.16.217 | 1364005081 | 0 |
| 81.77.16.218 | 1364005082 | 0 |
| 81.77.16.219 | 1364005083 | 0 |
| 81.77.16.220 | 1364005084 | 0 |
| 81.77.16.221 | 1364005085 | 0 |
| 81.77.16.222 | 1364005086 | 0 |
| 81.77.16.223 | 1364005087 | 0 |
| 81.77.16.224 | 1364005088 | 0 |
| 81.77.16.225 | 1364005089 | 0 |
| 81.77.16.226 | 1364005090 | 0 |
| 81.77.16.227 | 1364005091 | 0 |
| 81.77.16.228 | 1364005092 | 0 |
| 81.77.16.229 | 1364005093 | 0 |
| 81.77.16.230 | 1364005094 | 0 |
| 81.77.16.231 | 1364005095 | 0 |
| 81.77.16.232 | 1364005096 | 0 |
| 81.77.16.233 | 1364005097 | 0 |
| 81.77.16.234 | 1364005098 | 0 |
| 81.77.16.235 | 1364005099 | 0 |
| 81.77.16.236 | 1364005100 | 0 |
| 81.77.16.237 | 1364005101 | 0 |
| 81.77.16.238 | 1364005102 | 0 |
| 81.77.16.239 | 1364005103 | 0 |
| 81.77.16.240 | 1364005104 | 0 |
| 81.77.16.241 | 1364005105 | 0 |
| 81.77.16.242 | 1364005106 | 0 |
| 81.77.16.243 | 1364005107 | 0 |
| 81.77.16.244 | 1364005108 | 0 |
| 81.77.16.245 | 1364005109 | 0 |
| 81.77.16.246 | 1364005110 | 0 |
| 81.77.16.247 | 1364005111 | 0 |
| 81.77.16.248 | 1364005112 | 0 |
| 81.77.16.249 | 1364005113 | 0 |
| 81.77.16.250 | 1364005114 | 0 |
| 81.77.16.251 | 1364005115 | 0 |
| 81.77.16.252 | 1364005116 | 0 |
| 81.77.16.253 | 1364005117 | 0 |
| 81.77.16.254 | 1364005118 | 0 |
| 81.77.16.255 | 1364005119 | 0 |