Les adresses IP débutant par 81.2.161 sont fournies par Cogent Communications, elles appartiennent au CIDR (Classless Inter-Domain Routing) 81.2.128.0/18, le bloc IP comprant les adresses de 81.2.128.0 à 81.2.191.255). Le numéro de système autonome (ASN) est 174.
| ASN | 174 |
| IP commençant par | 81.2.128.0 |
| IP se terminant par | 81.2.191.255 |
| Nom ASN | Cogent Communications |
| CDIR | 81.2.128.0/18 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 10/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | New York City | 40,7143 | -74,006 | 2017-07-09 |
| MaxMind | DE | Allemagne | - | - | 51,2993 | 9,491 | 2017-07-09 |
| Whois | DE | - | - | - | 10 | 51 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.2.161.0 | 1359126784 | 0 |
| 81.2.161.1 | 1359126785 | 0 |
| 81.2.161.2 | 1359126786 | 0 |
| 81.2.161.3 | 1359126787 | 0 |
| 81.2.161.4 | 1359126788 | 0 |
| 81.2.161.5 | 1359126789 | 0 |
| 81.2.161.6 | 1359126790 | 0 |
| 81.2.161.7 | 1359126791 | 0 |
| 81.2.161.8 | 1359126792 | 0 |
| 81.2.161.9 | 1359126793 | 0 |
| 81.2.161.10 | 1359126794 | 0 |
| 81.2.161.11 | 1359126795 | 0 |
| 81.2.161.12 | 1359126796 | 0 |
| 81.2.161.13 | 1359126797 | 0 |
| 81.2.161.14 | 1359126798 | 0 |
| 81.2.161.15 | 1359126799 | 0 |
| 81.2.161.16 | 1359126800 | 0 |
| 81.2.161.17 | 1359126801 | 0 |
| 81.2.161.18 | 1359126802 | 0 |
| 81.2.161.19 | 1359126803 | 0 |
| 81.2.161.20 | 1359126804 | 0 |
| 81.2.161.21 | 1359126805 | 0 |
| 81.2.161.22 | 1359126806 | 0 |
| 81.2.161.23 | 1359126807 | 0 |
| 81.2.161.24 | 1359126808 | 0 |
| 81.2.161.25 | 1359126809 | 0 |
| 81.2.161.26 | 1359126810 | 0 |
| 81.2.161.27 | 1359126811 | 0 |
| 81.2.161.28 | 1359126812 | 0 |
| 81.2.161.29 | 1359126813 | 0 |
| 81.2.161.30 | 1359126814 | 0 |
| 81.2.161.31 | 1359126815 | 0 |
| 81.2.161.32 | 1359126816 | 0 |
| 81.2.161.33 | 1359126817 | 0 |
| 81.2.161.34 | 1359126818 | 0 |
| 81.2.161.35 | 1359126819 | 0 |
| 81.2.161.36 | 1359126820 | 0 |
| 81.2.161.37 | 1359126821 | 0 |
| 81.2.161.38 | 1359126822 | 0 |
| 81.2.161.39 | 1359126823 | 0 |
| 81.2.161.40 | 1359126824 | 0 |
| 81.2.161.41 | 1359126825 | 0 |
| 81.2.161.42 | 1359126826 | 0 |
| 81.2.161.43 | 1359126827 | 0 |
| 81.2.161.44 | 1359126828 | 0 |
| 81.2.161.45 | 1359126829 | 0 |
| 81.2.161.46 | 1359126830 | 0 |
| 81.2.161.47 | 1359126831 | 0 |
| 81.2.161.48 | 1359126832 | 0 |
| 81.2.161.49 | 1359126833 | 0 |
| 81.2.161.50 | 1359126834 | 0 |
| 81.2.161.51 | 1359126835 | 0 |
| 81.2.161.52 | 1359126836 | 0 |
| 81.2.161.53 | 1359126837 | 0 |
| 81.2.161.54 | 1359126838 | 0 |
| 81.2.161.55 | 1359126839 | 0 |
| 81.2.161.56 | 1359126840 | 0 |
| 81.2.161.57 | 1359126841 | 0 |
| 81.2.161.58 | 1359126842 | 0 |
| 81.2.161.59 | 1359126843 | 0 |
| 81.2.161.60 | 1359126844 | 0 |
| 81.2.161.61 | 1359126845 | 0 |
| 81.2.161.62 | 1359126846 | 0 |
| 81.2.161.63 | 1359126847 | 0 |
| 81.2.161.64 | 1359126848 | 0 |
| 81.2.161.65 | 1359126849 | 0 |
| 81.2.161.66 | 1359126850 | 0 |
| 81.2.161.67 | 1359126851 | 0 |
| 81.2.161.68 | 1359126852 | 0 |
| 81.2.161.69 | 1359126853 | 0 |
| 81.2.161.70 | 1359126854 | 0 |
| 81.2.161.71 | 1359126855 | 0 |
| 81.2.161.72 | 1359126856 | 0 |
| 81.2.161.73 | 1359126857 | 0 |
| 81.2.161.74 | 1359126858 | 0 |
| 81.2.161.75 | 1359126859 | 0 |
| 81.2.161.76 | 1359126860 | 0 |
| 81.2.161.77 | 1359126861 | 0 |
| 81.2.161.78 | 1359126862 | 0 |
| 81.2.161.79 | 1359126863 | 0 |
| 81.2.161.80 | 1359126864 | 0 |
| 81.2.161.81 | 1359126865 | 0 |
| 81.2.161.82 | 1359126866 | 0 |
| 81.2.161.83 | 1359126867 | 0 |
| 81.2.161.84 | 1359126868 | 0 |
| 81.2.161.85 | 1359126869 | 0 |
| IP | Numerical IP | DNS |
| 81.2.161.86 | 1359126870 | 0 |
| 81.2.161.87 | 1359126871 | 0 |
| 81.2.161.88 | 1359126872 | 0 |
| 81.2.161.89 | 1359126873 | 0 |
| 81.2.161.90 | 1359126874 | 0 |
| 81.2.161.91 | 1359126875 | 0 |
| 81.2.161.92 | 1359126876 | 0 |
| 81.2.161.93 | 1359126877 | 0 |
| 81.2.161.94 | 1359126878 | 0 |
| 81.2.161.95 | 1359126879 | 0 |
| 81.2.161.96 | 1359126880 | 0 |
| 81.2.161.97 | 1359126881 | 0 |
| 81.2.161.98 | 1359126882 | 0 |
| 81.2.161.99 | 1359126883 | 0 |
| 81.2.161.100 | 1359126884 | 0 |
| 81.2.161.101 | 1359126885 | 0 |
| 81.2.161.102 | 1359126886 | 0 |
| 81.2.161.103 | 1359126887 | 0 |
| 81.2.161.104 | 1359126888 | 0 |
| 81.2.161.105 | 1359126889 | 0 |
| 81.2.161.106 | 1359126890 | 0 |
| 81.2.161.107 | 1359126891 | 0 |
| 81.2.161.108 | 1359126892 | 0 |
| 81.2.161.109 | 1359126893 | 0 |
| 81.2.161.110 | 1359126894 | 0 |
| 81.2.161.111 | 1359126895 | 0 |
| 81.2.161.112 | 1359126896 | 0 |
| 81.2.161.113 | 1359126897 | 0 |
| 81.2.161.114 | 1359126898 | 0 |
| 81.2.161.115 | 1359126899 | 0 |
| 81.2.161.116 | 1359126900 | 0 |
| 81.2.161.117 | 1359126901 | 0 |
| 81.2.161.118 | 1359126902 | 0 |
| 81.2.161.119 | 1359126903 | 0 |
| 81.2.161.120 | 1359126904 | 0 |
| 81.2.161.121 | 1359126905 | 0 |
| 81.2.161.122 | 1359126906 | 0 |
| 81.2.161.123 | 1359126907 | 0 |
| 81.2.161.124 | 1359126908 | 0 |
| 81.2.161.125 | 1359126909 | 0 |
| 81.2.161.126 | 1359126910 | 0 |
| 81.2.161.127 | 1359126911 | 0 |
| 81.2.161.128 | 1359126912 | 0 |
| 81.2.161.129 | 1359126913 | 0 |
| 81.2.161.130 | 1359126914 | 0 |
| 81.2.161.131 | 1359126915 | 0 |
| 81.2.161.132 | 1359126916 | 0 |
| 81.2.161.133 | 1359126917 | 0 |
| 81.2.161.134 | 1359126918 | 0 |
| 81.2.161.135 | 1359126919 | 0 |
| 81.2.161.136 | 1359126920 | 0 |
| 81.2.161.137 | 1359126921 | 0 |
| 81.2.161.138 | 1359126922 | 0 |
| 81.2.161.139 | 1359126923 | 0 |
| 81.2.161.140 | 1359126924 | 0 |
| 81.2.161.141 | 1359126925 | 0 |
| 81.2.161.142 | 1359126926 | 0 |
| 81.2.161.143 | 1359126927 | 0 |
| 81.2.161.144 | 1359126928 | 0 |
| 81.2.161.145 | 1359126929 | 0 |
| 81.2.161.146 | 1359126930 | 0 |
| 81.2.161.147 | 1359126931 | 0 |
| 81.2.161.148 | 1359126932 | 0 |
| 81.2.161.149 | 1359126933 | 0 |
| 81.2.161.150 | 1359126934 | 0 |
| 81.2.161.151 | 1359126935 | 0 |
| 81.2.161.152 | 1359126936 | 0 |
| 81.2.161.153 | 1359126937 | 0 |
| 81.2.161.154 | 1359126938 | 0 |
| 81.2.161.155 | 1359126939 | 0 |
| 81.2.161.156 | 1359126940 | 0 |
| 81.2.161.157 | 1359126941 | 0 |
| 81.2.161.158 | 1359126942 | 0 |
| 81.2.161.159 | 1359126943 | 0 |
| 81.2.161.160 | 1359126944 | 0 |
| 81.2.161.161 | 1359126945 | 0 |
| 81.2.161.162 | 1359126946 | 0 |
| 81.2.161.163 | 1359126947 | 0 |
| 81.2.161.164 | 1359126948 | 0 |
| 81.2.161.165 | 1359126949 | 0 |
| 81.2.161.166 | 1359126950 | 0 |
| 81.2.161.167 | 1359126951 | 0 |
| 81.2.161.168 | 1359126952 | 0 |
| 81.2.161.169 | 1359126953 | 0 |
| 81.2.161.170 | 1359126954 | 0 |
| 81.2.161.171 | 1359126955 | 0 |
| IP | Numerical IP | DNS |
| 81.2.161.172 | 1359126956 | 0 |
| 81.2.161.173 | 1359126957 | 0 |
| 81.2.161.174 | 1359126958 | 0 |
| 81.2.161.175 | 1359126959 | 0 |
| 81.2.161.176 | 1359126960 | 0 |
| 81.2.161.177 | 1359126961 | 0 |
| 81.2.161.178 | 1359126962 | 0 |
| 81.2.161.179 | 1359126963 | 0 |
| 81.2.161.180 | 1359126964 | 0 |
| 81.2.161.181 | 1359126965 | 0 |
| 81.2.161.182 | 1359126966 | 0 |
| 81.2.161.183 | 1359126967 | 0 |
| 81.2.161.184 | 1359126968 | 0 |
| 81.2.161.185 | 1359126969 | 0 |
| 81.2.161.186 | 1359126970 | 0 |
| 81.2.161.187 | 1359126971 | 0 |
| 81.2.161.188 | 1359126972 | 0 |
| 81.2.161.189 | 1359126973 | 0 |
| 81.2.161.190 | 1359126974 | 0 |
| 81.2.161.191 | 1359126975 | 0 |
| 81.2.161.192 | 1359126976 | 0 |
| 81.2.161.193 | 1359126977 | 0 |
| 81.2.161.194 | 1359126978 | 0 |
| 81.2.161.195 | 1359126979 | 0 |
| 81.2.161.196 | 1359126980 | 0 |
| 81.2.161.197 | 1359126981 | 0 |
| 81.2.161.198 | 1359126982 | 0 |
| 81.2.161.199 | 1359126983 | 0 |
| 81.2.161.200 | 1359126984 | 0 |
| 81.2.161.201 | 1359126985 | 0 |
| 81.2.161.202 | 1359126986 | 0 |
| 81.2.161.203 | 1359126987 | 0 |
| 81.2.161.204 | 1359126988 | 0 |
| 81.2.161.205 | 1359126989 | 0 |
| 81.2.161.206 | 1359126990 | 0 |
| 81.2.161.207 | 1359126991 | 0 |
| 81.2.161.208 | 1359126992 | 0 |
| 81.2.161.209 | 1359126993 | 0 |
| 81.2.161.210 | 1359126994 | 0 |
| 81.2.161.211 | 1359126995 | 0 |
| 81.2.161.212 | 1359126996 | 0 |
| 81.2.161.213 | 1359126997 | 0 |
| 81.2.161.214 | 1359126998 | 0 |
| 81.2.161.215 | 1359126999 | 0 |
| 81.2.161.216 | 1359127000 | 0 |
| 81.2.161.217 | 1359127001 | 0 |
| 81.2.161.218 | 1359127002 | 0 |
| 81.2.161.219 | 1359127003 | 0 |
| 81.2.161.220 | 1359127004 | 0 |
| 81.2.161.221 | 1359127005 | 0 |
| 81.2.161.222 | 1359127006 | 0 |
| 81.2.161.223 | 1359127007 | 0 |
| 81.2.161.224 | 1359127008 | 0 |
| 81.2.161.225 | 1359127009 | 0 |
| 81.2.161.226 | 1359127010 | 0 |
| 81.2.161.227 | 1359127011 | 0 |
| 81.2.161.228 | 1359127012 | 0 |
| 81.2.161.229 | 1359127013 | 0 |
| 81.2.161.230 | 1359127014 | 0 |
| 81.2.161.231 | 1359127015 | 0 |
| 81.2.161.232 | 1359127016 | 0 |
| 81.2.161.233 | 1359127017 | 0 |
| 81.2.161.234 | 1359127018 | 0 |
| 81.2.161.235 | 1359127019 | 0 |
| 81.2.161.236 | 1359127020 | 0 |
| 81.2.161.237 | 1359127021 | 0 |
| 81.2.161.238 | 1359127022 | 0 |
| 81.2.161.239 | 1359127023 | 0 |
| 81.2.161.240 | 1359127024 | 0 |
| 81.2.161.241 | 1359127025 | 0 |
| 81.2.161.242 | 1359127026 | 0 |
| 81.2.161.243 | 1359127027 | 0 |
| 81.2.161.244 | 1359127028 | 0 |
| 81.2.161.245 | 1359127029 | 0 |
| 81.2.161.246 | 1359127030 | 0 |
| 81.2.161.247 | 1359127031 | 0 |
| 81.2.161.248 | 1359127032 | 0 |
| 81.2.161.249 | 1359127033 | 0 |
| 81.2.161.250 | 1359127034 | 0 |
| 81.2.161.251 | 1359127035 | 0 |
| 81.2.161.252 | 1359127036 | 0 |
| 81.2.161.253 | 1359127037 | 0 |
| 81.2.161.254 | 1359127038 | 0 |
| 81.2.161.255 | 1359127039 | 0 |