IP Find IPv6 Subnet/Network and its host address ranges

What is an IPv6 IP address its network and host address ranges?

IPv6 addresses are each 128 bits long. Because each digit in an IPv6 address can have 16 different values (from 0 to 15), each digit represents the overall value of 4 bits (one nibble), with 32 digits total. As with IPv4, CIDR notation describes ranges in terms of a common prefix of bits. For example 2001:db8::/32 means that the range described has the first 32 bits set to the binary digits 00100000000000010000110110111000. Also like IPv4, MediaWiki implements IPv6 rangeblocks using CIDR notation.
Following are the ranges of IPv6 subnet/network address and their host addresses.


IPv6 Address IPv4 Address
b51a:901b:cb15:8045:ada8:eb24:e9dd:f901 233.221.249.1
b51a:901b:cb15:8045:ada8:eb24:e9dd:f902 233.221.249.2
b51a:901b:cb15:8045:ada8:eb24:e9dd:f903 233.221.249.3
b51a:901b:cb15:8045:ada8:eb24:e9dd:f904 233.221.249.4
b51a:901b:cb15:8045:ada8:eb24:e9dd:f905 233.221.249.5
b51a:901b:cb15:8045:ada8:eb24:e9dd:f906 233.221.249.6
b51a:901b:cb15:8045:ada8:eb24:e9dd:f907 233.221.249.7
b51a:901b:cb15:8045:ada8:eb24:e9dd:f908 233.221.249.8
b51a:901b:cb15:8045:ada8:eb24:e9dd:f909 233.221.249.9
b51a:901b:cb15:8045:ada8:eb24:e9dd:f90a 233.221.249.10
b51a:901b:cb15:8045:ada8:eb24:e9dd:f90b 233.221.249.11
b51a:901b:cb15:8045:ada8:eb24:e9dd:f90c 233.221.249.12
b51a:901b:cb15:8045:ada8:eb24:e9dd:f90d 233.221.249.13
b51a:901b:cb15:8045:ada8:eb24:e9dd:f90e 233.221.249.14
b51a:901b:cb15:8045:ada8:eb24:e9dd:f90f 233.221.249.15
b51a:901b:cb15:8045:ada8:eb24:e9dd:f910 233.221.249.16
b51a:901b:cb15:8045:ada8:eb24:e9dd:f911 233.221.249.17
b51a:901b:cb15:8045:ada8:eb24:e9dd:f912 233.221.249.18
b51a:901b:cb15:8045:ada8:eb24:e9dd:f913 233.221.249.19
b51a:901b:cb15:8045:ada8:eb24:e9dd:f914 233.221.249.20
b51a:901b:cb15:8045:ada8:eb24:e9dd:f915 233.221.249.21
b51a:901b:cb15:8045:ada8:eb24:e9dd:f916 233.221.249.22
b51a:901b:cb15:8045:ada8:eb24:e9dd:f917 233.221.249.23
b51a:901b:cb15:8045:ada8:eb24:e9dd:f918 233.221.249.24
b51a:901b:cb15:8045:ada8:eb24:e9dd:f919 233.221.249.25
b51a:901b:cb15:8045:ada8:eb24:e9dd:f91a 233.221.249.26
b51a:901b:cb15:8045:ada8:eb24:e9dd:f91b 233.221.249.27
b51a:901b:cb15:8045:ada8:eb24:e9dd:f91c 233.221.249.28
b51a:901b:cb15:8045:ada8:eb24:e9dd:f91d 233.221.249.29
b51a:901b:cb15:8045:ada8:eb24:e9dd:f91e 233.221.249.30
b51a:901b:cb15:8045:ada8:eb24:e9dd:f91f 233.221.249.31
b51a:901b:cb15:8045:ada8:eb24:e9dd:f920 233.221.249.32
b51a:901b:cb15:8045:ada8:eb24:e9dd:f921 233.221.249.33
b51a:901b:cb15:8045:ada8:eb24:e9dd:f922 233.221.249.34
b51a:901b:cb15:8045:ada8:eb24:e9dd:f923 233.221.249.35
b51a:901b:cb15:8045:ada8:eb24:e9dd:f924 233.221.249.36
b51a:901b:cb15:8045:ada8:eb24:e9dd:f925 233.221.249.37
b51a:901b:cb15:8045:ada8:eb24:e9dd:f926 233.221.249.38
b51a:901b:cb15:8045:ada8:eb24:e9dd:f927 233.221.249.39
b51a:901b:cb15:8045:ada8:eb24:e9dd:f928 233.221.249.40
b51a:901b:cb15:8045:ada8:eb24:e9dd:f929 233.221.249.41
b51a:901b:cb15:8045:ada8:eb24:e9dd:f92a 233.221.249.42
b51a:901b:cb15:8045:ada8:eb24:e9dd:f92b 233.221.249.43
b51a:901b:cb15:8045:ada8:eb24:e9dd:f92c 233.221.249.44
b51a:901b:cb15:8045:ada8:eb24:e9dd:f92d 233.221.249.45
b51a:901b:cb15:8045:ada8:eb24:e9dd:f92e 233.221.249.46
b51a:901b:cb15:8045:ada8:eb24:e9dd:f92f 233.221.249.47
b51a:901b:cb15:8045:ada8:eb24:e9dd:f930 233.221.249.48
b51a:901b:cb15:8045:ada8:eb24:e9dd:f931 233.221.249.49
b51a:901b:cb15:8045:ada8:eb24:e9dd:f932 233.221.249.50
b51a:901b:cb15:8045:ada8:eb24:e9dd:f933 233.221.249.51
b51a:901b:cb15:8045:ada8:eb24:e9dd:f934 233.221.249.52
b51a:901b:cb15:8045:ada8:eb24:e9dd:f935 233.221.249.53
b51a:901b:cb15:8045:ada8:eb24:e9dd:f936 233.221.249.54
b51a:901b:cb15:8045:ada8:eb24:e9dd:f937 233.221.249.55
b51a:901b:cb15:8045:ada8:eb24:e9dd:f938 233.221.249.56
b51a:901b:cb15:8045:ada8:eb24:e9dd:f939 233.221.249.57
b51a:901b:cb15:8045:ada8:eb24:e9dd:f93a 233.221.249.58
b51a:901b:cb15:8045:ada8:eb24:e9dd:f93b 233.221.249.59
b51a:901b:cb15:8045:ada8:eb24:e9dd:f93c 233.221.249.60


b51a:901b:cb15:8045:ada8:eb24:e9dd:f93d 233.221.249.61
b51a:901b:cb15:8045:ada8:eb24:e9dd:f93e 233.221.249.62
b51a:901b:cb15:8045:ada8:eb24:e9dd:f93f 233.221.249.63
b51a:901b:cb15:8045:ada8:eb24:e9dd:f940 233.221.249.64
b51a:901b:cb15:8045:ada8:eb24:e9dd:f941 233.221.249.65
b51a:901b:cb15:8045:ada8:eb24:e9dd:f942 233.221.249.66
b51a:901b:cb15:8045:ada8:eb24:e9dd:f943 233.221.249.67
b51a:901b:cb15:8045:ada8:eb24:e9dd:f944 233.221.249.68
b51a:901b:cb15:8045:ada8:eb24:e9dd:f945 233.221.249.69
b51a:901b:cb15:8045:ada8:eb24:e9dd:f946 233.221.249.70
b51a:901b:cb15:8045:ada8:eb24:e9dd:f947 233.221.249.71
b51a:901b:cb15:8045:ada8:eb24:e9dd:f948 233.221.249.72
b51a:901b:cb15:8045:ada8:eb24:e9dd:f949 233.221.249.73
b51a:901b:cb15:8045:ada8:eb24:e9dd:f94a 233.221.249.74
b51a:901b:cb15:8045:ada8:eb24:e9dd:f94b 233.221.249.75
b51a:901b:cb15:8045:ada8:eb24:e9dd:f94c 233.221.249.76
b51a:901b:cb15:8045:ada8:eb24:e9dd:f94d 233.221.249.77
b51a:901b:cb15:8045:ada8:eb24:e9dd:f94e 233.221.249.78
b51a:901b:cb15:8045:ada8:eb24:e9dd:f94f 233.221.249.79
b51a:901b:cb15:8045:ada8:eb24:e9dd:f950 233.221.249.80
b51a:901b:cb15:8045:ada8:eb24:e9dd:f951 233.221.249.81
b51a:901b:cb15:8045:ada8:eb24:e9dd:f952 233.221.249.82
b51a:901b:cb15:8045:ada8:eb24:e9dd:f953 233.221.249.83
b51a:901b:cb15:8045:ada8:eb24:e9dd:f954 233.221.249.84
b51a:901b:cb15:8045:ada8:eb24:e9dd:f955 233.221.249.85
b51a:901b:cb15:8045:ada8:eb24:e9dd:f956 233.221.249.86
b51a:901b:cb15:8045:ada8:eb24:e9dd:f957 233.221.249.87
b51a:901b:cb15:8045:ada8:eb24:e9dd:f958 233.221.249.88
b51a:901b:cb15:8045:ada8:eb24:e9dd:f959 233.221.249.89
b51a:901b:cb15:8045:ada8:eb24:e9dd:f95a 233.221.249.90
b51a:901b:cb15:8045:ada8:eb24:e9dd:f95b 233.221.249.91
b51a:901b:cb15:8045:ada8:eb24:e9dd:f95c 233.221.249.92
b51a:901b:cb15:8045:ada8:eb24:e9dd:f95d 233.221.249.93
b51a:901b:cb15:8045:ada8:eb24:e9dd:f95e 233.221.249.94
b51a:901b:cb15:8045:ada8:eb24:e9dd:f95f 233.221.249.95
b51a:901b:cb15:8045:ada8:eb24:e9dd:f960 233.221.249.96
b51a:901b:cb15:8045:ada8:eb24:e9dd:f961 233.221.249.97
b51a:901b:cb15:8045:ada8:eb24:e9dd:f962 233.221.249.98
b51a:901b:cb15:8045:ada8:eb24:e9dd:f963 233.221.249.99
b51a:901b:cb15:8045:ada8:eb24:e9dd:f964 233.221.249.100
b51a:901b:cb15:8045:ada8:eb24:e9dd:f965 233.221.249.101
b51a:901b:cb15:8045:ada8:eb24:e9dd:f966 233.221.249.102
b51a:901b:cb15:8045:ada8:eb24:e9dd:f967 233.221.249.103
b51a:901b:cb15:8045:ada8:eb24:e9dd:f968 233.221.249.104
b51a:901b:cb15:8045:ada8:eb24:e9dd:f969 233.221.249.105
b51a:901b:cb15:8045:ada8:eb24:e9dd:f96a 233.221.249.106
b51a:901b:cb15:8045:ada8:eb24:e9dd:f96b 233.221.249.107
b51a:901b:cb15:8045:ada8:eb24:e9dd:f96c 233.221.249.108
b51a:901b:cb15:8045:ada8:eb24:e9dd:f96d 233.221.249.109
b51a:901b:cb15:8045:ada8:eb24:e9dd:f96e 233.221.249.110
b51a:901b:cb15:8045:ada8:eb24:e9dd:f96f 233.221.249.111
b51a:901b:cb15:8045:ada8:eb24:e9dd:f970 233.221.249.112
b51a:901b:cb15:8045:ada8:eb24:e9dd:f971 233.221.249.113
b51a:901b:cb15:8045:ada8:eb24:e9dd:f972 233.221.249.114
b51a:901b:cb15:8045:ada8:eb24:e9dd:f973 233.221.249.115
b51a:901b:cb15:8045:ada8:eb24:e9dd:f974 233.221.249.116
b51a:901b:cb15:8045:ada8:eb24:e9dd:f975 233.221.249.117
b51a:901b:cb15:8045:ada8:eb24:e9dd:f976 233.221.249.118
b51a:901b:cb15:8045:ada8:eb24:e9dd:f977 233.221.249.119
b51a:901b:cb15:8045:ada8:eb24:e9dd:f978 233.221.249.120


b51a:901b:cb15:8045:ada8:eb24:e9dd:f979 233.221.249.121
b51a:901b:cb15:8045:ada8:eb24:e9dd:f97a 233.221.249.122
b51a:901b:cb15:8045:ada8:eb24:e9dd:f97b 233.221.249.123
b51a:901b:cb15:8045:ada8:eb24:e9dd:f97c 233.221.249.124
b51a:901b:cb15:8045:ada8:eb24:e9dd:f97d 233.221.249.125
b51a:901b:cb15:8045:ada8:eb24:e9dd:f97e 233.221.249.126
b51a:901b:cb15:8045:ada8:eb24:e9dd:f97f 233.221.249.127
b51a:901b:cb15:8045:ada8:eb24:e9dd:f980 233.221.249.128
b51a:901b:cb15:8045:ada8:eb24:e9dd:f981 233.221.249.129
b51a:901b:cb15:8045:ada8:eb24:e9dd:f982 233.221.249.130
b51a:901b:cb15:8045:ada8:eb24:e9dd:f983 233.221.249.131
b51a:901b:cb15:8045:ada8:eb24:e9dd:f984 233.221.249.132
b51a:901b:cb15:8045:ada8:eb24:e9dd:f985 233.221.249.133
b51a:901b:cb15:8045:ada8:eb24:e9dd:f986 233.221.249.134
b51a:901b:cb15:8045:ada8:eb24:e9dd:f987 233.221.249.135
b51a:901b:cb15:8045:ada8:eb24:e9dd:f988 233.221.249.136
b51a:901b:cb15:8045:ada8:eb24:e9dd:f989 233.221.249.137
b51a:901b:cb15:8045:ada8:eb24:e9dd:f98a 233.221.249.138
b51a:901b:cb15:8045:ada8:eb24:e9dd:f98b 233.221.249.139
b51a:901b:cb15:8045:ada8:eb24:e9dd:f98c 233.221.249.140
b51a:901b:cb15:8045:ada8:eb24:e9dd:f98d 233.221.249.141
b51a:901b:cb15:8045:ada8:eb24:e9dd:f98e 233.221.249.142
b51a:901b:cb15:8045:ada8:eb24:e9dd:f98f 233.221.249.143
b51a:901b:cb15:8045:ada8:eb24:e9dd:f990 233.221.249.144
b51a:901b:cb15:8045:ada8:eb24:e9dd:f991 233.221.249.145
b51a:901b:cb15:8045:ada8:eb24:e9dd:f992 233.221.249.146
b51a:901b:cb15:8045:ada8:eb24:e9dd:f993 233.221.249.147
b51a:901b:cb15:8045:ada8:eb24:e9dd:f994 233.221.249.148
b51a:901b:cb15:8045:ada8:eb24:e9dd:f995 233.221.249.149
b51a:901b:cb15:8045:ada8:eb24:e9dd:f996 233.221.249.150
b51a:901b:cb15:8045:ada8:eb24:e9dd:f997 233.221.249.151
b51a:901b:cb15:8045:ada8:eb24:e9dd:f998 233.221.249.152
b51a:901b:cb15:8045:ada8:eb24:e9dd:f999 233.221.249.153
b51a:901b:cb15:8045:ada8:eb24:e9dd:f99a 233.221.249.154
b51a:901b:cb15:8045:ada8:eb24:e9dd:f99b 233.221.249.155
b51a:901b:cb15:8045:ada8:eb24:e9dd:f99c 233.221.249.156
b51a:901b:cb15:8045:ada8:eb24:e9dd:f99d 233.221.249.157
b51a:901b:cb15:8045:ada8:eb24:e9dd:f99e 233.221.249.158
b51a:901b:cb15:8045:ada8:eb24:e9dd:f99f 233.221.249.159
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9a0 233.221.249.160
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9a1 233.221.249.161
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9a2 233.221.249.162
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9a3 233.221.249.163
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9a4 233.221.249.164
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9a5 233.221.249.165
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9a6 233.221.249.166
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9a7 233.221.249.167
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9a8 233.221.249.168
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9a9 233.221.249.169
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9aa 233.221.249.170
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ab 233.221.249.171
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ac 233.221.249.172
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ad 233.221.249.173
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ae 233.221.249.174
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9af 233.221.249.175
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9b0 233.221.249.176
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9b1 233.221.249.177
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9b2 233.221.249.178
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9b3 233.221.249.179
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9b4 233.221.249.180


b51a:901b:cb15:8045:ada8:eb24:e9dd:f9b5 233.221.249.181
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9b6 233.221.249.182
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9b7 233.221.249.183
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9b8 233.221.249.184
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9b9 233.221.249.185
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ba 233.221.249.186
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9bb 233.221.249.187
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9bc 233.221.249.188
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9bd 233.221.249.189
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9be 233.221.249.190
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9bf 233.221.249.191
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9c0 233.221.249.192
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9c1 233.221.249.193
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9c2 233.221.249.194
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9c3 233.221.249.195
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9c4 233.221.249.196
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9c5 233.221.249.197
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9c6 233.221.249.198
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9c7 233.221.249.199
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9c8 233.221.249.200
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9c9 233.221.249.201
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ca 233.221.249.202
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9cb 233.221.249.203
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9cc 233.221.249.204
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9cd 233.221.249.205
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ce 233.221.249.206
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9cf 233.221.249.207
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9d0 233.221.249.208
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9d1 233.221.249.209
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9d2 233.221.249.210
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9d3 233.221.249.211
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9d4 233.221.249.212
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9d5 233.221.249.213
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9d6 233.221.249.214
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9d7 233.221.249.215
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9d8 233.221.249.216
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9d9 233.221.249.217
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9da 233.221.249.218
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9db 233.221.249.219
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9dc 233.221.249.220
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9dd 233.221.249.221
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9de 233.221.249.222
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9df 233.221.249.223
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9e0 233.221.249.224
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9e1 233.221.249.225
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9e2 233.221.249.226
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9e3 233.221.249.227
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9e4 233.221.249.228
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9e5 233.221.249.229
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9e6 233.221.249.230
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9e7 233.221.249.231
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9e8 233.221.249.232
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9e9 233.221.249.233
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ea 233.221.249.234
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9eb 233.221.249.235
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ec 233.221.249.236
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ed 233.221.249.237
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ee 233.221.249.238
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ef 233.221.249.239
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9f0 233.221.249.240
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9f1 233.221.249.241
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9f2 233.221.249.242
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9f3 233.221.249.243
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9f4 233.221.249.244
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9f5 233.221.249.245
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9f6 233.221.249.246
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9f7 233.221.249.247
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9f8 233.221.249.248
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9f9 233.221.249.249
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9fa 233.221.249.250
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9fb 233.221.249.251
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9fc 233.221.249.252
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9fd 233.221.249.253
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9fe 233.221.249.254
b51a:901b:cb15:8045:ada8:eb24:e9dd:f9ff 233.221.249.255

How IPv6 host addresses we calculated?

As we explained above IPv6 IP version is 128 bit long. Our system get IPv6 IP address as input in URL parameter value with its CIDR & get its all host address ranges from our largest database get back its start range and last range with its relevant CIDR at the end final IPv6 which converts into IPv4 IP address by our tool IPv6 to IPv4 converter.