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:e9fc:d001 233.252.208.1
b51a:901b:cb15:8045:ada8:eb24:e9fc:d002 233.252.208.2
b51a:901b:cb15:8045:ada8:eb24:e9fc:d003 233.252.208.3
b51a:901b:cb15:8045:ada8:eb24:e9fc:d004 233.252.208.4
b51a:901b:cb15:8045:ada8:eb24:e9fc:d005 233.252.208.5
b51a:901b:cb15:8045:ada8:eb24:e9fc:d006 233.252.208.6
b51a:901b:cb15:8045:ada8:eb24:e9fc:d007 233.252.208.7
b51a:901b:cb15:8045:ada8:eb24:e9fc:d008 233.252.208.8
b51a:901b:cb15:8045:ada8:eb24:e9fc:d009 233.252.208.9
b51a:901b:cb15:8045:ada8:eb24:e9fc:d00a 233.252.208.10
b51a:901b:cb15:8045:ada8:eb24:e9fc:d00b 233.252.208.11
b51a:901b:cb15:8045:ada8:eb24:e9fc:d00c 233.252.208.12
b51a:901b:cb15:8045:ada8:eb24:e9fc:d00d 233.252.208.13
b51a:901b:cb15:8045:ada8:eb24:e9fc:d00e 233.252.208.14
b51a:901b:cb15:8045:ada8:eb24:e9fc:d00f 233.252.208.15
b51a:901b:cb15:8045:ada8:eb24:e9fc:d010 233.252.208.16
b51a:901b:cb15:8045:ada8:eb24:e9fc:d011 233.252.208.17
b51a:901b:cb15:8045:ada8:eb24:e9fc:d012 233.252.208.18
b51a:901b:cb15:8045:ada8:eb24:e9fc:d013 233.252.208.19
b51a:901b:cb15:8045:ada8:eb24:e9fc:d014 233.252.208.20
b51a:901b:cb15:8045:ada8:eb24:e9fc:d015 233.252.208.21
b51a:901b:cb15:8045:ada8:eb24:e9fc:d016 233.252.208.22
b51a:901b:cb15:8045:ada8:eb24:e9fc:d017 233.252.208.23
b51a:901b:cb15:8045:ada8:eb24:e9fc:d018 233.252.208.24
b51a:901b:cb15:8045:ada8:eb24:e9fc:d019 233.252.208.25
b51a:901b:cb15:8045:ada8:eb24:e9fc:d01a 233.252.208.26
b51a:901b:cb15:8045:ada8:eb24:e9fc:d01b 233.252.208.27
b51a:901b:cb15:8045:ada8:eb24:e9fc:d01c 233.252.208.28
b51a:901b:cb15:8045:ada8:eb24:e9fc:d01d 233.252.208.29
b51a:901b:cb15:8045:ada8:eb24:e9fc:d01e 233.252.208.30
b51a:901b:cb15:8045:ada8:eb24:e9fc:d01f 233.252.208.31
b51a:901b:cb15:8045:ada8:eb24:e9fc:d020 233.252.208.32
b51a:901b:cb15:8045:ada8:eb24:e9fc:d021 233.252.208.33
b51a:901b:cb15:8045:ada8:eb24:e9fc:d022 233.252.208.34
b51a:901b:cb15:8045:ada8:eb24:e9fc:d023 233.252.208.35
b51a:901b:cb15:8045:ada8:eb24:e9fc:d024 233.252.208.36
b51a:901b:cb15:8045:ada8:eb24:e9fc:d025 233.252.208.37
b51a:901b:cb15:8045:ada8:eb24:e9fc:d026 233.252.208.38
b51a:901b:cb15:8045:ada8:eb24:e9fc:d027 233.252.208.39
b51a:901b:cb15:8045:ada8:eb24:e9fc:d028 233.252.208.40
b51a:901b:cb15:8045:ada8:eb24:e9fc:d029 233.252.208.41
b51a:901b:cb15:8045:ada8:eb24:e9fc:d02a 233.252.208.42
b51a:901b:cb15:8045:ada8:eb24:e9fc:d02b 233.252.208.43
b51a:901b:cb15:8045:ada8:eb24:e9fc:d02c 233.252.208.44
b51a:901b:cb15:8045:ada8:eb24:e9fc:d02d 233.252.208.45
b51a:901b:cb15:8045:ada8:eb24:e9fc:d02e 233.252.208.46
b51a:901b:cb15:8045:ada8:eb24:e9fc:d02f 233.252.208.47
b51a:901b:cb15:8045:ada8:eb24:e9fc:d030 233.252.208.48
b51a:901b:cb15:8045:ada8:eb24:e9fc:d031 233.252.208.49
b51a:901b:cb15:8045:ada8:eb24:e9fc:d032 233.252.208.50
b51a:901b:cb15:8045:ada8:eb24:e9fc:d033 233.252.208.51
b51a:901b:cb15:8045:ada8:eb24:e9fc:d034 233.252.208.52
b51a:901b:cb15:8045:ada8:eb24:e9fc:d035 233.252.208.53
b51a:901b:cb15:8045:ada8:eb24:e9fc:d036 233.252.208.54
b51a:901b:cb15:8045:ada8:eb24:e9fc:d037 233.252.208.55
b51a:901b:cb15:8045:ada8:eb24:e9fc:d038 233.252.208.56
b51a:901b:cb15:8045:ada8:eb24:e9fc:d039 233.252.208.57
b51a:901b:cb15:8045:ada8:eb24:e9fc:d03a 233.252.208.58
b51a:901b:cb15:8045:ada8:eb24:e9fc:d03b 233.252.208.59
b51a:901b:cb15:8045:ada8:eb24:e9fc:d03c 233.252.208.60


b51a:901b:cb15:8045:ada8:eb24:e9fc:d03d 233.252.208.61
b51a:901b:cb15:8045:ada8:eb24:e9fc:d03e 233.252.208.62
b51a:901b:cb15:8045:ada8:eb24:e9fc:d03f 233.252.208.63
b51a:901b:cb15:8045:ada8:eb24:e9fc:d040 233.252.208.64
b51a:901b:cb15:8045:ada8:eb24:e9fc:d041 233.252.208.65
b51a:901b:cb15:8045:ada8:eb24:e9fc:d042 233.252.208.66
b51a:901b:cb15:8045:ada8:eb24:e9fc:d043 233.252.208.67
b51a:901b:cb15:8045:ada8:eb24:e9fc:d044 233.252.208.68
b51a:901b:cb15:8045:ada8:eb24:e9fc:d045 233.252.208.69
b51a:901b:cb15:8045:ada8:eb24:e9fc:d046 233.252.208.70
b51a:901b:cb15:8045:ada8:eb24:e9fc:d047 233.252.208.71
b51a:901b:cb15:8045:ada8:eb24:e9fc:d048 233.252.208.72
b51a:901b:cb15:8045:ada8:eb24:e9fc:d049 233.252.208.73
b51a:901b:cb15:8045:ada8:eb24:e9fc:d04a 233.252.208.74
b51a:901b:cb15:8045:ada8:eb24:e9fc:d04b 233.252.208.75
b51a:901b:cb15:8045:ada8:eb24:e9fc:d04c 233.252.208.76
b51a:901b:cb15:8045:ada8:eb24:e9fc:d04d 233.252.208.77
b51a:901b:cb15:8045:ada8:eb24:e9fc:d04e 233.252.208.78
b51a:901b:cb15:8045:ada8:eb24:e9fc:d04f 233.252.208.79
b51a:901b:cb15:8045:ada8:eb24:e9fc:d050 233.252.208.80
b51a:901b:cb15:8045:ada8:eb24:e9fc:d051 233.252.208.81
b51a:901b:cb15:8045:ada8:eb24:e9fc:d052 233.252.208.82
b51a:901b:cb15:8045:ada8:eb24:e9fc:d053 233.252.208.83
b51a:901b:cb15:8045:ada8:eb24:e9fc:d054 233.252.208.84
b51a:901b:cb15:8045:ada8:eb24:e9fc:d055 233.252.208.85
b51a:901b:cb15:8045:ada8:eb24:e9fc:d056 233.252.208.86
b51a:901b:cb15:8045:ada8:eb24:e9fc:d057 233.252.208.87
b51a:901b:cb15:8045:ada8:eb24:e9fc:d058 233.252.208.88
b51a:901b:cb15:8045:ada8:eb24:e9fc:d059 233.252.208.89
b51a:901b:cb15:8045:ada8:eb24:e9fc:d05a 233.252.208.90
b51a:901b:cb15:8045:ada8:eb24:e9fc:d05b 233.252.208.91
b51a:901b:cb15:8045:ada8:eb24:e9fc:d05c 233.252.208.92
b51a:901b:cb15:8045:ada8:eb24:e9fc:d05d 233.252.208.93
b51a:901b:cb15:8045:ada8:eb24:e9fc:d05e 233.252.208.94
b51a:901b:cb15:8045:ada8:eb24:e9fc:d05f 233.252.208.95
b51a:901b:cb15:8045:ada8:eb24:e9fc:d060 233.252.208.96
b51a:901b:cb15:8045:ada8:eb24:e9fc:d061 233.252.208.97
b51a:901b:cb15:8045:ada8:eb24:e9fc:d062 233.252.208.98
b51a:901b:cb15:8045:ada8:eb24:e9fc:d063 233.252.208.99
b51a:901b:cb15:8045:ada8:eb24:e9fc:d064 233.252.208.100
b51a:901b:cb15:8045:ada8:eb24:e9fc:d065 233.252.208.101
b51a:901b:cb15:8045:ada8:eb24:e9fc:d066 233.252.208.102
b51a:901b:cb15:8045:ada8:eb24:e9fc:d067 233.252.208.103
b51a:901b:cb15:8045:ada8:eb24:e9fc:d068 233.252.208.104
b51a:901b:cb15:8045:ada8:eb24:e9fc:d069 233.252.208.105
b51a:901b:cb15:8045:ada8:eb24:e9fc:d06a 233.252.208.106
b51a:901b:cb15:8045:ada8:eb24:e9fc:d06b 233.252.208.107
b51a:901b:cb15:8045:ada8:eb24:e9fc:d06c 233.252.208.108
b51a:901b:cb15:8045:ada8:eb24:e9fc:d06d 233.252.208.109
b51a:901b:cb15:8045:ada8:eb24:e9fc:d06e 233.252.208.110
b51a:901b:cb15:8045:ada8:eb24:e9fc:d06f 233.252.208.111
b51a:901b:cb15:8045:ada8:eb24:e9fc:d070 233.252.208.112
b51a:901b:cb15:8045:ada8:eb24:e9fc:d071 233.252.208.113
b51a:901b:cb15:8045:ada8:eb24:e9fc:d072 233.252.208.114
b51a:901b:cb15:8045:ada8:eb24:e9fc:d073 233.252.208.115
b51a:901b:cb15:8045:ada8:eb24:e9fc:d074 233.252.208.116
b51a:901b:cb15:8045:ada8:eb24:e9fc:d075 233.252.208.117
b51a:901b:cb15:8045:ada8:eb24:e9fc:d076 233.252.208.118
b51a:901b:cb15:8045:ada8:eb24:e9fc:d077 233.252.208.119
b51a:901b:cb15:8045:ada8:eb24:e9fc:d078 233.252.208.120


b51a:901b:cb15:8045:ada8:eb24:e9fc:d079 233.252.208.121
b51a:901b:cb15:8045:ada8:eb24:e9fc:d07a 233.252.208.122
b51a:901b:cb15:8045:ada8:eb24:e9fc:d07b 233.252.208.123
b51a:901b:cb15:8045:ada8:eb24:e9fc:d07c 233.252.208.124
b51a:901b:cb15:8045:ada8:eb24:e9fc:d07d 233.252.208.125
b51a:901b:cb15:8045:ada8:eb24:e9fc:d07e 233.252.208.126
b51a:901b:cb15:8045:ada8:eb24:e9fc:d07f 233.252.208.127
b51a:901b:cb15:8045:ada8:eb24:e9fc:d080 233.252.208.128
b51a:901b:cb15:8045:ada8:eb24:e9fc:d081 233.252.208.129
b51a:901b:cb15:8045:ada8:eb24:e9fc:d082 233.252.208.130
b51a:901b:cb15:8045:ada8:eb24:e9fc:d083 233.252.208.131
b51a:901b:cb15:8045:ada8:eb24:e9fc:d084 233.252.208.132
b51a:901b:cb15:8045:ada8:eb24:e9fc:d085 233.252.208.133
b51a:901b:cb15:8045:ada8:eb24:e9fc:d086 233.252.208.134
b51a:901b:cb15:8045:ada8:eb24:e9fc:d087 233.252.208.135
b51a:901b:cb15:8045:ada8:eb24:e9fc:d088 233.252.208.136
b51a:901b:cb15:8045:ada8:eb24:e9fc:d089 233.252.208.137
b51a:901b:cb15:8045:ada8:eb24:e9fc:d08a 233.252.208.138
b51a:901b:cb15:8045:ada8:eb24:e9fc:d08b 233.252.208.139
b51a:901b:cb15:8045:ada8:eb24:e9fc:d08c 233.252.208.140
b51a:901b:cb15:8045:ada8:eb24:e9fc:d08d 233.252.208.141
b51a:901b:cb15:8045:ada8:eb24:e9fc:d08e 233.252.208.142
b51a:901b:cb15:8045:ada8:eb24:e9fc:d08f 233.252.208.143
b51a:901b:cb15:8045:ada8:eb24:e9fc:d090 233.252.208.144
b51a:901b:cb15:8045:ada8:eb24:e9fc:d091 233.252.208.145
b51a:901b:cb15:8045:ada8:eb24:e9fc:d092 233.252.208.146
b51a:901b:cb15:8045:ada8:eb24:e9fc:d093 233.252.208.147
b51a:901b:cb15:8045:ada8:eb24:e9fc:d094 233.252.208.148
b51a:901b:cb15:8045:ada8:eb24:e9fc:d095 233.252.208.149
b51a:901b:cb15:8045:ada8:eb24:e9fc:d096 233.252.208.150
b51a:901b:cb15:8045:ada8:eb24:e9fc:d097 233.252.208.151
b51a:901b:cb15:8045:ada8:eb24:e9fc:d098 233.252.208.152
b51a:901b:cb15:8045:ada8:eb24:e9fc:d099 233.252.208.153
b51a:901b:cb15:8045:ada8:eb24:e9fc:d09a 233.252.208.154
b51a:901b:cb15:8045:ada8:eb24:e9fc:d09b 233.252.208.155
b51a:901b:cb15:8045:ada8:eb24:e9fc:d09c 233.252.208.156
b51a:901b:cb15:8045:ada8:eb24:e9fc:d09d 233.252.208.157
b51a:901b:cb15:8045:ada8:eb24:e9fc:d09e 233.252.208.158
b51a:901b:cb15:8045:ada8:eb24:e9fc:d09f 233.252.208.159
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0a0 233.252.208.160
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0a1 233.252.208.161
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0a2 233.252.208.162
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0a3 233.252.208.163
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0a4 233.252.208.164
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0a5 233.252.208.165
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0a6 233.252.208.166
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0a7 233.252.208.167
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0a8 233.252.208.168
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0a9 233.252.208.169
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0aa 233.252.208.170
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ab 233.252.208.171
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ac 233.252.208.172
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ad 233.252.208.173
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ae 233.252.208.174
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0af 233.252.208.175
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0b0 233.252.208.176
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0b1 233.252.208.177
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0b2 233.252.208.178
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0b3 233.252.208.179
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0b4 233.252.208.180


b51a:901b:cb15:8045:ada8:eb24:e9fc:d0b5 233.252.208.181
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0b6 233.252.208.182
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0b7 233.252.208.183
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0b8 233.252.208.184
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0b9 233.252.208.185
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ba 233.252.208.186
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0bb 233.252.208.187
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0bc 233.252.208.188
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0bd 233.252.208.189
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0be 233.252.208.190
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0bf 233.252.208.191
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0c0 233.252.208.192
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0c1 233.252.208.193
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0c2 233.252.208.194
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0c3 233.252.208.195
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0c4 233.252.208.196
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0c5 233.252.208.197
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0c6 233.252.208.198
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0c7 233.252.208.199
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0c8 233.252.208.200
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0c9 233.252.208.201
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ca 233.252.208.202
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0cb 233.252.208.203
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0cc 233.252.208.204
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0cd 233.252.208.205
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ce 233.252.208.206
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0cf 233.252.208.207
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0d0 233.252.208.208
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0d1 233.252.208.209
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0d2 233.252.208.210
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0d3 233.252.208.211
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0d4 233.252.208.212
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0d5 233.252.208.213
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0d6 233.252.208.214
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0d7 233.252.208.215
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0d8 233.252.208.216
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0d9 233.252.208.217
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0da 233.252.208.218
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0db 233.252.208.219
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0dc 233.252.208.220
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0dd 233.252.208.221
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0de 233.252.208.222
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0df 233.252.208.223
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0e0 233.252.208.224
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0e1 233.252.208.225
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0e2 233.252.208.226
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0e3 233.252.208.227
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0e4 233.252.208.228
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0e5 233.252.208.229
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0e6 233.252.208.230
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0e7 233.252.208.231
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0e8 233.252.208.232
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0e9 233.252.208.233
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ea 233.252.208.234
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0eb 233.252.208.235
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ec 233.252.208.236
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ed 233.252.208.237
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ee 233.252.208.238
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ef 233.252.208.239
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0f0 233.252.208.240
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0f1 233.252.208.241
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0f2 233.252.208.242
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0f3 233.252.208.243
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0f4 233.252.208.244
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0f5 233.252.208.245
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0f6 233.252.208.246
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0f7 233.252.208.247
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0f8 233.252.208.248
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0f9 233.252.208.249
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0fa 233.252.208.250
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0fb 233.252.208.251
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0fc 233.252.208.252
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0fd 233.252.208.253
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0fe 233.252.208.254
b51a:901b:cb15:8045:ada8:eb24:e9fc:d0ff 233.252.208.255

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.