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:cdcd:80fb:a001	128.251.160.1
b51a:901b:cb15:8045:ada8:cdcd:80fb:a002	128.251.160.2
b51a:901b:cb15:8045:ada8:cdcd:80fb:a003	128.251.160.3
b51a:901b:cb15:8045:ada8:cdcd:80fb:a004	128.251.160.4
b51a:901b:cb15:8045:ada8:cdcd:80fb:a005	128.251.160.5
b51a:901b:cb15:8045:ada8:cdcd:80fb:a006	128.251.160.6
b51a:901b:cb15:8045:ada8:cdcd:80fb:a007	128.251.160.7
b51a:901b:cb15:8045:ada8:cdcd:80fb:a008	128.251.160.8
b51a:901b:cb15:8045:ada8:cdcd:80fb:a009	128.251.160.9
b51a:901b:cb15:8045:ada8:cdcd:80fb:a00a	128.251.160.10
b51a:901b:cb15:8045:ada8:cdcd:80fb:a00b	128.251.160.11
b51a:901b:cb15:8045:ada8:cdcd:80fb:a00c	128.251.160.12
b51a:901b:cb15:8045:ada8:cdcd:80fb:a00d	128.251.160.13
b51a:901b:cb15:8045:ada8:cdcd:80fb:a00e	128.251.160.14
b51a:901b:cb15:8045:ada8:cdcd:80fb:a00f	128.251.160.15
b51a:901b:cb15:8045:ada8:cdcd:80fb:a010	128.251.160.16
b51a:901b:cb15:8045:ada8:cdcd:80fb:a011	128.251.160.17
b51a:901b:cb15:8045:ada8:cdcd:80fb:a012	128.251.160.18
b51a:901b:cb15:8045:ada8:cdcd:80fb:a013	128.251.160.19
b51a:901b:cb15:8045:ada8:cdcd:80fb:a014	128.251.160.20
b51a:901b:cb15:8045:ada8:cdcd:80fb:a015	128.251.160.21
b51a:901b:cb15:8045:ada8:cdcd:80fb:a016	128.251.160.22
b51a:901b:cb15:8045:ada8:cdcd:80fb:a017	128.251.160.23
b51a:901b:cb15:8045:ada8:cdcd:80fb:a018	128.251.160.24
b51a:901b:cb15:8045:ada8:cdcd:80fb:a019	128.251.160.25
b51a:901b:cb15:8045:ada8:cdcd:80fb:a01a	128.251.160.26
b51a:901b:cb15:8045:ada8:cdcd:80fb:a01b	128.251.160.27
b51a:901b:cb15:8045:ada8:cdcd:80fb:a01c	128.251.160.28
b51a:901b:cb15:8045:ada8:cdcd:80fb:a01d	128.251.160.29
b51a:901b:cb15:8045:ada8:cdcd:80fb:a01e	128.251.160.30
b51a:901b:cb15:8045:ada8:cdcd:80fb:a01f	128.251.160.31
b51a:901b:cb15:8045:ada8:cdcd:80fb:a020	128.251.160.32
b51a:901b:cb15:8045:ada8:cdcd:80fb:a021	128.251.160.33
b51a:901b:cb15:8045:ada8:cdcd:80fb:a022	128.251.160.34
b51a:901b:cb15:8045:ada8:cdcd:80fb:a023	128.251.160.35
b51a:901b:cb15:8045:ada8:cdcd:80fb:a024	128.251.160.36
b51a:901b:cb15:8045:ada8:cdcd:80fb:a025	128.251.160.37
b51a:901b:cb15:8045:ada8:cdcd:80fb:a026	128.251.160.38
b51a:901b:cb15:8045:ada8:cdcd:80fb:a027	128.251.160.39
b51a:901b:cb15:8045:ada8:cdcd:80fb:a028	128.251.160.40
b51a:901b:cb15:8045:ada8:cdcd:80fb:a029	128.251.160.41
b51a:901b:cb15:8045:ada8:cdcd:80fb:a02a	128.251.160.42
b51a:901b:cb15:8045:ada8:cdcd:80fb:a02b	128.251.160.43
b51a:901b:cb15:8045:ada8:cdcd:80fb:a02c	128.251.160.44
b51a:901b:cb15:8045:ada8:cdcd:80fb:a02d	128.251.160.45
b51a:901b:cb15:8045:ada8:cdcd:80fb:a02e	128.251.160.46
b51a:901b:cb15:8045:ada8:cdcd:80fb:a02f	128.251.160.47
b51a:901b:cb15:8045:ada8:cdcd:80fb:a030	128.251.160.48
b51a:901b:cb15:8045:ada8:cdcd:80fb:a031	128.251.160.49
b51a:901b:cb15:8045:ada8:cdcd:80fb:a032	128.251.160.50
b51a:901b:cb15:8045:ada8:cdcd:80fb:a033	128.251.160.51
b51a:901b:cb15:8045:ada8:cdcd:80fb:a034	128.251.160.52
b51a:901b:cb15:8045:ada8:cdcd:80fb:a035	128.251.160.53
b51a:901b:cb15:8045:ada8:cdcd:80fb:a036	128.251.160.54
b51a:901b:cb15:8045:ada8:cdcd:80fb:a037	128.251.160.55
b51a:901b:cb15:8045:ada8:cdcd:80fb:a038	128.251.160.56
b51a:901b:cb15:8045:ada8:cdcd:80fb:a039	128.251.160.57
b51a:901b:cb15:8045:ada8:cdcd:80fb:a03a	128.251.160.58
b51a:901b:cb15:8045:ada8:cdcd:80fb:a03b	128.251.160.59
b51a:901b:cb15:8045:ada8:cdcd:80fb:a03c	128.251.160.60

b51a:901b:cb15:8045:ada8:cdcd:80fb:a03d	128.251.160.61
b51a:901b:cb15:8045:ada8:cdcd:80fb:a03e	128.251.160.62
b51a:901b:cb15:8045:ada8:cdcd:80fb:a03f	128.251.160.63
b51a:901b:cb15:8045:ada8:cdcd:80fb:a040	128.251.160.64
b51a:901b:cb15:8045:ada8:cdcd:80fb:a041	128.251.160.65
b51a:901b:cb15:8045:ada8:cdcd:80fb:a042	128.251.160.66
b51a:901b:cb15:8045:ada8:cdcd:80fb:a043	128.251.160.67
b51a:901b:cb15:8045:ada8:cdcd:80fb:a044	128.251.160.68
b51a:901b:cb15:8045:ada8:cdcd:80fb:a045	128.251.160.69
b51a:901b:cb15:8045:ada8:cdcd:80fb:a046	128.251.160.70
b51a:901b:cb15:8045:ada8:cdcd:80fb:a047	128.251.160.71
b51a:901b:cb15:8045:ada8:cdcd:80fb:a048	128.251.160.72
b51a:901b:cb15:8045:ada8:cdcd:80fb:a049	128.251.160.73
b51a:901b:cb15:8045:ada8:cdcd:80fb:a04a	128.251.160.74
b51a:901b:cb15:8045:ada8:cdcd:80fb:a04b	128.251.160.75
b51a:901b:cb15:8045:ada8:cdcd:80fb:a04c	128.251.160.76
b51a:901b:cb15:8045:ada8:cdcd:80fb:a04d	128.251.160.77
b51a:901b:cb15:8045:ada8:cdcd:80fb:a04e	128.251.160.78
b51a:901b:cb15:8045:ada8:cdcd:80fb:a04f	128.251.160.79
b51a:901b:cb15:8045:ada8:cdcd:80fb:a050	128.251.160.80
b51a:901b:cb15:8045:ada8:cdcd:80fb:a051	128.251.160.81
b51a:901b:cb15:8045:ada8:cdcd:80fb:a052	128.251.160.82
b51a:901b:cb15:8045:ada8:cdcd:80fb:a053	128.251.160.83
b51a:901b:cb15:8045:ada8:cdcd:80fb:a054	128.251.160.84
b51a:901b:cb15:8045:ada8:cdcd:80fb:a055	128.251.160.85
b51a:901b:cb15:8045:ada8:cdcd:80fb:a056	128.251.160.86
b51a:901b:cb15:8045:ada8:cdcd:80fb:a057	128.251.160.87
b51a:901b:cb15:8045:ada8:cdcd:80fb:a058	128.251.160.88
b51a:901b:cb15:8045:ada8:cdcd:80fb:a059	128.251.160.89
b51a:901b:cb15:8045:ada8:cdcd:80fb:a05a	128.251.160.90
b51a:901b:cb15:8045:ada8:cdcd:80fb:a05b	128.251.160.91
b51a:901b:cb15:8045:ada8:cdcd:80fb:a05c	128.251.160.92
b51a:901b:cb15:8045:ada8:cdcd:80fb:a05d	128.251.160.93
b51a:901b:cb15:8045:ada8:cdcd:80fb:a05e	128.251.160.94
b51a:901b:cb15:8045:ada8:cdcd:80fb:a05f	128.251.160.95
b51a:901b:cb15:8045:ada8:cdcd:80fb:a060	128.251.160.96
b51a:901b:cb15:8045:ada8:cdcd:80fb:a061	128.251.160.97
b51a:901b:cb15:8045:ada8:cdcd:80fb:a062	128.251.160.98
b51a:901b:cb15:8045:ada8:cdcd:80fb:a063	128.251.160.99
b51a:901b:cb15:8045:ada8:cdcd:80fb:a064	128.251.160.100
b51a:901b:cb15:8045:ada8:cdcd:80fb:a065	128.251.160.101
b51a:901b:cb15:8045:ada8:cdcd:80fb:a066	128.251.160.102
b51a:901b:cb15:8045:ada8:cdcd:80fb:a067	128.251.160.103
b51a:901b:cb15:8045:ada8:cdcd:80fb:a068	128.251.160.104
b51a:901b:cb15:8045:ada8:cdcd:80fb:a069	128.251.160.105
b51a:901b:cb15:8045:ada8:cdcd:80fb:a06a	128.251.160.106
b51a:901b:cb15:8045:ada8:cdcd:80fb:a06b	128.251.160.107
b51a:901b:cb15:8045:ada8:cdcd:80fb:a06c	128.251.160.108
b51a:901b:cb15:8045:ada8:cdcd:80fb:a06d	128.251.160.109
b51a:901b:cb15:8045:ada8:cdcd:80fb:a06e	128.251.160.110
b51a:901b:cb15:8045:ada8:cdcd:80fb:a06f	128.251.160.111
b51a:901b:cb15:8045:ada8:cdcd:80fb:a070	128.251.160.112
b51a:901b:cb15:8045:ada8:cdcd:80fb:a071	128.251.160.113
b51a:901b:cb15:8045:ada8:cdcd:80fb:a072	128.251.160.114
b51a:901b:cb15:8045:ada8:cdcd:80fb:a073	128.251.160.115
b51a:901b:cb15:8045:ada8:cdcd:80fb:a074	128.251.160.116
b51a:901b:cb15:8045:ada8:cdcd:80fb:a075	128.251.160.117
b51a:901b:cb15:8045:ada8:cdcd:80fb:a076	128.251.160.118
b51a:901b:cb15:8045:ada8:cdcd:80fb:a077	128.251.160.119
b51a:901b:cb15:8045:ada8:cdcd:80fb:a078	128.251.160.120

b51a:901b:cb15:8045:ada8:cdcd:80fb:a079	128.251.160.121
b51a:901b:cb15:8045:ada8:cdcd:80fb:a07a	128.251.160.122
b51a:901b:cb15:8045:ada8:cdcd:80fb:a07b	128.251.160.123
b51a:901b:cb15:8045:ada8:cdcd:80fb:a07c	128.251.160.124
b51a:901b:cb15:8045:ada8:cdcd:80fb:a07d	128.251.160.125
b51a:901b:cb15:8045:ada8:cdcd:80fb:a07e	128.251.160.126
b51a:901b:cb15:8045:ada8:cdcd:80fb:a07f	128.251.160.127
b51a:901b:cb15:8045:ada8:cdcd:80fb:a080	128.251.160.128
b51a:901b:cb15:8045:ada8:cdcd:80fb:a081	128.251.160.129
b51a:901b:cb15:8045:ada8:cdcd:80fb:a082	128.251.160.130
b51a:901b:cb15:8045:ada8:cdcd:80fb:a083	128.251.160.131
b51a:901b:cb15:8045:ada8:cdcd:80fb:a084	128.251.160.132
b51a:901b:cb15:8045:ada8:cdcd:80fb:a085	128.251.160.133
b51a:901b:cb15:8045:ada8:cdcd:80fb:a086	128.251.160.134
b51a:901b:cb15:8045:ada8:cdcd:80fb:a087	128.251.160.135
b51a:901b:cb15:8045:ada8:cdcd:80fb:a088	128.251.160.136
b51a:901b:cb15:8045:ada8:cdcd:80fb:a089	128.251.160.137
b51a:901b:cb15:8045:ada8:cdcd:80fb:a08a	128.251.160.138
b51a:901b:cb15:8045:ada8:cdcd:80fb:a08b	128.251.160.139
b51a:901b:cb15:8045:ada8:cdcd:80fb:a08c	128.251.160.140
b51a:901b:cb15:8045:ada8:cdcd:80fb:a08d	128.251.160.141
b51a:901b:cb15:8045:ada8:cdcd:80fb:a08e	128.251.160.142
b51a:901b:cb15:8045:ada8:cdcd:80fb:a08f	128.251.160.143
b51a:901b:cb15:8045:ada8:cdcd:80fb:a090	128.251.160.144
b51a:901b:cb15:8045:ada8:cdcd:80fb:a091	128.251.160.145
b51a:901b:cb15:8045:ada8:cdcd:80fb:a092	128.251.160.146
b51a:901b:cb15:8045:ada8:cdcd:80fb:a093	128.251.160.147
b51a:901b:cb15:8045:ada8:cdcd:80fb:a094	128.251.160.148
b51a:901b:cb15:8045:ada8:cdcd:80fb:a095	128.251.160.149
b51a:901b:cb15:8045:ada8:cdcd:80fb:a096	128.251.160.150
b51a:901b:cb15:8045:ada8:cdcd:80fb:a097	128.251.160.151
b51a:901b:cb15:8045:ada8:cdcd:80fb:a098	128.251.160.152
b51a:901b:cb15:8045:ada8:cdcd:80fb:a099	128.251.160.153
b51a:901b:cb15:8045:ada8:cdcd:80fb:a09a	128.251.160.154
b51a:901b:cb15:8045:ada8:cdcd:80fb:a09b	128.251.160.155
b51a:901b:cb15:8045:ada8:cdcd:80fb:a09c	128.251.160.156
b51a:901b:cb15:8045:ada8:cdcd:80fb:a09d	128.251.160.157
b51a:901b:cb15:8045:ada8:cdcd:80fb:a09e	128.251.160.158
b51a:901b:cb15:8045:ada8:cdcd:80fb:a09f	128.251.160.159
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0a0	128.251.160.160
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0a1	128.251.160.161
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0a2	128.251.160.162
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0a3	128.251.160.163
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0a4	128.251.160.164
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0a5	128.251.160.165
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0a6	128.251.160.166
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0a7	128.251.160.167
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0a8	128.251.160.168
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0a9	128.251.160.169
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0aa	128.251.160.170
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ab	128.251.160.171
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ac	128.251.160.172
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ad	128.251.160.173
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ae	128.251.160.174
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0af	128.251.160.175
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0b0	128.251.160.176
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0b1	128.251.160.177
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0b2	128.251.160.178
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0b3	128.251.160.179
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0b4	128.251.160.180

b51a:901b:cb15:8045:ada8:cdcd:80fb:a0b5	128.251.160.181
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0b6	128.251.160.182
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0b7	128.251.160.183
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0b8	128.251.160.184
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0b9	128.251.160.185
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ba	128.251.160.186
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0bb	128.251.160.187
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0bc	128.251.160.188
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0bd	128.251.160.189
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0be	128.251.160.190
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0bf	128.251.160.191
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0c0	128.251.160.192
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0c1	128.251.160.193
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0c2	128.251.160.194
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0c3	128.251.160.195
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0c4	128.251.160.196
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0c5	128.251.160.197
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0c6	128.251.160.198
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0c7	128.251.160.199
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0c8	128.251.160.200
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0c9	128.251.160.201
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ca	128.251.160.202
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0cb	128.251.160.203
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0cc	128.251.160.204
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0cd	128.251.160.205
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ce	128.251.160.206
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0cf	128.251.160.207
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0d0	128.251.160.208
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0d1	128.251.160.209
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0d2	128.251.160.210
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0d3	128.251.160.211
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0d4	128.251.160.212
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0d5	128.251.160.213
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0d6	128.251.160.214
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0d7	128.251.160.215
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0d8	128.251.160.216
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0d9	128.251.160.217
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0da	128.251.160.218
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0db	128.251.160.219
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0dc	128.251.160.220
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0dd	128.251.160.221
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0de	128.251.160.222
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0df	128.251.160.223
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0e0	128.251.160.224
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0e1	128.251.160.225
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0e2	128.251.160.226
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0e3	128.251.160.227
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0e4	128.251.160.228
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0e5	128.251.160.229
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0e6	128.251.160.230
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0e7	128.251.160.231
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0e8	128.251.160.232
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0e9	128.251.160.233
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ea	128.251.160.234
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0eb	128.251.160.235
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ec	128.251.160.236
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ed	128.251.160.237
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ee	128.251.160.238
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ef	128.251.160.239
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0f0	128.251.160.240
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0f1	128.251.160.241
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0f2	128.251.160.242
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0f3	128.251.160.243
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0f4	128.251.160.244
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0f5	128.251.160.245
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0f6	128.251.160.246
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0f7	128.251.160.247
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0f8	128.251.160.248
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0f9	128.251.160.249
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0fa	128.251.160.250
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0fb	128.251.160.251
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0fc	128.251.160.252
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0fd	128.251.160.253
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0fe	128.251.160.254
b51a:901b:cb15:8045:ada8:cdcd:80fb:a0ff	128.251.160.255

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.