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:b001	128.251.176.1
b51a:901b:cb15:8045:ada8:cdcd:80fb:b002	128.251.176.2
b51a:901b:cb15:8045:ada8:cdcd:80fb:b003	128.251.176.3
b51a:901b:cb15:8045:ada8:cdcd:80fb:b004	128.251.176.4
b51a:901b:cb15:8045:ada8:cdcd:80fb:b005	128.251.176.5
b51a:901b:cb15:8045:ada8:cdcd:80fb:b006	128.251.176.6
b51a:901b:cb15:8045:ada8:cdcd:80fb:b007	128.251.176.7
b51a:901b:cb15:8045:ada8:cdcd:80fb:b008	128.251.176.8
b51a:901b:cb15:8045:ada8:cdcd:80fb:b009	128.251.176.9
b51a:901b:cb15:8045:ada8:cdcd:80fb:b00a	128.251.176.10
b51a:901b:cb15:8045:ada8:cdcd:80fb:b00b	128.251.176.11
b51a:901b:cb15:8045:ada8:cdcd:80fb:b00c	128.251.176.12
b51a:901b:cb15:8045:ada8:cdcd:80fb:b00d	128.251.176.13
b51a:901b:cb15:8045:ada8:cdcd:80fb:b00e	128.251.176.14
b51a:901b:cb15:8045:ada8:cdcd:80fb:b00f	128.251.176.15
b51a:901b:cb15:8045:ada8:cdcd:80fb:b010	128.251.176.16
b51a:901b:cb15:8045:ada8:cdcd:80fb:b011	128.251.176.17
b51a:901b:cb15:8045:ada8:cdcd:80fb:b012	128.251.176.18
b51a:901b:cb15:8045:ada8:cdcd:80fb:b013	128.251.176.19
b51a:901b:cb15:8045:ada8:cdcd:80fb:b014	128.251.176.20
b51a:901b:cb15:8045:ada8:cdcd:80fb:b015	128.251.176.21
b51a:901b:cb15:8045:ada8:cdcd:80fb:b016	128.251.176.22
b51a:901b:cb15:8045:ada8:cdcd:80fb:b017	128.251.176.23
b51a:901b:cb15:8045:ada8:cdcd:80fb:b018	128.251.176.24
b51a:901b:cb15:8045:ada8:cdcd:80fb:b019	128.251.176.25
b51a:901b:cb15:8045:ada8:cdcd:80fb:b01a	128.251.176.26
b51a:901b:cb15:8045:ada8:cdcd:80fb:b01b	128.251.176.27
b51a:901b:cb15:8045:ada8:cdcd:80fb:b01c	128.251.176.28
b51a:901b:cb15:8045:ada8:cdcd:80fb:b01d	128.251.176.29
b51a:901b:cb15:8045:ada8:cdcd:80fb:b01e	128.251.176.30
b51a:901b:cb15:8045:ada8:cdcd:80fb:b01f	128.251.176.31
b51a:901b:cb15:8045:ada8:cdcd:80fb:b020	128.251.176.32
b51a:901b:cb15:8045:ada8:cdcd:80fb:b021	128.251.176.33
b51a:901b:cb15:8045:ada8:cdcd:80fb:b022	128.251.176.34
b51a:901b:cb15:8045:ada8:cdcd:80fb:b023	128.251.176.35
b51a:901b:cb15:8045:ada8:cdcd:80fb:b024	128.251.176.36
b51a:901b:cb15:8045:ada8:cdcd:80fb:b025	128.251.176.37
b51a:901b:cb15:8045:ada8:cdcd:80fb:b026	128.251.176.38
b51a:901b:cb15:8045:ada8:cdcd:80fb:b027	128.251.176.39
b51a:901b:cb15:8045:ada8:cdcd:80fb:b028	128.251.176.40
b51a:901b:cb15:8045:ada8:cdcd:80fb:b029	128.251.176.41
b51a:901b:cb15:8045:ada8:cdcd:80fb:b02a	128.251.176.42
b51a:901b:cb15:8045:ada8:cdcd:80fb:b02b	128.251.176.43
b51a:901b:cb15:8045:ada8:cdcd:80fb:b02c	128.251.176.44
b51a:901b:cb15:8045:ada8:cdcd:80fb:b02d	128.251.176.45
b51a:901b:cb15:8045:ada8:cdcd:80fb:b02e	128.251.176.46
b51a:901b:cb15:8045:ada8:cdcd:80fb:b02f	128.251.176.47
b51a:901b:cb15:8045:ada8:cdcd:80fb:b030	128.251.176.48
b51a:901b:cb15:8045:ada8:cdcd:80fb:b031	128.251.176.49
b51a:901b:cb15:8045:ada8:cdcd:80fb:b032	128.251.176.50
b51a:901b:cb15:8045:ada8:cdcd:80fb:b033	128.251.176.51
b51a:901b:cb15:8045:ada8:cdcd:80fb:b034	128.251.176.52
b51a:901b:cb15:8045:ada8:cdcd:80fb:b035	128.251.176.53
b51a:901b:cb15:8045:ada8:cdcd:80fb:b036	128.251.176.54
b51a:901b:cb15:8045:ada8:cdcd:80fb:b037	128.251.176.55
b51a:901b:cb15:8045:ada8:cdcd:80fb:b038	128.251.176.56
b51a:901b:cb15:8045:ada8:cdcd:80fb:b039	128.251.176.57
b51a:901b:cb15:8045:ada8:cdcd:80fb:b03a	128.251.176.58
b51a:901b:cb15:8045:ada8:cdcd:80fb:b03b	128.251.176.59
b51a:901b:cb15:8045:ada8:cdcd:80fb:b03c	128.251.176.60

b51a:901b:cb15:8045:ada8:cdcd:80fb:b03d	128.251.176.61
b51a:901b:cb15:8045:ada8:cdcd:80fb:b03e	128.251.176.62
b51a:901b:cb15:8045:ada8:cdcd:80fb:b03f	128.251.176.63
b51a:901b:cb15:8045:ada8:cdcd:80fb:b040	128.251.176.64
b51a:901b:cb15:8045:ada8:cdcd:80fb:b041	128.251.176.65
b51a:901b:cb15:8045:ada8:cdcd:80fb:b042	128.251.176.66
b51a:901b:cb15:8045:ada8:cdcd:80fb:b043	128.251.176.67
b51a:901b:cb15:8045:ada8:cdcd:80fb:b044	128.251.176.68
b51a:901b:cb15:8045:ada8:cdcd:80fb:b045	128.251.176.69
b51a:901b:cb15:8045:ada8:cdcd:80fb:b046	128.251.176.70
b51a:901b:cb15:8045:ada8:cdcd:80fb:b047	128.251.176.71
b51a:901b:cb15:8045:ada8:cdcd:80fb:b048	128.251.176.72
b51a:901b:cb15:8045:ada8:cdcd:80fb:b049	128.251.176.73
b51a:901b:cb15:8045:ada8:cdcd:80fb:b04a	128.251.176.74
b51a:901b:cb15:8045:ada8:cdcd:80fb:b04b	128.251.176.75
b51a:901b:cb15:8045:ada8:cdcd:80fb:b04c	128.251.176.76
b51a:901b:cb15:8045:ada8:cdcd:80fb:b04d	128.251.176.77
b51a:901b:cb15:8045:ada8:cdcd:80fb:b04e	128.251.176.78
b51a:901b:cb15:8045:ada8:cdcd:80fb:b04f	128.251.176.79
b51a:901b:cb15:8045:ada8:cdcd:80fb:b050	128.251.176.80
b51a:901b:cb15:8045:ada8:cdcd:80fb:b051	128.251.176.81
b51a:901b:cb15:8045:ada8:cdcd:80fb:b052	128.251.176.82
b51a:901b:cb15:8045:ada8:cdcd:80fb:b053	128.251.176.83
b51a:901b:cb15:8045:ada8:cdcd:80fb:b054	128.251.176.84
b51a:901b:cb15:8045:ada8:cdcd:80fb:b055	128.251.176.85
b51a:901b:cb15:8045:ada8:cdcd:80fb:b056	128.251.176.86
b51a:901b:cb15:8045:ada8:cdcd:80fb:b057	128.251.176.87
b51a:901b:cb15:8045:ada8:cdcd:80fb:b058	128.251.176.88
b51a:901b:cb15:8045:ada8:cdcd:80fb:b059	128.251.176.89
b51a:901b:cb15:8045:ada8:cdcd:80fb:b05a	128.251.176.90
b51a:901b:cb15:8045:ada8:cdcd:80fb:b05b	128.251.176.91
b51a:901b:cb15:8045:ada8:cdcd:80fb:b05c	128.251.176.92
b51a:901b:cb15:8045:ada8:cdcd:80fb:b05d	128.251.176.93
b51a:901b:cb15:8045:ada8:cdcd:80fb:b05e	128.251.176.94
b51a:901b:cb15:8045:ada8:cdcd:80fb:b05f	128.251.176.95
b51a:901b:cb15:8045:ada8:cdcd:80fb:b060	128.251.176.96
b51a:901b:cb15:8045:ada8:cdcd:80fb:b061	128.251.176.97
b51a:901b:cb15:8045:ada8:cdcd:80fb:b062	128.251.176.98
b51a:901b:cb15:8045:ada8:cdcd:80fb:b063	128.251.176.99
b51a:901b:cb15:8045:ada8:cdcd:80fb:b064	128.251.176.100
b51a:901b:cb15:8045:ada8:cdcd:80fb:b065	128.251.176.101
b51a:901b:cb15:8045:ada8:cdcd:80fb:b066	128.251.176.102
b51a:901b:cb15:8045:ada8:cdcd:80fb:b067	128.251.176.103
b51a:901b:cb15:8045:ada8:cdcd:80fb:b068	128.251.176.104
b51a:901b:cb15:8045:ada8:cdcd:80fb:b069	128.251.176.105
b51a:901b:cb15:8045:ada8:cdcd:80fb:b06a	128.251.176.106
b51a:901b:cb15:8045:ada8:cdcd:80fb:b06b	128.251.176.107
b51a:901b:cb15:8045:ada8:cdcd:80fb:b06c	128.251.176.108
b51a:901b:cb15:8045:ada8:cdcd:80fb:b06d	128.251.176.109
b51a:901b:cb15:8045:ada8:cdcd:80fb:b06e	128.251.176.110
b51a:901b:cb15:8045:ada8:cdcd:80fb:b06f	128.251.176.111
b51a:901b:cb15:8045:ada8:cdcd:80fb:b070	128.251.176.112
b51a:901b:cb15:8045:ada8:cdcd:80fb:b071	128.251.176.113
b51a:901b:cb15:8045:ada8:cdcd:80fb:b072	128.251.176.114
b51a:901b:cb15:8045:ada8:cdcd:80fb:b073	128.251.176.115
b51a:901b:cb15:8045:ada8:cdcd:80fb:b074	128.251.176.116
b51a:901b:cb15:8045:ada8:cdcd:80fb:b075	128.251.176.117
b51a:901b:cb15:8045:ada8:cdcd:80fb:b076	128.251.176.118
b51a:901b:cb15:8045:ada8:cdcd:80fb:b077	128.251.176.119
b51a:901b:cb15:8045:ada8:cdcd:80fb:b078	128.251.176.120

b51a:901b:cb15:8045:ada8:cdcd:80fb:b079	128.251.176.121
b51a:901b:cb15:8045:ada8:cdcd:80fb:b07a	128.251.176.122
b51a:901b:cb15:8045:ada8:cdcd:80fb:b07b	128.251.176.123
b51a:901b:cb15:8045:ada8:cdcd:80fb:b07c	128.251.176.124
b51a:901b:cb15:8045:ada8:cdcd:80fb:b07d	128.251.176.125
b51a:901b:cb15:8045:ada8:cdcd:80fb:b07e	128.251.176.126
b51a:901b:cb15:8045:ada8:cdcd:80fb:b07f	128.251.176.127
b51a:901b:cb15:8045:ada8:cdcd:80fb:b080	128.251.176.128
b51a:901b:cb15:8045:ada8:cdcd:80fb:b081	128.251.176.129
b51a:901b:cb15:8045:ada8:cdcd:80fb:b082	128.251.176.130
b51a:901b:cb15:8045:ada8:cdcd:80fb:b083	128.251.176.131
b51a:901b:cb15:8045:ada8:cdcd:80fb:b084	128.251.176.132
b51a:901b:cb15:8045:ada8:cdcd:80fb:b085	128.251.176.133
b51a:901b:cb15:8045:ada8:cdcd:80fb:b086	128.251.176.134
b51a:901b:cb15:8045:ada8:cdcd:80fb:b087	128.251.176.135
b51a:901b:cb15:8045:ada8:cdcd:80fb:b088	128.251.176.136
b51a:901b:cb15:8045:ada8:cdcd:80fb:b089	128.251.176.137
b51a:901b:cb15:8045:ada8:cdcd:80fb:b08a	128.251.176.138
b51a:901b:cb15:8045:ada8:cdcd:80fb:b08b	128.251.176.139
b51a:901b:cb15:8045:ada8:cdcd:80fb:b08c	128.251.176.140
b51a:901b:cb15:8045:ada8:cdcd:80fb:b08d	128.251.176.141
b51a:901b:cb15:8045:ada8:cdcd:80fb:b08e	128.251.176.142
b51a:901b:cb15:8045:ada8:cdcd:80fb:b08f	128.251.176.143
b51a:901b:cb15:8045:ada8:cdcd:80fb:b090	128.251.176.144
b51a:901b:cb15:8045:ada8:cdcd:80fb:b091	128.251.176.145
b51a:901b:cb15:8045:ada8:cdcd:80fb:b092	128.251.176.146
b51a:901b:cb15:8045:ada8:cdcd:80fb:b093	128.251.176.147
b51a:901b:cb15:8045:ada8:cdcd:80fb:b094	128.251.176.148
b51a:901b:cb15:8045:ada8:cdcd:80fb:b095	128.251.176.149
b51a:901b:cb15:8045:ada8:cdcd:80fb:b096	128.251.176.150
b51a:901b:cb15:8045:ada8:cdcd:80fb:b097	128.251.176.151
b51a:901b:cb15:8045:ada8:cdcd:80fb:b098	128.251.176.152
b51a:901b:cb15:8045:ada8:cdcd:80fb:b099	128.251.176.153
b51a:901b:cb15:8045:ada8:cdcd:80fb:b09a	128.251.176.154
b51a:901b:cb15:8045:ada8:cdcd:80fb:b09b	128.251.176.155
b51a:901b:cb15:8045:ada8:cdcd:80fb:b09c	128.251.176.156
b51a:901b:cb15:8045:ada8:cdcd:80fb:b09d	128.251.176.157
b51a:901b:cb15:8045:ada8:cdcd:80fb:b09e	128.251.176.158
b51a:901b:cb15:8045:ada8:cdcd:80fb:b09f	128.251.176.159
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0a0	128.251.176.160
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0a1	128.251.176.161
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0a2	128.251.176.162
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0a3	128.251.176.163
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0a4	128.251.176.164
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0a5	128.251.176.165
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0a6	128.251.176.166
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0a7	128.251.176.167
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0a8	128.251.176.168
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0a9	128.251.176.169
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0aa	128.251.176.170
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ab	128.251.176.171
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ac	128.251.176.172
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ad	128.251.176.173
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ae	128.251.176.174
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0af	128.251.176.175
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0b0	128.251.176.176
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0b1	128.251.176.177
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0b2	128.251.176.178
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0b3	128.251.176.179
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0b4	128.251.176.180

b51a:901b:cb15:8045:ada8:cdcd:80fb:b0b5	128.251.176.181
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0b6	128.251.176.182
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0b7	128.251.176.183
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0b8	128.251.176.184
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0b9	128.251.176.185
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ba	128.251.176.186
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0bb	128.251.176.187
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0bc	128.251.176.188
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0bd	128.251.176.189
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0be	128.251.176.190
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0bf	128.251.176.191
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0c0	128.251.176.192
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0c1	128.251.176.193
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0c2	128.251.176.194
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0c3	128.251.176.195
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0c4	128.251.176.196
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0c5	128.251.176.197
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0c6	128.251.176.198
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0c7	128.251.176.199
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0c8	128.251.176.200
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0c9	128.251.176.201
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ca	128.251.176.202
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0cb	128.251.176.203
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0cc	128.251.176.204
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0cd	128.251.176.205
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ce	128.251.176.206
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0cf	128.251.176.207
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0d0	128.251.176.208
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0d1	128.251.176.209
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0d2	128.251.176.210
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0d3	128.251.176.211
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0d4	128.251.176.212
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0d5	128.251.176.213
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0d6	128.251.176.214
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0d7	128.251.176.215
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0d8	128.251.176.216
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0d9	128.251.176.217
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0da	128.251.176.218
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0db	128.251.176.219
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0dc	128.251.176.220
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0dd	128.251.176.221
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0de	128.251.176.222
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0df	128.251.176.223
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0e0	128.251.176.224
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0e1	128.251.176.225
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0e2	128.251.176.226
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0e3	128.251.176.227
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0e4	128.251.176.228
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0e5	128.251.176.229
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0e6	128.251.176.230
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0e7	128.251.176.231
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0e8	128.251.176.232
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0e9	128.251.176.233
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ea	128.251.176.234
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0eb	128.251.176.235
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ec	128.251.176.236
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ed	128.251.176.237
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ee	128.251.176.238
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ef	128.251.176.239
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0f0	128.251.176.240
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0f1	128.251.176.241
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0f2	128.251.176.242
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0f3	128.251.176.243
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0f4	128.251.176.244
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0f5	128.251.176.245
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0f6	128.251.176.246
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0f7	128.251.176.247
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0f8	128.251.176.248
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0f9	128.251.176.249
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0fa	128.251.176.250
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0fb	128.251.176.251
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0fc	128.251.176.252
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0fd	128.251.176.253
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0fe	128.251.176.254
b51a:901b:cb15:8045:ada8:cdcd:80fb:b0ff	128.251.176.255

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.