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:cd72:3fd1:a801	63.209.168.1
b51a:901b:cb15:8045:ada8:cd72:3fd1:a802	63.209.168.2
b51a:901b:cb15:8045:ada8:cd72:3fd1:a803	63.209.168.3
b51a:901b:cb15:8045:ada8:cd72:3fd1:a804	63.209.168.4
b51a:901b:cb15:8045:ada8:cd72:3fd1:a805	63.209.168.5
b51a:901b:cb15:8045:ada8:cd72:3fd1:a806	63.209.168.6
b51a:901b:cb15:8045:ada8:cd72:3fd1:a807	63.209.168.7
b51a:901b:cb15:8045:ada8:cd72:3fd1:a808	63.209.168.8
b51a:901b:cb15:8045:ada8:cd72:3fd1:a809	63.209.168.9
b51a:901b:cb15:8045:ada8:cd72:3fd1:a80a	63.209.168.10
b51a:901b:cb15:8045:ada8:cd72:3fd1:a80b	63.209.168.11
b51a:901b:cb15:8045:ada8:cd72:3fd1:a80c	63.209.168.12
b51a:901b:cb15:8045:ada8:cd72:3fd1:a80d	63.209.168.13
b51a:901b:cb15:8045:ada8:cd72:3fd1:a80e	63.209.168.14
b51a:901b:cb15:8045:ada8:cd72:3fd1:a80f	63.209.168.15
b51a:901b:cb15:8045:ada8:cd72:3fd1:a810	63.209.168.16
b51a:901b:cb15:8045:ada8:cd72:3fd1:a811	63.209.168.17
b51a:901b:cb15:8045:ada8:cd72:3fd1:a812	63.209.168.18
b51a:901b:cb15:8045:ada8:cd72:3fd1:a813	63.209.168.19
b51a:901b:cb15:8045:ada8:cd72:3fd1:a814	63.209.168.20
b51a:901b:cb15:8045:ada8:cd72:3fd1:a815	63.209.168.21
b51a:901b:cb15:8045:ada8:cd72:3fd1:a816	63.209.168.22
b51a:901b:cb15:8045:ada8:cd72:3fd1:a817	63.209.168.23
b51a:901b:cb15:8045:ada8:cd72:3fd1:a818	63.209.168.24
b51a:901b:cb15:8045:ada8:cd72:3fd1:a819	63.209.168.25
b51a:901b:cb15:8045:ada8:cd72:3fd1:a81a	63.209.168.26
b51a:901b:cb15:8045:ada8:cd72:3fd1:a81b	63.209.168.27
b51a:901b:cb15:8045:ada8:cd72:3fd1:a81c	63.209.168.28
b51a:901b:cb15:8045:ada8:cd72:3fd1:a81d	63.209.168.29
b51a:901b:cb15:8045:ada8:cd72:3fd1:a81e	63.209.168.30
b51a:901b:cb15:8045:ada8:cd72:3fd1:a81f	63.209.168.31
b51a:901b:cb15:8045:ada8:cd72:3fd1:a820	63.209.168.32
b51a:901b:cb15:8045:ada8:cd72:3fd1:a821	63.209.168.33
b51a:901b:cb15:8045:ada8:cd72:3fd1:a822	63.209.168.34
b51a:901b:cb15:8045:ada8:cd72:3fd1:a823	63.209.168.35
b51a:901b:cb15:8045:ada8:cd72:3fd1:a824	63.209.168.36
b51a:901b:cb15:8045:ada8:cd72:3fd1:a825	63.209.168.37
b51a:901b:cb15:8045:ada8:cd72:3fd1:a826	63.209.168.38
b51a:901b:cb15:8045:ada8:cd72:3fd1:a827	63.209.168.39
b51a:901b:cb15:8045:ada8:cd72:3fd1:a828	63.209.168.40
b51a:901b:cb15:8045:ada8:cd72:3fd1:a829	63.209.168.41
b51a:901b:cb15:8045:ada8:cd72:3fd1:a82a	63.209.168.42
b51a:901b:cb15:8045:ada8:cd72:3fd1:a82b	63.209.168.43
b51a:901b:cb15:8045:ada8:cd72:3fd1:a82c	63.209.168.44
b51a:901b:cb15:8045:ada8:cd72:3fd1:a82d	63.209.168.45
b51a:901b:cb15:8045:ada8:cd72:3fd1:a82e	63.209.168.46
b51a:901b:cb15:8045:ada8:cd72:3fd1:a82f	63.209.168.47
b51a:901b:cb15:8045:ada8:cd72:3fd1:a830	63.209.168.48
b51a:901b:cb15:8045:ada8:cd72:3fd1:a831	63.209.168.49
b51a:901b:cb15:8045:ada8:cd72:3fd1:a832	63.209.168.50
b51a:901b:cb15:8045:ada8:cd72:3fd1:a833	63.209.168.51
b51a:901b:cb15:8045:ada8:cd72:3fd1:a834	63.209.168.52
b51a:901b:cb15:8045:ada8:cd72:3fd1:a835	63.209.168.53
b51a:901b:cb15:8045:ada8:cd72:3fd1:a836	63.209.168.54
b51a:901b:cb15:8045:ada8:cd72:3fd1:a837	63.209.168.55
b51a:901b:cb15:8045:ada8:cd72:3fd1:a838	63.209.168.56
b51a:901b:cb15:8045:ada8:cd72:3fd1:a839	63.209.168.57
b51a:901b:cb15:8045:ada8:cd72:3fd1:a83a	63.209.168.58
b51a:901b:cb15:8045:ada8:cd72:3fd1:a83b	63.209.168.59
b51a:901b:cb15:8045:ada8:cd72:3fd1:a83c	63.209.168.60

b51a:901b:cb15:8045:ada8:cd72:3fd1:a83d	63.209.168.61
b51a:901b:cb15:8045:ada8:cd72:3fd1:a83e	63.209.168.62
b51a:901b:cb15:8045:ada8:cd72:3fd1:a83f	63.209.168.63
b51a:901b:cb15:8045:ada8:cd72:3fd1:a840	63.209.168.64
b51a:901b:cb15:8045:ada8:cd72:3fd1:a841	63.209.168.65
b51a:901b:cb15:8045:ada8:cd72:3fd1:a842	63.209.168.66
b51a:901b:cb15:8045:ada8:cd72:3fd1:a843	63.209.168.67
b51a:901b:cb15:8045:ada8:cd72:3fd1:a844	63.209.168.68
b51a:901b:cb15:8045:ada8:cd72:3fd1:a845	63.209.168.69
b51a:901b:cb15:8045:ada8:cd72:3fd1:a846	63.209.168.70
b51a:901b:cb15:8045:ada8:cd72:3fd1:a847	63.209.168.71
b51a:901b:cb15:8045:ada8:cd72:3fd1:a848	63.209.168.72
b51a:901b:cb15:8045:ada8:cd72:3fd1:a849	63.209.168.73
b51a:901b:cb15:8045:ada8:cd72:3fd1:a84a	63.209.168.74
b51a:901b:cb15:8045:ada8:cd72:3fd1:a84b	63.209.168.75
b51a:901b:cb15:8045:ada8:cd72:3fd1:a84c	63.209.168.76
b51a:901b:cb15:8045:ada8:cd72:3fd1:a84d	63.209.168.77
b51a:901b:cb15:8045:ada8:cd72:3fd1:a84e	63.209.168.78
b51a:901b:cb15:8045:ada8:cd72:3fd1:a84f	63.209.168.79
b51a:901b:cb15:8045:ada8:cd72:3fd1:a850	63.209.168.80
b51a:901b:cb15:8045:ada8:cd72:3fd1:a851	63.209.168.81
b51a:901b:cb15:8045:ada8:cd72:3fd1:a852	63.209.168.82
b51a:901b:cb15:8045:ada8:cd72:3fd1:a853	63.209.168.83
b51a:901b:cb15:8045:ada8:cd72:3fd1:a854	63.209.168.84
b51a:901b:cb15:8045:ada8:cd72:3fd1:a855	63.209.168.85
b51a:901b:cb15:8045:ada8:cd72:3fd1:a856	63.209.168.86
b51a:901b:cb15:8045:ada8:cd72:3fd1:a857	63.209.168.87
b51a:901b:cb15:8045:ada8:cd72:3fd1:a858	63.209.168.88
b51a:901b:cb15:8045:ada8:cd72:3fd1:a859	63.209.168.89
b51a:901b:cb15:8045:ada8:cd72:3fd1:a85a	63.209.168.90
b51a:901b:cb15:8045:ada8:cd72:3fd1:a85b	63.209.168.91
b51a:901b:cb15:8045:ada8:cd72:3fd1:a85c	63.209.168.92
b51a:901b:cb15:8045:ada8:cd72:3fd1:a85d	63.209.168.93
b51a:901b:cb15:8045:ada8:cd72:3fd1:a85e	63.209.168.94
b51a:901b:cb15:8045:ada8:cd72:3fd1:a85f	63.209.168.95
b51a:901b:cb15:8045:ada8:cd72:3fd1:a860	63.209.168.96
b51a:901b:cb15:8045:ada8:cd72:3fd1:a861	63.209.168.97
b51a:901b:cb15:8045:ada8:cd72:3fd1:a862	63.209.168.98
b51a:901b:cb15:8045:ada8:cd72:3fd1:a863	63.209.168.99
b51a:901b:cb15:8045:ada8:cd72:3fd1:a864	63.209.168.100
b51a:901b:cb15:8045:ada8:cd72:3fd1:a865	63.209.168.101
b51a:901b:cb15:8045:ada8:cd72:3fd1:a866	63.209.168.102
b51a:901b:cb15:8045:ada8:cd72:3fd1:a867	63.209.168.103
b51a:901b:cb15:8045:ada8:cd72:3fd1:a868	63.209.168.104
b51a:901b:cb15:8045:ada8:cd72:3fd1:a869	63.209.168.105
b51a:901b:cb15:8045:ada8:cd72:3fd1:a86a	63.209.168.106
b51a:901b:cb15:8045:ada8:cd72:3fd1:a86b	63.209.168.107
b51a:901b:cb15:8045:ada8:cd72:3fd1:a86c	63.209.168.108
b51a:901b:cb15:8045:ada8:cd72:3fd1:a86d	63.209.168.109
b51a:901b:cb15:8045:ada8:cd72:3fd1:a86e	63.209.168.110
b51a:901b:cb15:8045:ada8:cd72:3fd1:a86f	63.209.168.111
b51a:901b:cb15:8045:ada8:cd72:3fd1:a870	63.209.168.112
b51a:901b:cb15:8045:ada8:cd72:3fd1:a871	63.209.168.113
b51a:901b:cb15:8045:ada8:cd72:3fd1:a872	63.209.168.114
b51a:901b:cb15:8045:ada8:cd72:3fd1:a873	63.209.168.115
b51a:901b:cb15:8045:ada8:cd72:3fd1:a874	63.209.168.116
b51a:901b:cb15:8045:ada8:cd72:3fd1:a875	63.209.168.117
b51a:901b:cb15:8045:ada8:cd72:3fd1:a876	63.209.168.118
b51a:901b:cb15:8045:ada8:cd72:3fd1:a877	63.209.168.119
b51a:901b:cb15:8045:ada8:cd72:3fd1:a878	63.209.168.120

b51a:901b:cb15:8045:ada8:cd72:3fd1:a879	63.209.168.121
b51a:901b:cb15:8045:ada8:cd72:3fd1:a87a	63.209.168.122
b51a:901b:cb15:8045:ada8:cd72:3fd1:a87b	63.209.168.123
b51a:901b:cb15:8045:ada8:cd72:3fd1:a87c	63.209.168.124
b51a:901b:cb15:8045:ada8:cd72:3fd1:a87d	63.209.168.125
b51a:901b:cb15:8045:ada8:cd72:3fd1:a87e	63.209.168.126
b51a:901b:cb15:8045:ada8:cd72:3fd1:a87f	63.209.168.127
b51a:901b:cb15:8045:ada8:cd72:3fd1:a880	63.209.168.128
b51a:901b:cb15:8045:ada8:cd72:3fd1:a881	63.209.168.129
b51a:901b:cb15:8045:ada8:cd72:3fd1:a882	63.209.168.130
b51a:901b:cb15:8045:ada8:cd72:3fd1:a883	63.209.168.131
b51a:901b:cb15:8045:ada8:cd72:3fd1:a884	63.209.168.132
b51a:901b:cb15:8045:ada8:cd72:3fd1:a885	63.209.168.133
b51a:901b:cb15:8045:ada8:cd72:3fd1:a886	63.209.168.134
b51a:901b:cb15:8045:ada8:cd72:3fd1:a887	63.209.168.135
b51a:901b:cb15:8045:ada8:cd72:3fd1:a888	63.209.168.136
b51a:901b:cb15:8045:ada8:cd72:3fd1:a889	63.209.168.137
b51a:901b:cb15:8045:ada8:cd72:3fd1:a88a	63.209.168.138
b51a:901b:cb15:8045:ada8:cd72:3fd1:a88b	63.209.168.139
b51a:901b:cb15:8045:ada8:cd72:3fd1:a88c	63.209.168.140
b51a:901b:cb15:8045:ada8:cd72:3fd1:a88d	63.209.168.141
b51a:901b:cb15:8045:ada8:cd72:3fd1:a88e	63.209.168.142
b51a:901b:cb15:8045:ada8:cd72:3fd1:a88f	63.209.168.143
b51a:901b:cb15:8045:ada8:cd72:3fd1:a890	63.209.168.144
b51a:901b:cb15:8045:ada8:cd72:3fd1:a891	63.209.168.145
b51a:901b:cb15:8045:ada8:cd72:3fd1:a892	63.209.168.146
b51a:901b:cb15:8045:ada8:cd72:3fd1:a893	63.209.168.147
b51a:901b:cb15:8045:ada8:cd72:3fd1:a894	63.209.168.148
b51a:901b:cb15:8045:ada8:cd72:3fd1:a895	63.209.168.149
b51a:901b:cb15:8045:ada8:cd72:3fd1:a896	63.209.168.150
b51a:901b:cb15:8045:ada8:cd72:3fd1:a897	63.209.168.151
b51a:901b:cb15:8045:ada8:cd72:3fd1:a898	63.209.168.152
b51a:901b:cb15:8045:ada8:cd72:3fd1:a899	63.209.168.153
b51a:901b:cb15:8045:ada8:cd72:3fd1:a89a	63.209.168.154
b51a:901b:cb15:8045:ada8:cd72:3fd1:a89b	63.209.168.155
b51a:901b:cb15:8045:ada8:cd72:3fd1:a89c	63.209.168.156
b51a:901b:cb15:8045:ada8:cd72:3fd1:a89d	63.209.168.157
b51a:901b:cb15:8045:ada8:cd72:3fd1:a89e	63.209.168.158
b51a:901b:cb15:8045:ada8:cd72:3fd1:a89f	63.209.168.159
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8a0	63.209.168.160
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8a1	63.209.168.161
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8a2	63.209.168.162
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8a3	63.209.168.163
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8a4	63.209.168.164
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8a5	63.209.168.165
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8a6	63.209.168.166
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8a7	63.209.168.167
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8a8	63.209.168.168
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8a9	63.209.168.169
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8aa	63.209.168.170
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ab	63.209.168.171
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ac	63.209.168.172
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ad	63.209.168.173
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ae	63.209.168.174
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8af	63.209.168.175
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8b0	63.209.168.176
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8b1	63.209.168.177
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8b2	63.209.168.178
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8b3	63.209.168.179
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8b4	63.209.168.180

b51a:901b:cb15:8045:ada8:cd72:3fd1:a8b5	63.209.168.181
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8b6	63.209.168.182
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8b7	63.209.168.183
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8b8	63.209.168.184
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8b9	63.209.168.185
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ba	63.209.168.186
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8bb	63.209.168.187
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8bc	63.209.168.188
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8bd	63.209.168.189
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8be	63.209.168.190
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8bf	63.209.168.191
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8c0	63.209.168.192
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8c1	63.209.168.193
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8c2	63.209.168.194
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8c3	63.209.168.195
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8c4	63.209.168.196
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8c5	63.209.168.197
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8c6	63.209.168.198
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8c7	63.209.168.199
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8c8	63.209.168.200
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8c9	63.209.168.201
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ca	63.209.168.202
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8cb	63.209.168.203
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8cc	63.209.168.204
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8cd	63.209.168.205
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ce	63.209.168.206
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8cf	63.209.168.207
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8d0	63.209.168.208
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8d1	63.209.168.209
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8d2	63.209.168.210
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8d3	63.209.168.211
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8d4	63.209.168.212
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8d5	63.209.168.213
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8d6	63.209.168.214
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8d7	63.209.168.215
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8d8	63.209.168.216
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8d9	63.209.168.217
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8da	63.209.168.218
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8db	63.209.168.219
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8dc	63.209.168.220
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8dd	63.209.168.221
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8de	63.209.168.222
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8df	63.209.168.223
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8e0	63.209.168.224
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8e1	63.209.168.225
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8e2	63.209.168.226
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8e3	63.209.168.227
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8e4	63.209.168.228
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8e5	63.209.168.229
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8e6	63.209.168.230
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8e7	63.209.168.231
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8e8	63.209.168.232
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8e9	63.209.168.233
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ea	63.209.168.234
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8eb	63.209.168.235
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ec	63.209.168.236
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ed	63.209.168.237
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ee	63.209.168.238
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ef	63.209.168.239
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8f0	63.209.168.240
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8f1	63.209.168.241
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8f2	63.209.168.242
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8f3	63.209.168.243
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8f4	63.209.168.244
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8f5	63.209.168.245
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8f6	63.209.168.246
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8f7	63.209.168.247
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8f8	63.209.168.248
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8f9	63.209.168.249
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8fa	63.209.168.250
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8fb	63.209.168.251
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8fc	63.209.168.252
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8fd	63.209.168.253
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8fe	63.209.168.254
b51a:901b:cb15:8045:ada8:cd72:3fd1:a8ff	63.209.168.255

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.