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:80fd:f101	128.253.241.1
b51a:901b:cb15:8045:ada8:cdcd:80fd:f102	128.253.241.2
b51a:901b:cb15:8045:ada8:cdcd:80fd:f103	128.253.241.3
b51a:901b:cb15:8045:ada8:cdcd:80fd:f104	128.253.241.4
b51a:901b:cb15:8045:ada8:cdcd:80fd:f105	128.253.241.5
b51a:901b:cb15:8045:ada8:cdcd:80fd:f106	128.253.241.6
b51a:901b:cb15:8045:ada8:cdcd:80fd:f107	128.253.241.7
b51a:901b:cb15:8045:ada8:cdcd:80fd:f108	128.253.241.8
b51a:901b:cb15:8045:ada8:cdcd:80fd:f109	128.253.241.9
b51a:901b:cb15:8045:ada8:cdcd:80fd:f10a	128.253.241.10
b51a:901b:cb15:8045:ada8:cdcd:80fd:f10b	128.253.241.11
b51a:901b:cb15:8045:ada8:cdcd:80fd:f10c	128.253.241.12
b51a:901b:cb15:8045:ada8:cdcd:80fd:f10d	128.253.241.13
b51a:901b:cb15:8045:ada8:cdcd:80fd:f10e	128.253.241.14
b51a:901b:cb15:8045:ada8:cdcd:80fd:f10f	128.253.241.15
b51a:901b:cb15:8045:ada8:cdcd:80fd:f110	128.253.241.16
b51a:901b:cb15:8045:ada8:cdcd:80fd:f111	128.253.241.17
b51a:901b:cb15:8045:ada8:cdcd:80fd:f112	128.253.241.18
b51a:901b:cb15:8045:ada8:cdcd:80fd:f113	128.253.241.19
b51a:901b:cb15:8045:ada8:cdcd:80fd:f114	128.253.241.20
b51a:901b:cb15:8045:ada8:cdcd:80fd:f115	128.253.241.21
b51a:901b:cb15:8045:ada8:cdcd:80fd:f116	128.253.241.22
b51a:901b:cb15:8045:ada8:cdcd:80fd:f117	128.253.241.23
b51a:901b:cb15:8045:ada8:cdcd:80fd:f118	128.253.241.24
b51a:901b:cb15:8045:ada8:cdcd:80fd:f119	128.253.241.25
b51a:901b:cb15:8045:ada8:cdcd:80fd:f11a	128.253.241.26
b51a:901b:cb15:8045:ada8:cdcd:80fd:f11b	128.253.241.27
b51a:901b:cb15:8045:ada8:cdcd:80fd:f11c	128.253.241.28
b51a:901b:cb15:8045:ada8:cdcd:80fd:f11d	128.253.241.29
b51a:901b:cb15:8045:ada8:cdcd:80fd:f11e	128.253.241.30
b51a:901b:cb15:8045:ada8:cdcd:80fd:f11f	128.253.241.31
b51a:901b:cb15:8045:ada8:cdcd:80fd:f120	128.253.241.32
b51a:901b:cb15:8045:ada8:cdcd:80fd:f121	128.253.241.33
b51a:901b:cb15:8045:ada8:cdcd:80fd:f122	128.253.241.34
b51a:901b:cb15:8045:ada8:cdcd:80fd:f123	128.253.241.35
b51a:901b:cb15:8045:ada8:cdcd:80fd:f124	128.253.241.36
b51a:901b:cb15:8045:ada8:cdcd:80fd:f125	128.253.241.37
b51a:901b:cb15:8045:ada8:cdcd:80fd:f126	128.253.241.38
b51a:901b:cb15:8045:ada8:cdcd:80fd:f127	128.253.241.39
b51a:901b:cb15:8045:ada8:cdcd:80fd:f128	128.253.241.40
b51a:901b:cb15:8045:ada8:cdcd:80fd:f129	128.253.241.41
b51a:901b:cb15:8045:ada8:cdcd:80fd:f12a	128.253.241.42
b51a:901b:cb15:8045:ada8:cdcd:80fd:f12b	128.253.241.43
b51a:901b:cb15:8045:ada8:cdcd:80fd:f12c	128.253.241.44
b51a:901b:cb15:8045:ada8:cdcd:80fd:f12d	128.253.241.45
b51a:901b:cb15:8045:ada8:cdcd:80fd:f12e	128.253.241.46
b51a:901b:cb15:8045:ada8:cdcd:80fd:f12f	128.253.241.47
b51a:901b:cb15:8045:ada8:cdcd:80fd:f130	128.253.241.48
b51a:901b:cb15:8045:ada8:cdcd:80fd:f131	128.253.241.49
b51a:901b:cb15:8045:ada8:cdcd:80fd:f132	128.253.241.50
b51a:901b:cb15:8045:ada8:cdcd:80fd:f133	128.253.241.51
b51a:901b:cb15:8045:ada8:cdcd:80fd:f134	128.253.241.52
b51a:901b:cb15:8045:ada8:cdcd:80fd:f135	128.253.241.53
b51a:901b:cb15:8045:ada8:cdcd:80fd:f136	128.253.241.54
b51a:901b:cb15:8045:ada8:cdcd:80fd:f137	128.253.241.55
b51a:901b:cb15:8045:ada8:cdcd:80fd:f138	128.253.241.56
b51a:901b:cb15:8045:ada8:cdcd:80fd:f139	128.253.241.57
b51a:901b:cb15:8045:ada8:cdcd:80fd:f13a	128.253.241.58
b51a:901b:cb15:8045:ada8:cdcd:80fd:f13b	128.253.241.59
b51a:901b:cb15:8045:ada8:cdcd:80fd:f13c	128.253.241.60

b51a:901b:cb15:8045:ada8:cdcd:80fd:f13d	128.253.241.61
b51a:901b:cb15:8045:ada8:cdcd:80fd:f13e	128.253.241.62
b51a:901b:cb15:8045:ada8:cdcd:80fd:f13f	128.253.241.63
b51a:901b:cb15:8045:ada8:cdcd:80fd:f140	128.253.241.64
b51a:901b:cb15:8045:ada8:cdcd:80fd:f141	128.253.241.65
b51a:901b:cb15:8045:ada8:cdcd:80fd:f142	128.253.241.66
b51a:901b:cb15:8045:ada8:cdcd:80fd:f143	128.253.241.67
b51a:901b:cb15:8045:ada8:cdcd:80fd:f144	128.253.241.68
b51a:901b:cb15:8045:ada8:cdcd:80fd:f145	128.253.241.69
b51a:901b:cb15:8045:ada8:cdcd:80fd:f146	128.253.241.70
b51a:901b:cb15:8045:ada8:cdcd:80fd:f147	128.253.241.71
b51a:901b:cb15:8045:ada8:cdcd:80fd:f148	128.253.241.72
b51a:901b:cb15:8045:ada8:cdcd:80fd:f149	128.253.241.73
b51a:901b:cb15:8045:ada8:cdcd:80fd:f14a	128.253.241.74
b51a:901b:cb15:8045:ada8:cdcd:80fd:f14b	128.253.241.75
b51a:901b:cb15:8045:ada8:cdcd:80fd:f14c	128.253.241.76
b51a:901b:cb15:8045:ada8:cdcd:80fd:f14d	128.253.241.77
b51a:901b:cb15:8045:ada8:cdcd:80fd:f14e	128.253.241.78
b51a:901b:cb15:8045:ada8:cdcd:80fd:f14f	128.253.241.79
b51a:901b:cb15:8045:ada8:cdcd:80fd:f150	128.253.241.80
b51a:901b:cb15:8045:ada8:cdcd:80fd:f151	128.253.241.81
b51a:901b:cb15:8045:ada8:cdcd:80fd:f152	128.253.241.82
b51a:901b:cb15:8045:ada8:cdcd:80fd:f153	128.253.241.83
b51a:901b:cb15:8045:ada8:cdcd:80fd:f154	128.253.241.84
b51a:901b:cb15:8045:ada8:cdcd:80fd:f155	128.253.241.85
b51a:901b:cb15:8045:ada8:cdcd:80fd:f156	128.253.241.86
b51a:901b:cb15:8045:ada8:cdcd:80fd:f157	128.253.241.87
b51a:901b:cb15:8045:ada8:cdcd:80fd:f158	128.253.241.88
b51a:901b:cb15:8045:ada8:cdcd:80fd:f159	128.253.241.89
b51a:901b:cb15:8045:ada8:cdcd:80fd:f15a	128.253.241.90
b51a:901b:cb15:8045:ada8:cdcd:80fd:f15b	128.253.241.91
b51a:901b:cb15:8045:ada8:cdcd:80fd:f15c	128.253.241.92
b51a:901b:cb15:8045:ada8:cdcd:80fd:f15d	128.253.241.93
b51a:901b:cb15:8045:ada8:cdcd:80fd:f15e	128.253.241.94
b51a:901b:cb15:8045:ada8:cdcd:80fd:f15f	128.253.241.95
b51a:901b:cb15:8045:ada8:cdcd:80fd:f160	128.253.241.96
b51a:901b:cb15:8045:ada8:cdcd:80fd:f161	128.253.241.97
b51a:901b:cb15:8045:ada8:cdcd:80fd:f162	128.253.241.98
b51a:901b:cb15:8045:ada8:cdcd:80fd:f163	128.253.241.99
b51a:901b:cb15:8045:ada8:cdcd:80fd:f164	128.253.241.100
b51a:901b:cb15:8045:ada8:cdcd:80fd:f165	128.253.241.101
b51a:901b:cb15:8045:ada8:cdcd:80fd:f166	128.253.241.102
b51a:901b:cb15:8045:ada8:cdcd:80fd:f167	128.253.241.103
b51a:901b:cb15:8045:ada8:cdcd:80fd:f168	128.253.241.104
b51a:901b:cb15:8045:ada8:cdcd:80fd:f169	128.253.241.105
b51a:901b:cb15:8045:ada8:cdcd:80fd:f16a	128.253.241.106
b51a:901b:cb15:8045:ada8:cdcd:80fd:f16b	128.253.241.107
b51a:901b:cb15:8045:ada8:cdcd:80fd:f16c	128.253.241.108
b51a:901b:cb15:8045:ada8:cdcd:80fd:f16d	128.253.241.109
b51a:901b:cb15:8045:ada8:cdcd:80fd:f16e	128.253.241.110
b51a:901b:cb15:8045:ada8:cdcd:80fd:f16f	128.253.241.111
b51a:901b:cb15:8045:ada8:cdcd:80fd:f170	128.253.241.112
b51a:901b:cb15:8045:ada8:cdcd:80fd:f171	128.253.241.113
b51a:901b:cb15:8045:ada8:cdcd:80fd:f172	128.253.241.114
b51a:901b:cb15:8045:ada8:cdcd:80fd:f173	128.253.241.115
b51a:901b:cb15:8045:ada8:cdcd:80fd:f174	128.253.241.116
b51a:901b:cb15:8045:ada8:cdcd:80fd:f175	128.253.241.117
b51a:901b:cb15:8045:ada8:cdcd:80fd:f176	128.253.241.118
b51a:901b:cb15:8045:ada8:cdcd:80fd:f177	128.253.241.119
b51a:901b:cb15:8045:ada8:cdcd:80fd:f178	128.253.241.120

b51a:901b:cb15:8045:ada8:cdcd:80fd:f179	128.253.241.121
b51a:901b:cb15:8045:ada8:cdcd:80fd:f17a	128.253.241.122
b51a:901b:cb15:8045:ada8:cdcd:80fd:f17b	128.253.241.123
b51a:901b:cb15:8045:ada8:cdcd:80fd:f17c	128.253.241.124
b51a:901b:cb15:8045:ada8:cdcd:80fd:f17d	128.253.241.125
b51a:901b:cb15:8045:ada8:cdcd:80fd:f17e	128.253.241.126
b51a:901b:cb15:8045:ada8:cdcd:80fd:f17f	128.253.241.127
b51a:901b:cb15:8045:ada8:cdcd:80fd:f180	128.253.241.128
b51a:901b:cb15:8045:ada8:cdcd:80fd:f181	128.253.241.129
b51a:901b:cb15:8045:ada8:cdcd:80fd:f182	128.253.241.130
b51a:901b:cb15:8045:ada8:cdcd:80fd:f183	128.253.241.131
b51a:901b:cb15:8045:ada8:cdcd:80fd:f184	128.253.241.132
b51a:901b:cb15:8045:ada8:cdcd:80fd:f185	128.253.241.133
b51a:901b:cb15:8045:ada8:cdcd:80fd:f186	128.253.241.134
b51a:901b:cb15:8045:ada8:cdcd:80fd:f187	128.253.241.135
b51a:901b:cb15:8045:ada8:cdcd:80fd:f188	128.253.241.136
b51a:901b:cb15:8045:ada8:cdcd:80fd:f189	128.253.241.137
b51a:901b:cb15:8045:ada8:cdcd:80fd:f18a	128.253.241.138
b51a:901b:cb15:8045:ada8:cdcd:80fd:f18b	128.253.241.139
b51a:901b:cb15:8045:ada8:cdcd:80fd:f18c	128.253.241.140
b51a:901b:cb15:8045:ada8:cdcd:80fd:f18d	128.253.241.141
b51a:901b:cb15:8045:ada8:cdcd:80fd:f18e	128.253.241.142
b51a:901b:cb15:8045:ada8:cdcd:80fd:f18f	128.253.241.143
b51a:901b:cb15:8045:ada8:cdcd:80fd:f190	128.253.241.144
b51a:901b:cb15:8045:ada8:cdcd:80fd:f191	128.253.241.145
b51a:901b:cb15:8045:ada8:cdcd:80fd:f192	128.253.241.146
b51a:901b:cb15:8045:ada8:cdcd:80fd:f193	128.253.241.147
b51a:901b:cb15:8045:ada8:cdcd:80fd:f194	128.253.241.148
b51a:901b:cb15:8045:ada8:cdcd:80fd:f195	128.253.241.149
b51a:901b:cb15:8045:ada8:cdcd:80fd:f196	128.253.241.150
b51a:901b:cb15:8045:ada8:cdcd:80fd:f197	128.253.241.151
b51a:901b:cb15:8045:ada8:cdcd:80fd:f198	128.253.241.152
b51a:901b:cb15:8045:ada8:cdcd:80fd:f199	128.253.241.153
b51a:901b:cb15:8045:ada8:cdcd:80fd:f19a	128.253.241.154
b51a:901b:cb15:8045:ada8:cdcd:80fd:f19b	128.253.241.155
b51a:901b:cb15:8045:ada8:cdcd:80fd:f19c	128.253.241.156
b51a:901b:cb15:8045:ada8:cdcd:80fd:f19d	128.253.241.157
b51a:901b:cb15:8045:ada8:cdcd:80fd:f19e	128.253.241.158
b51a:901b:cb15:8045:ada8:cdcd:80fd:f19f	128.253.241.159
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1a0	128.253.241.160
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1a1	128.253.241.161
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1a2	128.253.241.162
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1a3	128.253.241.163
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1a4	128.253.241.164
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1a5	128.253.241.165
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1a6	128.253.241.166
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1a7	128.253.241.167
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1a8	128.253.241.168
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1a9	128.253.241.169
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1aa	128.253.241.170
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ab	128.253.241.171
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ac	128.253.241.172
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ad	128.253.241.173
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ae	128.253.241.174
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1af	128.253.241.175
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1b0	128.253.241.176
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1b1	128.253.241.177
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1b2	128.253.241.178
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1b3	128.253.241.179
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1b4	128.253.241.180

b51a:901b:cb15:8045:ada8:cdcd:80fd:f1b5	128.253.241.181
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1b6	128.253.241.182
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1b7	128.253.241.183
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1b8	128.253.241.184
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1b9	128.253.241.185
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ba	128.253.241.186
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1bb	128.253.241.187
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1bc	128.253.241.188
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1bd	128.253.241.189
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1be	128.253.241.190
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1bf	128.253.241.191
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1c0	128.253.241.192
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1c1	128.253.241.193
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1c2	128.253.241.194
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1c3	128.253.241.195
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1c4	128.253.241.196
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1c5	128.253.241.197
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1c6	128.253.241.198
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1c7	128.253.241.199
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1c8	128.253.241.200
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1c9	128.253.241.201
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ca	128.253.241.202
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1cb	128.253.241.203
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1cc	128.253.241.204
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1cd	128.253.241.205
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ce	128.253.241.206
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1cf	128.253.241.207
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1d0	128.253.241.208
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1d1	128.253.241.209
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1d2	128.253.241.210
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1d3	128.253.241.211
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1d4	128.253.241.212
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1d5	128.253.241.213
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1d6	128.253.241.214
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1d7	128.253.241.215
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1d8	128.253.241.216
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1d9	128.253.241.217
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1da	128.253.241.218
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1db	128.253.241.219
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1dc	128.253.241.220
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1dd	128.253.241.221
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1de	128.253.241.222
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1df	128.253.241.223
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1e0	128.253.241.224
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1e1	128.253.241.225
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1e2	128.253.241.226
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1e3	128.253.241.227
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1e4	128.253.241.228
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1e5	128.253.241.229
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1e6	128.253.241.230
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1e7	128.253.241.231
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1e8	128.253.241.232
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1e9	128.253.241.233
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ea	128.253.241.234
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1eb	128.253.241.235
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ec	128.253.241.236
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ed	128.253.241.237
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ee	128.253.241.238
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ef	128.253.241.239
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1f0	128.253.241.240
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1f1	128.253.241.241
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1f2	128.253.241.242
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1f3	128.253.241.243
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1f4	128.253.241.244
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1f5	128.253.241.245
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1f6	128.253.241.246
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1f7	128.253.241.247
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1f8	128.253.241.248
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1f9	128.253.241.249
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1fa	128.253.241.250
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1fb	128.253.241.251
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1fc	128.253.241.252
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1fd	128.253.241.253
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1fe	128.253.241.254
b51a:901b:cb15:8045:ada8:cdcd:80fd:f1ff	128.253.241.255

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.