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:b201	128.253.178.1
b51a:901b:cb15:8045:ada8:cdcd:80fd:b202	128.253.178.2
b51a:901b:cb15:8045:ada8:cdcd:80fd:b203	128.253.178.3
b51a:901b:cb15:8045:ada8:cdcd:80fd:b204	128.253.178.4
b51a:901b:cb15:8045:ada8:cdcd:80fd:b205	128.253.178.5
b51a:901b:cb15:8045:ada8:cdcd:80fd:b206	128.253.178.6
b51a:901b:cb15:8045:ada8:cdcd:80fd:b207	128.253.178.7
b51a:901b:cb15:8045:ada8:cdcd:80fd:b208	128.253.178.8
b51a:901b:cb15:8045:ada8:cdcd:80fd:b209	128.253.178.9
b51a:901b:cb15:8045:ada8:cdcd:80fd:b20a	128.253.178.10
b51a:901b:cb15:8045:ada8:cdcd:80fd:b20b	128.253.178.11
b51a:901b:cb15:8045:ada8:cdcd:80fd:b20c	128.253.178.12
b51a:901b:cb15:8045:ada8:cdcd:80fd:b20d	128.253.178.13
b51a:901b:cb15:8045:ada8:cdcd:80fd:b20e	128.253.178.14
b51a:901b:cb15:8045:ada8:cdcd:80fd:b20f	128.253.178.15
b51a:901b:cb15:8045:ada8:cdcd:80fd:b210	128.253.178.16
b51a:901b:cb15:8045:ada8:cdcd:80fd:b211	128.253.178.17
b51a:901b:cb15:8045:ada8:cdcd:80fd:b212	128.253.178.18
b51a:901b:cb15:8045:ada8:cdcd:80fd:b213	128.253.178.19
b51a:901b:cb15:8045:ada8:cdcd:80fd:b214	128.253.178.20
b51a:901b:cb15:8045:ada8:cdcd:80fd:b215	128.253.178.21
b51a:901b:cb15:8045:ada8:cdcd:80fd:b216	128.253.178.22
b51a:901b:cb15:8045:ada8:cdcd:80fd:b217	128.253.178.23
b51a:901b:cb15:8045:ada8:cdcd:80fd:b218	128.253.178.24
b51a:901b:cb15:8045:ada8:cdcd:80fd:b219	128.253.178.25
b51a:901b:cb15:8045:ada8:cdcd:80fd:b21a	128.253.178.26
b51a:901b:cb15:8045:ada8:cdcd:80fd:b21b	128.253.178.27
b51a:901b:cb15:8045:ada8:cdcd:80fd:b21c	128.253.178.28
b51a:901b:cb15:8045:ada8:cdcd:80fd:b21d	128.253.178.29
b51a:901b:cb15:8045:ada8:cdcd:80fd:b21e	128.253.178.30
b51a:901b:cb15:8045:ada8:cdcd:80fd:b21f	128.253.178.31
b51a:901b:cb15:8045:ada8:cdcd:80fd:b220	128.253.178.32
b51a:901b:cb15:8045:ada8:cdcd:80fd:b221	128.253.178.33
b51a:901b:cb15:8045:ada8:cdcd:80fd:b222	128.253.178.34
b51a:901b:cb15:8045:ada8:cdcd:80fd:b223	128.253.178.35
b51a:901b:cb15:8045:ada8:cdcd:80fd:b224	128.253.178.36
b51a:901b:cb15:8045:ada8:cdcd:80fd:b225	128.253.178.37
b51a:901b:cb15:8045:ada8:cdcd:80fd:b226	128.253.178.38
b51a:901b:cb15:8045:ada8:cdcd:80fd:b227	128.253.178.39
b51a:901b:cb15:8045:ada8:cdcd:80fd:b228	128.253.178.40
b51a:901b:cb15:8045:ada8:cdcd:80fd:b229	128.253.178.41
b51a:901b:cb15:8045:ada8:cdcd:80fd:b22a	128.253.178.42
b51a:901b:cb15:8045:ada8:cdcd:80fd:b22b	128.253.178.43
b51a:901b:cb15:8045:ada8:cdcd:80fd:b22c	128.253.178.44
b51a:901b:cb15:8045:ada8:cdcd:80fd:b22d	128.253.178.45
b51a:901b:cb15:8045:ada8:cdcd:80fd:b22e	128.253.178.46
b51a:901b:cb15:8045:ada8:cdcd:80fd:b22f	128.253.178.47
b51a:901b:cb15:8045:ada8:cdcd:80fd:b230	128.253.178.48
b51a:901b:cb15:8045:ada8:cdcd:80fd:b231	128.253.178.49
b51a:901b:cb15:8045:ada8:cdcd:80fd:b232	128.253.178.50
b51a:901b:cb15:8045:ada8:cdcd:80fd:b233	128.253.178.51
b51a:901b:cb15:8045:ada8:cdcd:80fd:b234	128.253.178.52
b51a:901b:cb15:8045:ada8:cdcd:80fd:b235	128.253.178.53
b51a:901b:cb15:8045:ada8:cdcd:80fd:b236	128.253.178.54
b51a:901b:cb15:8045:ada8:cdcd:80fd:b237	128.253.178.55
b51a:901b:cb15:8045:ada8:cdcd:80fd:b238	128.253.178.56
b51a:901b:cb15:8045:ada8:cdcd:80fd:b239	128.253.178.57
b51a:901b:cb15:8045:ada8:cdcd:80fd:b23a	128.253.178.58
b51a:901b:cb15:8045:ada8:cdcd:80fd:b23b	128.253.178.59
b51a:901b:cb15:8045:ada8:cdcd:80fd:b23c	128.253.178.60

b51a:901b:cb15:8045:ada8:cdcd:80fd:b23d	128.253.178.61
b51a:901b:cb15:8045:ada8:cdcd:80fd:b23e	128.253.178.62
b51a:901b:cb15:8045:ada8:cdcd:80fd:b23f	128.253.178.63
b51a:901b:cb15:8045:ada8:cdcd:80fd:b240	128.253.178.64
b51a:901b:cb15:8045:ada8:cdcd:80fd:b241	128.253.178.65
b51a:901b:cb15:8045:ada8:cdcd:80fd:b242	128.253.178.66
b51a:901b:cb15:8045:ada8:cdcd:80fd:b243	128.253.178.67
b51a:901b:cb15:8045:ada8:cdcd:80fd:b244	128.253.178.68
b51a:901b:cb15:8045:ada8:cdcd:80fd:b245	128.253.178.69
b51a:901b:cb15:8045:ada8:cdcd:80fd:b246	128.253.178.70
b51a:901b:cb15:8045:ada8:cdcd:80fd:b247	128.253.178.71
b51a:901b:cb15:8045:ada8:cdcd:80fd:b248	128.253.178.72
b51a:901b:cb15:8045:ada8:cdcd:80fd:b249	128.253.178.73
b51a:901b:cb15:8045:ada8:cdcd:80fd:b24a	128.253.178.74
b51a:901b:cb15:8045:ada8:cdcd:80fd:b24b	128.253.178.75
b51a:901b:cb15:8045:ada8:cdcd:80fd:b24c	128.253.178.76
b51a:901b:cb15:8045:ada8:cdcd:80fd:b24d	128.253.178.77
b51a:901b:cb15:8045:ada8:cdcd:80fd:b24e	128.253.178.78
b51a:901b:cb15:8045:ada8:cdcd:80fd:b24f	128.253.178.79
b51a:901b:cb15:8045:ada8:cdcd:80fd:b250	128.253.178.80
b51a:901b:cb15:8045:ada8:cdcd:80fd:b251	128.253.178.81
b51a:901b:cb15:8045:ada8:cdcd:80fd:b252	128.253.178.82
b51a:901b:cb15:8045:ada8:cdcd:80fd:b253	128.253.178.83
b51a:901b:cb15:8045:ada8:cdcd:80fd:b254	128.253.178.84
b51a:901b:cb15:8045:ada8:cdcd:80fd:b255	128.253.178.85
b51a:901b:cb15:8045:ada8:cdcd:80fd:b256	128.253.178.86
b51a:901b:cb15:8045:ada8:cdcd:80fd:b257	128.253.178.87
b51a:901b:cb15:8045:ada8:cdcd:80fd:b258	128.253.178.88
b51a:901b:cb15:8045:ada8:cdcd:80fd:b259	128.253.178.89
b51a:901b:cb15:8045:ada8:cdcd:80fd:b25a	128.253.178.90
b51a:901b:cb15:8045:ada8:cdcd:80fd:b25b	128.253.178.91
b51a:901b:cb15:8045:ada8:cdcd:80fd:b25c	128.253.178.92
b51a:901b:cb15:8045:ada8:cdcd:80fd:b25d	128.253.178.93
b51a:901b:cb15:8045:ada8:cdcd:80fd:b25e	128.253.178.94
b51a:901b:cb15:8045:ada8:cdcd:80fd:b25f	128.253.178.95
b51a:901b:cb15:8045:ada8:cdcd:80fd:b260	128.253.178.96
b51a:901b:cb15:8045:ada8:cdcd:80fd:b261	128.253.178.97
b51a:901b:cb15:8045:ada8:cdcd:80fd:b262	128.253.178.98
b51a:901b:cb15:8045:ada8:cdcd:80fd:b263	128.253.178.99
b51a:901b:cb15:8045:ada8:cdcd:80fd:b264	128.253.178.100
b51a:901b:cb15:8045:ada8:cdcd:80fd:b265	128.253.178.101
b51a:901b:cb15:8045:ada8:cdcd:80fd:b266	128.253.178.102
b51a:901b:cb15:8045:ada8:cdcd:80fd:b267	128.253.178.103
b51a:901b:cb15:8045:ada8:cdcd:80fd:b268	128.253.178.104
b51a:901b:cb15:8045:ada8:cdcd:80fd:b269	128.253.178.105
b51a:901b:cb15:8045:ada8:cdcd:80fd:b26a	128.253.178.106
b51a:901b:cb15:8045:ada8:cdcd:80fd:b26b	128.253.178.107
b51a:901b:cb15:8045:ada8:cdcd:80fd:b26c	128.253.178.108
b51a:901b:cb15:8045:ada8:cdcd:80fd:b26d	128.253.178.109
b51a:901b:cb15:8045:ada8:cdcd:80fd:b26e	128.253.178.110
b51a:901b:cb15:8045:ada8:cdcd:80fd:b26f	128.253.178.111
b51a:901b:cb15:8045:ada8:cdcd:80fd:b270	128.253.178.112
b51a:901b:cb15:8045:ada8:cdcd:80fd:b271	128.253.178.113
b51a:901b:cb15:8045:ada8:cdcd:80fd:b272	128.253.178.114
b51a:901b:cb15:8045:ada8:cdcd:80fd:b273	128.253.178.115
b51a:901b:cb15:8045:ada8:cdcd:80fd:b274	128.253.178.116
b51a:901b:cb15:8045:ada8:cdcd:80fd:b275	128.253.178.117
b51a:901b:cb15:8045:ada8:cdcd:80fd:b276	128.253.178.118
b51a:901b:cb15:8045:ada8:cdcd:80fd:b277	128.253.178.119
b51a:901b:cb15:8045:ada8:cdcd:80fd:b278	128.253.178.120

b51a:901b:cb15:8045:ada8:cdcd:80fd:b279	128.253.178.121
b51a:901b:cb15:8045:ada8:cdcd:80fd:b27a	128.253.178.122
b51a:901b:cb15:8045:ada8:cdcd:80fd:b27b	128.253.178.123
b51a:901b:cb15:8045:ada8:cdcd:80fd:b27c	128.253.178.124
b51a:901b:cb15:8045:ada8:cdcd:80fd:b27d	128.253.178.125
b51a:901b:cb15:8045:ada8:cdcd:80fd:b27e	128.253.178.126
b51a:901b:cb15:8045:ada8:cdcd:80fd:b27f	128.253.178.127
b51a:901b:cb15:8045:ada8:cdcd:80fd:b280	128.253.178.128
b51a:901b:cb15:8045:ada8:cdcd:80fd:b281	128.253.178.129
b51a:901b:cb15:8045:ada8:cdcd:80fd:b282	128.253.178.130
b51a:901b:cb15:8045:ada8:cdcd:80fd:b283	128.253.178.131
b51a:901b:cb15:8045:ada8:cdcd:80fd:b284	128.253.178.132
b51a:901b:cb15:8045:ada8:cdcd:80fd:b285	128.253.178.133
b51a:901b:cb15:8045:ada8:cdcd:80fd:b286	128.253.178.134
b51a:901b:cb15:8045:ada8:cdcd:80fd:b287	128.253.178.135
b51a:901b:cb15:8045:ada8:cdcd:80fd:b288	128.253.178.136
b51a:901b:cb15:8045:ada8:cdcd:80fd:b289	128.253.178.137
b51a:901b:cb15:8045:ada8:cdcd:80fd:b28a	128.253.178.138
b51a:901b:cb15:8045:ada8:cdcd:80fd:b28b	128.253.178.139
b51a:901b:cb15:8045:ada8:cdcd:80fd:b28c	128.253.178.140
b51a:901b:cb15:8045:ada8:cdcd:80fd:b28d	128.253.178.141
b51a:901b:cb15:8045:ada8:cdcd:80fd:b28e	128.253.178.142
b51a:901b:cb15:8045:ada8:cdcd:80fd:b28f	128.253.178.143
b51a:901b:cb15:8045:ada8:cdcd:80fd:b290	128.253.178.144
b51a:901b:cb15:8045:ada8:cdcd:80fd:b291	128.253.178.145
b51a:901b:cb15:8045:ada8:cdcd:80fd:b292	128.253.178.146
b51a:901b:cb15:8045:ada8:cdcd:80fd:b293	128.253.178.147
b51a:901b:cb15:8045:ada8:cdcd:80fd:b294	128.253.178.148
b51a:901b:cb15:8045:ada8:cdcd:80fd:b295	128.253.178.149
b51a:901b:cb15:8045:ada8:cdcd:80fd:b296	128.253.178.150
b51a:901b:cb15:8045:ada8:cdcd:80fd:b297	128.253.178.151
b51a:901b:cb15:8045:ada8:cdcd:80fd:b298	128.253.178.152
b51a:901b:cb15:8045:ada8:cdcd:80fd:b299	128.253.178.153
b51a:901b:cb15:8045:ada8:cdcd:80fd:b29a	128.253.178.154
b51a:901b:cb15:8045:ada8:cdcd:80fd:b29b	128.253.178.155
b51a:901b:cb15:8045:ada8:cdcd:80fd:b29c	128.253.178.156
b51a:901b:cb15:8045:ada8:cdcd:80fd:b29d	128.253.178.157
b51a:901b:cb15:8045:ada8:cdcd:80fd:b29e	128.253.178.158
b51a:901b:cb15:8045:ada8:cdcd:80fd:b29f	128.253.178.159
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2a0	128.253.178.160
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2a1	128.253.178.161
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2a2	128.253.178.162
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2a3	128.253.178.163
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2a4	128.253.178.164
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2a5	128.253.178.165
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2a6	128.253.178.166
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2a7	128.253.178.167
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2a8	128.253.178.168
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2a9	128.253.178.169
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2aa	128.253.178.170
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ab	128.253.178.171
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ac	128.253.178.172
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ad	128.253.178.173
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ae	128.253.178.174
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2af	128.253.178.175
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2b0	128.253.178.176
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2b1	128.253.178.177
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2b2	128.253.178.178
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2b3	128.253.178.179
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2b4	128.253.178.180

b51a:901b:cb15:8045:ada8:cdcd:80fd:b2b5	128.253.178.181
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2b6	128.253.178.182
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2b7	128.253.178.183
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2b8	128.253.178.184
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2b9	128.253.178.185
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ba	128.253.178.186
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2bb	128.253.178.187
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2bc	128.253.178.188
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2bd	128.253.178.189
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2be	128.253.178.190
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2bf	128.253.178.191
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2c0	128.253.178.192
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2c1	128.253.178.193
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2c2	128.253.178.194
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2c3	128.253.178.195
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2c4	128.253.178.196
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2c5	128.253.178.197
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2c6	128.253.178.198
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2c7	128.253.178.199
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2c8	128.253.178.200
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2c9	128.253.178.201
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ca	128.253.178.202
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2cb	128.253.178.203
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2cc	128.253.178.204
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2cd	128.253.178.205
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ce	128.253.178.206
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2cf	128.253.178.207
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2d0	128.253.178.208
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2d1	128.253.178.209
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2d2	128.253.178.210
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2d3	128.253.178.211
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2d4	128.253.178.212
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2d5	128.253.178.213
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2d6	128.253.178.214
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2d7	128.253.178.215
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2d8	128.253.178.216
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2d9	128.253.178.217
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2da	128.253.178.218
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2db	128.253.178.219
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2dc	128.253.178.220
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2dd	128.253.178.221
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2de	128.253.178.222
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2df	128.253.178.223
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2e0	128.253.178.224
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2e1	128.253.178.225
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2e2	128.253.178.226
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2e3	128.253.178.227
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2e4	128.253.178.228
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2e5	128.253.178.229
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2e6	128.253.178.230
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2e7	128.253.178.231
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2e8	128.253.178.232
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2e9	128.253.178.233
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ea	128.253.178.234
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2eb	128.253.178.235
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ec	128.253.178.236
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ed	128.253.178.237
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ee	128.253.178.238
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ef	128.253.178.239
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2f0	128.253.178.240
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2f1	128.253.178.241
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2f2	128.253.178.242
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2f3	128.253.178.243
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2f4	128.253.178.244
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2f5	128.253.178.245
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2f6	128.253.178.246
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2f7	128.253.178.247
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2f8	128.253.178.248
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2f9	128.253.178.249
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2fa	128.253.178.250
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2fb	128.253.178.251
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2fc	128.253.178.252
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2fd	128.253.178.253
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2fe	128.253.178.254
b51a:901b:cb15:8045:ada8:cdcd:80fd:b2ff	128.253.178.255

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.