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
cb15:901b:901b:1324:ada3:db24:b51f:5101	181.31.81.1
cb15:901b:901b:1324:ada3:db24:b51f:5102	181.31.81.2
cb15:901b:901b:1324:ada3:db24:b51f:5103	181.31.81.3
cb15:901b:901b:1324:ada3:db24:b51f:5104	181.31.81.4
cb15:901b:901b:1324:ada3:db24:b51f:5105	181.31.81.5
cb15:901b:901b:1324:ada3:db24:b51f:5106	181.31.81.6
cb15:901b:901b:1324:ada3:db24:b51f:5107	181.31.81.7
cb15:901b:901b:1324:ada3:db24:b51f:5108	181.31.81.8
cb15:901b:901b:1324:ada3:db24:b51f:5109	181.31.81.9
cb15:901b:901b:1324:ada3:db24:b51f:510a	181.31.81.10
cb15:901b:901b:1324:ada3:db24:b51f:510b	181.31.81.11
cb15:901b:901b:1324:ada3:db24:b51f:510c	181.31.81.12
cb15:901b:901b:1324:ada3:db24:b51f:510d	181.31.81.13
cb15:901b:901b:1324:ada3:db24:b51f:510e	181.31.81.14
cb15:901b:901b:1324:ada3:db24:b51f:510f	181.31.81.15
cb15:901b:901b:1324:ada3:db24:b51f:5110	181.31.81.16
cb15:901b:901b:1324:ada3:db24:b51f:5111	181.31.81.17
cb15:901b:901b:1324:ada3:db24:b51f:5112	181.31.81.18
cb15:901b:901b:1324:ada3:db24:b51f:5113	181.31.81.19
cb15:901b:901b:1324:ada3:db24:b51f:5114	181.31.81.20
cb15:901b:901b:1324:ada3:db24:b51f:5115	181.31.81.21
cb15:901b:901b:1324:ada3:db24:b51f:5116	181.31.81.22
cb15:901b:901b:1324:ada3:db24:b51f:5117	181.31.81.23
cb15:901b:901b:1324:ada3:db24:b51f:5118	181.31.81.24
cb15:901b:901b:1324:ada3:db24:b51f:5119	181.31.81.25
cb15:901b:901b:1324:ada3:db24:b51f:511a	181.31.81.26
cb15:901b:901b:1324:ada3:db24:b51f:511b	181.31.81.27
cb15:901b:901b:1324:ada3:db24:b51f:511c	181.31.81.28
cb15:901b:901b:1324:ada3:db24:b51f:511d	181.31.81.29
cb15:901b:901b:1324:ada3:db24:b51f:511e	181.31.81.30
cb15:901b:901b:1324:ada3:db24:b51f:511f	181.31.81.31
cb15:901b:901b:1324:ada3:db24:b51f:5120	181.31.81.32
cb15:901b:901b:1324:ada3:db24:b51f:5121	181.31.81.33
cb15:901b:901b:1324:ada3:db24:b51f:5122	181.31.81.34
cb15:901b:901b:1324:ada3:db24:b51f:5123	181.31.81.35
cb15:901b:901b:1324:ada3:db24:b51f:5124	181.31.81.36
cb15:901b:901b:1324:ada3:db24:b51f:5125	181.31.81.37
cb15:901b:901b:1324:ada3:db24:b51f:5126	181.31.81.38
cb15:901b:901b:1324:ada3:db24:b51f:5127	181.31.81.39
cb15:901b:901b:1324:ada3:db24:b51f:5128	181.31.81.40
cb15:901b:901b:1324:ada3:db24:b51f:5129	181.31.81.41
cb15:901b:901b:1324:ada3:db24:b51f:512a	181.31.81.42
cb15:901b:901b:1324:ada3:db24:b51f:512b	181.31.81.43
cb15:901b:901b:1324:ada3:db24:b51f:512c	181.31.81.44
cb15:901b:901b:1324:ada3:db24:b51f:512d	181.31.81.45
cb15:901b:901b:1324:ada3:db24:b51f:512e	181.31.81.46
cb15:901b:901b:1324:ada3:db24:b51f:512f	181.31.81.47
cb15:901b:901b:1324:ada3:db24:b51f:5130	181.31.81.48
cb15:901b:901b:1324:ada3:db24:b51f:5131	181.31.81.49
cb15:901b:901b:1324:ada3:db24:b51f:5132	181.31.81.50
cb15:901b:901b:1324:ada3:db24:b51f:5133	181.31.81.51
cb15:901b:901b:1324:ada3:db24:b51f:5134	181.31.81.52
cb15:901b:901b:1324:ada3:db24:b51f:5135	181.31.81.53
cb15:901b:901b:1324:ada3:db24:b51f:5136	181.31.81.54
cb15:901b:901b:1324:ada3:db24:b51f:5137	181.31.81.55
cb15:901b:901b:1324:ada3:db24:b51f:5138	181.31.81.56
cb15:901b:901b:1324:ada3:db24:b51f:5139	181.31.81.57
cb15:901b:901b:1324:ada3:db24:b51f:513a	181.31.81.58
cb15:901b:901b:1324:ada3:db24:b51f:513b	181.31.81.59
cb15:901b:901b:1324:ada3:db24:b51f:513c	181.31.81.60

cb15:901b:901b:1324:ada3:db24:b51f:513d	181.31.81.61
cb15:901b:901b:1324:ada3:db24:b51f:513e	181.31.81.62
cb15:901b:901b:1324:ada3:db24:b51f:513f	181.31.81.63
cb15:901b:901b:1324:ada3:db24:b51f:5140	181.31.81.64
cb15:901b:901b:1324:ada3:db24:b51f:5141	181.31.81.65
cb15:901b:901b:1324:ada3:db24:b51f:5142	181.31.81.66
cb15:901b:901b:1324:ada3:db24:b51f:5143	181.31.81.67
cb15:901b:901b:1324:ada3:db24:b51f:5144	181.31.81.68
cb15:901b:901b:1324:ada3:db24:b51f:5145	181.31.81.69
cb15:901b:901b:1324:ada3:db24:b51f:5146	181.31.81.70
cb15:901b:901b:1324:ada3:db24:b51f:5147	181.31.81.71
cb15:901b:901b:1324:ada3:db24:b51f:5148	181.31.81.72
cb15:901b:901b:1324:ada3:db24:b51f:5149	181.31.81.73
cb15:901b:901b:1324:ada3:db24:b51f:514a	181.31.81.74
cb15:901b:901b:1324:ada3:db24:b51f:514b	181.31.81.75
cb15:901b:901b:1324:ada3:db24:b51f:514c	181.31.81.76
cb15:901b:901b:1324:ada3:db24:b51f:514d	181.31.81.77
cb15:901b:901b:1324:ada3:db24:b51f:514e	181.31.81.78
cb15:901b:901b:1324:ada3:db24:b51f:514f	181.31.81.79
cb15:901b:901b:1324:ada3:db24:b51f:5150	181.31.81.80
cb15:901b:901b:1324:ada3:db24:b51f:5151	181.31.81.81
cb15:901b:901b:1324:ada3:db24:b51f:5152	181.31.81.82
cb15:901b:901b:1324:ada3:db24:b51f:5153	181.31.81.83
cb15:901b:901b:1324:ada3:db24:b51f:5154	181.31.81.84
cb15:901b:901b:1324:ada3:db24:b51f:5155	181.31.81.85
cb15:901b:901b:1324:ada3:db24:b51f:5156	181.31.81.86
cb15:901b:901b:1324:ada3:db24:b51f:5157	181.31.81.87
cb15:901b:901b:1324:ada3:db24:b51f:5158	181.31.81.88
cb15:901b:901b:1324:ada3:db24:b51f:5159	181.31.81.89
cb15:901b:901b:1324:ada3:db24:b51f:515a	181.31.81.90
cb15:901b:901b:1324:ada3:db24:b51f:515b	181.31.81.91
cb15:901b:901b:1324:ada3:db24:b51f:515c	181.31.81.92
cb15:901b:901b:1324:ada3:db24:b51f:515d	181.31.81.93
cb15:901b:901b:1324:ada3:db24:b51f:515e	181.31.81.94
cb15:901b:901b:1324:ada3:db24:b51f:515f	181.31.81.95
cb15:901b:901b:1324:ada3:db24:b51f:5160	181.31.81.96
cb15:901b:901b:1324:ada3:db24:b51f:5161	181.31.81.97
cb15:901b:901b:1324:ada3:db24:b51f:5162	181.31.81.98
cb15:901b:901b:1324:ada3:db24:b51f:5163	181.31.81.99
cb15:901b:901b:1324:ada3:db24:b51f:5164	181.31.81.100
cb15:901b:901b:1324:ada3:db24:b51f:5165	181.31.81.101
cb15:901b:901b:1324:ada3:db24:b51f:5166	181.31.81.102
cb15:901b:901b:1324:ada3:db24:b51f:5167	181.31.81.103
cb15:901b:901b:1324:ada3:db24:b51f:5168	181.31.81.104
cb15:901b:901b:1324:ada3:db24:b51f:5169	181.31.81.105
cb15:901b:901b:1324:ada3:db24:b51f:516a	181.31.81.106
cb15:901b:901b:1324:ada3:db24:b51f:516b	181.31.81.107
cb15:901b:901b:1324:ada3:db24:b51f:516c	181.31.81.108
cb15:901b:901b:1324:ada3:db24:b51f:516d	181.31.81.109
cb15:901b:901b:1324:ada3:db24:b51f:516e	181.31.81.110
cb15:901b:901b:1324:ada3:db24:b51f:516f	181.31.81.111
cb15:901b:901b:1324:ada3:db24:b51f:5170	181.31.81.112
cb15:901b:901b:1324:ada3:db24:b51f:5171	181.31.81.113
cb15:901b:901b:1324:ada3:db24:b51f:5172	181.31.81.114
cb15:901b:901b:1324:ada3:db24:b51f:5173	181.31.81.115
cb15:901b:901b:1324:ada3:db24:b51f:5174	181.31.81.116
cb15:901b:901b:1324:ada3:db24:b51f:5175	181.31.81.117
cb15:901b:901b:1324:ada3:db24:b51f:5176	181.31.81.118
cb15:901b:901b:1324:ada3:db24:b51f:5177	181.31.81.119
cb15:901b:901b:1324:ada3:db24:b51f:5178	181.31.81.120

cb15:901b:901b:1324:ada3:db24:b51f:5179	181.31.81.121
cb15:901b:901b:1324:ada3:db24:b51f:517a	181.31.81.122
cb15:901b:901b:1324:ada3:db24:b51f:517b	181.31.81.123
cb15:901b:901b:1324:ada3:db24:b51f:517c	181.31.81.124
cb15:901b:901b:1324:ada3:db24:b51f:517d	181.31.81.125
cb15:901b:901b:1324:ada3:db24:b51f:517e	181.31.81.126
cb15:901b:901b:1324:ada3:db24:b51f:517f	181.31.81.127
cb15:901b:901b:1324:ada3:db24:b51f:5180	181.31.81.128
cb15:901b:901b:1324:ada3:db24:b51f:5181	181.31.81.129
cb15:901b:901b:1324:ada3:db24:b51f:5182	181.31.81.130
cb15:901b:901b:1324:ada3:db24:b51f:5183	181.31.81.131
cb15:901b:901b:1324:ada3:db24:b51f:5184	181.31.81.132
cb15:901b:901b:1324:ada3:db24:b51f:5185	181.31.81.133
cb15:901b:901b:1324:ada3:db24:b51f:5186	181.31.81.134
cb15:901b:901b:1324:ada3:db24:b51f:5187	181.31.81.135
cb15:901b:901b:1324:ada3:db24:b51f:5188	181.31.81.136
cb15:901b:901b:1324:ada3:db24:b51f:5189	181.31.81.137
cb15:901b:901b:1324:ada3:db24:b51f:518a	181.31.81.138
cb15:901b:901b:1324:ada3:db24:b51f:518b	181.31.81.139
cb15:901b:901b:1324:ada3:db24:b51f:518c	181.31.81.140
cb15:901b:901b:1324:ada3:db24:b51f:518d	181.31.81.141
cb15:901b:901b:1324:ada3:db24:b51f:518e	181.31.81.142
cb15:901b:901b:1324:ada3:db24:b51f:518f	181.31.81.143
cb15:901b:901b:1324:ada3:db24:b51f:5190	181.31.81.144
cb15:901b:901b:1324:ada3:db24:b51f:5191	181.31.81.145
cb15:901b:901b:1324:ada3:db24:b51f:5192	181.31.81.146
cb15:901b:901b:1324:ada3:db24:b51f:5193	181.31.81.147
cb15:901b:901b:1324:ada3:db24:b51f:5194	181.31.81.148
cb15:901b:901b:1324:ada3:db24:b51f:5195	181.31.81.149
cb15:901b:901b:1324:ada3:db24:b51f:5196	181.31.81.150
cb15:901b:901b:1324:ada3:db24:b51f:5197	181.31.81.151
cb15:901b:901b:1324:ada3:db24:b51f:5198	181.31.81.152
cb15:901b:901b:1324:ada3:db24:b51f:5199	181.31.81.153
cb15:901b:901b:1324:ada3:db24:b51f:519a	181.31.81.154
cb15:901b:901b:1324:ada3:db24:b51f:519b	181.31.81.155
cb15:901b:901b:1324:ada3:db24:b51f:519c	181.31.81.156
cb15:901b:901b:1324:ada3:db24:b51f:519d	181.31.81.157
cb15:901b:901b:1324:ada3:db24:b51f:519e	181.31.81.158
cb15:901b:901b:1324:ada3:db24:b51f:519f	181.31.81.159
cb15:901b:901b:1324:ada3:db24:b51f:51a0	181.31.81.160
cb15:901b:901b:1324:ada3:db24:b51f:51a1	181.31.81.161
cb15:901b:901b:1324:ada3:db24:b51f:51a2	181.31.81.162
cb15:901b:901b:1324:ada3:db24:b51f:51a3	181.31.81.163
cb15:901b:901b:1324:ada3:db24:b51f:51a4	181.31.81.164
cb15:901b:901b:1324:ada3:db24:b51f:51a5	181.31.81.165
cb15:901b:901b:1324:ada3:db24:b51f:51a6	181.31.81.166
cb15:901b:901b:1324:ada3:db24:b51f:51a7	181.31.81.167
cb15:901b:901b:1324:ada3:db24:b51f:51a8	181.31.81.168
cb15:901b:901b:1324:ada3:db24:b51f:51a9	181.31.81.169
cb15:901b:901b:1324:ada3:db24:b51f:51aa	181.31.81.170
cb15:901b:901b:1324:ada3:db24:b51f:51ab	181.31.81.171
cb15:901b:901b:1324:ada3:db24:b51f:51ac	181.31.81.172
cb15:901b:901b:1324:ada3:db24:b51f:51ad	181.31.81.173
cb15:901b:901b:1324:ada3:db24:b51f:51ae	181.31.81.174
cb15:901b:901b:1324:ada3:db24:b51f:51af	181.31.81.175
cb15:901b:901b:1324:ada3:db24:b51f:51b0	181.31.81.176
cb15:901b:901b:1324:ada3:db24:b51f:51b1	181.31.81.177
cb15:901b:901b:1324:ada3:db24:b51f:51b2	181.31.81.178
cb15:901b:901b:1324:ada3:db24:b51f:51b3	181.31.81.179
cb15:901b:901b:1324:ada3:db24:b51f:51b4	181.31.81.180

cb15:901b:901b:1324:ada3:db24:b51f:51b5	181.31.81.181
cb15:901b:901b:1324:ada3:db24:b51f:51b6	181.31.81.182
cb15:901b:901b:1324:ada3:db24:b51f:51b7	181.31.81.183
cb15:901b:901b:1324:ada3:db24:b51f:51b8	181.31.81.184
cb15:901b:901b:1324:ada3:db24:b51f:51b9	181.31.81.185
cb15:901b:901b:1324:ada3:db24:b51f:51ba	181.31.81.186
cb15:901b:901b:1324:ada3:db24:b51f:51bb	181.31.81.187
cb15:901b:901b:1324:ada3:db24:b51f:51bc	181.31.81.188
cb15:901b:901b:1324:ada3:db24:b51f:51bd	181.31.81.189
cb15:901b:901b:1324:ada3:db24:b51f:51be	181.31.81.190
cb15:901b:901b:1324:ada3:db24:b51f:51bf	181.31.81.191
cb15:901b:901b:1324:ada3:db24:b51f:51c0	181.31.81.192
cb15:901b:901b:1324:ada3:db24:b51f:51c1	181.31.81.193
cb15:901b:901b:1324:ada3:db24:b51f:51c2	181.31.81.194
cb15:901b:901b:1324:ada3:db24:b51f:51c3	181.31.81.195
cb15:901b:901b:1324:ada3:db24:b51f:51c4	181.31.81.196
cb15:901b:901b:1324:ada3:db24:b51f:51c5	181.31.81.197
cb15:901b:901b:1324:ada3:db24:b51f:51c6	181.31.81.198
cb15:901b:901b:1324:ada3:db24:b51f:51c7	181.31.81.199
cb15:901b:901b:1324:ada3:db24:b51f:51c8	181.31.81.200
cb15:901b:901b:1324:ada3:db24:b51f:51c9	181.31.81.201
cb15:901b:901b:1324:ada3:db24:b51f:51ca	181.31.81.202
cb15:901b:901b:1324:ada3:db24:b51f:51cb	181.31.81.203
cb15:901b:901b:1324:ada3:db24:b51f:51cc	181.31.81.204
cb15:901b:901b:1324:ada3:db24:b51f:51cd	181.31.81.205
cb15:901b:901b:1324:ada3:db24:b51f:51ce	181.31.81.206
cb15:901b:901b:1324:ada3:db24:b51f:51cf	181.31.81.207
cb15:901b:901b:1324:ada3:db24:b51f:51d0	181.31.81.208
cb15:901b:901b:1324:ada3:db24:b51f:51d1	181.31.81.209
cb15:901b:901b:1324:ada3:db24:b51f:51d2	181.31.81.210
cb15:901b:901b:1324:ada3:db24:b51f:51d3	181.31.81.211
cb15:901b:901b:1324:ada3:db24:b51f:51d4	181.31.81.212
cb15:901b:901b:1324:ada3:db24:b51f:51d5	181.31.81.213
cb15:901b:901b:1324:ada3:db24:b51f:51d6	181.31.81.214
cb15:901b:901b:1324:ada3:db24:b51f:51d7	181.31.81.215
cb15:901b:901b:1324:ada3:db24:b51f:51d8	181.31.81.216
cb15:901b:901b:1324:ada3:db24:b51f:51d9	181.31.81.217
cb15:901b:901b:1324:ada3:db24:b51f:51da	181.31.81.218
cb15:901b:901b:1324:ada3:db24:b51f:51db	181.31.81.219
cb15:901b:901b:1324:ada3:db24:b51f:51dc	181.31.81.220
cb15:901b:901b:1324:ada3:db24:b51f:51dd	181.31.81.221
cb15:901b:901b:1324:ada3:db24:b51f:51de	181.31.81.222
cb15:901b:901b:1324:ada3:db24:b51f:51df	181.31.81.223
cb15:901b:901b:1324:ada3:db24:b51f:51e0	181.31.81.224
cb15:901b:901b:1324:ada3:db24:b51f:51e1	181.31.81.225
cb15:901b:901b:1324:ada3:db24:b51f:51e2	181.31.81.226
cb15:901b:901b:1324:ada3:db24:b51f:51e3	181.31.81.227
cb15:901b:901b:1324:ada3:db24:b51f:51e4	181.31.81.228
cb15:901b:901b:1324:ada3:db24:b51f:51e5	181.31.81.229
cb15:901b:901b:1324:ada3:db24:b51f:51e6	181.31.81.230
cb15:901b:901b:1324:ada3:db24:b51f:51e7	181.31.81.231
cb15:901b:901b:1324:ada3:db24:b51f:51e8	181.31.81.232
cb15:901b:901b:1324:ada3:db24:b51f:51e9	181.31.81.233
cb15:901b:901b:1324:ada3:db24:b51f:51ea	181.31.81.234
cb15:901b:901b:1324:ada3:db24:b51f:51eb	181.31.81.235
cb15:901b:901b:1324:ada3:db24:b51f:51ec	181.31.81.236
cb15:901b:901b:1324:ada3:db24:b51f:51ed	181.31.81.237
cb15:901b:901b:1324:ada3:db24:b51f:51ee	181.31.81.238
cb15:901b:901b:1324:ada3:db24:b51f:51ef	181.31.81.239
cb15:901b:901b:1324:ada3:db24:b51f:51f0	181.31.81.240
cb15:901b:901b:1324:ada3:db24:b51f:51f1	181.31.81.241
cb15:901b:901b:1324:ada3:db24:b51f:51f2	181.31.81.242
cb15:901b:901b:1324:ada3:db24:b51f:51f3	181.31.81.243
cb15:901b:901b:1324:ada3:db24:b51f:51f4	181.31.81.244
cb15:901b:901b:1324:ada3:db24:b51f:51f5	181.31.81.245
cb15:901b:901b:1324:ada3:db24:b51f:51f6	181.31.81.246
cb15:901b:901b:1324:ada3:db24:b51f:51f7	181.31.81.247
cb15:901b:901b:1324:ada3:db24:b51f:51f8	181.31.81.248
cb15:901b:901b:1324:ada3:db24:b51f:51f9	181.31.81.249
cb15:901b:901b:1324:ada3:db24:b51f:51fa	181.31.81.250
cb15:901b:901b:1324:ada3:db24:b51f:51fb	181.31.81.251
cb15:901b:901b:1324:ada3:db24:b51f:51fc	181.31.81.252
cb15:901b:901b:1324:ada3:db24:b51f:51fd	181.31.81.253
cb15:901b:901b:1324:ada3:db24:b51f:51fe	181.31.81.254
cb15:901b:901b:1324:ada3:db24:b51f:51ff	181.31.81.255

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.