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:7901	181.31.121.1
cb15:901b:901b:1324:ada3:db24:b51f:7902	181.31.121.2
cb15:901b:901b:1324:ada3:db24:b51f:7903	181.31.121.3
cb15:901b:901b:1324:ada3:db24:b51f:7904	181.31.121.4
cb15:901b:901b:1324:ada3:db24:b51f:7905	181.31.121.5
cb15:901b:901b:1324:ada3:db24:b51f:7906	181.31.121.6
cb15:901b:901b:1324:ada3:db24:b51f:7907	181.31.121.7
cb15:901b:901b:1324:ada3:db24:b51f:7908	181.31.121.8
cb15:901b:901b:1324:ada3:db24:b51f:7909	181.31.121.9
cb15:901b:901b:1324:ada3:db24:b51f:790a	181.31.121.10
cb15:901b:901b:1324:ada3:db24:b51f:790b	181.31.121.11
cb15:901b:901b:1324:ada3:db24:b51f:790c	181.31.121.12
cb15:901b:901b:1324:ada3:db24:b51f:790d	181.31.121.13
cb15:901b:901b:1324:ada3:db24:b51f:790e	181.31.121.14
cb15:901b:901b:1324:ada3:db24:b51f:790f	181.31.121.15
cb15:901b:901b:1324:ada3:db24:b51f:7910	181.31.121.16
cb15:901b:901b:1324:ada3:db24:b51f:7911	181.31.121.17
cb15:901b:901b:1324:ada3:db24:b51f:7912	181.31.121.18
cb15:901b:901b:1324:ada3:db24:b51f:7913	181.31.121.19
cb15:901b:901b:1324:ada3:db24:b51f:7914	181.31.121.20
cb15:901b:901b:1324:ada3:db24:b51f:7915	181.31.121.21
cb15:901b:901b:1324:ada3:db24:b51f:7916	181.31.121.22
cb15:901b:901b:1324:ada3:db24:b51f:7917	181.31.121.23
cb15:901b:901b:1324:ada3:db24:b51f:7918	181.31.121.24
cb15:901b:901b:1324:ada3:db24:b51f:7919	181.31.121.25
cb15:901b:901b:1324:ada3:db24:b51f:791a	181.31.121.26
cb15:901b:901b:1324:ada3:db24:b51f:791b	181.31.121.27
cb15:901b:901b:1324:ada3:db24:b51f:791c	181.31.121.28
cb15:901b:901b:1324:ada3:db24:b51f:791d	181.31.121.29
cb15:901b:901b:1324:ada3:db24:b51f:791e	181.31.121.30
cb15:901b:901b:1324:ada3:db24:b51f:791f	181.31.121.31
cb15:901b:901b:1324:ada3:db24:b51f:7920	181.31.121.32
cb15:901b:901b:1324:ada3:db24:b51f:7921	181.31.121.33
cb15:901b:901b:1324:ada3:db24:b51f:7922	181.31.121.34
cb15:901b:901b:1324:ada3:db24:b51f:7923	181.31.121.35
cb15:901b:901b:1324:ada3:db24:b51f:7924	181.31.121.36
cb15:901b:901b:1324:ada3:db24:b51f:7925	181.31.121.37
cb15:901b:901b:1324:ada3:db24:b51f:7926	181.31.121.38
cb15:901b:901b:1324:ada3:db24:b51f:7927	181.31.121.39
cb15:901b:901b:1324:ada3:db24:b51f:7928	181.31.121.40
cb15:901b:901b:1324:ada3:db24:b51f:7929	181.31.121.41
cb15:901b:901b:1324:ada3:db24:b51f:792a	181.31.121.42
cb15:901b:901b:1324:ada3:db24:b51f:792b	181.31.121.43
cb15:901b:901b:1324:ada3:db24:b51f:792c	181.31.121.44
cb15:901b:901b:1324:ada3:db24:b51f:792d	181.31.121.45
cb15:901b:901b:1324:ada3:db24:b51f:792e	181.31.121.46
cb15:901b:901b:1324:ada3:db24:b51f:792f	181.31.121.47
cb15:901b:901b:1324:ada3:db24:b51f:7930	181.31.121.48
cb15:901b:901b:1324:ada3:db24:b51f:7931	181.31.121.49
cb15:901b:901b:1324:ada3:db24:b51f:7932	181.31.121.50
cb15:901b:901b:1324:ada3:db24:b51f:7933	181.31.121.51
cb15:901b:901b:1324:ada3:db24:b51f:7934	181.31.121.52
cb15:901b:901b:1324:ada3:db24:b51f:7935	181.31.121.53
cb15:901b:901b:1324:ada3:db24:b51f:7936	181.31.121.54
cb15:901b:901b:1324:ada3:db24:b51f:7937	181.31.121.55
cb15:901b:901b:1324:ada3:db24:b51f:7938	181.31.121.56
cb15:901b:901b:1324:ada3:db24:b51f:7939	181.31.121.57
cb15:901b:901b:1324:ada3:db24:b51f:793a	181.31.121.58
cb15:901b:901b:1324:ada3:db24:b51f:793b	181.31.121.59
cb15:901b:901b:1324:ada3:db24:b51f:793c	181.31.121.60

cb15:901b:901b:1324:ada3:db24:b51f:793d	181.31.121.61
cb15:901b:901b:1324:ada3:db24:b51f:793e	181.31.121.62
cb15:901b:901b:1324:ada3:db24:b51f:793f	181.31.121.63
cb15:901b:901b:1324:ada3:db24:b51f:7940	181.31.121.64
cb15:901b:901b:1324:ada3:db24:b51f:7941	181.31.121.65
cb15:901b:901b:1324:ada3:db24:b51f:7942	181.31.121.66
cb15:901b:901b:1324:ada3:db24:b51f:7943	181.31.121.67
cb15:901b:901b:1324:ada3:db24:b51f:7944	181.31.121.68
cb15:901b:901b:1324:ada3:db24:b51f:7945	181.31.121.69
cb15:901b:901b:1324:ada3:db24:b51f:7946	181.31.121.70
cb15:901b:901b:1324:ada3:db24:b51f:7947	181.31.121.71
cb15:901b:901b:1324:ada3:db24:b51f:7948	181.31.121.72
cb15:901b:901b:1324:ada3:db24:b51f:7949	181.31.121.73
cb15:901b:901b:1324:ada3:db24:b51f:794a	181.31.121.74
cb15:901b:901b:1324:ada3:db24:b51f:794b	181.31.121.75
cb15:901b:901b:1324:ada3:db24:b51f:794c	181.31.121.76
cb15:901b:901b:1324:ada3:db24:b51f:794d	181.31.121.77
cb15:901b:901b:1324:ada3:db24:b51f:794e	181.31.121.78
cb15:901b:901b:1324:ada3:db24:b51f:794f	181.31.121.79
cb15:901b:901b:1324:ada3:db24:b51f:7950	181.31.121.80
cb15:901b:901b:1324:ada3:db24:b51f:7951	181.31.121.81
cb15:901b:901b:1324:ada3:db24:b51f:7952	181.31.121.82
cb15:901b:901b:1324:ada3:db24:b51f:7953	181.31.121.83
cb15:901b:901b:1324:ada3:db24:b51f:7954	181.31.121.84
cb15:901b:901b:1324:ada3:db24:b51f:7955	181.31.121.85
cb15:901b:901b:1324:ada3:db24:b51f:7956	181.31.121.86
cb15:901b:901b:1324:ada3:db24:b51f:7957	181.31.121.87
cb15:901b:901b:1324:ada3:db24:b51f:7958	181.31.121.88
cb15:901b:901b:1324:ada3:db24:b51f:7959	181.31.121.89
cb15:901b:901b:1324:ada3:db24:b51f:795a	181.31.121.90
cb15:901b:901b:1324:ada3:db24:b51f:795b	181.31.121.91
cb15:901b:901b:1324:ada3:db24:b51f:795c	181.31.121.92
cb15:901b:901b:1324:ada3:db24:b51f:795d	181.31.121.93
cb15:901b:901b:1324:ada3:db24:b51f:795e	181.31.121.94
cb15:901b:901b:1324:ada3:db24:b51f:795f	181.31.121.95
cb15:901b:901b:1324:ada3:db24:b51f:7960	181.31.121.96
cb15:901b:901b:1324:ada3:db24:b51f:7961	181.31.121.97
cb15:901b:901b:1324:ada3:db24:b51f:7962	181.31.121.98
cb15:901b:901b:1324:ada3:db24:b51f:7963	181.31.121.99
cb15:901b:901b:1324:ada3:db24:b51f:7964	181.31.121.100
cb15:901b:901b:1324:ada3:db24:b51f:7965	181.31.121.101
cb15:901b:901b:1324:ada3:db24:b51f:7966	181.31.121.102
cb15:901b:901b:1324:ada3:db24:b51f:7967	181.31.121.103
cb15:901b:901b:1324:ada3:db24:b51f:7968	181.31.121.104
cb15:901b:901b:1324:ada3:db24:b51f:7969	181.31.121.105
cb15:901b:901b:1324:ada3:db24:b51f:796a	181.31.121.106
cb15:901b:901b:1324:ada3:db24:b51f:796b	181.31.121.107
cb15:901b:901b:1324:ada3:db24:b51f:796c	181.31.121.108
cb15:901b:901b:1324:ada3:db24:b51f:796d	181.31.121.109
cb15:901b:901b:1324:ada3:db24:b51f:796e	181.31.121.110
cb15:901b:901b:1324:ada3:db24:b51f:796f	181.31.121.111
cb15:901b:901b:1324:ada3:db24:b51f:7970	181.31.121.112
cb15:901b:901b:1324:ada3:db24:b51f:7971	181.31.121.113
cb15:901b:901b:1324:ada3:db24:b51f:7972	181.31.121.114
cb15:901b:901b:1324:ada3:db24:b51f:7973	181.31.121.115
cb15:901b:901b:1324:ada3:db24:b51f:7974	181.31.121.116
cb15:901b:901b:1324:ada3:db24:b51f:7975	181.31.121.117
cb15:901b:901b:1324:ada3:db24:b51f:7976	181.31.121.118
cb15:901b:901b:1324:ada3:db24:b51f:7977	181.31.121.119
cb15:901b:901b:1324:ada3:db24:b51f:7978	181.31.121.120

cb15:901b:901b:1324:ada3:db24:b51f:7979	181.31.121.121
cb15:901b:901b:1324:ada3:db24:b51f:797a	181.31.121.122
cb15:901b:901b:1324:ada3:db24:b51f:797b	181.31.121.123
cb15:901b:901b:1324:ada3:db24:b51f:797c	181.31.121.124
cb15:901b:901b:1324:ada3:db24:b51f:797d	181.31.121.125
cb15:901b:901b:1324:ada3:db24:b51f:797e	181.31.121.126
cb15:901b:901b:1324:ada3:db24:b51f:797f	181.31.121.127
cb15:901b:901b:1324:ada3:db24:b51f:7980	181.31.121.128
cb15:901b:901b:1324:ada3:db24:b51f:7981	181.31.121.129
cb15:901b:901b:1324:ada3:db24:b51f:7982	181.31.121.130
cb15:901b:901b:1324:ada3:db24:b51f:7983	181.31.121.131
cb15:901b:901b:1324:ada3:db24:b51f:7984	181.31.121.132
cb15:901b:901b:1324:ada3:db24:b51f:7985	181.31.121.133
cb15:901b:901b:1324:ada3:db24:b51f:7986	181.31.121.134
cb15:901b:901b:1324:ada3:db24:b51f:7987	181.31.121.135
cb15:901b:901b:1324:ada3:db24:b51f:7988	181.31.121.136
cb15:901b:901b:1324:ada3:db24:b51f:7989	181.31.121.137
cb15:901b:901b:1324:ada3:db24:b51f:798a	181.31.121.138
cb15:901b:901b:1324:ada3:db24:b51f:798b	181.31.121.139
cb15:901b:901b:1324:ada3:db24:b51f:798c	181.31.121.140
cb15:901b:901b:1324:ada3:db24:b51f:798d	181.31.121.141
cb15:901b:901b:1324:ada3:db24:b51f:798e	181.31.121.142
cb15:901b:901b:1324:ada3:db24:b51f:798f	181.31.121.143
cb15:901b:901b:1324:ada3:db24:b51f:7990	181.31.121.144
cb15:901b:901b:1324:ada3:db24:b51f:7991	181.31.121.145
cb15:901b:901b:1324:ada3:db24:b51f:7992	181.31.121.146
cb15:901b:901b:1324:ada3:db24:b51f:7993	181.31.121.147
cb15:901b:901b:1324:ada3:db24:b51f:7994	181.31.121.148
cb15:901b:901b:1324:ada3:db24:b51f:7995	181.31.121.149
cb15:901b:901b:1324:ada3:db24:b51f:7996	181.31.121.150
cb15:901b:901b:1324:ada3:db24:b51f:7997	181.31.121.151
cb15:901b:901b:1324:ada3:db24:b51f:7998	181.31.121.152
cb15:901b:901b:1324:ada3:db24:b51f:7999	181.31.121.153
cb15:901b:901b:1324:ada3:db24:b51f:799a	181.31.121.154
cb15:901b:901b:1324:ada3:db24:b51f:799b	181.31.121.155
cb15:901b:901b:1324:ada3:db24:b51f:799c	181.31.121.156
cb15:901b:901b:1324:ada3:db24:b51f:799d	181.31.121.157
cb15:901b:901b:1324:ada3:db24:b51f:799e	181.31.121.158
cb15:901b:901b:1324:ada3:db24:b51f:799f	181.31.121.159
cb15:901b:901b:1324:ada3:db24:b51f:79a0	181.31.121.160
cb15:901b:901b:1324:ada3:db24:b51f:79a1	181.31.121.161
cb15:901b:901b:1324:ada3:db24:b51f:79a2	181.31.121.162
cb15:901b:901b:1324:ada3:db24:b51f:79a3	181.31.121.163
cb15:901b:901b:1324:ada3:db24:b51f:79a4	181.31.121.164
cb15:901b:901b:1324:ada3:db24:b51f:79a5	181.31.121.165
cb15:901b:901b:1324:ada3:db24:b51f:79a6	181.31.121.166
cb15:901b:901b:1324:ada3:db24:b51f:79a7	181.31.121.167
cb15:901b:901b:1324:ada3:db24:b51f:79a8	181.31.121.168
cb15:901b:901b:1324:ada3:db24:b51f:79a9	181.31.121.169
cb15:901b:901b:1324:ada3:db24:b51f:79aa	181.31.121.170
cb15:901b:901b:1324:ada3:db24:b51f:79ab	181.31.121.171
cb15:901b:901b:1324:ada3:db24:b51f:79ac	181.31.121.172
cb15:901b:901b:1324:ada3:db24:b51f:79ad	181.31.121.173
cb15:901b:901b:1324:ada3:db24:b51f:79ae	181.31.121.174
cb15:901b:901b:1324:ada3:db24:b51f:79af	181.31.121.175
cb15:901b:901b:1324:ada3:db24:b51f:79b0	181.31.121.176
cb15:901b:901b:1324:ada3:db24:b51f:79b1	181.31.121.177
cb15:901b:901b:1324:ada3:db24:b51f:79b2	181.31.121.178
cb15:901b:901b:1324:ada3:db24:b51f:79b3	181.31.121.179
cb15:901b:901b:1324:ada3:db24:b51f:79b4	181.31.121.180

cb15:901b:901b:1324:ada3:db24:b51f:79b5	181.31.121.181
cb15:901b:901b:1324:ada3:db24:b51f:79b6	181.31.121.182
cb15:901b:901b:1324:ada3:db24:b51f:79b7	181.31.121.183
cb15:901b:901b:1324:ada3:db24:b51f:79b8	181.31.121.184
cb15:901b:901b:1324:ada3:db24:b51f:79b9	181.31.121.185
cb15:901b:901b:1324:ada3:db24:b51f:79ba	181.31.121.186
cb15:901b:901b:1324:ada3:db24:b51f:79bb	181.31.121.187
cb15:901b:901b:1324:ada3:db24:b51f:79bc	181.31.121.188
cb15:901b:901b:1324:ada3:db24:b51f:79bd	181.31.121.189
cb15:901b:901b:1324:ada3:db24:b51f:79be	181.31.121.190
cb15:901b:901b:1324:ada3:db24:b51f:79bf	181.31.121.191
cb15:901b:901b:1324:ada3:db24:b51f:79c0	181.31.121.192
cb15:901b:901b:1324:ada3:db24:b51f:79c1	181.31.121.193
cb15:901b:901b:1324:ada3:db24:b51f:79c2	181.31.121.194
cb15:901b:901b:1324:ada3:db24:b51f:79c3	181.31.121.195
cb15:901b:901b:1324:ada3:db24:b51f:79c4	181.31.121.196
cb15:901b:901b:1324:ada3:db24:b51f:79c5	181.31.121.197
cb15:901b:901b:1324:ada3:db24:b51f:79c6	181.31.121.198
cb15:901b:901b:1324:ada3:db24:b51f:79c7	181.31.121.199
cb15:901b:901b:1324:ada3:db24:b51f:79c8	181.31.121.200
cb15:901b:901b:1324:ada3:db24:b51f:79c9	181.31.121.201
cb15:901b:901b:1324:ada3:db24:b51f:79ca	181.31.121.202
cb15:901b:901b:1324:ada3:db24:b51f:79cb	181.31.121.203
cb15:901b:901b:1324:ada3:db24:b51f:79cc	181.31.121.204
cb15:901b:901b:1324:ada3:db24:b51f:79cd	181.31.121.205
cb15:901b:901b:1324:ada3:db24:b51f:79ce	181.31.121.206
cb15:901b:901b:1324:ada3:db24:b51f:79cf	181.31.121.207
cb15:901b:901b:1324:ada3:db24:b51f:79d0	181.31.121.208
cb15:901b:901b:1324:ada3:db24:b51f:79d1	181.31.121.209
cb15:901b:901b:1324:ada3:db24:b51f:79d2	181.31.121.210
cb15:901b:901b:1324:ada3:db24:b51f:79d3	181.31.121.211
cb15:901b:901b:1324:ada3:db24:b51f:79d4	181.31.121.212
cb15:901b:901b:1324:ada3:db24:b51f:79d5	181.31.121.213
cb15:901b:901b:1324:ada3:db24:b51f:79d6	181.31.121.214
cb15:901b:901b:1324:ada3:db24:b51f:79d7	181.31.121.215
cb15:901b:901b:1324:ada3:db24:b51f:79d8	181.31.121.216
cb15:901b:901b:1324:ada3:db24:b51f:79d9	181.31.121.217
cb15:901b:901b:1324:ada3:db24:b51f:79da	181.31.121.218
cb15:901b:901b:1324:ada3:db24:b51f:79db	181.31.121.219
cb15:901b:901b:1324:ada3:db24:b51f:79dc	181.31.121.220
cb15:901b:901b:1324:ada3:db24:b51f:79dd	181.31.121.221
cb15:901b:901b:1324:ada3:db24:b51f:79de	181.31.121.222
cb15:901b:901b:1324:ada3:db24:b51f:79df	181.31.121.223
cb15:901b:901b:1324:ada3:db24:b51f:79e0	181.31.121.224
cb15:901b:901b:1324:ada3:db24:b51f:79e1	181.31.121.225
cb15:901b:901b:1324:ada3:db24:b51f:79e2	181.31.121.226
cb15:901b:901b:1324:ada3:db24:b51f:79e3	181.31.121.227
cb15:901b:901b:1324:ada3:db24:b51f:79e4	181.31.121.228
cb15:901b:901b:1324:ada3:db24:b51f:79e5	181.31.121.229
cb15:901b:901b:1324:ada3:db24:b51f:79e6	181.31.121.230
cb15:901b:901b:1324:ada3:db24:b51f:79e7	181.31.121.231
cb15:901b:901b:1324:ada3:db24:b51f:79e8	181.31.121.232
cb15:901b:901b:1324:ada3:db24:b51f:79e9	181.31.121.233
cb15:901b:901b:1324:ada3:db24:b51f:79ea	181.31.121.234
cb15:901b:901b:1324:ada3:db24:b51f:79eb	181.31.121.235
cb15:901b:901b:1324:ada3:db24:b51f:79ec	181.31.121.236
cb15:901b:901b:1324:ada3:db24:b51f:79ed	181.31.121.237
cb15:901b:901b:1324:ada3:db24:b51f:79ee	181.31.121.238
cb15:901b:901b:1324:ada3:db24:b51f:79ef	181.31.121.239
cb15:901b:901b:1324:ada3:db24:b51f:79f0	181.31.121.240
cb15:901b:901b:1324:ada3:db24:b51f:79f1	181.31.121.241
cb15:901b:901b:1324:ada3:db24:b51f:79f2	181.31.121.242
cb15:901b:901b:1324:ada3:db24:b51f:79f3	181.31.121.243
cb15:901b:901b:1324:ada3:db24:b51f:79f4	181.31.121.244
cb15:901b:901b:1324:ada3:db24:b51f:79f5	181.31.121.245
cb15:901b:901b:1324:ada3:db24:b51f:79f6	181.31.121.246
cb15:901b:901b:1324:ada3:db24:b51f:79f7	181.31.121.247
cb15:901b:901b:1324:ada3:db24:b51f:79f8	181.31.121.248
cb15:901b:901b:1324:ada3:db24:b51f:79f9	181.31.121.249
cb15:901b:901b:1324:ada3:db24:b51f:79fa	181.31.121.250
cb15:901b:901b:1324:ada3:db24:b51f:79fb	181.31.121.251
cb15:901b:901b:1324:ada3:db24:b51f:79fc	181.31.121.252
cb15:901b:901b:1324:ada3:db24:b51f:79fd	181.31.121.253
cb15:901b:901b:1324:ada3:db24:b51f:79fe	181.31.121.254
cb15:901b:901b:1324:ada3:db24:b51f:79ff	181.31.121.255

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.