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:fb65:4024:3136:b51f:1201	181.31.18.1
cb15:901b:901b:fb65:4024:3136:b51f:1202	181.31.18.2
cb15:901b:901b:fb65:4024:3136:b51f:1203	181.31.18.3
cb15:901b:901b:fb65:4024:3136:b51f:1204	181.31.18.4
cb15:901b:901b:fb65:4024:3136:b51f:1205	181.31.18.5
cb15:901b:901b:fb65:4024:3136:b51f:1206	181.31.18.6
cb15:901b:901b:fb65:4024:3136:b51f:1207	181.31.18.7
cb15:901b:901b:fb65:4024:3136:b51f:1208	181.31.18.8
cb15:901b:901b:fb65:4024:3136:b51f:1209	181.31.18.9
cb15:901b:901b:fb65:4024:3136:b51f:120a	181.31.18.10
cb15:901b:901b:fb65:4024:3136:b51f:120b	181.31.18.11
cb15:901b:901b:fb65:4024:3136:b51f:120c	181.31.18.12
cb15:901b:901b:fb65:4024:3136:b51f:120d	181.31.18.13
cb15:901b:901b:fb65:4024:3136:b51f:120e	181.31.18.14
cb15:901b:901b:fb65:4024:3136:b51f:120f	181.31.18.15
cb15:901b:901b:fb65:4024:3136:b51f:1210	181.31.18.16
cb15:901b:901b:fb65:4024:3136:b51f:1211	181.31.18.17
cb15:901b:901b:fb65:4024:3136:b51f:1212	181.31.18.18
cb15:901b:901b:fb65:4024:3136:b51f:1213	181.31.18.19
cb15:901b:901b:fb65:4024:3136:b51f:1214	181.31.18.20
cb15:901b:901b:fb65:4024:3136:b51f:1215	181.31.18.21
cb15:901b:901b:fb65:4024:3136:b51f:1216	181.31.18.22
cb15:901b:901b:fb65:4024:3136:b51f:1217	181.31.18.23
cb15:901b:901b:fb65:4024:3136:b51f:1218	181.31.18.24
cb15:901b:901b:fb65:4024:3136:b51f:1219	181.31.18.25
cb15:901b:901b:fb65:4024:3136:b51f:121a	181.31.18.26
cb15:901b:901b:fb65:4024:3136:b51f:121b	181.31.18.27
cb15:901b:901b:fb65:4024:3136:b51f:121c	181.31.18.28
cb15:901b:901b:fb65:4024:3136:b51f:121d	181.31.18.29
cb15:901b:901b:fb65:4024:3136:b51f:121e	181.31.18.30
cb15:901b:901b:fb65:4024:3136:b51f:121f	181.31.18.31
cb15:901b:901b:fb65:4024:3136:b51f:1220	181.31.18.32
cb15:901b:901b:fb65:4024:3136:b51f:1221	181.31.18.33
cb15:901b:901b:fb65:4024:3136:b51f:1222	181.31.18.34
cb15:901b:901b:fb65:4024:3136:b51f:1223	181.31.18.35
cb15:901b:901b:fb65:4024:3136:b51f:1224	181.31.18.36
cb15:901b:901b:fb65:4024:3136:b51f:1225	181.31.18.37
cb15:901b:901b:fb65:4024:3136:b51f:1226	181.31.18.38
cb15:901b:901b:fb65:4024:3136:b51f:1227	181.31.18.39
cb15:901b:901b:fb65:4024:3136:b51f:1228	181.31.18.40
cb15:901b:901b:fb65:4024:3136:b51f:1229	181.31.18.41
cb15:901b:901b:fb65:4024:3136:b51f:122a	181.31.18.42
cb15:901b:901b:fb65:4024:3136:b51f:122b	181.31.18.43
cb15:901b:901b:fb65:4024:3136:b51f:122c	181.31.18.44
cb15:901b:901b:fb65:4024:3136:b51f:122d	181.31.18.45
cb15:901b:901b:fb65:4024:3136:b51f:122e	181.31.18.46
cb15:901b:901b:fb65:4024:3136:b51f:122f	181.31.18.47
cb15:901b:901b:fb65:4024:3136:b51f:1230	181.31.18.48
cb15:901b:901b:fb65:4024:3136:b51f:1231	181.31.18.49
cb15:901b:901b:fb65:4024:3136:b51f:1232	181.31.18.50
cb15:901b:901b:fb65:4024:3136:b51f:1233	181.31.18.51
cb15:901b:901b:fb65:4024:3136:b51f:1234	181.31.18.52
cb15:901b:901b:fb65:4024:3136:b51f:1235	181.31.18.53
cb15:901b:901b:fb65:4024:3136:b51f:1236	181.31.18.54
cb15:901b:901b:fb65:4024:3136:b51f:1237	181.31.18.55
cb15:901b:901b:fb65:4024:3136:b51f:1238	181.31.18.56
cb15:901b:901b:fb65:4024:3136:b51f:1239	181.31.18.57
cb15:901b:901b:fb65:4024:3136:b51f:123a	181.31.18.58
cb15:901b:901b:fb65:4024:3136:b51f:123b	181.31.18.59
cb15:901b:901b:fb65:4024:3136:b51f:123c	181.31.18.60

cb15:901b:901b:fb65:4024:3136:b51f:123d	181.31.18.61
cb15:901b:901b:fb65:4024:3136:b51f:123e	181.31.18.62
cb15:901b:901b:fb65:4024:3136:b51f:123f	181.31.18.63
cb15:901b:901b:fb65:4024:3136:b51f:1240	181.31.18.64
cb15:901b:901b:fb65:4024:3136:b51f:1241	181.31.18.65
cb15:901b:901b:fb65:4024:3136:b51f:1242	181.31.18.66
cb15:901b:901b:fb65:4024:3136:b51f:1243	181.31.18.67
cb15:901b:901b:fb65:4024:3136:b51f:1244	181.31.18.68
cb15:901b:901b:fb65:4024:3136:b51f:1245	181.31.18.69
cb15:901b:901b:fb65:4024:3136:b51f:1246	181.31.18.70
cb15:901b:901b:fb65:4024:3136:b51f:1247	181.31.18.71
cb15:901b:901b:fb65:4024:3136:b51f:1248	181.31.18.72
cb15:901b:901b:fb65:4024:3136:b51f:1249	181.31.18.73
cb15:901b:901b:fb65:4024:3136:b51f:124a	181.31.18.74
cb15:901b:901b:fb65:4024:3136:b51f:124b	181.31.18.75
cb15:901b:901b:fb65:4024:3136:b51f:124c	181.31.18.76
cb15:901b:901b:fb65:4024:3136:b51f:124d	181.31.18.77
cb15:901b:901b:fb65:4024:3136:b51f:124e	181.31.18.78
cb15:901b:901b:fb65:4024:3136:b51f:124f	181.31.18.79
cb15:901b:901b:fb65:4024:3136:b51f:1250	181.31.18.80
cb15:901b:901b:fb65:4024:3136:b51f:1251	181.31.18.81
cb15:901b:901b:fb65:4024:3136:b51f:1252	181.31.18.82
cb15:901b:901b:fb65:4024:3136:b51f:1253	181.31.18.83
cb15:901b:901b:fb65:4024:3136:b51f:1254	181.31.18.84
cb15:901b:901b:fb65:4024:3136:b51f:1255	181.31.18.85
cb15:901b:901b:fb65:4024:3136:b51f:1256	181.31.18.86
cb15:901b:901b:fb65:4024:3136:b51f:1257	181.31.18.87
cb15:901b:901b:fb65:4024:3136:b51f:1258	181.31.18.88
cb15:901b:901b:fb65:4024:3136:b51f:1259	181.31.18.89
cb15:901b:901b:fb65:4024:3136:b51f:125a	181.31.18.90
cb15:901b:901b:fb65:4024:3136:b51f:125b	181.31.18.91
cb15:901b:901b:fb65:4024:3136:b51f:125c	181.31.18.92
cb15:901b:901b:fb65:4024:3136:b51f:125d	181.31.18.93
cb15:901b:901b:fb65:4024:3136:b51f:125e	181.31.18.94
cb15:901b:901b:fb65:4024:3136:b51f:125f	181.31.18.95
cb15:901b:901b:fb65:4024:3136:b51f:1260	181.31.18.96
cb15:901b:901b:fb65:4024:3136:b51f:1261	181.31.18.97
cb15:901b:901b:fb65:4024:3136:b51f:1262	181.31.18.98
cb15:901b:901b:fb65:4024:3136:b51f:1263	181.31.18.99
cb15:901b:901b:fb65:4024:3136:b51f:1264	181.31.18.100
cb15:901b:901b:fb65:4024:3136:b51f:1265	181.31.18.101
cb15:901b:901b:fb65:4024:3136:b51f:1266	181.31.18.102
cb15:901b:901b:fb65:4024:3136:b51f:1267	181.31.18.103
cb15:901b:901b:fb65:4024:3136:b51f:1268	181.31.18.104
cb15:901b:901b:fb65:4024:3136:b51f:1269	181.31.18.105
cb15:901b:901b:fb65:4024:3136:b51f:126a	181.31.18.106
cb15:901b:901b:fb65:4024:3136:b51f:126b	181.31.18.107
cb15:901b:901b:fb65:4024:3136:b51f:126c	181.31.18.108
cb15:901b:901b:fb65:4024:3136:b51f:126d	181.31.18.109
cb15:901b:901b:fb65:4024:3136:b51f:126e	181.31.18.110
cb15:901b:901b:fb65:4024:3136:b51f:126f	181.31.18.111
cb15:901b:901b:fb65:4024:3136:b51f:1270	181.31.18.112
cb15:901b:901b:fb65:4024:3136:b51f:1271	181.31.18.113
cb15:901b:901b:fb65:4024:3136:b51f:1272	181.31.18.114
cb15:901b:901b:fb65:4024:3136:b51f:1273	181.31.18.115
cb15:901b:901b:fb65:4024:3136:b51f:1274	181.31.18.116
cb15:901b:901b:fb65:4024:3136:b51f:1275	181.31.18.117
cb15:901b:901b:fb65:4024:3136:b51f:1276	181.31.18.118
cb15:901b:901b:fb65:4024:3136:b51f:1277	181.31.18.119
cb15:901b:901b:fb65:4024:3136:b51f:1278	181.31.18.120

cb15:901b:901b:fb65:4024:3136:b51f:1279	181.31.18.121
cb15:901b:901b:fb65:4024:3136:b51f:127a	181.31.18.122
cb15:901b:901b:fb65:4024:3136:b51f:127b	181.31.18.123
cb15:901b:901b:fb65:4024:3136:b51f:127c	181.31.18.124
cb15:901b:901b:fb65:4024:3136:b51f:127d	181.31.18.125
cb15:901b:901b:fb65:4024:3136:b51f:127e	181.31.18.126
cb15:901b:901b:fb65:4024:3136:b51f:127f	181.31.18.127
cb15:901b:901b:fb65:4024:3136:b51f:1280	181.31.18.128
cb15:901b:901b:fb65:4024:3136:b51f:1281	181.31.18.129
cb15:901b:901b:fb65:4024:3136:b51f:1282	181.31.18.130
cb15:901b:901b:fb65:4024:3136:b51f:1283	181.31.18.131
cb15:901b:901b:fb65:4024:3136:b51f:1284	181.31.18.132
cb15:901b:901b:fb65:4024:3136:b51f:1285	181.31.18.133
cb15:901b:901b:fb65:4024:3136:b51f:1286	181.31.18.134
cb15:901b:901b:fb65:4024:3136:b51f:1287	181.31.18.135
cb15:901b:901b:fb65:4024:3136:b51f:1288	181.31.18.136
cb15:901b:901b:fb65:4024:3136:b51f:1289	181.31.18.137
cb15:901b:901b:fb65:4024:3136:b51f:128a	181.31.18.138
cb15:901b:901b:fb65:4024:3136:b51f:128b	181.31.18.139
cb15:901b:901b:fb65:4024:3136:b51f:128c	181.31.18.140
cb15:901b:901b:fb65:4024:3136:b51f:128d	181.31.18.141
cb15:901b:901b:fb65:4024:3136:b51f:128e	181.31.18.142
cb15:901b:901b:fb65:4024:3136:b51f:128f	181.31.18.143
cb15:901b:901b:fb65:4024:3136:b51f:1290	181.31.18.144
cb15:901b:901b:fb65:4024:3136:b51f:1291	181.31.18.145
cb15:901b:901b:fb65:4024:3136:b51f:1292	181.31.18.146
cb15:901b:901b:fb65:4024:3136:b51f:1293	181.31.18.147
cb15:901b:901b:fb65:4024:3136:b51f:1294	181.31.18.148
cb15:901b:901b:fb65:4024:3136:b51f:1295	181.31.18.149
cb15:901b:901b:fb65:4024:3136:b51f:1296	181.31.18.150
cb15:901b:901b:fb65:4024:3136:b51f:1297	181.31.18.151
cb15:901b:901b:fb65:4024:3136:b51f:1298	181.31.18.152
cb15:901b:901b:fb65:4024:3136:b51f:1299	181.31.18.153
cb15:901b:901b:fb65:4024:3136:b51f:129a	181.31.18.154
cb15:901b:901b:fb65:4024:3136:b51f:129b	181.31.18.155
cb15:901b:901b:fb65:4024:3136:b51f:129c	181.31.18.156
cb15:901b:901b:fb65:4024:3136:b51f:129d	181.31.18.157
cb15:901b:901b:fb65:4024:3136:b51f:129e	181.31.18.158
cb15:901b:901b:fb65:4024:3136:b51f:129f	181.31.18.159
cb15:901b:901b:fb65:4024:3136:b51f:12a0	181.31.18.160
cb15:901b:901b:fb65:4024:3136:b51f:12a1	181.31.18.161
cb15:901b:901b:fb65:4024:3136:b51f:12a2	181.31.18.162
cb15:901b:901b:fb65:4024:3136:b51f:12a3	181.31.18.163
cb15:901b:901b:fb65:4024:3136:b51f:12a4	181.31.18.164
cb15:901b:901b:fb65:4024:3136:b51f:12a5	181.31.18.165
cb15:901b:901b:fb65:4024:3136:b51f:12a6	181.31.18.166
cb15:901b:901b:fb65:4024:3136:b51f:12a7	181.31.18.167
cb15:901b:901b:fb65:4024:3136:b51f:12a8	181.31.18.168
cb15:901b:901b:fb65:4024:3136:b51f:12a9	181.31.18.169
cb15:901b:901b:fb65:4024:3136:b51f:12aa	181.31.18.170
cb15:901b:901b:fb65:4024:3136:b51f:12ab	181.31.18.171
cb15:901b:901b:fb65:4024:3136:b51f:12ac	181.31.18.172
cb15:901b:901b:fb65:4024:3136:b51f:12ad	181.31.18.173
cb15:901b:901b:fb65:4024:3136:b51f:12ae	181.31.18.174
cb15:901b:901b:fb65:4024:3136:b51f:12af	181.31.18.175
cb15:901b:901b:fb65:4024:3136:b51f:12b0	181.31.18.176
cb15:901b:901b:fb65:4024:3136:b51f:12b1	181.31.18.177
cb15:901b:901b:fb65:4024:3136:b51f:12b2	181.31.18.178
cb15:901b:901b:fb65:4024:3136:b51f:12b3	181.31.18.179
cb15:901b:901b:fb65:4024:3136:b51f:12b4	181.31.18.180

cb15:901b:901b:fb65:4024:3136:b51f:12b5	181.31.18.181
cb15:901b:901b:fb65:4024:3136:b51f:12b6	181.31.18.182
cb15:901b:901b:fb65:4024:3136:b51f:12b7	181.31.18.183
cb15:901b:901b:fb65:4024:3136:b51f:12b8	181.31.18.184
cb15:901b:901b:fb65:4024:3136:b51f:12b9	181.31.18.185
cb15:901b:901b:fb65:4024:3136:b51f:12ba	181.31.18.186
cb15:901b:901b:fb65:4024:3136:b51f:12bb	181.31.18.187
cb15:901b:901b:fb65:4024:3136:b51f:12bc	181.31.18.188
cb15:901b:901b:fb65:4024:3136:b51f:12bd	181.31.18.189
cb15:901b:901b:fb65:4024:3136:b51f:12be	181.31.18.190
cb15:901b:901b:fb65:4024:3136:b51f:12bf	181.31.18.191
cb15:901b:901b:fb65:4024:3136:b51f:12c0	181.31.18.192
cb15:901b:901b:fb65:4024:3136:b51f:12c1	181.31.18.193
cb15:901b:901b:fb65:4024:3136:b51f:12c2	181.31.18.194
cb15:901b:901b:fb65:4024:3136:b51f:12c3	181.31.18.195
cb15:901b:901b:fb65:4024:3136:b51f:12c4	181.31.18.196
cb15:901b:901b:fb65:4024:3136:b51f:12c5	181.31.18.197
cb15:901b:901b:fb65:4024:3136:b51f:12c6	181.31.18.198
cb15:901b:901b:fb65:4024:3136:b51f:12c7	181.31.18.199
cb15:901b:901b:fb65:4024:3136:b51f:12c8	181.31.18.200
cb15:901b:901b:fb65:4024:3136:b51f:12c9	181.31.18.201
cb15:901b:901b:fb65:4024:3136:b51f:12ca	181.31.18.202
cb15:901b:901b:fb65:4024:3136:b51f:12cb	181.31.18.203
cb15:901b:901b:fb65:4024:3136:b51f:12cc	181.31.18.204
cb15:901b:901b:fb65:4024:3136:b51f:12cd	181.31.18.205
cb15:901b:901b:fb65:4024:3136:b51f:12ce	181.31.18.206
cb15:901b:901b:fb65:4024:3136:b51f:12cf	181.31.18.207
cb15:901b:901b:fb65:4024:3136:b51f:12d0	181.31.18.208
cb15:901b:901b:fb65:4024:3136:b51f:12d1	181.31.18.209
cb15:901b:901b:fb65:4024:3136:b51f:12d2	181.31.18.210
cb15:901b:901b:fb65:4024:3136:b51f:12d3	181.31.18.211
cb15:901b:901b:fb65:4024:3136:b51f:12d4	181.31.18.212
cb15:901b:901b:fb65:4024:3136:b51f:12d5	181.31.18.213
cb15:901b:901b:fb65:4024:3136:b51f:12d6	181.31.18.214
cb15:901b:901b:fb65:4024:3136:b51f:12d7	181.31.18.215
cb15:901b:901b:fb65:4024:3136:b51f:12d8	181.31.18.216
cb15:901b:901b:fb65:4024:3136:b51f:12d9	181.31.18.217
cb15:901b:901b:fb65:4024:3136:b51f:12da	181.31.18.218
cb15:901b:901b:fb65:4024:3136:b51f:12db	181.31.18.219
cb15:901b:901b:fb65:4024:3136:b51f:12dc	181.31.18.220
cb15:901b:901b:fb65:4024:3136:b51f:12dd	181.31.18.221
cb15:901b:901b:fb65:4024:3136:b51f:12de	181.31.18.222
cb15:901b:901b:fb65:4024:3136:b51f:12df	181.31.18.223
cb15:901b:901b:fb65:4024:3136:b51f:12e0	181.31.18.224
cb15:901b:901b:fb65:4024:3136:b51f:12e1	181.31.18.225
cb15:901b:901b:fb65:4024:3136:b51f:12e2	181.31.18.226
cb15:901b:901b:fb65:4024:3136:b51f:12e3	181.31.18.227
cb15:901b:901b:fb65:4024:3136:b51f:12e4	181.31.18.228
cb15:901b:901b:fb65:4024:3136:b51f:12e5	181.31.18.229
cb15:901b:901b:fb65:4024:3136:b51f:12e6	181.31.18.230
cb15:901b:901b:fb65:4024:3136:b51f:12e7	181.31.18.231
cb15:901b:901b:fb65:4024:3136:b51f:12e8	181.31.18.232
cb15:901b:901b:fb65:4024:3136:b51f:12e9	181.31.18.233
cb15:901b:901b:fb65:4024:3136:b51f:12ea	181.31.18.234
cb15:901b:901b:fb65:4024:3136:b51f:12eb	181.31.18.235
cb15:901b:901b:fb65:4024:3136:b51f:12ec	181.31.18.236
cb15:901b:901b:fb65:4024:3136:b51f:12ed	181.31.18.237
cb15:901b:901b:fb65:4024:3136:b51f:12ee	181.31.18.238
cb15:901b:901b:fb65:4024:3136:b51f:12ef	181.31.18.239
cb15:901b:901b:fb65:4024:3136:b51f:12f0	181.31.18.240
cb15:901b:901b:fb65:4024:3136:b51f:12f1	181.31.18.241
cb15:901b:901b:fb65:4024:3136:b51f:12f2	181.31.18.242
cb15:901b:901b:fb65:4024:3136:b51f:12f3	181.31.18.243
cb15:901b:901b:fb65:4024:3136:b51f:12f4	181.31.18.244
cb15:901b:901b:fb65:4024:3136:b51f:12f5	181.31.18.245
cb15:901b:901b:fb65:4024:3136:b51f:12f6	181.31.18.246
cb15:901b:901b:fb65:4024:3136:b51f:12f7	181.31.18.247
cb15:901b:901b:fb65:4024:3136:b51f:12f8	181.31.18.248
cb15:901b:901b:fb65:4024:3136:b51f:12f9	181.31.18.249
cb15:901b:901b:fb65:4024:3136:b51f:12fa	181.31.18.250
cb15:901b:901b:fb65:4024:3136:b51f:12fb	181.31.18.251
cb15:901b:901b:fb65:4024:3136:b51f:12fc	181.31.18.252
cb15:901b:901b:fb65:4024:3136:b51f:12fd	181.31.18.253
cb15:901b:901b:fb65:4024:3136:b51f:12fe	181.31.18.254
cb15:901b:901b:fb65:4024:3136:b51f:12ff	181.31.18.255

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.