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:901b:8082:40de:3157:b51f:1201	181.31.18.1
b51a:901b:901b:8082:40de:3157:b51f:1202	181.31.18.2
b51a:901b:901b:8082:40de:3157:b51f:1203	181.31.18.3
b51a:901b:901b:8082:40de:3157:b51f:1204	181.31.18.4
b51a:901b:901b:8082:40de:3157:b51f:1205	181.31.18.5
b51a:901b:901b:8082:40de:3157:b51f:1206	181.31.18.6
b51a:901b:901b:8082:40de:3157:b51f:1207	181.31.18.7
b51a:901b:901b:8082:40de:3157:b51f:1208	181.31.18.8
b51a:901b:901b:8082:40de:3157:b51f:1209	181.31.18.9
b51a:901b:901b:8082:40de:3157:b51f:120a	181.31.18.10
b51a:901b:901b:8082:40de:3157:b51f:120b	181.31.18.11
b51a:901b:901b:8082:40de:3157:b51f:120c	181.31.18.12
b51a:901b:901b:8082:40de:3157:b51f:120d	181.31.18.13
b51a:901b:901b:8082:40de:3157:b51f:120e	181.31.18.14
b51a:901b:901b:8082:40de:3157:b51f:120f	181.31.18.15
b51a:901b:901b:8082:40de:3157:b51f:1210	181.31.18.16
b51a:901b:901b:8082:40de:3157:b51f:1211	181.31.18.17
b51a:901b:901b:8082:40de:3157:b51f:1212	181.31.18.18
b51a:901b:901b:8082:40de:3157:b51f:1213	181.31.18.19
b51a:901b:901b:8082:40de:3157:b51f:1214	181.31.18.20
b51a:901b:901b:8082:40de:3157:b51f:1215	181.31.18.21
b51a:901b:901b:8082:40de:3157:b51f:1216	181.31.18.22
b51a:901b:901b:8082:40de:3157:b51f:1217	181.31.18.23
b51a:901b:901b:8082:40de:3157:b51f:1218	181.31.18.24
b51a:901b:901b:8082:40de:3157:b51f:1219	181.31.18.25
b51a:901b:901b:8082:40de:3157:b51f:121a	181.31.18.26
b51a:901b:901b:8082:40de:3157:b51f:121b	181.31.18.27
b51a:901b:901b:8082:40de:3157:b51f:121c	181.31.18.28
b51a:901b:901b:8082:40de:3157:b51f:121d	181.31.18.29
b51a:901b:901b:8082:40de:3157:b51f:121e	181.31.18.30
b51a:901b:901b:8082:40de:3157:b51f:121f	181.31.18.31
b51a:901b:901b:8082:40de:3157:b51f:1220	181.31.18.32
b51a:901b:901b:8082:40de:3157:b51f:1221	181.31.18.33
b51a:901b:901b:8082:40de:3157:b51f:1222	181.31.18.34
b51a:901b:901b:8082:40de:3157:b51f:1223	181.31.18.35
b51a:901b:901b:8082:40de:3157:b51f:1224	181.31.18.36
b51a:901b:901b:8082:40de:3157:b51f:1225	181.31.18.37
b51a:901b:901b:8082:40de:3157:b51f:1226	181.31.18.38
b51a:901b:901b:8082:40de:3157:b51f:1227	181.31.18.39
b51a:901b:901b:8082:40de:3157:b51f:1228	181.31.18.40
b51a:901b:901b:8082:40de:3157:b51f:1229	181.31.18.41
b51a:901b:901b:8082:40de:3157:b51f:122a	181.31.18.42
b51a:901b:901b:8082:40de:3157:b51f:122b	181.31.18.43
b51a:901b:901b:8082:40de:3157:b51f:122c	181.31.18.44
b51a:901b:901b:8082:40de:3157:b51f:122d	181.31.18.45
b51a:901b:901b:8082:40de:3157:b51f:122e	181.31.18.46
b51a:901b:901b:8082:40de:3157:b51f:122f	181.31.18.47
b51a:901b:901b:8082:40de:3157:b51f:1230	181.31.18.48
b51a:901b:901b:8082:40de:3157:b51f:1231	181.31.18.49
b51a:901b:901b:8082:40de:3157:b51f:1232	181.31.18.50
b51a:901b:901b:8082:40de:3157:b51f:1233	181.31.18.51
b51a:901b:901b:8082:40de:3157:b51f:1234	181.31.18.52
b51a:901b:901b:8082:40de:3157:b51f:1235	181.31.18.53
b51a:901b:901b:8082:40de:3157:b51f:1236	181.31.18.54
b51a:901b:901b:8082:40de:3157:b51f:1237	181.31.18.55
b51a:901b:901b:8082:40de:3157:b51f:1238	181.31.18.56
b51a:901b:901b:8082:40de:3157:b51f:1239	181.31.18.57
b51a:901b:901b:8082:40de:3157:b51f:123a	181.31.18.58
b51a:901b:901b:8082:40de:3157:b51f:123b	181.31.18.59
b51a:901b:901b:8082:40de:3157:b51f:123c	181.31.18.60

b51a:901b:901b:8082:40de:3157:b51f:123d	181.31.18.61
b51a:901b:901b:8082:40de:3157:b51f:123e	181.31.18.62
b51a:901b:901b:8082:40de:3157:b51f:123f	181.31.18.63
b51a:901b:901b:8082:40de:3157:b51f:1240	181.31.18.64
b51a:901b:901b:8082:40de:3157:b51f:1241	181.31.18.65
b51a:901b:901b:8082:40de:3157:b51f:1242	181.31.18.66
b51a:901b:901b:8082:40de:3157:b51f:1243	181.31.18.67
b51a:901b:901b:8082:40de:3157:b51f:1244	181.31.18.68
b51a:901b:901b:8082:40de:3157:b51f:1245	181.31.18.69
b51a:901b:901b:8082:40de:3157:b51f:1246	181.31.18.70
b51a:901b:901b:8082:40de:3157:b51f:1247	181.31.18.71
b51a:901b:901b:8082:40de:3157:b51f:1248	181.31.18.72
b51a:901b:901b:8082:40de:3157:b51f:1249	181.31.18.73
b51a:901b:901b:8082:40de:3157:b51f:124a	181.31.18.74
b51a:901b:901b:8082:40de:3157:b51f:124b	181.31.18.75
b51a:901b:901b:8082:40de:3157:b51f:124c	181.31.18.76
b51a:901b:901b:8082:40de:3157:b51f:124d	181.31.18.77
b51a:901b:901b:8082:40de:3157:b51f:124e	181.31.18.78
b51a:901b:901b:8082:40de:3157:b51f:124f	181.31.18.79
b51a:901b:901b:8082:40de:3157:b51f:1250	181.31.18.80
b51a:901b:901b:8082:40de:3157:b51f:1251	181.31.18.81
b51a:901b:901b:8082:40de:3157:b51f:1252	181.31.18.82
b51a:901b:901b:8082:40de:3157:b51f:1253	181.31.18.83
b51a:901b:901b:8082:40de:3157:b51f:1254	181.31.18.84
b51a:901b:901b:8082:40de:3157:b51f:1255	181.31.18.85
b51a:901b:901b:8082:40de:3157:b51f:1256	181.31.18.86
b51a:901b:901b:8082:40de:3157:b51f:1257	181.31.18.87
b51a:901b:901b:8082:40de:3157:b51f:1258	181.31.18.88
b51a:901b:901b:8082:40de:3157:b51f:1259	181.31.18.89
b51a:901b:901b:8082:40de:3157:b51f:125a	181.31.18.90
b51a:901b:901b:8082:40de:3157:b51f:125b	181.31.18.91
b51a:901b:901b:8082:40de:3157:b51f:125c	181.31.18.92
b51a:901b:901b:8082:40de:3157:b51f:125d	181.31.18.93
b51a:901b:901b:8082:40de:3157:b51f:125e	181.31.18.94
b51a:901b:901b:8082:40de:3157:b51f:125f	181.31.18.95
b51a:901b:901b:8082:40de:3157:b51f:1260	181.31.18.96
b51a:901b:901b:8082:40de:3157:b51f:1261	181.31.18.97
b51a:901b:901b:8082:40de:3157:b51f:1262	181.31.18.98
b51a:901b:901b:8082:40de:3157:b51f:1263	181.31.18.99
b51a:901b:901b:8082:40de:3157:b51f:1264	181.31.18.100
b51a:901b:901b:8082:40de:3157:b51f:1265	181.31.18.101
b51a:901b:901b:8082:40de:3157:b51f:1266	181.31.18.102
b51a:901b:901b:8082:40de:3157:b51f:1267	181.31.18.103
b51a:901b:901b:8082:40de:3157:b51f:1268	181.31.18.104
b51a:901b:901b:8082:40de:3157:b51f:1269	181.31.18.105
b51a:901b:901b:8082:40de:3157:b51f:126a	181.31.18.106
b51a:901b:901b:8082:40de:3157:b51f:126b	181.31.18.107
b51a:901b:901b:8082:40de:3157:b51f:126c	181.31.18.108
b51a:901b:901b:8082:40de:3157:b51f:126d	181.31.18.109
b51a:901b:901b:8082:40de:3157:b51f:126e	181.31.18.110
b51a:901b:901b:8082:40de:3157:b51f:126f	181.31.18.111
b51a:901b:901b:8082:40de:3157:b51f:1270	181.31.18.112
b51a:901b:901b:8082:40de:3157:b51f:1271	181.31.18.113
b51a:901b:901b:8082:40de:3157:b51f:1272	181.31.18.114
b51a:901b:901b:8082:40de:3157:b51f:1273	181.31.18.115
b51a:901b:901b:8082:40de:3157:b51f:1274	181.31.18.116
b51a:901b:901b:8082:40de:3157:b51f:1275	181.31.18.117
b51a:901b:901b:8082:40de:3157:b51f:1276	181.31.18.118
b51a:901b:901b:8082:40de:3157:b51f:1277	181.31.18.119
b51a:901b:901b:8082:40de:3157:b51f:1278	181.31.18.120

b51a:901b:901b:8082:40de:3157:b51f:1279	181.31.18.121
b51a:901b:901b:8082:40de:3157:b51f:127a	181.31.18.122
b51a:901b:901b:8082:40de:3157:b51f:127b	181.31.18.123
b51a:901b:901b:8082:40de:3157:b51f:127c	181.31.18.124
b51a:901b:901b:8082:40de:3157:b51f:127d	181.31.18.125
b51a:901b:901b:8082:40de:3157:b51f:127e	181.31.18.126
b51a:901b:901b:8082:40de:3157:b51f:127f	181.31.18.127
b51a:901b:901b:8082:40de:3157:b51f:1280	181.31.18.128
b51a:901b:901b:8082:40de:3157:b51f:1281	181.31.18.129
b51a:901b:901b:8082:40de:3157:b51f:1282	181.31.18.130
b51a:901b:901b:8082:40de:3157:b51f:1283	181.31.18.131
b51a:901b:901b:8082:40de:3157:b51f:1284	181.31.18.132
b51a:901b:901b:8082:40de:3157:b51f:1285	181.31.18.133
b51a:901b:901b:8082:40de:3157:b51f:1286	181.31.18.134
b51a:901b:901b:8082:40de:3157:b51f:1287	181.31.18.135
b51a:901b:901b:8082:40de:3157:b51f:1288	181.31.18.136
b51a:901b:901b:8082:40de:3157:b51f:1289	181.31.18.137
b51a:901b:901b:8082:40de:3157:b51f:128a	181.31.18.138
b51a:901b:901b:8082:40de:3157:b51f:128b	181.31.18.139
b51a:901b:901b:8082:40de:3157:b51f:128c	181.31.18.140
b51a:901b:901b:8082:40de:3157:b51f:128d	181.31.18.141
b51a:901b:901b:8082:40de:3157:b51f:128e	181.31.18.142
b51a:901b:901b:8082:40de:3157:b51f:128f	181.31.18.143
b51a:901b:901b:8082:40de:3157:b51f:1290	181.31.18.144
b51a:901b:901b:8082:40de:3157:b51f:1291	181.31.18.145
b51a:901b:901b:8082:40de:3157:b51f:1292	181.31.18.146
b51a:901b:901b:8082:40de:3157:b51f:1293	181.31.18.147
b51a:901b:901b:8082:40de:3157:b51f:1294	181.31.18.148
b51a:901b:901b:8082:40de:3157:b51f:1295	181.31.18.149
b51a:901b:901b:8082:40de:3157:b51f:1296	181.31.18.150
b51a:901b:901b:8082:40de:3157:b51f:1297	181.31.18.151
b51a:901b:901b:8082:40de:3157:b51f:1298	181.31.18.152
b51a:901b:901b:8082:40de:3157:b51f:1299	181.31.18.153
b51a:901b:901b:8082:40de:3157:b51f:129a	181.31.18.154
b51a:901b:901b:8082:40de:3157:b51f:129b	181.31.18.155
b51a:901b:901b:8082:40de:3157:b51f:129c	181.31.18.156
b51a:901b:901b:8082:40de:3157:b51f:129d	181.31.18.157
b51a:901b:901b:8082:40de:3157:b51f:129e	181.31.18.158
b51a:901b:901b:8082:40de:3157:b51f:129f	181.31.18.159
b51a:901b:901b:8082:40de:3157:b51f:12a0	181.31.18.160
b51a:901b:901b:8082:40de:3157:b51f:12a1	181.31.18.161
b51a:901b:901b:8082:40de:3157:b51f:12a2	181.31.18.162
b51a:901b:901b:8082:40de:3157:b51f:12a3	181.31.18.163
b51a:901b:901b:8082:40de:3157:b51f:12a4	181.31.18.164
b51a:901b:901b:8082:40de:3157:b51f:12a5	181.31.18.165
b51a:901b:901b:8082:40de:3157:b51f:12a6	181.31.18.166
b51a:901b:901b:8082:40de:3157:b51f:12a7	181.31.18.167
b51a:901b:901b:8082:40de:3157:b51f:12a8	181.31.18.168
b51a:901b:901b:8082:40de:3157:b51f:12a9	181.31.18.169
b51a:901b:901b:8082:40de:3157:b51f:12aa	181.31.18.170
b51a:901b:901b:8082:40de:3157:b51f:12ab	181.31.18.171
b51a:901b:901b:8082:40de:3157:b51f:12ac	181.31.18.172
b51a:901b:901b:8082:40de:3157:b51f:12ad	181.31.18.173
b51a:901b:901b:8082:40de:3157:b51f:12ae	181.31.18.174
b51a:901b:901b:8082:40de:3157:b51f:12af	181.31.18.175
b51a:901b:901b:8082:40de:3157:b51f:12b0	181.31.18.176
b51a:901b:901b:8082:40de:3157:b51f:12b1	181.31.18.177
b51a:901b:901b:8082:40de:3157:b51f:12b2	181.31.18.178
b51a:901b:901b:8082:40de:3157:b51f:12b3	181.31.18.179
b51a:901b:901b:8082:40de:3157:b51f:12b4	181.31.18.180

b51a:901b:901b:8082:40de:3157:b51f:12b5	181.31.18.181
b51a:901b:901b:8082:40de:3157:b51f:12b6	181.31.18.182
b51a:901b:901b:8082:40de:3157:b51f:12b7	181.31.18.183
b51a:901b:901b:8082:40de:3157:b51f:12b8	181.31.18.184
b51a:901b:901b:8082:40de:3157:b51f:12b9	181.31.18.185
b51a:901b:901b:8082:40de:3157:b51f:12ba	181.31.18.186
b51a:901b:901b:8082:40de:3157:b51f:12bb	181.31.18.187
b51a:901b:901b:8082:40de:3157:b51f:12bc	181.31.18.188
b51a:901b:901b:8082:40de:3157:b51f:12bd	181.31.18.189
b51a:901b:901b:8082:40de:3157:b51f:12be	181.31.18.190
b51a:901b:901b:8082:40de:3157:b51f:12bf	181.31.18.191
b51a:901b:901b:8082:40de:3157:b51f:12c0	181.31.18.192
b51a:901b:901b:8082:40de:3157:b51f:12c1	181.31.18.193
b51a:901b:901b:8082:40de:3157:b51f:12c2	181.31.18.194
b51a:901b:901b:8082:40de:3157:b51f:12c3	181.31.18.195
b51a:901b:901b:8082:40de:3157:b51f:12c4	181.31.18.196
b51a:901b:901b:8082:40de:3157:b51f:12c5	181.31.18.197
b51a:901b:901b:8082:40de:3157:b51f:12c6	181.31.18.198
b51a:901b:901b:8082:40de:3157:b51f:12c7	181.31.18.199
b51a:901b:901b:8082:40de:3157:b51f:12c8	181.31.18.200
b51a:901b:901b:8082:40de:3157:b51f:12c9	181.31.18.201
b51a:901b:901b:8082:40de:3157:b51f:12ca	181.31.18.202
b51a:901b:901b:8082:40de:3157:b51f:12cb	181.31.18.203
b51a:901b:901b:8082:40de:3157:b51f:12cc	181.31.18.204
b51a:901b:901b:8082:40de:3157:b51f:12cd	181.31.18.205
b51a:901b:901b:8082:40de:3157:b51f:12ce	181.31.18.206
b51a:901b:901b:8082:40de:3157:b51f:12cf	181.31.18.207
b51a:901b:901b:8082:40de:3157:b51f:12d0	181.31.18.208
b51a:901b:901b:8082:40de:3157:b51f:12d1	181.31.18.209
b51a:901b:901b:8082:40de:3157:b51f:12d2	181.31.18.210
b51a:901b:901b:8082:40de:3157:b51f:12d3	181.31.18.211
b51a:901b:901b:8082:40de:3157:b51f:12d4	181.31.18.212
b51a:901b:901b:8082:40de:3157:b51f:12d5	181.31.18.213
b51a:901b:901b:8082:40de:3157:b51f:12d6	181.31.18.214
b51a:901b:901b:8082:40de:3157:b51f:12d7	181.31.18.215
b51a:901b:901b:8082:40de:3157:b51f:12d8	181.31.18.216
b51a:901b:901b:8082:40de:3157:b51f:12d9	181.31.18.217
b51a:901b:901b:8082:40de:3157:b51f:12da	181.31.18.218
b51a:901b:901b:8082:40de:3157:b51f:12db	181.31.18.219
b51a:901b:901b:8082:40de:3157:b51f:12dc	181.31.18.220
b51a:901b:901b:8082:40de:3157:b51f:12dd	181.31.18.221
b51a:901b:901b:8082:40de:3157:b51f:12de	181.31.18.222
b51a:901b:901b:8082:40de:3157:b51f:12df	181.31.18.223
b51a:901b:901b:8082:40de:3157:b51f:12e0	181.31.18.224
b51a:901b:901b:8082:40de:3157:b51f:12e1	181.31.18.225
b51a:901b:901b:8082:40de:3157:b51f:12e2	181.31.18.226
b51a:901b:901b:8082:40de:3157:b51f:12e3	181.31.18.227
b51a:901b:901b:8082:40de:3157:b51f:12e4	181.31.18.228
b51a:901b:901b:8082:40de:3157:b51f:12e5	181.31.18.229
b51a:901b:901b:8082:40de:3157:b51f:12e6	181.31.18.230
b51a:901b:901b:8082:40de:3157:b51f:12e7	181.31.18.231
b51a:901b:901b:8082:40de:3157:b51f:12e8	181.31.18.232
b51a:901b:901b:8082:40de:3157:b51f:12e9	181.31.18.233
b51a:901b:901b:8082:40de:3157:b51f:12ea	181.31.18.234
b51a:901b:901b:8082:40de:3157:b51f:12eb	181.31.18.235
b51a:901b:901b:8082:40de:3157:b51f:12ec	181.31.18.236
b51a:901b:901b:8082:40de:3157:b51f:12ed	181.31.18.237
b51a:901b:901b:8082:40de:3157:b51f:12ee	181.31.18.238
b51a:901b:901b:8082:40de:3157:b51f:12ef	181.31.18.239
b51a:901b:901b:8082:40de:3157:b51f:12f0	181.31.18.240
b51a:901b:901b:8082:40de:3157:b51f:12f1	181.31.18.241
b51a:901b:901b:8082:40de:3157:b51f:12f2	181.31.18.242
b51a:901b:901b:8082:40de:3157:b51f:12f3	181.31.18.243
b51a:901b:901b:8082:40de:3157:b51f:12f4	181.31.18.244
b51a:901b:901b:8082:40de:3157:b51f:12f5	181.31.18.245
b51a:901b:901b:8082:40de:3157:b51f:12f6	181.31.18.246
b51a:901b:901b:8082:40de:3157:b51f:12f7	181.31.18.247
b51a:901b:901b:8082:40de:3157:b51f:12f8	181.31.18.248
b51a:901b:901b:8082:40de:3157:b51f:12f9	181.31.18.249
b51a:901b:901b:8082:40de:3157:b51f:12fa	181.31.18.250
b51a:901b:901b:8082:40de:3157:b51f:12fb	181.31.18.251
b51a:901b:901b:8082:40de:3157:b51f:12fc	181.31.18.252
b51a:901b:901b:8082:40de:3157:b51f:12fd	181.31.18.253
b51a:901b:901b:8082:40de:3157:b51f:12fe	181.31.18.254
b51a:901b:901b:8082:40de:3157: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.