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:1501	181.31.21.1
cb15:901b:901b:fb65:4024:3136:b51f:1502	181.31.21.2
cb15:901b:901b:fb65:4024:3136:b51f:1503	181.31.21.3
cb15:901b:901b:fb65:4024:3136:b51f:1504	181.31.21.4
cb15:901b:901b:fb65:4024:3136:b51f:1505	181.31.21.5
cb15:901b:901b:fb65:4024:3136:b51f:1506	181.31.21.6
cb15:901b:901b:fb65:4024:3136:b51f:1507	181.31.21.7
cb15:901b:901b:fb65:4024:3136:b51f:1508	181.31.21.8
cb15:901b:901b:fb65:4024:3136:b51f:1509	181.31.21.9
cb15:901b:901b:fb65:4024:3136:b51f:150a	181.31.21.10
cb15:901b:901b:fb65:4024:3136:b51f:150b	181.31.21.11
cb15:901b:901b:fb65:4024:3136:b51f:150c	181.31.21.12
cb15:901b:901b:fb65:4024:3136:b51f:150d	181.31.21.13
cb15:901b:901b:fb65:4024:3136:b51f:150e	181.31.21.14
cb15:901b:901b:fb65:4024:3136:b51f:150f	181.31.21.15
cb15:901b:901b:fb65:4024:3136:b51f:1510	181.31.21.16
cb15:901b:901b:fb65:4024:3136:b51f:1511	181.31.21.17
cb15:901b:901b:fb65:4024:3136:b51f:1512	181.31.21.18
cb15:901b:901b:fb65:4024:3136:b51f:1513	181.31.21.19
cb15:901b:901b:fb65:4024:3136:b51f:1514	181.31.21.20
cb15:901b:901b:fb65:4024:3136:b51f:1515	181.31.21.21
cb15:901b:901b:fb65:4024:3136:b51f:1516	181.31.21.22
cb15:901b:901b:fb65:4024:3136:b51f:1517	181.31.21.23
cb15:901b:901b:fb65:4024:3136:b51f:1518	181.31.21.24
cb15:901b:901b:fb65:4024:3136:b51f:1519	181.31.21.25
cb15:901b:901b:fb65:4024:3136:b51f:151a	181.31.21.26
cb15:901b:901b:fb65:4024:3136:b51f:151b	181.31.21.27
cb15:901b:901b:fb65:4024:3136:b51f:151c	181.31.21.28
cb15:901b:901b:fb65:4024:3136:b51f:151d	181.31.21.29
cb15:901b:901b:fb65:4024:3136:b51f:151e	181.31.21.30
cb15:901b:901b:fb65:4024:3136:b51f:151f	181.31.21.31
cb15:901b:901b:fb65:4024:3136:b51f:1520	181.31.21.32
cb15:901b:901b:fb65:4024:3136:b51f:1521	181.31.21.33
cb15:901b:901b:fb65:4024:3136:b51f:1522	181.31.21.34
cb15:901b:901b:fb65:4024:3136:b51f:1523	181.31.21.35
cb15:901b:901b:fb65:4024:3136:b51f:1524	181.31.21.36
cb15:901b:901b:fb65:4024:3136:b51f:1525	181.31.21.37
cb15:901b:901b:fb65:4024:3136:b51f:1526	181.31.21.38
cb15:901b:901b:fb65:4024:3136:b51f:1527	181.31.21.39
cb15:901b:901b:fb65:4024:3136:b51f:1528	181.31.21.40
cb15:901b:901b:fb65:4024:3136:b51f:1529	181.31.21.41
cb15:901b:901b:fb65:4024:3136:b51f:152a	181.31.21.42
cb15:901b:901b:fb65:4024:3136:b51f:152b	181.31.21.43
cb15:901b:901b:fb65:4024:3136:b51f:152c	181.31.21.44
cb15:901b:901b:fb65:4024:3136:b51f:152d	181.31.21.45
cb15:901b:901b:fb65:4024:3136:b51f:152e	181.31.21.46
cb15:901b:901b:fb65:4024:3136:b51f:152f	181.31.21.47
cb15:901b:901b:fb65:4024:3136:b51f:1530	181.31.21.48
cb15:901b:901b:fb65:4024:3136:b51f:1531	181.31.21.49
cb15:901b:901b:fb65:4024:3136:b51f:1532	181.31.21.50
cb15:901b:901b:fb65:4024:3136:b51f:1533	181.31.21.51
cb15:901b:901b:fb65:4024:3136:b51f:1534	181.31.21.52
cb15:901b:901b:fb65:4024:3136:b51f:1535	181.31.21.53
cb15:901b:901b:fb65:4024:3136:b51f:1536	181.31.21.54
cb15:901b:901b:fb65:4024:3136:b51f:1537	181.31.21.55
cb15:901b:901b:fb65:4024:3136:b51f:1538	181.31.21.56
cb15:901b:901b:fb65:4024:3136:b51f:1539	181.31.21.57
cb15:901b:901b:fb65:4024:3136:b51f:153a	181.31.21.58
cb15:901b:901b:fb65:4024:3136:b51f:153b	181.31.21.59
cb15:901b:901b:fb65:4024:3136:b51f:153c	181.31.21.60

cb15:901b:901b:fb65:4024:3136:b51f:153d	181.31.21.61
cb15:901b:901b:fb65:4024:3136:b51f:153e	181.31.21.62
cb15:901b:901b:fb65:4024:3136:b51f:153f	181.31.21.63
cb15:901b:901b:fb65:4024:3136:b51f:1540	181.31.21.64
cb15:901b:901b:fb65:4024:3136:b51f:1541	181.31.21.65
cb15:901b:901b:fb65:4024:3136:b51f:1542	181.31.21.66
cb15:901b:901b:fb65:4024:3136:b51f:1543	181.31.21.67
cb15:901b:901b:fb65:4024:3136:b51f:1544	181.31.21.68
cb15:901b:901b:fb65:4024:3136:b51f:1545	181.31.21.69
cb15:901b:901b:fb65:4024:3136:b51f:1546	181.31.21.70
cb15:901b:901b:fb65:4024:3136:b51f:1547	181.31.21.71
cb15:901b:901b:fb65:4024:3136:b51f:1548	181.31.21.72
cb15:901b:901b:fb65:4024:3136:b51f:1549	181.31.21.73
cb15:901b:901b:fb65:4024:3136:b51f:154a	181.31.21.74
cb15:901b:901b:fb65:4024:3136:b51f:154b	181.31.21.75
cb15:901b:901b:fb65:4024:3136:b51f:154c	181.31.21.76
cb15:901b:901b:fb65:4024:3136:b51f:154d	181.31.21.77
cb15:901b:901b:fb65:4024:3136:b51f:154e	181.31.21.78
cb15:901b:901b:fb65:4024:3136:b51f:154f	181.31.21.79
cb15:901b:901b:fb65:4024:3136:b51f:1550	181.31.21.80
cb15:901b:901b:fb65:4024:3136:b51f:1551	181.31.21.81
cb15:901b:901b:fb65:4024:3136:b51f:1552	181.31.21.82
cb15:901b:901b:fb65:4024:3136:b51f:1553	181.31.21.83
cb15:901b:901b:fb65:4024:3136:b51f:1554	181.31.21.84
cb15:901b:901b:fb65:4024:3136:b51f:1555	181.31.21.85
cb15:901b:901b:fb65:4024:3136:b51f:1556	181.31.21.86
cb15:901b:901b:fb65:4024:3136:b51f:1557	181.31.21.87
cb15:901b:901b:fb65:4024:3136:b51f:1558	181.31.21.88
cb15:901b:901b:fb65:4024:3136:b51f:1559	181.31.21.89
cb15:901b:901b:fb65:4024:3136:b51f:155a	181.31.21.90
cb15:901b:901b:fb65:4024:3136:b51f:155b	181.31.21.91
cb15:901b:901b:fb65:4024:3136:b51f:155c	181.31.21.92
cb15:901b:901b:fb65:4024:3136:b51f:155d	181.31.21.93
cb15:901b:901b:fb65:4024:3136:b51f:155e	181.31.21.94
cb15:901b:901b:fb65:4024:3136:b51f:155f	181.31.21.95
cb15:901b:901b:fb65:4024:3136:b51f:1560	181.31.21.96
cb15:901b:901b:fb65:4024:3136:b51f:1561	181.31.21.97
cb15:901b:901b:fb65:4024:3136:b51f:1562	181.31.21.98
cb15:901b:901b:fb65:4024:3136:b51f:1563	181.31.21.99
cb15:901b:901b:fb65:4024:3136:b51f:1564	181.31.21.100
cb15:901b:901b:fb65:4024:3136:b51f:1565	181.31.21.101
cb15:901b:901b:fb65:4024:3136:b51f:1566	181.31.21.102
cb15:901b:901b:fb65:4024:3136:b51f:1567	181.31.21.103
cb15:901b:901b:fb65:4024:3136:b51f:1568	181.31.21.104
cb15:901b:901b:fb65:4024:3136:b51f:1569	181.31.21.105
cb15:901b:901b:fb65:4024:3136:b51f:156a	181.31.21.106
cb15:901b:901b:fb65:4024:3136:b51f:156b	181.31.21.107
cb15:901b:901b:fb65:4024:3136:b51f:156c	181.31.21.108
cb15:901b:901b:fb65:4024:3136:b51f:156d	181.31.21.109
cb15:901b:901b:fb65:4024:3136:b51f:156e	181.31.21.110
cb15:901b:901b:fb65:4024:3136:b51f:156f	181.31.21.111
cb15:901b:901b:fb65:4024:3136:b51f:1570	181.31.21.112
cb15:901b:901b:fb65:4024:3136:b51f:1571	181.31.21.113
cb15:901b:901b:fb65:4024:3136:b51f:1572	181.31.21.114
cb15:901b:901b:fb65:4024:3136:b51f:1573	181.31.21.115
cb15:901b:901b:fb65:4024:3136:b51f:1574	181.31.21.116
cb15:901b:901b:fb65:4024:3136:b51f:1575	181.31.21.117
cb15:901b:901b:fb65:4024:3136:b51f:1576	181.31.21.118
cb15:901b:901b:fb65:4024:3136:b51f:1577	181.31.21.119
cb15:901b:901b:fb65:4024:3136:b51f:1578	181.31.21.120

cb15:901b:901b:fb65:4024:3136:b51f:1579	181.31.21.121
cb15:901b:901b:fb65:4024:3136:b51f:157a	181.31.21.122
cb15:901b:901b:fb65:4024:3136:b51f:157b	181.31.21.123
cb15:901b:901b:fb65:4024:3136:b51f:157c	181.31.21.124
cb15:901b:901b:fb65:4024:3136:b51f:157d	181.31.21.125
cb15:901b:901b:fb65:4024:3136:b51f:157e	181.31.21.126
cb15:901b:901b:fb65:4024:3136:b51f:157f	181.31.21.127
cb15:901b:901b:fb65:4024:3136:b51f:1580	181.31.21.128
cb15:901b:901b:fb65:4024:3136:b51f:1581	181.31.21.129
cb15:901b:901b:fb65:4024:3136:b51f:1582	181.31.21.130
cb15:901b:901b:fb65:4024:3136:b51f:1583	181.31.21.131
cb15:901b:901b:fb65:4024:3136:b51f:1584	181.31.21.132
cb15:901b:901b:fb65:4024:3136:b51f:1585	181.31.21.133
cb15:901b:901b:fb65:4024:3136:b51f:1586	181.31.21.134
cb15:901b:901b:fb65:4024:3136:b51f:1587	181.31.21.135
cb15:901b:901b:fb65:4024:3136:b51f:1588	181.31.21.136
cb15:901b:901b:fb65:4024:3136:b51f:1589	181.31.21.137
cb15:901b:901b:fb65:4024:3136:b51f:158a	181.31.21.138
cb15:901b:901b:fb65:4024:3136:b51f:158b	181.31.21.139
cb15:901b:901b:fb65:4024:3136:b51f:158c	181.31.21.140
cb15:901b:901b:fb65:4024:3136:b51f:158d	181.31.21.141
cb15:901b:901b:fb65:4024:3136:b51f:158e	181.31.21.142
cb15:901b:901b:fb65:4024:3136:b51f:158f	181.31.21.143
cb15:901b:901b:fb65:4024:3136:b51f:1590	181.31.21.144
cb15:901b:901b:fb65:4024:3136:b51f:1591	181.31.21.145
cb15:901b:901b:fb65:4024:3136:b51f:1592	181.31.21.146
cb15:901b:901b:fb65:4024:3136:b51f:1593	181.31.21.147
cb15:901b:901b:fb65:4024:3136:b51f:1594	181.31.21.148
cb15:901b:901b:fb65:4024:3136:b51f:1595	181.31.21.149
cb15:901b:901b:fb65:4024:3136:b51f:1596	181.31.21.150
cb15:901b:901b:fb65:4024:3136:b51f:1597	181.31.21.151
cb15:901b:901b:fb65:4024:3136:b51f:1598	181.31.21.152
cb15:901b:901b:fb65:4024:3136:b51f:1599	181.31.21.153
cb15:901b:901b:fb65:4024:3136:b51f:159a	181.31.21.154
cb15:901b:901b:fb65:4024:3136:b51f:159b	181.31.21.155
cb15:901b:901b:fb65:4024:3136:b51f:159c	181.31.21.156
cb15:901b:901b:fb65:4024:3136:b51f:159d	181.31.21.157
cb15:901b:901b:fb65:4024:3136:b51f:159e	181.31.21.158
cb15:901b:901b:fb65:4024:3136:b51f:159f	181.31.21.159
cb15:901b:901b:fb65:4024:3136:b51f:15a0	181.31.21.160
cb15:901b:901b:fb65:4024:3136:b51f:15a1	181.31.21.161
cb15:901b:901b:fb65:4024:3136:b51f:15a2	181.31.21.162
cb15:901b:901b:fb65:4024:3136:b51f:15a3	181.31.21.163
cb15:901b:901b:fb65:4024:3136:b51f:15a4	181.31.21.164
cb15:901b:901b:fb65:4024:3136:b51f:15a5	181.31.21.165
cb15:901b:901b:fb65:4024:3136:b51f:15a6	181.31.21.166
cb15:901b:901b:fb65:4024:3136:b51f:15a7	181.31.21.167
cb15:901b:901b:fb65:4024:3136:b51f:15a8	181.31.21.168
cb15:901b:901b:fb65:4024:3136:b51f:15a9	181.31.21.169
cb15:901b:901b:fb65:4024:3136:b51f:15aa	181.31.21.170
cb15:901b:901b:fb65:4024:3136:b51f:15ab	181.31.21.171
cb15:901b:901b:fb65:4024:3136:b51f:15ac	181.31.21.172
cb15:901b:901b:fb65:4024:3136:b51f:15ad	181.31.21.173
cb15:901b:901b:fb65:4024:3136:b51f:15ae	181.31.21.174
cb15:901b:901b:fb65:4024:3136:b51f:15af	181.31.21.175
cb15:901b:901b:fb65:4024:3136:b51f:15b0	181.31.21.176
cb15:901b:901b:fb65:4024:3136:b51f:15b1	181.31.21.177
cb15:901b:901b:fb65:4024:3136:b51f:15b2	181.31.21.178
cb15:901b:901b:fb65:4024:3136:b51f:15b3	181.31.21.179
cb15:901b:901b:fb65:4024:3136:b51f:15b4	181.31.21.180

cb15:901b:901b:fb65:4024:3136:b51f:15b5	181.31.21.181
cb15:901b:901b:fb65:4024:3136:b51f:15b6	181.31.21.182
cb15:901b:901b:fb65:4024:3136:b51f:15b7	181.31.21.183
cb15:901b:901b:fb65:4024:3136:b51f:15b8	181.31.21.184
cb15:901b:901b:fb65:4024:3136:b51f:15b9	181.31.21.185
cb15:901b:901b:fb65:4024:3136:b51f:15ba	181.31.21.186
cb15:901b:901b:fb65:4024:3136:b51f:15bb	181.31.21.187
cb15:901b:901b:fb65:4024:3136:b51f:15bc	181.31.21.188
cb15:901b:901b:fb65:4024:3136:b51f:15bd	181.31.21.189
cb15:901b:901b:fb65:4024:3136:b51f:15be	181.31.21.190
cb15:901b:901b:fb65:4024:3136:b51f:15bf	181.31.21.191
cb15:901b:901b:fb65:4024:3136:b51f:15c0	181.31.21.192
cb15:901b:901b:fb65:4024:3136:b51f:15c1	181.31.21.193
cb15:901b:901b:fb65:4024:3136:b51f:15c2	181.31.21.194
cb15:901b:901b:fb65:4024:3136:b51f:15c3	181.31.21.195
cb15:901b:901b:fb65:4024:3136:b51f:15c4	181.31.21.196
cb15:901b:901b:fb65:4024:3136:b51f:15c5	181.31.21.197
cb15:901b:901b:fb65:4024:3136:b51f:15c6	181.31.21.198
cb15:901b:901b:fb65:4024:3136:b51f:15c7	181.31.21.199
cb15:901b:901b:fb65:4024:3136:b51f:15c8	181.31.21.200
cb15:901b:901b:fb65:4024:3136:b51f:15c9	181.31.21.201
cb15:901b:901b:fb65:4024:3136:b51f:15ca	181.31.21.202
cb15:901b:901b:fb65:4024:3136:b51f:15cb	181.31.21.203
cb15:901b:901b:fb65:4024:3136:b51f:15cc	181.31.21.204
cb15:901b:901b:fb65:4024:3136:b51f:15cd	181.31.21.205
cb15:901b:901b:fb65:4024:3136:b51f:15ce	181.31.21.206
cb15:901b:901b:fb65:4024:3136:b51f:15cf	181.31.21.207
cb15:901b:901b:fb65:4024:3136:b51f:15d0	181.31.21.208
cb15:901b:901b:fb65:4024:3136:b51f:15d1	181.31.21.209
cb15:901b:901b:fb65:4024:3136:b51f:15d2	181.31.21.210
cb15:901b:901b:fb65:4024:3136:b51f:15d3	181.31.21.211
cb15:901b:901b:fb65:4024:3136:b51f:15d4	181.31.21.212
cb15:901b:901b:fb65:4024:3136:b51f:15d5	181.31.21.213
cb15:901b:901b:fb65:4024:3136:b51f:15d6	181.31.21.214
cb15:901b:901b:fb65:4024:3136:b51f:15d7	181.31.21.215
cb15:901b:901b:fb65:4024:3136:b51f:15d8	181.31.21.216
cb15:901b:901b:fb65:4024:3136:b51f:15d9	181.31.21.217
cb15:901b:901b:fb65:4024:3136:b51f:15da	181.31.21.218
cb15:901b:901b:fb65:4024:3136:b51f:15db	181.31.21.219
cb15:901b:901b:fb65:4024:3136:b51f:15dc	181.31.21.220
cb15:901b:901b:fb65:4024:3136:b51f:15dd	181.31.21.221
cb15:901b:901b:fb65:4024:3136:b51f:15de	181.31.21.222
cb15:901b:901b:fb65:4024:3136:b51f:15df	181.31.21.223
cb15:901b:901b:fb65:4024:3136:b51f:15e0	181.31.21.224
cb15:901b:901b:fb65:4024:3136:b51f:15e1	181.31.21.225
cb15:901b:901b:fb65:4024:3136:b51f:15e2	181.31.21.226
cb15:901b:901b:fb65:4024:3136:b51f:15e3	181.31.21.227
cb15:901b:901b:fb65:4024:3136:b51f:15e4	181.31.21.228
cb15:901b:901b:fb65:4024:3136:b51f:15e5	181.31.21.229
cb15:901b:901b:fb65:4024:3136:b51f:15e6	181.31.21.230
cb15:901b:901b:fb65:4024:3136:b51f:15e7	181.31.21.231
cb15:901b:901b:fb65:4024:3136:b51f:15e8	181.31.21.232
cb15:901b:901b:fb65:4024:3136:b51f:15e9	181.31.21.233
cb15:901b:901b:fb65:4024:3136:b51f:15ea	181.31.21.234
cb15:901b:901b:fb65:4024:3136:b51f:15eb	181.31.21.235
cb15:901b:901b:fb65:4024:3136:b51f:15ec	181.31.21.236
cb15:901b:901b:fb65:4024:3136:b51f:15ed	181.31.21.237
cb15:901b:901b:fb65:4024:3136:b51f:15ee	181.31.21.238
cb15:901b:901b:fb65:4024:3136:b51f:15ef	181.31.21.239
cb15:901b:901b:fb65:4024:3136:b51f:15f0	181.31.21.240
cb15:901b:901b:fb65:4024:3136:b51f:15f1	181.31.21.241
cb15:901b:901b:fb65:4024:3136:b51f:15f2	181.31.21.242
cb15:901b:901b:fb65:4024:3136:b51f:15f3	181.31.21.243
cb15:901b:901b:fb65:4024:3136:b51f:15f4	181.31.21.244
cb15:901b:901b:fb65:4024:3136:b51f:15f5	181.31.21.245
cb15:901b:901b:fb65:4024:3136:b51f:15f6	181.31.21.246
cb15:901b:901b:fb65:4024:3136:b51f:15f7	181.31.21.247
cb15:901b:901b:fb65:4024:3136:b51f:15f8	181.31.21.248
cb15:901b:901b:fb65:4024:3136:b51f:15f9	181.31.21.249
cb15:901b:901b:fb65:4024:3136:b51f:15fa	181.31.21.250
cb15:901b:901b:fb65:4024:3136:b51f:15fb	181.31.21.251
cb15:901b:901b:fb65:4024:3136:b51f:15fc	181.31.21.252
cb15:901b:901b:fb65:4024:3136:b51f:15fd	181.31.21.253
cb15:901b:901b:fb65:4024:3136:b51f:15fe	181.31.21.254
cb15:901b:901b:fb65:4024:3136:b51f:15ff	181.31.21.255

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.