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:8024:cd24:8081:4072:7b51:1501	123.81.21.1
cb15:901b:8024:cd24:8081:4072:7b51:1502	123.81.21.2
cb15:901b:8024:cd24:8081:4072:7b51:1503	123.81.21.3
cb15:901b:8024:cd24:8081:4072:7b51:1504	123.81.21.4
cb15:901b:8024:cd24:8081:4072:7b51:1505	123.81.21.5
cb15:901b:8024:cd24:8081:4072:7b51:1506	123.81.21.6
cb15:901b:8024:cd24:8081:4072:7b51:1507	123.81.21.7
cb15:901b:8024:cd24:8081:4072:7b51:1508	123.81.21.8
cb15:901b:8024:cd24:8081:4072:7b51:1509	123.81.21.9
cb15:901b:8024:cd24:8081:4072:7b51:150a	123.81.21.10
cb15:901b:8024:cd24:8081:4072:7b51:150b	123.81.21.11
cb15:901b:8024:cd24:8081:4072:7b51:150c	123.81.21.12
cb15:901b:8024:cd24:8081:4072:7b51:150d	123.81.21.13
cb15:901b:8024:cd24:8081:4072:7b51:150e	123.81.21.14
cb15:901b:8024:cd24:8081:4072:7b51:150f	123.81.21.15
cb15:901b:8024:cd24:8081:4072:7b51:1510	123.81.21.16
cb15:901b:8024:cd24:8081:4072:7b51:1511	123.81.21.17
cb15:901b:8024:cd24:8081:4072:7b51:1512	123.81.21.18
cb15:901b:8024:cd24:8081:4072:7b51:1513	123.81.21.19
cb15:901b:8024:cd24:8081:4072:7b51:1514	123.81.21.20
cb15:901b:8024:cd24:8081:4072:7b51:1515	123.81.21.21
cb15:901b:8024:cd24:8081:4072:7b51:1516	123.81.21.22
cb15:901b:8024:cd24:8081:4072:7b51:1517	123.81.21.23
cb15:901b:8024:cd24:8081:4072:7b51:1518	123.81.21.24
cb15:901b:8024:cd24:8081:4072:7b51:1519	123.81.21.25
cb15:901b:8024:cd24:8081:4072:7b51:151a	123.81.21.26
cb15:901b:8024:cd24:8081:4072:7b51:151b	123.81.21.27
cb15:901b:8024:cd24:8081:4072:7b51:151c	123.81.21.28
cb15:901b:8024:cd24:8081:4072:7b51:151d	123.81.21.29
cb15:901b:8024:cd24:8081:4072:7b51:151e	123.81.21.30
cb15:901b:8024:cd24:8081:4072:7b51:151f	123.81.21.31
cb15:901b:8024:cd24:8081:4072:7b51:1520	123.81.21.32
cb15:901b:8024:cd24:8081:4072:7b51:1521	123.81.21.33
cb15:901b:8024:cd24:8081:4072:7b51:1522	123.81.21.34
cb15:901b:8024:cd24:8081:4072:7b51:1523	123.81.21.35
cb15:901b:8024:cd24:8081:4072:7b51:1524	123.81.21.36
cb15:901b:8024:cd24:8081:4072:7b51:1525	123.81.21.37
cb15:901b:8024:cd24:8081:4072:7b51:1526	123.81.21.38
cb15:901b:8024:cd24:8081:4072:7b51:1527	123.81.21.39
cb15:901b:8024:cd24:8081:4072:7b51:1528	123.81.21.40
cb15:901b:8024:cd24:8081:4072:7b51:1529	123.81.21.41
cb15:901b:8024:cd24:8081:4072:7b51:152a	123.81.21.42
cb15:901b:8024:cd24:8081:4072:7b51:152b	123.81.21.43
cb15:901b:8024:cd24:8081:4072:7b51:152c	123.81.21.44
cb15:901b:8024:cd24:8081:4072:7b51:152d	123.81.21.45
cb15:901b:8024:cd24:8081:4072:7b51:152e	123.81.21.46
cb15:901b:8024:cd24:8081:4072:7b51:152f	123.81.21.47
cb15:901b:8024:cd24:8081:4072:7b51:1530	123.81.21.48
cb15:901b:8024:cd24:8081:4072:7b51:1531	123.81.21.49
cb15:901b:8024:cd24:8081:4072:7b51:1532	123.81.21.50
cb15:901b:8024:cd24:8081:4072:7b51:1533	123.81.21.51
cb15:901b:8024:cd24:8081:4072:7b51:1534	123.81.21.52
cb15:901b:8024:cd24:8081:4072:7b51:1535	123.81.21.53
cb15:901b:8024:cd24:8081:4072:7b51:1536	123.81.21.54
cb15:901b:8024:cd24:8081:4072:7b51:1537	123.81.21.55
cb15:901b:8024:cd24:8081:4072:7b51:1538	123.81.21.56
cb15:901b:8024:cd24:8081:4072:7b51:1539	123.81.21.57
cb15:901b:8024:cd24:8081:4072:7b51:153a	123.81.21.58
cb15:901b:8024:cd24:8081:4072:7b51:153b	123.81.21.59
cb15:901b:8024:cd24:8081:4072:7b51:153c	123.81.21.60

cb15:901b:8024:cd24:8081:4072:7b51:153d	123.81.21.61
cb15:901b:8024:cd24:8081:4072:7b51:153e	123.81.21.62
cb15:901b:8024:cd24:8081:4072:7b51:153f	123.81.21.63
cb15:901b:8024:cd24:8081:4072:7b51:1540	123.81.21.64
cb15:901b:8024:cd24:8081:4072:7b51:1541	123.81.21.65
cb15:901b:8024:cd24:8081:4072:7b51:1542	123.81.21.66
cb15:901b:8024:cd24:8081:4072:7b51:1543	123.81.21.67
cb15:901b:8024:cd24:8081:4072:7b51:1544	123.81.21.68
cb15:901b:8024:cd24:8081:4072:7b51:1545	123.81.21.69
cb15:901b:8024:cd24:8081:4072:7b51:1546	123.81.21.70
cb15:901b:8024:cd24:8081:4072:7b51:1547	123.81.21.71
cb15:901b:8024:cd24:8081:4072:7b51:1548	123.81.21.72
cb15:901b:8024:cd24:8081:4072:7b51:1549	123.81.21.73
cb15:901b:8024:cd24:8081:4072:7b51:154a	123.81.21.74
cb15:901b:8024:cd24:8081:4072:7b51:154b	123.81.21.75
cb15:901b:8024:cd24:8081:4072:7b51:154c	123.81.21.76
cb15:901b:8024:cd24:8081:4072:7b51:154d	123.81.21.77
cb15:901b:8024:cd24:8081:4072:7b51:154e	123.81.21.78
cb15:901b:8024:cd24:8081:4072:7b51:154f	123.81.21.79
cb15:901b:8024:cd24:8081:4072:7b51:1550	123.81.21.80
cb15:901b:8024:cd24:8081:4072:7b51:1551	123.81.21.81
cb15:901b:8024:cd24:8081:4072:7b51:1552	123.81.21.82
cb15:901b:8024:cd24:8081:4072:7b51:1553	123.81.21.83
cb15:901b:8024:cd24:8081:4072:7b51:1554	123.81.21.84
cb15:901b:8024:cd24:8081:4072:7b51:1555	123.81.21.85
cb15:901b:8024:cd24:8081:4072:7b51:1556	123.81.21.86
cb15:901b:8024:cd24:8081:4072:7b51:1557	123.81.21.87
cb15:901b:8024:cd24:8081:4072:7b51:1558	123.81.21.88
cb15:901b:8024:cd24:8081:4072:7b51:1559	123.81.21.89
cb15:901b:8024:cd24:8081:4072:7b51:155a	123.81.21.90
cb15:901b:8024:cd24:8081:4072:7b51:155b	123.81.21.91
cb15:901b:8024:cd24:8081:4072:7b51:155c	123.81.21.92
cb15:901b:8024:cd24:8081:4072:7b51:155d	123.81.21.93
cb15:901b:8024:cd24:8081:4072:7b51:155e	123.81.21.94
cb15:901b:8024:cd24:8081:4072:7b51:155f	123.81.21.95
cb15:901b:8024:cd24:8081:4072:7b51:1560	123.81.21.96
cb15:901b:8024:cd24:8081:4072:7b51:1561	123.81.21.97
cb15:901b:8024:cd24:8081:4072:7b51:1562	123.81.21.98
cb15:901b:8024:cd24:8081:4072:7b51:1563	123.81.21.99
cb15:901b:8024:cd24:8081:4072:7b51:1564	123.81.21.100
cb15:901b:8024:cd24:8081:4072:7b51:1565	123.81.21.101
cb15:901b:8024:cd24:8081:4072:7b51:1566	123.81.21.102
cb15:901b:8024:cd24:8081:4072:7b51:1567	123.81.21.103
cb15:901b:8024:cd24:8081:4072:7b51:1568	123.81.21.104
cb15:901b:8024:cd24:8081:4072:7b51:1569	123.81.21.105
cb15:901b:8024:cd24:8081:4072:7b51:156a	123.81.21.106
cb15:901b:8024:cd24:8081:4072:7b51:156b	123.81.21.107
cb15:901b:8024:cd24:8081:4072:7b51:156c	123.81.21.108
cb15:901b:8024:cd24:8081:4072:7b51:156d	123.81.21.109
cb15:901b:8024:cd24:8081:4072:7b51:156e	123.81.21.110
cb15:901b:8024:cd24:8081:4072:7b51:156f	123.81.21.111
cb15:901b:8024:cd24:8081:4072:7b51:1570	123.81.21.112
cb15:901b:8024:cd24:8081:4072:7b51:1571	123.81.21.113
cb15:901b:8024:cd24:8081:4072:7b51:1572	123.81.21.114
cb15:901b:8024:cd24:8081:4072:7b51:1573	123.81.21.115
cb15:901b:8024:cd24:8081:4072:7b51:1574	123.81.21.116
cb15:901b:8024:cd24:8081:4072:7b51:1575	123.81.21.117
cb15:901b:8024:cd24:8081:4072:7b51:1576	123.81.21.118
cb15:901b:8024:cd24:8081:4072:7b51:1577	123.81.21.119
cb15:901b:8024:cd24:8081:4072:7b51:1578	123.81.21.120

cb15:901b:8024:cd24:8081:4072:7b51:1579	123.81.21.121
cb15:901b:8024:cd24:8081:4072:7b51:157a	123.81.21.122
cb15:901b:8024:cd24:8081:4072:7b51:157b	123.81.21.123
cb15:901b:8024:cd24:8081:4072:7b51:157c	123.81.21.124
cb15:901b:8024:cd24:8081:4072:7b51:157d	123.81.21.125
cb15:901b:8024:cd24:8081:4072:7b51:157e	123.81.21.126
cb15:901b:8024:cd24:8081:4072:7b51:157f	123.81.21.127
cb15:901b:8024:cd24:8081:4072:7b51:1580	123.81.21.128
cb15:901b:8024:cd24:8081:4072:7b51:1581	123.81.21.129
cb15:901b:8024:cd24:8081:4072:7b51:1582	123.81.21.130
cb15:901b:8024:cd24:8081:4072:7b51:1583	123.81.21.131
cb15:901b:8024:cd24:8081:4072:7b51:1584	123.81.21.132
cb15:901b:8024:cd24:8081:4072:7b51:1585	123.81.21.133
cb15:901b:8024:cd24:8081:4072:7b51:1586	123.81.21.134
cb15:901b:8024:cd24:8081:4072:7b51:1587	123.81.21.135
cb15:901b:8024:cd24:8081:4072:7b51:1588	123.81.21.136
cb15:901b:8024:cd24:8081:4072:7b51:1589	123.81.21.137
cb15:901b:8024:cd24:8081:4072:7b51:158a	123.81.21.138
cb15:901b:8024:cd24:8081:4072:7b51:158b	123.81.21.139
cb15:901b:8024:cd24:8081:4072:7b51:158c	123.81.21.140
cb15:901b:8024:cd24:8081:4072:7b51:158d	123.81.21.141
cb15:901b:8024:cd24:8081:4072:7b51:158e	123.81.21.142
cb15:901b:8024:cd24:8081:4072:7b51:158f	123.81.21.143
cb15:901b:8024:cd24:8081:4072:7b51:1590	123.81.21.144
cb15:901b:8024:cd24:8081:4072:7b51:1591	123.81.21.145
cb15:901b:8024:cd24:8081:4072:7b51:1592	123.81.21.146
cb15:901b:8024:cd24:8081:4072:7b51:1593	123.81.21.147
cb15:901b:8024:cd24:8081:4072:7b51:1594	123.81.21.148
cb15:901b:8024:cd24:8081:4072:7b51:1595	123.81.21.149
cb15:901b:8024:cd24:8081:4072:7b51:1596	123.81.21.150
cb15:901b:8024:cd24:8081:4072:7b51:1597	123.81.21.151
cb15:901b:8024:cd24:8081:4072:7b51:1598	123.81.21.152
cb15:901b:8024:cd24:8081:4072:7b51:1599	123.81.21.153
cb15:901b:8024:cd24:8081:4072:7b51:159a	123.81.21.154
cb15:901b:8024:cd24:8081:4072:7b51:159b	123.81.21.155
cb15:901b:8024:cd24:8081:4072:7b51:159c	123.81.21.156
cb15:901b:8024:cd24:8081:4072:7b51:159d	123.81.21.157
cb15:901b:8024:cd24:8081:4072:7b51:159e	123.81.21.158
cb15:901b:8024:cd24:8081:4072:7b51:159f	123.81.21.159
cb15:901b:8024:cd24:8081:4072:7b51:15a0	123.81.21.160
cb15:901b:8024:cd24:8081:4072:7b51:15a1	123.81.21.161
cb15:901b:8024:cd24:8081:4072:7b51:15a2	123.81.21.162
cb15:901b:8024:cd24:8081:4072:7b51:15a3	123.81.21.163
cb15:901b:8024:cd24:8081:4072:7b51:15a4	123.81.21.164
cb15:901b:8024:cd24:8081:4072:7b51:15a5	123.81.21.165
cb15:901b:8024:cd24:8081:4072:7b51:15a6	123.81.21.166
cb15:901b:8024:cd24:8081:4072:7b51:15a7	123.81.21.167
cb15:901b:8024:cd24:8081:4072:7b51:15a8	123.81.21.168
cb15:901b:8024:cd24:8081:4072:7b51:15a9	123.81.21.169
cb15:901b:8024:cd24:8081:4072:7b51:15aa	123.81.21.170
cb15:901b:8024:cd24:8081:4072:7b51:15ab	123.81.21.171
cb15:901b:8024:cd24:8081:4072:7b51:15ac	123.81.21.172
cb15:901b:8024:cd24:8081:4072:7b51:15ad	123.81.21.173
cb15:901b:8024:cd24:8081:4072:7b51:15ae	123.81.21.174
cb15:901b:8024:cd24:8081:4072:7b51:15af	123.81.21.175
cb15:901b:8024:cd24:8081:4072:7b51:15b0	123.81.21.176
cb15:901b:8024:cd24:8081:4072:7b51:15b1	123.81.21.177
cb15:901b:8024:cd24:8081:4072:7b51:15b2	123.81.21.178
cb15:901b:8024:cd24:8081:4072:7b51:15b3	123.81.21.179
cb15:901b:8024:cd24:8081:4072:7b51:15b4	123.81.21.180

cb15:901b:8024:cd24:8081:4072:7b51:15b5	123.81.21.181
cb15:901b:8024:cd24:8081:4072:7b51:15b6	123.81.21.182
cb15:901b:8024:cd24:8081:4072:7b51:15b7	123.81.21.183
cb15:901b:8024:cd24:8081:4072:7b51:15b8	123.81.21.184
cb15:901b:8024:cd24:8081:4072:7b51:15b9	123.81.21.185
cb15:901b:8024:cd24:8081:4072:7b51:15ba	123.81.21.186
cb15:901b:8024:cd24:8081:4072:7b51:15bb	123.81.21.187
cb15:901b:8024:cd24:8081:4072:7b51:15bc	123.81.21.188
cb15:901b:8024:cd24:8081:4072:7b51:15bd	123.81.21.189
cb15:901b:8024:cd24:8081:4072:7b51:15be	123.81.21.190
cb15:901b:8024:cd24:8081:4072:7b51:15bf	123.81.21.191
cb15:901b:8024:cd24:8081:4072:7b51:15c0	123.81.21.192
cb15:901b:8024:cd24:8081:4072:7b51:15c1	123.81.21.193
cb15:901b:8024:cd24:8081:4072:7b51:15c2	123.81.21.194
cb15:901b:8024:cd24:8081:4072:7b51:15c3	123.81.21.195
cb15:901b:8024:cd24:8081:4072:7b51:15c4	123.81.21.196
cb15:901b:8024:cd24:8081:4072:7b51:15c5	123.81.21.197
cb15:901b:8024:cd24:8081:4072:7b51:15c6	123.81.21.198
cb15:901b:8024:cd24:8081:4072:7b51:15c7	123.81.21.199
cb15:901b:8024:cd24:8081:4072:7b51:15c8	123.81.21.200
cb15:901b:8024:cd24:8081:4072:7b51:15c9	123.81.21.201
cb15:901b:8024:cd24:8081:4072:7b51:15ca	123.81.21.202
cb15:901b:8024:cd24:8081:4072:7b51:15cb	123.81.21.203
cb15:901b:8024:cd24:8081:4072:7b51:15cc	123.81.21.204
cb15:901b:8024:cd24:8081:4072:7b51:15cd	123.81.21.205
cb15:901b:8024:cd24:8081:4072:7b51:15ce	123.81.21.206
cb15:901b:8024:cd24:8081:4072:7b51:15cf	123.81.21.207
cb15:901b:8024:cd24:8081:4072:7b51:15d0	123.81.21.208
cb15:901b:8024:cd24:8081:4072:7b51:15d1	123.81.21.209
cb15:901b:8024:cd24:8081:4072:7b51:15d2	123.81.21.210
cb15:901b:8024:cd24:8081:4072:7b51:15d3	123.81.21.211
cb15:901b:8024:cd24:8081:4072:7b51:15d4	123.81.21.212
cb15:901b:8024:cd24:8081:4072:7b51:15d5	123.81.21.213
cb15:901b:8024:cd24:8081:4072:7b51:15d6	123.81.21.214
cb15:901b:8024:cd24:8081:4072:7b51:15d7	123.81.21.215
cb15:901b:8024:cd24:8081:4072:7b51:15d8	123.81.21.216
cb15:901b:8024:cd24:8081:4072:7b51:15d9	123.81.21.217
cb15:901b:8024:cd24:8081:4072:7b51:15da	123.81.21.218
cb15:901b:8024:cd24:8081:4072:7b51:15db	123.81.21.219
cb15:901b:8024:cd24:8081:4072:7b51:15dc	123.81.21.220
cb15:901b:8024:cd24:8081:4072:7b51:15dd	123.81.21.221
cb15:901b:8024:cd24:8081:4072:7b51:15de	123.81.21.222
cb15:901b:8024:cd24:8081:4072:7b51:15df	123.81.21.223
cb15:901b:8024:cd24:8081:4072:7b51:15e0	123.81.21.224
cb15:901b:8024:cd24:8081:4072:7b51:15e1	123.81.21.225
cb15:901b:8024:cd24:8081:4072:7b51:15e2	123.81.21.226
cb15:901b:8024:cd24:8081:4072:7b51:15e3	123.81.21.227
cb15:901b:8024:cd24:8081:4072:7b51:15e4	123.81.21.228
cb15:901b:8024:cd24:8081:4072:7b51:15e5	123.81.21.229
cb15:901b:8024:cd24:8081:4072:7b51:15e6	123.81.21.230
cb15:901b:8024:cd24:8081:4072:7b51:15e7	123.81.21.231
cb15:901b:8024:cd24:8081:4072:7b51:15e8	123.81.21.232
cb15:901b:8024:cd24:8081:4072:7b51:15e9	123.81.21.233
cb15:901b:8024:cd24:8081:4072:7b51:15ea	123.81.21.234
cb15:901b:8024:cd24:8081:4072:7b51:15eb	123.81.21.235
cb15:901b:8024:cd24:8081:4072:7b51:15ec	123.81.21.236
cb15:901b:8024:cd24:8081:4072:7b51:15ed	123.81.21.237
cb15:901b:8024:cd24:8081:4072:7b51:15ee	123.81.21.238
cb15:901b:8024:cd24:8081:4072:7b51:15ef	123.81.21.239
cb15:901b:8024:cd24:8081:4072:7b51:15f0	123.81.21.240
cb15:901b:8024:cd24:8081:4072:7b51:15f1	123.81.21.241
cb15:901b:8024:cd24:8081:4072:7b51:15f2	123.81.21.242
cb15:901b:8024:cd24:8081:4072:7b51:15f3	123.81.21.243
cb15:901b:8024:cd24:8081:4072:7b51:15f4	123.81.21.244
cb15:901b:8024:cd24:8081:4072:7b51:15f5	123.81.21.245
cb15:901b:8024:cd24:8081:4072:7b51:15f6	123.81.21.246
cb15:901b:8024:cd24:8081:4072:7b51:15f7	123.81.21.247
cb15:901b:8024:cd24:8081:4072:7b51:15f8	123.81.21.248
cb15:901b:8024:cd24:8081:4072:7b51:15f9	123.81.21.249
cb15:901b:8024:cd24:8081:4072:7b51:15fa	123.81.21.250
cb15:901b:8024:cd24:8081:4072:7b51:15fb	123.81.21.251
cb15:901b:8024:cd24:8081:4072:7b51:15fc	123.81.21.252
cb15:901b:8024:cd24:8081:4072:7b51:15fd	123.81.21.253
cb15:901b:8024:cd24:8081:4072:7b51:15fe	123.81.21.254
cb15:901b:8024:cd24:8081:4072:7b51:15ff	123.81.21.255

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.