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:cb15:8045:ada8:cdcd:80fd:b501	128.253.181.1
b51a:901b:cb15:8045:ada8:cdcd:80fd:b502	128.253.181.2
b51a:901b:cb15:8045:ada8:cdcd:80fd:b503	128.253.181.3
b51a:901b:cb15:8045:ada8:cdcd:80fd:b504	128.253.181.4
b51a:901b:cb15:8045:ada8:cdcd:80fd:b505	128.253.181.5
b51a:901b:cb15:8045:ada8:cdcd:80fd:b506	128.253.181.6
b51a:901b:cb15:8045:ada8:cdcd:80fd:b507	128.253.181.7
b51a:901b:cb15:8045:ada8:cdcd:80fd:b508	128.253.181.8
b51a:901b:cb15:8045:ada8:cdcd:80fd:b509	128.253.181.9
b51a:901b:cb15:8045:ada8:cdcd:80fd:b50a	128.253.181.10
b51a:901b:cb15:8045:ada8:cdcd:80fd:b50b	128.253.181.11
b51a:901b:cb15:8045:ada8:cdcd:80fd:b50c	128.253.181.12
b51a:901b:cb15:8045:ada8:cdcd:80fd:b50d	128.253.181.13
b51a:901b:cb15:8045:ada8:cdcd:80fd:b50e	128.253.181.14
b51a:901b:cb15:8045:ada8:cdcd:80fd:b50f	128.253.181.15
b51a:901b:cb15:8045:ada8:cdcd:80fd:b510	128.253.181.16
b51a:901b:cb15:8045:ada8:cdcd:80fd:b511	128.253.181.17
b51a:901b:cb15:8045:ada8:cdcd:80fd:b512	128.253.181.18
b51a:901b:cb15:8045:ada8:cdcd:80fd:b513	128.253.181.19
b51a:901b:cb15:8045:ada8:cdcd:80fd:b514	128.253.181.20
b51a:901b:cb15:8045:ada8:cdcd:80fd:b515	128.253.181.21
b51a:901b:cb15:8045:ada8:cdcd:80fd:b516	128.253.181.22
b51a:901b:cb15:8045:ada8:cdcd:80fd:b517	128.253.181.23
b51a:901b:cb15:8045:ada8:cdcd:80fd:b518	128.253.181.24
b51a:901b:cb15:8045:ada8:cdcd:80fd:b519	128.253.181.25
b51a:901b:cb15:8045:ada8:cdcd:80fd:b51a	128.253.181.26
b51a:901b:cb15:8045:ada8:cdcd:80fd:b51b	128.253.181.27
b51a:901b:cb15:8045:ada8:cdcd:80fd:b51c	128.253.181.28
b51a:901b:cb15:8045:ada8:cdcd:80fd:b51d	128.253.181.29
b51a:901b:cb15:8045:ada8:cdcd:80fd:b51e	128.253.181.30
b51a:901b:cb15:8045:ada8:cdcd:80fd:b51f	128.253.181.31
b51a:901b:cb15:8045:ada8:cdcd:80fd:b520	128.253.181.32
b51a:901b:cb15:8045:ada8:cdcd:80fd:b521	128.253.181.33
b51a:901b:cb15:8045:ada8:cdcd:80fd:b522	128.253.181.34
b51a:901b:cb15:8045:ada8:cdcd:80fd:b523	128.253.181.35
b51a:901b:cb15:8045:ada8:cdcd:80fd:b524	128.253.181.36
b51a:901b:cb15:8045:ada8:cdcd:80fd:b525	128.253.181.37
b51a:901b:cb15:8045:ada8:cdcd:80fd:b526	128.253.181.38
b51a:901b:cb15:8045:ada8:cdcd:80fd:b527	128.253.181.39
b51a:901b:cb15:8045:ada8:cdcd:80fd:b528	128.253.181.40
b51a:901b:cb15:8045:ada8:cdcd:80fd:b529	128.253.181.41
b51a:901b:cb15:8045:ada8:cdcd:80fd:b52a	128.253.181.42
b51a:901b:cb15:8045:ada8:cdcd:80fd:b52b	128.253.181.43
b51a:901b:cb15:8045:ada8:cdcd:80fd:b52c	128.253.181.44
b51a:901b:cb15:8045:ada8:cdcd:80fd:b52d	128.253.181.45
b51a:901b:cb15:8045:ada8:cdcd:80fd:b52e	128.253.181.46
b51a:901b:cb15:8045:ada8:cdcd:80fd:b52f	128.253.181.47
b51a:901b:cb15:8045:ada8:cdcd:80fd:b530	128.253.181.48
b51a:901b:cb15:8045:ada8:cdcd:80fd:b531	128.253.181.49
b51a:901b:cb15:8045:ada8:cdcd:80fd:b532	128.253.181.50
b51a:901b:cb15:8045:ada8:cdcd:80fd:b533	128.253.181.51
b51a:901b:cb15:8045:ada8:cdcd:80fd:b534	128.253.181.52
b51a:901b:cb15:8045:ada8:cdcd:80fd:b535	128.253.181.53
b51a:901b:cb15:8045:ada8:cdcd:80fd:b536	128.253.181.54
b51a:901b:cb15:8045:ada8:cdcd:80fd:b537	128.253.181.55
b51a:901b:cb15:8045:ada8:cdcd:80fd:b538	128.253.181.56
b51a:901b:cb15:8045:ada8:cdcd:80fd:b539	128.253.181.57
b51a:901b:cb15:8045:ada8:cdcd:80fd:b53a	128.253.181.58
b51a:901b:cb15:8045:ada8:cdcd:80fd:b53b	128.253.181.59
b51a:901b:cb15:8045:ada8:cdcd:80fd:b53c	128.253.181.60

b51a:901b:cb15:8045:ada8:cdcd:80fd:b53d	128.253.181.61
b51a:901b:cb15:8045:ada8:cdcd:80fd:b53e	128.253.181.62
b51a:901b:cb15:8045:ada8:cdcd:80fd:b53f	128.253.181.63
b51a:901b:cb15:8045:ada8:cdcd:80fd:b540	128.253.181.64
b51a:901b:cb15:8045:ada8:cdcd:80fd:b541	128.253.181.65
b51a:901b:cb15:8045:ada8:cdcd:80fd:b542	128.253.181.66
b51a:901b:cb15:8045:ada8:cdcd:80fd:b543	128.253.181.67
b51a:901b:cb15:8045:ada8:cdcd:80fd:b544	128.253.181.68
b51a:901b:cb15:8045:ada8:cdcd:80fd:b545	128.253.181.69
b51a:901b:cb15:8045:ada8:cdcd:80fd:b546	128.253.181.70
b51a:901b:cb15:8045:ada8:cdcd:80fd:b547	128.253.181.71
b51a:901b:cb15:8045:ada8:cdcd:80fd:b548	128.253.181.72
b51a:901b:cb15:8045:ada8:cdcd:80fd:b549	128.253.181.73
b51a:901b:cb15:8045:ada8:cdcd:80fd:b54a	128.253.181.74
b51a:901b:cb15:8045:ada8:cdcd:80fd:b54b	128.253.181.75
b51a:901b:cb15:8045:ada8:cdcd:80fd:b54c	128.253.181.76
b51a:901b:cb15:8045:ada8:cdcd:80fd:b54d	128.253.181.77
b51a:901b:cb15:8045:ada8:cdcd:80fd:b54e	128.253.181.78
b51a:901b:cb15:8045:ada8:cdcd:80fd:b54f	128.253.181.79
b51a:901b:cb15:8045:ada8:cdcd:80fd:b550	128.253.181.80
b51a:901b:cb15:8045:ada8:cdcd:80fd:b551	128.253.181.81
b51a:901b:cb15:8045:ada8:cdcd:80fd:b552	128.253.181.82
b51a:901b:cb15:8045:ada8:cdcd:80fd:b553	128.253.181.83
b51a:901b:cb15:8045:ada8:cdcd:80fd:b554	128.253.181.84
b51a:901b:cb15:8045:ada8:cdcd:80fd:b555	128.253.181.85
b51a:901b:cb15:8045:ada8:cdcd:80fd:b556	128.253.181.86
b51a:901b:cb15:8045:ada8:cdcd:80fd:b557	128.253.181.87
b51a:901b:cb15:8045:ada8:cdcd:80fd:b558	128.253.181.88
b51a:901b:cb15:8045:ada8:cdcd:80fd:b559	128.253.181.89
b51a:901b:cb15:8045:ada8:cdcd:80fd:b55a	128.253.181.90
b51a:901b:cb15:8045:ada8:cdcd:80fd:b55b	128.253.181.91
b51a:901b:cb15:8045:ada8:cdcd:80fd:b55c	128.253.181.92
b51a:901b:cb15:8045:ada8:cdcd:80fd:b55d	128.253.181.93
b51a:901b:cb15:8045:ada8:cdcd:80fd:b55e	128.253.181.94
b51a:901b:cb15:8045:ada8:cdcd:80fd:b55f	128.253.181.95
b51a:901b:cb15:8045:ada8:cdcd:80fd:b560	128.253.181.96
b51a:901b:cb15:8045:ada8:cdcd:80fd:b561	128.253.181.97
b51a:901b:cb15:8045:ada8:cdcd:80fd:b562	128.253.181.98
b51a:901b:cb15:8045:ada8:cdcd:80fd:b563	128.253.181.99
b51a:901b:cb15:8045:ada8:cdcd:80fd:b564	128.253.181.100
b51a:901b:cb15:8045:ada8:cdcd:80fd:b565	128.253.181.101
b51a:901b:cb15:8045:ada8:cdcd:80fd:b566	128.253.181.102
b51a:901b:cb15:8045:ada8:cdcd:80fd:b567	128.253.181.103
b51a:901b:cb15:8045:ada8:cdcd:80fd:b568	128.253.181.104
b51a:901b:cb15:8045:ada8:cdcd:80fd:b569	128.253.181.105
b51a:901b:cb15:8045:ada8:cdcd:80fd:b56a	128.253.181.106
b51a:901b:cb15:8045:ada8:cdcd:80fd:b56b	128.253.181.107
b51a:901b:cb15:8045:ada8:cdcd:80fd:b56c	128.253.181.108
b51a:901b:cb15:8045:ada8:cdcd:80fd:b56d	128.253.181.109
b51a:901b:cb15:8045:ada8:cdcd:80fd:b56e	128.253.181.110
b51a:901b:cb15:8045:ada8:cdcd:80fd:b56f	128.253.181.111
b51a:901b:cb15:8045:ada8:cdcd:80fd:b570	128.253.181.112
b51a:901b:cb15:8045:ada8:cdcd:80fd:b571	128.253.181.113
b51a:901b:cb15:8045:ada8:cdcd:80fd:b572	128.253.181.114
b51a:901b:cb15:8045:ada8:cdcd:80fd:b573	128.253.181.115
b51a:901b:cb15:8045:ada8:cdcd:80fd:b574	128.253.181.116
b51a:901b:cb15:8045:ada8:cdcd:80fd:b575	128.253.181.117
b51a:901b:cb15:8045:ada8:cdcd:80fd:b576	128.253.181.118
b51a:901b:cb15:8045:ada8:cdcd:80fd:b577	128.253.181.119
b51a:901b:cb15:8045:ada8:cdcd:80fd:b578	128.253.181.120

b51a:901b:cb15:8045:ada8:cdcd:80fd:b579	128.253.181.121
b51a:901b:cb15:8045:ada8:cdcd:80fd:b57a	128.253.181.122
b51a:901b:cb15:8045:ada8:cdcd:80fd:b57b	128.253.181.123
b51a:901b:cb15:8045:ada8:cdcd:80fd:b57c	128.253.181.124
b51a:901b:cb15:8045:ada8:cdcd:80fd:b57d	128.253.181.125
b51a:901b:cb15:8045:ada8:cdcd:80fd:b57e	128.253.181.126
b51a:901b:cb15:8045:ada8:cdcd:80fd:b57f	128.253.181.127
b51a:901b:cb15:8045:ada8:cdcd:80fd:b580	128.253.181.128
b51a:901b:cb15:8045:ada8:cdcd:80fd:b581	128.253.181.129
b51a:901b:cb15:8045:ada8:cdcd:80fd:b582	128.253.181.130
b51a:901b:cb15:8045:ada8:cdcd:80fd:b583	128.253.181.131
b51a:901b:cb15:8045:ada8:cdcd:80fd:b584	128.253.181.132
b51a:901b:cb15:8045:ada8:cdcd:80fd:b585	128.253.181.133
b51a:901b:cb15:8045:ada8:cdcd:80fd:b586	128.253.181.134
b51a:901b:cb15:8045:ada8:cdcd:80fd:b587	128.253.181.135
b51a:901b:cb15:8045:ada8:cdcd:80fd:b588	128.253.181.136
b51a:901b:cb15:8045:ada8:cdcd:80fd:b589	128.253.181.137
b51a:901b:cb15:8045:ada8:cdcd:80fd:b58a	128.253.181.138
b51a:901b:cb15:8045:ada8:cdcd:80fd:b58b	128.253.181.139
b51a:901b:cb15:8045:ada8:cdcd:80fd:b58c	128.253.181.140
b51a:901b:cb15:8045:ada8:cdcd:80fd:b58d	128.253.181.141
b51a:901b:cb15:8045:ada8:cdcd:80fd:b58e	128.253.181.142
b51a:901b:cb15:8045:ada8:cdcd:80fd:b58f	128.253.181.143
b51a:901b:cb15:8045:ada8:cdcd:80fd:b590	128.253.181.144
b51a:901b:cb15:8045:ada8:cdcd:80fd:b591	128.253.181.145
b51a:901b:cb15:8045:ada8:cdcd:80fd:b592	128.253.181.146
b51a:901b:cb15:8045:ada8:cdcd:80fd:b593	128.253.181.147
b51a:901b:cb15:8045:ada8:cdcd:80fd:b594	128.253.181.148
b51a:901b:cb15:8045:ada8:cdcd:80fd:b595	128.253.181.149
b51a:901b:cb15:8045:ada8:cdcd:80fd:b596	128.253.181.150
b51a:901b:cb15:8045:ada8:cdcd:80fd:b597	128.253.181.151
b51a:901b:cb15:8045:ada8:cdcd:80fd:b598	128.253.181.152
b51a:901b:cb15:8045:ada8:cdcd:80fd:b599	128.253.181.153
b51a:901b:cb15:8045:ada8:cdcd:80fd:b59a	128.253.181.154
b51a:901b:cb15:8045:ada8:cdcd:80fd:b59b	128.253.181.155
b51a:901b:cb15:8045:ada8:cdcd:80fd:b59c	128.253.181.156
b51a:901b:cb15:8045:ada8:cdcd:80fd:b59d	128.253.181.157
b51a:901b:cb15:8045:ada8:cdcd:80fd:b59e	128.253.181.158
b51a:901b:cb15:8045:ada8:cdcd:80fd:b59f	128.253.181.159
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5a0	128.253.181.160
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5a1	128.253.181.161
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5a2	128.253.181.162
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5a3	128.253.181.163
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5a4	128.253.181.164
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5a5	128.253.181.165
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5a6	128.253.181.166
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5a7	128.253.181.167
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5a8	128.253.181.168
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5a9	128.253.181.169
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5aa	128.253.181.170
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ab	128.253.181.171
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ac	128.253.181.172
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ad	128.253.181.173
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ae	128.253.181.174
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5af	128.253.181.175
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5b0	128.253.181.176
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5b1	128.253.181.177
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5b2	128.253.181.178
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5b3	128.253.181.179
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5b4	128.253.181.180

b51a:901b:cb15:8045:ada8:cdcd:80fd:b5b5	128.253.181.181
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5b6	128.253.181.182
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5b7	128.253.181.183
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5b8	128.253.181.184
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5b9	128.253.181.185
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ba	128.253.181.186
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5bb	128.253.181.187
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5bc	128.253.181.188
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5bd	128.253.181.189
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5be	128.253.181.190
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5bf	128.253.181.191
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5c0	128.253.181.192
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5c1	128.253.181.193
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5c2	128.253.181.194
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5c3	128.253.181.195
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5c4	128.253.181.196
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5c5	128.253.181.197
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5c6	128.253.181.198
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5c7	128.253.181.199
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5c8	128.253.181.200
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5c9	128.253.181.201
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ca	128.253.181.202
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5cb	128.253.181.203
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5cc	128.253.181.204
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5cd	128.253.181.205
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ce	128.253.181.206
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5cf	128.253.181.207
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5d0	128.253.181.208
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5d1	128.253.181.209
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5d2	128.253.181.210
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5d3	128.253.181.211
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5d4	128.253.181.212
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5d5	128.253.181.213
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5d6	128.253.181.214
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5d7	128.253.181.215
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5d8	128.253.181.216
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5d9	128.253.181.217
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5da	128.253.181.218
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5db	128.253.181.219
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5dc	128.253.181.220
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5dd	128.253.181.221
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5de	128.253.181.222
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5df	128.253.181.223
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5e0	128.253.181.224
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5e1	128.253.181.225
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5e2	128.253.181.226
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5e3	128.253.181.227
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5e4	128.253.181.228
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5e5	128.253.181.229
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5e6	128.253.181.230
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5e7	128.253.181.231
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5e8	128.253.181.232
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5e9	128.253.181.233
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ea	128.253.181.234
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5eb	128.253.181.235
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ec	128.253.181.236
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ed	128.253.181.237
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ee	128.253.181.238
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ef	128.253.181.239
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5f0	128.253.181.240
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5f1	128.253.181.241
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5f2	128.253.181.242
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5f3	128.253.181.243
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5f4	128.253.181.244
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5f5	128.253.181.245
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5f6	128.253.181.246
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5f7	128.253.181.247
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5f8	128.253.181.248
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5f9	128.253.181.249
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5fa	128.253.181.250
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5fb	128.253.181.251
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5fc	128.253.181.252
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5fd	128.253.181.253
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5fe	128.253.181.254
b51a:901b:cb15:8045:ada8:cdcd:80fd:b5ff	128.253.181.255

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.