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:80fb:f401	128.251.244.1
b51a:901b:cb15:8045:ada8:cdcd:80fb:f402	128.251.244.2
b51a:901b:cb15:8045:ada8:cdcd:80fb:f403	128.251.244.3
b51a:901b:cb15:8045:ada8:cdcd:80fb:f404	128.251.244.4
b51a:901b:cb15:8045:ada8:cdcd:80fb:f405	128.251.244.5
b51a:901b:cb15:8045:ada8:cdcd:80fb:f406	128.251.244.6
b51a:901b:cb15:8045:ada8:cdcd:80fb:f407	128.251.244.7
b51a:901b:cb15:8045:ada8:cdcd:80fb:f408	128.251.244.8
b51a:901b:cb15:8045:ada8:cdcd:80fb:f409	128.251.244.9
b51a:901b:cb15:8045:ada8:cdcd:80fb:f40a	128.251.244.10
b51a:901b:cb15:8045:ada8:cdcd:80fb:f40b	128.251.244.11
b51a:901b:cb15:8045:ada8:cdcd:80fb:f40c	128.251.244.12
b51a:901b:cb15:8045:ada8:cdcd:80fb:f40d	128.251.244.13
b51a:901b:cb15:8045:ada8:cdcd:80fb:f40e	128.251.244.14
b51a:901b:cb15:8045:ada8:cdcd:80fb:f40f	128.251.244.15
b51a:901b:cb15:8045:ada8:cdcd:80fb:f410	128.251.244.16
b51a:901b:cb15:8045:ada8:cdcd:80fb:f411	128.251.244.17
b51a:901b:cb15:8045:ada8:cdcd:80fb:f412	128.251.244.18
b51a:901b:cb15:8045:ada8:cdcd:80fb:f413	128.251.244.19
b51a:901b:cb15:8045:ada8:cdcd:80fb:f414	128.251.244.20
b51a:901b:cb15:8045:ada8:cdcd:80fb:f415	128.251.244.21
b51a:901b:cb15:8045:ada8:cdcd:80fb:f416	128.251.244.22
b51a:901b:cb15:8045:ada8:cdcd:80fb:f417	128.251.244.23
b51a:901b:cb15:8045:ada8:cdcd:80fb:f418	128.251.244.24
b51a:901b:cb15:8045:ada8:cdcd:80fb:f419	128.251.244.25
b51a:901b:cb15:8045:ada8:cdcd:80fb:f41a	128.251.244.26
b51a:901b:cb15:8045:ada8:cdcd:80fb:f41b	128.251.244.27
b51a:901b:cb15:8045:ada8:cdcd:80fb:f41c	128.251.244.28
b51a:901b:cb15:8045:ada8:cdcd:80fb:f41d	128.251.244.29
b51a:901b:cb15:8045:ada8:cdcd:80fb:f41e	128.251.244.30
b51a:901b:cb15:8045:ada8:cdcd:80fb:f41f	128.251.244.31
b51a:901b:cb15:8045:ada8:cdcd:80fb:f420	128.251.244.32
b51a:901b:cb15:8045:ada8:cdcd:80fb:f421	128.251.244.33
b51a:901b:cb15:8045:ada8:cdcd:80fb:f422	128.251.244.34
b51a:901b:cb15:8045:ada8:cdcd:80fb:f423	128.251.244.35
b51a:901b:cb15:8045:ada8:cdcd:80fb:f424	128.251.244.36
b51a:901b:cb15:8045:ada8:cdcd:80fb:f425	128.251.244.37
b51a:901b:cb15:8045:ada8:cdcd:80fb:f426	128.251.244.38
b51a:901b:cb15:8045:ada8:cdcd:80fb:f427	128.251.244.39
b51a:901b:cb15:8045:ada8:cdcd:80fb:f428	128.251.244.40
b51a:901b:cb15:8045:ada8:cdcd:80fb:f429	128.251.244.41
b51a:901b:cb15:8045:ada8:cdcd:80fb:f42a	128.251.244.42
b51a:901b:cb15:8045:ada8:cdcd:80fb:f42b	128.251.244.43
b51a:901b:cb15:8045:ada8:cdcd:80fb:f42c	128.251.244.44
b51a:901b:cb15:8045:ada8:cdcd:80fb:f42d	128.251.244.45
b51a:901b:cb15:8045:ada8:cdcd:80fb:f42e	128.251.244.46
b51a:901b:cb15:8045:ada8:cdcd:80fb:f42f	128.251.244.47
b51a:901b:cb15:8045:ada8:cdcd:80fb:f430	128.251.244.48
b51a:901b:cb15:8045:ada8:cdcd:80fb:f431	128.251.244.49
b51a:901b:cb15:8045:ada8:cdcd:80fb:f432	128.251.244.50
b51a:901b:cb15:8045:ada8:cdcd:80fb:f433	128.251.244.51
b51a:901b:cb15:8045:ada8:cdcd:80fb:f434	128.251.244.52
b51a:901b:cb15:8045:ada8:cdcd:80fb:f435	128.251.244.53
b51a:901b:cb15:8045:ada8:cdcd:80fb:f436	128.251.244.54
b51a:901b:cb15:8045:ada8:cdcd:80fb:f437	128.251.244.55
b51a:901b:cb15:8045:ada8:cdcd:80fb:f438	128.251.244.56
b51a:901b:cb15:8045:ada8:cdcd:80fb:f439	128.251.244.57
b51a:901b:cb15:8045:ada8:cdcd:80fb:f43a	128.251.244.58
b51a:901b:cb15:8045:ada8:cdcd:80fb:f43b	128.251.244.59
b51a:901b:cb15:8045:ada8:cdcd:80fb:f43c	128.251.244.60

b51a:901b:cb15:8045:ada8:cdcd:80fb:f43d	128.251.244.61
b51a:901b:cb15:8045:ada8:cdcd:80fb:f43e	128.251.244.62
b51a:901b:cb15:8045:ada8:cdcd:80fb:f43f	128.251.244.63
b51a:901b:cb15:8045:ada8:cdcd:80fb:f440	128.251.244.64
b51a:901b:cb15:8045:ada8:cdcd:80fb:f441	128.251.244.65
b51a:901b:cb15:8045:ada8:cdcd:80fb:f442	128.251.244.66
b51a:901b:cb15:8045:ada8:cdcd:80fb:f443	128.251.244.67
b51a:901b:cb15:8045:ada8:cdcd:80fb:f444	128.251.244.68
b51a:901b:cb15:8045:ada8:cdcd:80fb:f445	128.251.244.69
b51a:901b:cb15:8045:ada8:cdcd:80fb:f446	128.251.244.70
b51a:901b:cb15:8045:ada8:cdcd:80fb:f447	128.251.244.71
b51a:901b:cb15:8045:ada8:cdcd:80fb:f448	128.251.244.72
b51a:901b:cb15:8045:ada8:cdcd:80fb:f449	128.251.244.73
b51a:901b:cb15:8045:ada8:cdcd:80fb:f44a	128.251.244.74
b51a:901b:cb15:8045:ada8:cdcd:80fb:f44b	128.251.244.75
b51a:901b:cb15:8045:ada8:cdcd:80fb:f44c	128.251.244.76
b51a:901b:cb15:8045:ada8:cdcd:80fb:f44d	128.251.244.77
b51a:901b:cb15:8045:ada8:cdcd:80fb:f44e	128.251.244.78
b51a:901b:cb15:8045:ada8:cdcd:80fb:f44f	128.251.244.79
b51a:901b:cb15:8045:ada8:cdcd:80fb:f450	128.251.244.80
b51a:901b:cb15:8045:ada8:cdcd:80fb:f451	128.251.244.81
b51a:901b:cb15:8045:ada8:cdcd:80fb:f452	128.251.244.82
b51a:901b:cb15:8045:ada8:cdcd:80fb:f453	128.251.244.83
b51a:901b:cb15:8045:ada8:cdcd:80fb:f454	128.251.244.84
b51a:901b:cb15:8045:ada8:cdcd:80fb:f455	128.251.244.85
b51a:901b:cb15:8045:ada8:cdcd:80fb:f456	128.251.244.86
b51a:901b:cb15:8045:ada8:cdcd:80fb:f457	128.251.244.87
b51a:901b:cb15:8045:ada8:cdcd:80fb:f458	128.251.244.88
b51a:901b:cb15:8045:ada8:cdcd:80fb:f459	128.251.244.89
b51a:901b:cb15:8045:ada8:cdcd:80fb:f45a	128.251.244.90
b51a:901b:cb15:8045:ada8:cdcd:80fb:f45b	128.251.244.91
b51a:901b:cb15:8045:ada8:cdcd:80fb:f45c	128.251.244.92
b51a:901b:cb15:8045:ada8:cdcd:80fb:f45d	128.251.244.93
b51a:901b:cb15:8045:ada8:cdcd:80fb:f45e	128.251.244.94
b51a:901b:cb15:8045:ada8:cdcd:80fb:f45f	128.251.244.95
b51a:901b:cb15:8045:ada8:cdcd:80fb:f460	128.251.244.96
b51a:901b:cb15:8045:ada8:cdcd:80fb:f461	128.251.244.97
b51a:901b:cb15:8045:ada8:cdcd:80fb:f462	128.251.244.98
b51a:901b:cb15:8045:ada8:cdcd:80fb:f463	128.251.244.99
b51a:901b:cb15:8045:ada8:cdcd:80fb:f464	128.251.244.100
b51a:901b:cb15:8045:ada8:cdcd:80fb:f465	128.251.244.101
b51a:901b:cb15:8045:ada8:cdcd:80fb:f466	128.251.244.102
b51a:901b:cb15:8045:ada8:cdcd:80fb:f467	128.251.244.103
b51a:901b:cb15:8045:ada8:cdcd:80fb:f468	128.251.244.104
b51a:901b:cb15:8045:ada8:cdcd:80fb:f469	128.251.244.105
b51a:901b:cb15:8045:ada8:cdcd:80fb:f46a	128.251.244.106
b51a:901b:cb15:8045:ada8:cdcd:80fb:f46b	128.251.244.107
b51a:901b:cb15:8045:ada8:cdcd:80fb:f46c	128.251.244.108
b51a:901b:cb15:8045:ada8:cdcd:80fb:f46d	128.251.244.109
b51a:901b:cb15:8045:ada8:cdcd:80fb:f46e	128.251.244.110
b51a:901b:cb15:8045:ada8:cdcd:80fb:f46f	128.251.244.111
b51a:901b:cb15:8045:ada8:cdcd:80fb:f470	128.251.244.112
b51a:901b:cb15:8045:ada8:cdcd:80fb:f471	128.251.244.113
b51a:901b:cb15:8045:ada8:cdcd:80fb:f472	128.251.244.114
b51a:901b:cb15:8045:ada8:cdcd:80fb:f473	128.251.244.115
b51a:901b:cb15:8045:ada8:cdcd:80fb:f474	128.251.244.116
b51a:901b:cb15:8045:ada8:cdcd:80fb:f475	128.251.244.117
b51a:901b:cb15:8045:ada8:cdcd:80fb:f476	128.251.244.118
b51a:901b:cb15:8045:ada8:cdcd:80fb:f477	128.251.244.119
b51a:901b:cb15:8045:ada8:cdcd:80fb:f478	128.251.244.120

b51a:901b:cb15:8045:ada8:cdcd:80fb:f479	128.251.244.121
b51a:901b:cb15:8045:ada8:cdcd:80fb:f47a	128.251.244.122
b51a:901b:cb15:8045:ada8:cdcd:80fb:f47b	128.251.244.123
b51a:901b:cb15:8045:ada8:cdcd:80fb:f47c	128.251.244.124
b51a:901b:cb15:8045:ada8:cdcd:80fb:f47d	128.251.244.125
b51a:901b:cb15:8045:ada8:cdcd:80fb:f47e	128.251.244.126
b51a:901b:cb15:8045:ada8:cdcd:80fb:f47f	128.251.244.127
b51a:901b:cb15:8045:ada8:cdcd:80fb:f480	128.251.244.128
b51a:901b:cb15:8045:ada8:cdcd:80fb:f481	128.251.244.129
b51a:901b:cb15:8045:ada8:cdcd:80fb:f482	128.251.244.130
b51a:901b:cb15:8045:ada8:cdcd:80fb:f483	128.251.244.131
b51a:901b:cb15:8045:ada8:cdcd:80fb:f484	128.251.244.132
b51a:901b:cb15:8045:ada8:cdcd:80fb:f485	128.251.244.133
b51a:901b:cb15:8045:ada8:cdcd:80fb:f486	128.251.244.134
b51a:901b:cb15:8045:ada8:cdcd:80fb:f487	128.251.244.135
b51a:901b:cb15:8045:ada8:cdcd:80fb:f488	128.251.244.136
b51a:901b:cb15:8045:ada8:cdcd:80fb:f489	128.251.244.137
b51a:901b:cb15:8045:ada8:cdcd:80fb:f48a	128.251.244.138
b51a:901b:cb15:8045:ada8:cdcd:80fb:f48b	128.251.244.139
b51a:901b:cb15:8045:ada8:cdcd:80fb:f48c	128.251.244.140
b51a:901b:cb15:8045:ada8:cdcd:80fb:f48d	128.251.244.141
b51a:901b:cb15:8045:ada8:cdcd:80fb:f48e	128.251.244.142
b51a:901b:cb15:8045:ada8:cdcd:80fb:f48f	128.251.244.143
b51a:901b:cb15:8045:ada8:cdcd:80fb:f490	128.251.244.144
b51a:901b:cb15:8045:ada8:cdcd:80fb:f491	128.251.244.145
b51a:901b:cb15:8045:ada8:cdcd:80fb:f492	128.251.244.146
b51a:901b:cb15:8045:ada8:cdcd:80fb:f493	128.251.244.147
b51a:901b:cb15:8045:ada8:cdcd:80fb:f494	128.251.244.148
b51a:901b:cb15:8045:ada8:cdcd:80fb:f495	128.251.244.149
b51a:901b:cb15:8045:ada8:cdcd:80fb:f496	128.251.244.150
b51a:901b:cb15:8045:ada8:cdcd:80fb:f497	128.251.244.151
b51a:901b:cb15:8045:ada8:cdcd:80fb:f498	128.251.244.152
b51a:901b:cb15:8045:ada8:cdcd:80fb:f499	128.251.244.153
b51a:901b:cb15:8045:ada8:cdcd:80fb:f49a	128.251.244.154
b51a:901b:cb15:8045:ada8:cdcd:80fb:f49b	128.251.244.155
b51a:901b:cb15:8045:ada8:cdcd:80fb:f49c	128.251.244.156
b51a:901b:cb15:8045:ada8:cdcd:80fb:f49d	128.251.244.157
b51a:901b:cb15:8045:ada8:cdcd:80fb:f49e	128.251.244.158
b51a:901b:cb15:8045:ada8:cdcd:80fb:f49f	128.251.244.159
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4a0	128.251.244.160
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4a1	128.251.244.161
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4a2	128.251.244.162
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4a3	128.251.244.163
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4a4	128.251.244.164
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4a5	128.251.244.165
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4a6	128.251.244.166
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4a7	128.251.244.167
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4a8	128.251.244.168
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4a9	128.251.244.169
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4aa	128.251.244.170
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ab	128.251.244.171
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ac	128.251.244.172
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ad	128.251.244.173
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ae	128.251.244.174
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4af	128.251.244.175
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4b0	128.251.244.176
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4b1	128.251.244.177
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4b2	128.251.244.178
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4b3	128.251.244.179
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4b4	128.251.244.180

b51a:901b:cb15:8045:ada8:cdcd:80fb:f4b5	128.251.244.181
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4b6	128.251.244.182
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4b7	128.251.244.183
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4b8	128.251.244.184
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4b9	128.251.244.185
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ba	128.251.244.186
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4bb	128.251.244.187
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4bc	128.251.244.188
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4bd	128.251.244.189
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4be	128.251.244.190
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4bf	128.251.244.191
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4c0	128.251.244.192
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4c1	128.251.244.193
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4c2	128.251.244.194
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4c3	128.251.244.195
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4c4	128.251.244.196
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4c5	128.251.244.197
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4c6	128.251.244.198
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4c7	128.251.244.199
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4c8	128.251.244.200
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4c9	128.251.244.201
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ca	128.251.244.202
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4cb	128.251.244.203
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4cc	128.251.244.204
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4cd	128.251.244.205
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ce	128.251.244.206
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4cf	128.251.244.207
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4d0	128.251.244.208
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4d1	128.251.244.209
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4d2	128.251.244.210
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4d3	128.251.244.211
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4d4	128.251.244.212
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4d5	128.251.244.213
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4d6	128.251.244.214
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4d7	128.251.244.215
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4d8	128.251.244.216
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4d9	128.251.244.217
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4da	128.251.244.218
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4db	128.251.244.219
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4dc	128.251.244.220
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4dd	128.251.244.221
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4de	128.251.244.222
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4df	128.251.244.223
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4e0	128.251.244.224
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4e1	128.251.244.225
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4e2	128.251.244.226
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4e3	128.251.244.227
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4e4	128.251.244.228
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4e5	128.251.244.229
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4e6	128.251.244.230
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4e7	128.251.244.231
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4e8	128.251.244.232
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4e9	128.251.244.233
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ea	128.251.244.234
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4eb	128.251.244.235
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ec	128.251.244.236
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ed	128.251.244.237
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ee	128.251.244.238
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ef	128.251.244.239
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4f0	128.251.244.240
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4f1	128.251.244.241
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4f2	128.251.244.242
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4f3	128.251.244.243
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4f4	128.251.244.244
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4f5	128.251.244.245
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4f6	128.251.244.246
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4f7	128.251.244.247
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4f8	128.251.244.248
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4f9	128.251.244.249
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4fa	128.251.244.250
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4fb	128.251.244.251
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4fc	128.251.244.252
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4fd	128.251.244.253
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4fe	128.251.244.254
b51a:901b:cb15:8045:ada8:cdcd:80fb:f4ff	128.251.244.255

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.