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:401	128.251.4.1
b51a:901b:cb15:8045:ada8:cdcd:80fb:402	128.251.4.2
b51a:901b:cb15:8045:ada8:cdcd:80fb:403	128.251.4.3
b51a:901b:cb15:8045:ada8:cdcd:80fb:404	128.251.4.4
b51a:901b:cb15:8045:ada8:cdcd:80fb:405	128.251.4.5
b51a:901b:cb15:8045:ada8:cdcd:80fb:406	128.251.4.6
b51a:901b:cb15:8045:ada8:cdcd:80fb:407	128.251.4.7
b51a:901b:cb15:8045:ada8:cdcd:80fb:408	128.251.4.8
b51a:901b:cb15:8045:ada8:cdcd:80fb:409	128.251.4.9
b51a:901b:cb15:8045:ada8:cdcd:80fb:40a	128.251.4.10
b51a:901b:cb15:8045:ada8:cdcd:80fb:40b	128.251.4.11
b51a:901b:cb15:8045:ada8:cdcd:80fb:40c	128.251.4.12
b51a:901b:cb15:8045:ada8:cdcd:80fb:40d	128.251.4.13
b51a:901b:cb15:8045:ada8:cdcd:80fb:40e	128.251.4.14
b51a:901b:cb15:8045:ada8:cdcd:80fb:40f	128.251.4.15
b51a:901b:cb15:8045:ada8:cdcd:80fb:410	128.251.4.16
b51a:901b:cb15:8045:ada8:cdcd:80fb:411	128.251.4.17
b51a:901b:cb15:8045:ada8:cdcd:80fb:412	128.251.4.18
b51a:901b:cb15:8045:ada8:cdcd:80fb:413	128.251.4.19
b51a:901b:cb15:8045:ada8:cdcd:80fb:414	128.251.4.20
b51a:901b:cb15:8045:ada8:cdcd:80fb:415	128.251.4.21
b51a:901b:cb15:8045:ada8:cdcd:80fb:416	128.251.4.22
b51a:901b:cb15:8045:ada8:cdcd:80fb:417	128.251.4.23
b51a:901b:cb15:8045:ada8:cdcd:80fb:418	128.251.4.24
b51a:901b:cb15:8045:ada8:cdcd:80fb:419	128.251.4.25
b51a:901b:cb15:8045:ada8:cdcd:80fb:41a	128.251.4.26
b51a:901b:cb15:8045:ada8:cdcd:80fb:41b	128.251.4.27
b51a:901b:cb15:8045:ada8:cdcd:80fb:41c	128.251.4.28
b51a:901b:cb15:8045:ada8:cdcd:80fb:41d	128.251.4.29
b51a:901b:cb15:8045:ada8:cdcd:80fb:41e	128.251.4.30
b51a:901b:cb15:8045:ada8:cdcd:80fb:41f	128.251.4.31
b51a:901b:cb15:8045:ada8:cdcd:80fb:420	128.251.4.32
b51a:901b:cb15:8045:ada8:cdcd:80fb:421	128.251.4.33
b51a:901b:cb15:8045:ada8:cdcd:80fb:422	128.251.4.34
b51a:901b:cb15:8045:ada8:cdcd:80fb:423	128.251.4.35
b51a:901b:cb15:8045:ada8:cdcd:80fb:424	128.251.4.36
b51a:901b:cb15:8045:ada8:cdcd:80fb:425	128.251.4.37
b51a:901b:cb15:8045:ada8:cdcd:80fb:426	128.251.4.38
b51a:901b:cb15:8045:ada8:cdcd:80fb:427	128.251.4.39
b51a:901b:cb15:8045:ada8:cdcd:80fb:428	128.251.4.40
b51a:901b:cb15:8045:ada8:cdcd:80fb:429	128.251.4.41
b51a:901b:cb15:8045:ada8:cdcd:80fb:42a	128.251.4.42
b51a:901b:cb15:8045:ada8:cdcd:80fb:42b	128.251.4.43
b51a:901b:cb15:8045:ada8:cdcd:80fb:42c	128.251.4.44
b51a:901b:cb15:8045:ada8:cdcd:80fb:42d	128.251.4.45
b51a:901b:cb15:8045:ada8:cdcd:80fb:42e	128.251.4.46
b51a:901b:cb15:8045:ada8:cdcd:80fb:42f	128.251.4.47
b51a:901b:cb15:8045:ada8:cdcd:80fb:430	128.251.4.48
b51a:901b:cb15:8045:ada8:cdcd:80fb:431	128.251.4.49
b51a:901b:cb15:8045:ada8:cdcd:80fb:432	128.251.4.50
b51a:901b:cb15:8045:ada8:cdcd:80fb:433	128.251.4.51
b51a:901b:cb15:8045:ada8:cdcd:80fb:434	128.251.4.52
b51a:901b:cb15:8045:ada8:cdcd:80fb:435	128.251.4.53
b51a:901b:cb15:8045:ada8:cdcd:80fb:436	128.251.4.54
b51a:901b:cb15:8045:ada8:cdcd:80fb:437	128.251.4.55
b51a:901b:cb15:8045:ada8:cdcd:80fb:438	128.251.4.56
b51a:901b:cb15:8045:ada8:cdcd:80fb:439	128.251.4.57
b51a:901b:cb15:8045:ada8:cdcd:80fb:43a	128.251.4.58
b51a:901b:cb15:8045:ada8:cdcd:80fb:43b	128.251.4.59
b51a:901b:cb15:8045:ada8:cdcd:80fb:43c	128.251.4.60

b51a:901b:cb15:8045:ada8:cdcd:80fb:43d	128.251.4.61
b51a:901b:cb15:8045:ada8:cdcd:80fb:43e	128.251.4.62
b51a:901b:cb15:8045:ada8:cdcd:80fb:43f	128.251.4.63
b51a:901b:cb15:8045:ada8:cdcd:80fb:440	128.251.4.64
b51a:901b:cb15:8045:ada8:cdcd:80fb:441	128.251.4.65
b51a:901b:cb15:8045:ada8:cdcd:80fb:442	128.251.4.66
b51a:901b:cb15:8045:ada8:cdcd:80fb:443	128.251.4.67
b51a:901b:cb15:8045:ada8:cdcd:80fb:444	128.251.4.68
b51a:901b:cb15:8045:ada8:cdcd:80fb:445	128.251.4.69
b51a:901b:cb15:8045:ada8:cdcd:80fb:446	128.251.4.70
b51a:901b:cb15:8045:ada8:cdcd:80fb:447	128.251.4.71
b51a:901b:cb15:8045:ada8:cdcd:80fb:448	128.251.4.72
b51a:901b:cb15:8045:ada8:cdcd:80fb:449	128.251.4.73
b51a:901b:cb15:8045:ada8:cdcd:80fb:44a	128.251.4.74
b51a:901b:cb15:8045:ada8:cdcd:80fb:44b	128.251.4.75
b51a:901b:cb15:8045:ada8:cdcd:80fb:44c	128.251.4.76
b51a:901b:cb15:8045:ada8:cdcd:80fb:44d	128.251.4.77
b51a:901b:cb15:8045:ada8:cdcd:80fb:44e	128.251.4.78
b51a:901b:cb15:8045:ada8:cdcd:80fb:44f	128.251.4.79
b51a:901b:cb15:8045:ada8:cdcd:80fb:450	128.251.4.80
b51a:901b:cb15:8045:ada8:cdcd:80fb:451	128.251.4.81
b51a:901b:cb15:8045:ada8:cdcd:80fb:452	128.251.4.82
b51a:901b:cb15:8045:ada8:cdcd:80fb:453	128.251.4.83
b51a:901b:cb15:8045:ada8:cdcd:80fb:454	128.251.4.84
b51a:901b:cb15:8045:ada8:cdcd:80fb:455	128.251.4.85
b51a:901b:cb15:8045:ada8:cdcd:80fb:456	128.251.4.86
b51a:901b:cb15:8045:ada8:cdcd:80fb:457	128.251.4.87
b51a:901b:cb15:8045:ada8:cdcd:80fb:458	128.251.4.88
b51a:901b:cb15:8045:ada8:cdcd:80fb:459	128.251.4.89
b51a:901b:cb15:8045:ada8:cdcd:80fb:45a	128.251.4.90
b51a:901b:cb15:8045:ada8:cdcd:80fb:45b	128.251.4.91
b51a:901b:cb15:8045:ada8:cdcd:80fb:45c	128.251.4.92
b51a:901b:cb15:8045:ada8:cdcd:80fb:45d	128.251.4.93
b51a:901b:cb15:8045:ada8:cdcd:80fb:45e	128.251.4.94
b51a:901b:cb15:8045:ada8:cdcd:80fb:45f	128.251.4.95
b51a:901b:cb15:8045:ada8:cdcd:80fb:460	128.251.4.96
b51a:901b:cb15:8045:ada8:cdcd:80fb:461	128.251.4.97
b51a:901b:cb15:8045:ada8:cdcd:80fb:462	128.251.4.98
b51a:901b:cb15:8045:ada8:cdcd:80fb:463	128.251.4.99
b51a:901b:cb15:8045:ada8:cdcd:80fb:464	128.251.4.100
b51a:901b:cb15:8045:ada8:cdcd:80fb:465	128.251.4.101
b51a:901b:cb15:8045:ada8:cdcd:80fb:466	128.251.4.102
b51a:901b:cb15:8045:ada8:cdcd:80fb:467	128.251.4.103
b51a:901b:cb15:8045:ada8:cdcd:80fb:468	128.251.4.104
b51a:901b:cb15:8045:ada8:cdcd:80fb:469	128.251.4.105
b51a:901b:cb15:8045:ada8:cdcd:80fb:46a	128.251.4.106
b51a:901b:cb15:8045:ada8:cdcd:80fb:46b	128.251.4.107
b51a:901b:cb15:8045:ada8:cdcd:80fb:46c	128.251.4.108
b51a:901b:cb15:8045:ada8:cdcd:80fb:46d	128.251.4.109
b51a:901b:cb15:8045:ada8:cdcd:80fb:46e	128.251.4.110
b51a:901b:cb15:8045:ada8:cdcd:80fb:46f	128.251.4.111
b51a:901b:cb15:8045:ada8:cdcd:80fb:470	128.251.4.112
b51a:901b:cb15:8045:ada8:cdcd:80fb:471	128.251.4.113
b51a:901b:cb15:8045:ada8:cdcd:80fb:472	128.251.4.114
b51a:901b:cb15:8045:ada8:cdcd:80fb:473	128.251.4.115
b51a:901b:cb15:8045:ada8:cdcd:80fb:474	128.251.4.116
b51a:901b:cb15:8045:ada8:cdcd:80fb:475	128.251.4.117
b51a:901b:cb15:8045:ada8:cdcd:80fb:476	128.251.4.118
b51a:901b:cb15:8045:ada8:cdcd:80fb:477	128.251.4.119
b51a:901b:cb15:8045:ada8:cdcd:80fb:478	128.251.4.120

b51a:901b:cb15:8045:ada8:cdcd:80fb:479	128.251.4.121
b51a:901b:cb15:8045:ada8:cdcd:80fb:47a	128.251.4.122
b51a:901b:cb15:8045:ada8:cdcd:80fb:47b	128.251.4.123
b51a:901b:cb15:8045:ada8:cdcd:80fb:47c	128.251.4.124
b51a:901b:cb15:8045:ada8:cdcd:80fb:47d	128.251.4.125
b51a:901b:cb15:8045:ada8:cdcd:80fb:47e	128.251.4.126
b51a:901b:cb15:8045:ada8:cdcd:80fb:47f	128.251.4.127
b51a:901b:cb15:8045:ada8:cdcd:80fb:480	128.251.4.128
b51a:901b:cb15:8045:ada8:cdcd:80fb:481	128.251.4.129
b51a:901b:cb15:8045:ada8:cdcd:80fb:482	128.251.4.130
b51a:901b:cb15:8045:ada8:cdcd:80fb:483	128.251.4.131
b51a:901b:cb15:8045:ada8:cdcd:80fb:484	128.251.4.132
b51a:901b:cb15:8045:ada8:cdcd:80fb:485	128.251.4.133
b51a:901b:cb15:8045:ada8:cdcd:80fb:486	128.251.4.134
b51a:901b:cb15:8045:ada8:cdcd:80fb:487	128.251.4.135
b51a:901b:cb15:8045:ada8:cdcd:80fb:488	128.251.4.136
b51a:901b:cb15:8045:ada8:cdcd:80fb:489	128.251.4.137
b51a:901b:cb15:8045:ada8:cdcd:80fb:48a	128.251.4.138
b51a:901b:cb15:8045:ada8:cdcd:80fb:48b	128.251.4.139
b51a:901b:cb15:8045:ada8:cdcd:80fb:48c	128.251.4.140
b51a:901b:cb15:8045:ada8:cdcd:80fb:48d	128.251.4.141
b51a:901b:cb15:8045:ada8:cdcd:80fb:48e	128.251.4.142
b51a:901b:cb15:8045:ada8:cdcd:80fb:48f	128.251.4.143
b51a:901b:cb15:8045:ada8:cdcd:80fb:490	128.251.4.144
b51a:901b:cb15:8045:ada8:cdcd:80fb:491	128.251.4.145
b51a:901b:cb15:8045:ada8:cdcd:80fb:492	128.251.4.146
b51a:901b:cb15:8045:ada8:cdcd:80fb:493	128.251.4.147
b51a:901b:cb15:8045:ada8:cdcd:80fb:494	128.251.4.148
b51a:901b:cb15:8045:ada8:cdcd:80fb:495	128.251.4.149
b51a:901b:cb15:8045:ada8:cdcd:80fb:496	128.251.4.150
b51a:901b:cb15:8045:ada8:cdcd:80fb:497	128.251.4.151
b51a:901b:cb15:8045:ada8:cdcd:80fb:498	128.251.4.152
b51a:901b:cb15:8045:ada8:cdcd:80fb:499	128.251.4.153
b51a:901b:cb15:8045:ada8:cdcd:80fb:49a	128.251.4.154
b51a:901b:cb15:8045:ada8:cdcd:80fb:49b	128.251.4.155
b51a:901b:cb15:8045:ada8:cdcd:80fb:49c	128.251.4.156
b51a:901b:cb15:8045:ada8:cdcd:80fb:49d	128.251.4.157
b51a:901b:cb15:8045:ada8:cdcd:80fb:49e	128.251.4.158
b51a:901b:cb15:8045:ada8:cdcd:80fb:49f	128.251.4.159
b51a:901b:cb15:8045:ada8:cdcd:80fb:4a0	128.251.4.160
b51a:901b:cb15:8045:ada8:cdcd:80fb:4a1	128.251.4.161
b51a:901b:cb15:8045:ada8:cdcd:80fb:4a2	128.251.4.162
b51a:901b:cb15:8045:ada8:cdcd:80fb:4a3	128.251.4.163
b51a:901b:cb15:8045:ada8:cdcd:80fb:4a4	128.251.4.164
b51a:901b:cb15:8045:ada8:cdcd:80fb:4a5	128.251.4.165
b51a:901b:cb15:8045:ada8:cdcd:80fb:4a6	128.251.4.166
b51a:901b:cb15:8045:ada8:cdcd:80fb:4a7	128.251.4.167
b51a:901b:cb15:8045:ada8:cdcd:80fb:4a8	128.251.4.168
b51a:901b:cb15:8045:ada8:cdcd:80fb:4a9	128.251.4.169
b51a:901b:cb15:8045:ada8:cdcd:80fb:4aa	128.251.4.170
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ab	128.251.4.171
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ac	128.251.4.172
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ad	128.251.4.173
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ae	128.251.4.174
b51a:901b:cb15:8045:ada8:cdcd:80fb:4af	128.251.4.175
b51a:901b:cb15:8045:ada8:cdcd:80fb:4b0	128.251.4.176
b51a:901b:cb15:8045:ada8:cdcd:80fb:4b1	128.251.4.177
b51a:901b:cb15:8045:ada8:cdcd:80fb:4b2	128.251.4.178
b51a:901b:cb15:8045:ada8:cdcd:80fb:4b3	128.251.4.179
b51a:901b:cb15:8045:ada8:cdcd:80fb:4b4	128.251.4.180

b51a:901b:cb15:8045:ada8:cdcd:80fb:4b5	128.251.4.181
b51a:901b:cb15:8045:ada8:cdcd:80fb:4b6	128.251.4.182
b51a:901b:cb15:8045:ada8:cdcd:80fb:4b7	128.251.4.183
b51a:901b:cb15:8045:ada8:cdcd:80fb:4b8	128.251.4.184
b51a:901b:cb15:8045:ada8:cdcd:80fb:4b9	128.251.4.185
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ba	128.251.4.186
b51a:901b:cb15:8045:ada8:cdcd:80fb:4bb	128.251.4.187
b51a:901b:cb15:8045:ada8:cdcd:80fb:4bc	128.251.4.188
b51a:901b:cb15:8045:ada8:cdcd:80fb:4bd	128.251.4.189
b51a:901b:cb15:8045:ada8:cdcd:80fb:4be	128.251.4.190
b51a:901b:cb15:8045:ada8:cdcd:80fb:4bf	128.251.4.191
b51a:901b:cb15:8045:ada8:cdcd:80fb:4c0	128.251.4.192
b51a:901b:cb15:8045:ada8:cdcd:80fb:4c1	128.251.4.193
b51a:901b:cb15:8045:ada8:cdcd:80fb:4c2	128.251.4.194
b51a:901b:cb15:8045:ada8:cdcd:80fb:4c3	128.251.4.195
b51a:901b:cb15:8045:ada8:cdcd:80fb:4c4	128.251.4.196
b51a:901b:cb15:8045:ada8:cdcd:80fb:4c5	128.251.4.197
b51a:901b:cb15:8045:ada8:cdcd:80fb:4c6	128.251.4.198
b51a:901b:cb15:8045:ada8:cdcd:80fb:4c7	128.251.4.199
b51a:901b:cb15:8045:ada8:cdcd:80fb:4c8	128.251.4.200
b51a:901b:cb15:8045:ada8:cdcd:80fb:4c9	128.251.4.201
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ca	128.251.4.202
b51a:901b:cb15:8045:ada8:cdcd:80fb:4cb	128.251.4.203
b51a:901b:cb15:8045:ada8:cdcd:80fb:4cc	128.251.4.204
b51a:901b:cb15:8045:ada8:cdcd:80fb:4cd	128.251.4.205
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ce	128.251.4.206
b51a:901b:cb15:8045:ada8:cdcd:80fb:4cf	128.251.4.207
b51a:901b:cb15:8045:ada8:cdcd:80fb:4d0	128.251.4.208
b51a:901b:cb15:8045:ada8:cdcd:80fb:4d1	128.251.4.209
b51a:901b:cb15:8045:ada8:cdcd:80fb:4d2	128.251.4.210
b51a:901b:cb15:8045:ada8:cdcd:80fb:4d3	128.251.4.211
b51a:901b:cb15:8045:ada8:cdcd:80fb:4d4	128.251.4.212
b51a:901b:cb15:8045:ada8:cdcd:80fb:4d5	128.251.4.213
b51a:901b:cb15:8045:ada8:cdcd:80fb:4d6	128.251.4.214
b51a:901b:cb15:8045:ada8:cdcd:80fb:4d7	128.251.4.215
b51a:901b:cb15:8045:ada8:cdcd:80fb:4d8	128.251.4.216
b51a:901b:cb15:8045:ada8:cdcd:80fb:4d9	128.251.4.217
b51a:901b:cb15:8045:ada8:cdcd:80fb:4da	128.251.4.218
b51a:901b:cb15:8045:ada8:cdcd:80fb:4db	128.251.4.219
b51a:901b:cb15:8045:ada8:cdcd:80fb:4dc	128.251.4.220
b51a:901b:cb15:8045:ada8:cdcd:80fb:4dd	128.251.4.221
b51a:901b:cb15:8045:ada8:cdcd:80fb:4de	128.251.4.222
b51a:901b:cb15:8045:ada8:cdcd:80fb:4df	128.251.4.223
b51a:901b:cb15:8045:ada8:cdcd:80fb:4e0	128.251.4.224
b51a:901b:cb15:8045:ada8:cdcd:80fb:4e1	128.251.4.225
b51a:901b:cb15:8045:ada8:cdcd:80fb:4e2	128.251.4.226
b51a:901b:cb15:8045:ada8:cdcd:80fb:4e3	128.251.4.227
b51a:901b:cb15:8045:ada8:cdcd:80fb:4e4	128.251.4.228
b51a:901b:cb15:8045:ada8:cdcd:80fb:4e5	128.251.4.229
b51a:901b:cb15:8045:ada8:cdcd:80fb:4e6	128.251.4.230
b51a:901b:cb15:8045:ada8:cdcd:80fb:4e7	128.251.4.231
b51a:901b:cb15:8045:ada8:cdcd:80fb:4e8	128.251.4.232
b51a:901b:cb15:8045:ada8:cdcd:80fb:4e9	128.251.4.233
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ea	128.251.4.234
b51a:901b:cb15:8045:ada8:cdcd:80fb:4eb	128.251.4.235
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ec	128.251.4.236
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ed	128.251.4.237
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ee	128.251.4.238
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ef	128.251.4.239
b51a:901b:cb15:8045:ada8:cdcd:80fb:4f0	128.251.4.240
b51a:901b:cb15:8045:ada8:cdcd:80fb:4f1	128.251.4.241
b51a:901b:cb15:8045:ada8:cdcd:80fb:4f2	128.251.4.242
b51a:901b:cb15:8045:ada8:cdcd:80fb:4f3	128.251.4.243
b51a:901b:cb15:8045:ada8:cdcd:80fb:4f4	128.251.4.244
b51a:901b:cb15:8045:ada8:cdcd:80fb:4f5	128.251.4.245
b51a:901b:cb15:8045:ada8:cdcd:80fb:4f6	128.251.4.246
b51a:901b:cb15:8045:ada8:cdcd:80fb:4f7	128.251.4.247
b51a:901b:cb15:8045:ada8:cdcd:80fb:4f8	128.251.4.248
b51a:901b:cb15:8045:ada8:cdcd:80fb:4f9	128.251.4.249
b51a:901b:cb15:8045:ada8:cdcd:80fb:4fa	128.251.4.250
b51a:901b:cb15:8045:ada8:cdcd:80fb:4fb	128.251.4.251
b51a:901b:cb15:8045:ada8:cdcd:80fb:4fc	128.251.4.252
b51a:901b:cb15:8045:ada8:cdcd:80fb:4fd	128.251.4.253
b51a:901b:cb15:8045:ada8:cdcd:80fb:4fe	128.251.4.254
b51a:901b:cb15:8045:ada8:cdcd:80fb:4ff	128.251.4.255

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.