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:2801	128.251.40.1
b51a:901b:cb15:8045:ada8:cdcd:80fb:2802	128.251.40.2
b51a:901b:cb15:8045:ada8:cdcd:80fb:2803	128.251.40.3
b51a:901b:cb15:8045:ada8:cdcd:80fb:2804	128.251.40.4
b51a:901b:cb15:8045:ada8:cdcd:80fb:2805	128.251.40.5
b51a:901b:cb15:8045:ada8:cdcd:80fb:2806	128.251.40.6
b51a:901b:cb15:8045:ada8:cdcd:80fb:2807	128.251.40.7
b51a:901b:cb15:8045:ada8:cdcd:80fb:2808	128.251.40.8
b51a:901b:cb15:8045:ada8:cdcd:80fb:2809	128.251.40.9
b51a:901b:cb15:8045:ada8:cdcd:80fb:280a	128.251.40.10
b51a:901b:cb15:8045:ada8:cdcd:80fb:280b	128.251.40.11
b51a:901b:cb15:8045:ada8:cdcd:80fb:280c	128.251.40.12
b51a:901b:cb15:8045:ada8:cdcd:80fb:280d	128.251.40.13
b51a:901b:cb15:8045:ada8:cdcd:80fb:280e	128.251.40.14
b51a:901b:cb15:8045:ada8:cdcd:80fb:280f	128.251.40.15
b51a:901b:cb15:8045:ada8:cdcd:80fb:2810	128.251.40.16
b51a:901b:cb15:8045:ada8:cdcd:80fb:2811	128.251.40.17
b51a:901b:cb15:8045:ada8:cdcd:80fb:2812	128.251.40.18
b51a:901b:cb15:8045:ada8:cdcd:80fb:2813	128.251.40.19
b51a:901b:cb15:8045:ada8:cdcd:80fb:2814	128.251.40.20
b51a:901b:cb15:8045:ada8:cdcd:80fb:2815	128.251.40.21
b51a:901b:cb15:8045:ada8:cdcd:80fb:2816	128.251.40.22
b51a:901b:cb15:8045:ada8:cdcd:80fb:2817	128.251.40.23
b51a:901b:cb15:8045:ada8:cdcd:80fb:2818	128.251.40.24
b51a:901b:cb15:8045:ada8:cdcd:80fb:2819	128.251.40.25
b51a:901b:cb15:8045:ada8:cdcd:80fb:281a	128.251.40.26
b51a:901b:cb15:8045:ada8:cdcd:80fb:281b	128.251.40.27
b51a:901b:cb15:8045:ada8:cdcd:80fb:281c	128.251.40.28
b51a:901b:cb15:8045:ada8:cdcd:80fb:281d	128.251.40.29
b51a:901b:cb15:8045:ada8:cdcd:80fb:281e	128.251.40.30
b51a:901b:cb15:8045:ada8:cdcd:80fb:281f	128.251.40.31
b51a:901b:cb15:8045:ada8:cdcd:80fb:2820	128.251.40.32
b51a:901b:cb15:8045:ada8:cdcd:80fb:2821	128.251.40.33
b51a:901b:cb15:8045:ada8:cdcd:80fb:2822	128.251.40.34
b51a:901b:cb15:8045:ada8:cdcd:80fb:2823	128.251.40.35
b51a:901b:cb15:8045:ada8:cdcd:80fb:2824	128.251.40.36
b51a:901b:cb15:8045:ada8:cdcd:80fb:2825	128.251.40.37
b51a:901b:cb15:8045:ada8:cdcd:80fb:2826	128.251.40.38
b51a:901b:cb15:8045:ada8:cdcd:80fb:2827	128.251.40.39
b51a:901b:cb15:8045:ada8:cdcd:80fb:2828	128.251.40.40
b51a:901b:cb15:8045:ada8:cdcd:80fb:2829	128.251.40.41
b51a:901b:cb15:8045:ada8:cdcd:80fb:282a	128.251.40.42
b51a:901b:cb15:8045:ada8:cdcd:80fb:282b	128.251.40.43
b51a:901b:cb15:8045:ada8:cdcd:80fb:282c	128.251.40.44
b51a:901b:cb15:8045:ada8:cdcd:80fb:282d	128.251.40.45
b51a:901b:cb15:8045:ada8:cdcd:80fb:282e	128.251.40.46
b51a:901b:cb15:8045:ada8:cdcd:80fb:282f	128.251.40.47
b51a:901b:cb15:8045:ada8:cdcd:80fb:2830	128.251.40.48
b51a:901b:cb15:8045:ada8:cdcd:80fb:2831	128.251.40.49
b51a:901b:cb15:8045:ada8:cdcd:80fb:2832	128.251.40.50
b51a:901b:cb15:8045:ada8:cdcd:80fb:2833	128.251.40.51
b51a:901b:cb15:8045:ada8:cdcd:80fb:2834	128.251.40.52
b51a:901b:cb15:8045:ada8:cdcd:80fb:2835	128.251.40.53
b51a:901b:cb15:8045:ada8:cdcd:80fb:2836	128.251.40.54
b51a:901b:cb15:8045:ada8:cdcd:80fb:2837	128.251.40.55
b51a:901b:cb15:8045:ada8:cdcd:80fb:2838	128.251.40.56
b51a:901b:cb15:8045:ada8:cdcd:80fb:2839	128.251.40.57
b51a:901b:cb15:8045:ada8:cdcd:80fb:283a	128.251.40.58
b51a:901b:cb15:8045:ada8:cdcd:80fb:283b	128.251.40.59
b51a:901b:cb15:8045:ada8:cdcd:80fb:283c	128.251.40.60

b51a:901b:cb15:8045:ada8:cdcd:80fb:283d	128.251.40.61
b51a:901b:cb15:8045:ada8:cdcd:80fb:283e	128.251.40.62
b51a:901b:cb15:8045:ada8:cdcd:80fb:283f	128.251.40.63
b51a:901b:cb15:8045:ada8:cdcd:80fb:2840	128.251.40.64
b51a:901b:cb15:8045:ada8:cdcd:80fb:2841	128.251.40.65
b51a:901b:cb15:8045:ada8:cdcd:80fb:2842	128.251.40.66
b51a:901b:cb15:8045:ada8:cdcd:80fb:2843	128.251.40.67
b51a:901b:cb15:8045:ada8:cdcd:80fb:2844	128.251.40.68
b51a:901b:cb15:8045:ada8:cdcd:80fb:2845	128.251.40.69
b51a:901b:cb15:8045:ada8:cdcd:80fb:2846	128.251.40.70
b51a:901b:cb15:8045:ada8:cdcd:80fb:2847	128.251.40.71
b51a:901b:cb15:8045:ada8:cdcd:80fb:2848	128.251.40.72
b51a:901b:cb15:8045:ada8:cdcd:80fb:2849	128.251.40.73
b51a:901b:cb15:8045:ada8:cdcd:80fb:284a	128.251.40.74
b51a:901b:cb15:8045:ada8:cdcd:80fb:284b	128.251.40.75
b51a:901b:cb15:8045:ada8:cdcd:80fb:284c	128.251.40.76
b51a:901b:cb15:8045:ada8:cdcd:80fb:284d	128.251.40.77
b51a:901b:cb15:8045:ada8:cdcd:80fb:284e	128.251.40.78
b51a:901b:cb15:8045:ada8:cdcd:80fb:284f	128.251.40.79
b51a:901b:cb15:8045:ada8:cdcd:80fb:2850	128.251.40.80
b51a:901b:cb15:8045:ada8:cdcd:80fb:2851	128.251.40.81
b51a:901b:cb15:8045:ada8:cdcd:80fb:2852	128.251.40.82
b51a:901b:cb15:8045:ada8:cdcd:80fb:2853	128.251.40.83
b51a:901b:cb15:8045:ada8:cdcd:80fb:2854	128.251.40.84
b51a:901b:cb15:8045:ada8:cdcd:80fb:2855	128.251.40.85
b51a:901b:cb15:8045:ada8:cdcd:80fb:2856	128.251.40.86
b51a:901b:cb15:8045:ada8:cdcd:80fb:2857	128.251.40.87
b51a:901b:cb15:8045:ada8:cdcd:80fb:2858	128.251.40.88
b51a:901b:cb15:8045:ada8:cdcd:80fb:2859	128.251.40.89
b51a:901b:cb15:8045:ada8:cdcd:80fb:285a	128.251.40.90
b51a:901b:cb15:8045:ada8:cdcd:80fb:285b	128.251.40.91
b51a:901b:cb15:8045:ada8:cdcd:80fb:285c	128.251.40.92
b51a:901b:cb15:8045:ada8:cdcd:80fb:285d	128.251.40.93
b51a:901b:cb15:8045:ada8:cdcd:80fb:285e	128.251.40.94
b51a:901b:cb15:8045:ada8:cdcd:80fb:285f	128.251.40.95
b51a:901b:cb15:8045:ada8:cdcd:80fb:2860	128.251.40.96
b51a:901b:cb15:8045:ada8:cdcd:80fb:2861	128.251.40.97
b51a:901b:cb15:8045:ada8:cdcd:80fb:2862	128.251.40.98
b51a:901b:cb15:8045:ada8:cdcd:80fb:2863	128.251.40.99
b51a:901b:cb15:8045:ada8:cdcd:80fb:2864	128.251.40.100
b51a:901b:cb15:8045:ada8:cdcd:80fb:2865	128.251.40.101
b51a:901b:cb15:8045:ada8:cdcd:80fb:2866	128.251.40.102
b51a:901b:cb15:8045:ada8:cdcd:80fb:2867	128.251.40.103
b51a:901b:cb15:8045:ada8:cdcd:80fb:2868	128.251.40.104
b51a:901b:cb15:8045:ada8:cdcd:80fb:2869	128.251.40.105
b51a:901b:cb15:8045:ada8:cdcd:80fb:286a	128.251.40.106
b51a:901b:cb15:8045:ada8:cdcd:80fb:286b	128.251.40.107
b51a:901b:cb15:8045:ada8:cdcd:80fb:286c	128.251.40.108
b51a:901b:cb15:8045:ada8:cdcd:80fb:286d	128.251.40.109
b51a:901b:cb15:8045:ada8:cdcd:80fb:286e	128.251.40.110
b51a:901b:cb15:8045:ada8:cdcd:80fb:286f	128.251.40.111
b51a:901b:cb15:8045:ada8:cdcd:80fb:2870	128.251.40.112
b51a:901b:cb15:8045:ada8:cdcd:80fb:2871	128.251.40.113
b51a:901b:cb15:8045:ada8:cdcd:80fb:2872	128.251.40.114
b51a:901b:cb15:8045:ada8:cdcd:80fb:2873	128.251.40.115
b51a:901b:cb15:8045:ada8:cdcd:80fb:2874	128.251.40.116
b51a:901b:cb15:8045:ada8:cdcd:80fb:2875	128.251.40.117
b51a:901b:cb15:8045:ada8:cdcd:80fb:2876	128.251.40.118
b51a:901b:cb15:8045:ada8:cdcd:80fb:2877	128.251.40.119
b51a:901b:cb15:8045:ada8:cdcd:80fb:2878	128.251.40.120

b51a:901b:cb15:8045:ada8:cdcd:80fb:2879	128.251.40.121
b51a:901b:cb15:8045:ada8:cdcd:80fb:287a	128.251.40.122
b51a:901b:cb15:8045:ada8:cdcd:80fb:287b	128.251.40.123
b51a:901b:cb15:8045:ada8:cdcd:80fb:287c	128.251.40.124
b51a:901b:cb15:8045:ada8:cdcd:80fb:287d	128.251.40.125
b51a:901b:cb15:8045:ada8:cdcd:80fb:287e	128.251.40.126
b51a:901b:cb15:8045:ada8:cdcd:80fb:287f	128.251.40.127
b51a:901b:cb15:8045:ada8:cdcd:80fb:2880	128.251.40.128
b51a:901b:cb15:8045:ada8:cdcd:80fb:2881	128.251.40.129
b51a:901b:cb15:8045:ada8:cdcd:80fb:2882	128.251.40.130
b51a:901b:cb15:8045:ada8:cdcd:80fb:2883	128.251.40.131
b51a:901b:cb15:8045:ada8:cdcd:80fb:2884	128.251.40.132
b51a:901b:cb15:8045:ada8:cdcd:80fb:2885	128.251.40.133
b51a:901b:cb15:8045:ada8:cdcd:80fb:2886	128.251.40.134
b51a:901b:cb15:8045:ada8:cdcd:80fb:2887	128.251.40.135
b51a:901b:cb15:8045:ada8:cdcd:80fb:2888	128.251.40.136
b51a:901b:cb15:8045:ada8:cdcd:80fb:2889	128.251.40.137
b51a:901b:cb15:8045:ada8:cdcd:80fb:288a	128.251.40.138
b51a:901b:cb15:8045:ada8:cdcd:80fb:288b	128.251.40.139
b51a:901b:cb15:8045:ada8:cdcd:80fb:288c	128.251.40.140
b51a:901b:cb15:8045:ada8:cdcd:80fb:288d	128.251.40.141
b51a:901b:cb15:8045:ada8:cdcd:80fb:288e	128.251.40.142
b51a:901b:cb15:8045:ada8:cdcd:80fb:288f	128.251.40.143
b51a:901b:cb15:8045:ada8:cdcd:80fb:2890	128.251.40.144
b51a:901b:cb15:8045:ada8:cdcd:80fb:2891	128.251.40.145
b51a:901b:cb15:8045:ada8:cdcd:80fb:2892	128.251.40.146
b51a:901b:cb15:8045:ada8:cdcd:80fb:2893	128.251.40.147
b51a:901b:cb15:8045:ada8:cdcd:80fb:2894	128.251.40.148
b51a:901b:cb15:8045:ada8:cdcd:80fb:2895	128.251.40.149
b51a:901b:cb15:8045:ada8:cdcd:80fb:2896	128.251.40.150
b51a:901b:cb15:8045:ada8:cdcd:80fb:2897	128.251.40.151
b51a:901b:cb15:8045:ada8:cdcd:80fb:2898	128.251.40.152
b51a:901b:cb15:8045:ada8:cdcd:80fb:2899	128.251.40.153
b51a:901b:cb15:8045:ada8:cdcd:80fb:289a	128.251.40.154
b51a:901b:cb15:8045:ada8:cdcd:80fb:289b	128.251.40.155
b51a:901b:cb15:8045:ada8:cdcd:80fb:289c	128.251.40.156
b51a:901b:cb15:8045:ada8:cdcd:80fb:289d	128.251.40.157
b51a:901b:cb15:8045:ada8:cdcd:80fb:289e	128.251.40.158
b51a:901b:cb15:8045:ada8:cdcd:80fb:289f	128.251.40.159
b51a:901b:cb15:8045:ada8:cdcd:80fb:28a0	128.251.40.160
b51a:901b:cb15:8045:ada8:cdcd:80fb:28a1	128.251.40.161
b51a:901b:cb15:8045:ada8:cdcd:80fb:28a2	128.251.40.162
b51a:901b:cb15:8045:ada8:cdcd:80fb:28a3	128.251.40.163
b51a:901b:cb15:8045:ada8:cdcd:80fb:28a4	128.251.40.164
b51a:901b:cb15:8045:ada8:cdcd:80fb:28a5	128.251.40.165
b51a:901b:cb15:8045:ada8:cdcd:80fb:28a6	128.251.40.166
b51a:901b:cb15:8045:ada8:cdcd:80fb:28a7	128.251.40.167
b51a:901b:cb15:8045:ada8:cdcd:80fb:28a8	128.251.40.168
b51a:901b:cb15:8045:ada8:cdcd:80fb:28a9	128.251.40.169
b51a:901b:cb15:8045:ada8:cdcd:80fb:28aa	128.251.40.170
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ab	128.251.40.171
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ac	128.251.40.172
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ad	128.251.40.173
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ae	128.251.40.174
b51a:901b:cb15:8045:ada8:cdcd:80fb:28af	128.251.40.175
b51a:901b:cb15:8045:ada8:cdcd:80fb:28b0	128.251.40.176
b51a:901b:cb15:8045:ada8:cdcd:80fb:28b1	128.251.40.177
b51a:901b:cb15:8045:ada8:cdcd:80fb:28b2	128.251.40.178
b51a:901b:cb15:8045:ada8:cdcd:80fb:28b3	128.251.40.179
b51a:901b:cb15:8045:ada8:cdcd:80fb:28b4	128.251.40.180

b51a:901b:cb15:8045:ada8:cdcd:80fb:28b5	128.251.40.181
b51a:901b:cb15:8045:ada8:cdcd:80fb:28b6	128.251.40.182
b51a:901b:cb15:8045:ada8:cdcd:80fb:28b7	128.251.40.183
b51a:901b:cb15:8045:ada8:cdcd:80fb:28b8	128.251.40.184
b51a:901b:cb15:8045:ada8:cdcd:80fb:28b9	128.251.40.185
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ba	128.251.40.186
b51a:901b:cb15:8045:ada8:cdcd:80fb:28bb	128.251.40.187
b51a:901b:cb15:8045:ada8:cdcd:80fb:28bc	128.251.40.188
b51a:901b:cb15:8045:ada8:cdcd:80fb:28bd	128.251.40.189
b51a:901b:cb15:8045:ada8:cdcd:80fb:28be	128.251.40.190
b51a:901b:cb15:8045:ada8:cdcd:80fb:28bf	128.251.40.191
b51a:901b:cb15:8045:ada8:cdcd:80fb:28c0	128.251.40.192
b51a:901b:cb15:8045:ada8:cdcd:80fb:28c1	128.251.40.193
b51a:901b:cb15:8045:ada8:cdcd:80fb:28c2	128.251.40.194
b51a:901b:cb15:8045:ada8:cdcd:80fb:28c3	128.251.40.195
b51a:901b:cb15:8045:ada8:cdcd:80fb:28c4	128.251.40.196
b51a:901b:cb15:8045:ada8:cdcd:80fb:28c5	128.251.40.197
b51a:901b:cb15:8045:ada8:cdcd:80fb:28c6	128.251.40.198
b51a:901b:cb15:8045:ada8:cdcd:80fb:28c7	128.251.40.199
b51a:901b:cb15:8045:ada8:cdcd:80fb:28c8	128.251.40.200
b51a:901b:cb15:8045:ada8:cdcd:80fb:28c9	128.251.40.201
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ca	128.251.40.202
b51a:901b:cb15:8045:ada8:cdcd:80fb:28cb	128.251.40.203
b51a:901b:cb15:8045:ada8:cdcd:80fb:28cc	128.251.40.204
b51a:901b:cb15:8045:ada8:cdcd:80fb:28cd	128.251.40.205
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ce	128.251.40.206
b51a:901b:cb15:8045:ada8:cdcd:80fb:28cf	128.251.40.207
b51a:901b:cb15:8045:ada8:cdcd:80fb:28d0	128.251.40.208
b51a:901b:cb15:8045:ada8:cdcd:80fb:28d1	128.251.40.209
b51a:901b:cb15:8045:ada8:cdcd:80fb:28d2	128.251.40.210
b51a:901b:cb15:8045:ada8:cdcd:80fb:28d3	128.251.40.211
b51a:901b:cb15:8045:ada8:cdcd:80fb:28d4	128.251.40.212
b51a:901b:cb15:8045:ada8:cdcd:80fb:28d5	128.251.40.213
b51a:901b:cb15:8045:ada8:cdcd:80fb:28d6	128.251.40.214
b51a:901b:cb15:8045:ada8:cdcd:80fb:28d7	128.251.40.215
b51a:901b:cb15:8045:ada8:cdcd:80fb:28d8	128.251.40.216
b51a:901b:cb15:8045:ada8:cdcd:80fb:28d9	128.251.40.217
b51a:901b:cb15:8045:ada8:cdcd:80fb:28da	128.251.40.218
b51a:901b:cb15:8045:ada8:cdcd:80fb:28db	128.251.40.219
b51a:901b:cb15:8045:ada8:cdcd:80fb:28dc	128.251.40.220
b51a:901b:cb15:8045:ada8:cdcd:80fb:28dd	128.251.40.221
b51a:901b:cb15:8045:ada8:cdcd:80fb:28de	128.251.40.222
b51a:901b:cb15:8045:ada8:cdcd:80fb:28df	128.251.40.223
b51a:901b:cb15:8045:ada8:cdcd:80fb:28e0	128.251.40.224
b51a:901b:cb15:8045:ada8:cdcd:80fb:28e1	128.251.40.225
b51a:901b:cb15:8045:ada8:cdcd:80fb:28e2	128.251.40.226
b51a:901b:cb15:8045:ada8:cdcd:80fb:28e3	128.251.40.227
b51a:901b:cb15:8045:ada8:cdcd:80fb:28e4	128.251.40.228
b51a:901b:cb15:8045:ada8:cdcd:80fb:28e5	128.251.40.229
b51a:901b:cb15:8045:ada8:cdcd:80fb:28e6	128.251.40.230
b51a:901b:cb15:8045:ada8:cdcd:80fb:28e7	128.251.40.231
b51a:901b:cb15:8045:ada8:cdcd:80fb:28e8	128.251.40.232
b51a:901b:cb15:8045:ada8:cdcd:80fb:28e9	128.251.40.233
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ea	128.251.40.234
b51a:901b:cb15:8045:ada8:cdcd:80fb:28eb	128.251.40.235
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ec	128.251.40.236
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ed	128.251.40.237
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ee	128.251.40.238
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ef	128.251.40.239
b51a:901b:cb15:8045:ada8:cdcd:80fb:28f0	128.251.40.240
b51a:901b:cb15:8045:ada8:cdcd:80fb:28f1	128.251.40.241
b51a:901b:cb15:8045:ada8:cdcd:80fb:28f2	128.251.40.242
b51a:901b:cb15:8045:ada8:cdcd:80fb:28f3	128.251.40.243
b51a:901b:cb15:8045:ada8:cdcd:80fb:28f4	128.251.40.244
b51a:901b:cb15:8045:ada8:cdcd:80fb:28f5	128.251.40.245
b51a:901b:cb15:8045:ada8:cdcd:80fb:28f6	128.251.40.246
b51a:901b:cb15:8045:ada8:cdcd:80fb:28f7	128.251.40.247
b51a:901b:cb15:8045:ada8:cdcd:80fb:28f8	128.251.40.248
b51a:901b:cb15:8045:ada8:cdcd:80fb:28f9	128.251.40.249
b51a:901b:cb15:8045:ada8:cdcd:80fb:28fa	128.251.40.250
b51a:901b:cb15:8045:ada8:cdcd:80fb:28fb	128.251.40.251
b51a:901b:cb15:8045:ada8:cdcd:80fb:28fc	128.251.40.252
b51a:901b:cb15:8045:ada8:cdcd:80fb:28fd	128.251.40.253
b51a:901b:cb15:8045:ada8:cdcd:80fb:28fe	128.251.40.254
b51a:901b:cb15:8045:ada8:cdcd:80fb:28ff	128.251.40.255

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.