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:901b:8082:40de:3157:b51f:1901	181.31.25.1
b51a:901b:901b:8082:40de:3157:b51f:1902	181.31.25.2
b51a:901b:901b:8082:40de:3157:b51f:1903	181.31.25.3
b51a:901b:901b:8082:40de:3157:b51f:1904	181.31.25.4
b51a:901b:901b:8082:40de:3157:b51f:1905	181.31.25.5
b51a:901b:901b:8082:40de:3157:b51f:1906	181.31.25.6
b51a:901b:901b:8082:40de:3157:b51f:1907	181.31.25.7
b51a:901b:901b:8082:40de:3157:b51f:1908	181.31.25.8
b51a:901b:901b:8082:40de:3157:b51f:1909	181.31.25.9
b51a:901b:901b:8082:40de:3157:b51f:190a	181.31.25.10
b51a:901b:901b:8082:40de:3157:b51f:190b	181.31.25.11
b51a:901b:901b:8082:40de:3157:b51f:190c	181.31.25.12
b51a:901b:901b:8082:40de:3157:b51f:190d	181.31.25.13
b51a:901b:901b:8082:40de:3157:b51f:190e	181.31.25.14
b51a:901b:901b:8082:40de:3157:b51f:190f	181.31.25.15
b51a:901b:901b:8082:40de:3157:b51f:1910	181.31.25.16
b51a:901b:901b:8082:40de:3157:b51f:1911	181.31.25.17
b51a:901b:901b:8082:40de:3157:b51f:1912	181.31.25.18
b51a:901b:901b:8082:40de:3157:b51f:1913	181.31.25.19
b51a:901b:901b:8082:40de:3157:b51f:1914	181.31.25.20
b51a:901b:901b:8082:40de:3157:b51f:1915	181.31.25.21
b51a:901b:901b:8082:40de:3157:b51f:1916	181.31.25.22
b51a:901b:901b:8082:40de:3157:b51f:1917	181.31.25.23
b51a:901b:901b:8082:40de:3157:b51f:1918	181.31.25.24
b51a:901b:901b:8082:40de:3157:b51f:1919	181.31.25.25
b51a:901b:901b:8082:40de:3157:b51f:191a	181.31.25.26
b51a:901b:901b:8082:40de:3157:b51f:191b	181.31.25.27
b51a:901b:901b:8082:40de:3157:b51f:191c	181.31.25.28
b51a:901b:901b:8082:40de:3157:b51f:191d	181.31.25.29
b51a:901b:901b:8082:40de:3157:b51f:191e	181.31.25.30
b51a:901b:901b:8082:40de:3157:b51f:191f	181.31.25.31
b51a:901b:901b:8082:40de:3157:b51f:1920	181.31.25.32
b51a:901b:901b:8082:40de:3157:b51f:1921	181.31.25.33
b51a:901b:901b:8082:40de:3157:b51f:1922	181.31.25.34
b51a:901b:901b:8082:40de:3157:b51f:1923	181.31.25.35
b51a:901b:901b:8082:40de:3157:b51f:1924	181.31.25.36
b51a:901b:901b:8082:40de:3157:b51f:1925	181.31.25.37
b51a:901b:901b:8082:40de:3157:b51f:1926	181.31.25.38
b51a:901b:901b:8082:40de:3157:b51f:1927	181.31.25.39
b51a:901b:901b:8082:40de:3157:b51f:1928	181.31.25.40
b51a:901b:901b:8082:40de:3157:b51f:1929	181.31.25.41
b51a:901b:901b:8082:40de:3157:b51f:192a	181.31.25.42
b51a:901b:901b:8082:40de:3157:b51f:192b	181.31.25.43
b51a:901b:901b:8082:40de:3157:b51f:192c	181.31.25.44
b51a:901b:901b:8082:40de:3157:b51f:192d	181.31.25.45
b51a:901b:901b:8082:40de:3157:b51f:192e	181.31.25.46
b51a:901b:901b:8082:40de:3157:b51f:192f	181.31.25.47
b51a:901b:901b:8082:40de:3157:b51f:1930	181.31.25.48
b51a:901b:901b:8082:40de:3157:b51f:1931	181.31.25.49
b51a:901b:901b:8082:40de:3157:b51f:1932	181.31.25.50
b51a:901b:901b:8082:40de:3157:b51f:1933	181.31.25.51
b51a:901b:901b:8082:40de:3157:b51f:1934	181.31.25.52
b51a:901b:901b:8082:40de:3157:b51f:1935	181.31.25.53
b51a:901b:901b:8082:40de:3157:b51f:1936	181.31.25.54
b51a:901b:901b:8082:40de:3157:b51f:1937	181.31.25.55
b51a:901b:901b:8082:40de:3157:b51f:1938	181.31.25.56
b51a:901b:901b:8082:40de:3157:b51f:1939	181.31.25.57
b51a:901b:901b:8082:40de:3157:b51f:193a	181.31.25.58
b51a:901b:901b:8082:40de:3157:b51f:193b	181.31.25.59
b51a:901b:901b:8082:40de:3157:b51f:193c	181.31.25.60

b51a:901b:901b:8082:40de:3157:b51f:193d	181.31.25.61
b51a:901b:901b:8082:40de:3157:b51f:193e	181.31.25.62
b51a:901b:901b:8082:40de:3157:b51f:193f	181.31.25.63
b51a:901b:901b:8082:40de:3157:b51f:1940	181.31.25.64
b51a:901b:901b:8082:40de:3157:b51f:1941	181.31.25.65
b51a:901b:901b:8082:40de:3157:b51f:1942	181.31.25.66
b51a:901b:901b:8082:40de:3157:b51f:1943	181.31.25.67
b51a:901b:901b:8082:40de:3157:b51f:1944	181.31.25.68
b51a:901b:901b:8082:40de:3157:b51f:1945	181.31.25.69
b51a:901b:901b:8082:40de:3157:b51f:1946	181.31.25.70
b51a:901b:901b:8082:40de:3157:b51f:1947	181.31.25.71
b51a:901b:901b:8082:40de:3157:b51f:1948	181.31.25.72
b51a:901b:901b:8082:40de:3157:b51f:1949	181.31.25.73
b51a:901b:901b:8082:40de:3157:b51f:194a	181.31.25.74
b51a:901b:901b:8082:40de:3157:b51f:194b	181.31.25.75
b51a:901b:901b:8082:40de:3157:b51f:194c	181.31.25.76
b51a:901b:901b:8082:40de:3157:b51f:194d	181.31.25.77
b51a:901b:901b:8082:40de:3157:b51f:194e	181.31.25.78
b51a:901b:901b:8082:40de:3157:b51f:194f	181.31.25.79
b51a:901b:901b:8082:40de:3157:b51f:1950	181.31.25.80
b51a:901b:901b:8082:40de:3157:b51f:1951	181.31.25.81
b51a:901b:901b:8082:40de:3157:b51f:1952	181.31.25.82
b51a:901b:901b:8082:40de:3157:b51f:1953	181.31.25.83
b51a:901b:901b:8082:40de:3157:b51f:1954	181.31.25.84
b51a:901b:901b:8082:40de:3157:b51f:1955	181.31.25.85
b51a:901b:901b:8082:40de:3157:b51f:1956	181.31.25.86
b51a:901b:901b:8082:40de:3157:b51f:1957	181.31.25.87
b51a:901b:901b:8082:40de:3157:b51f:1958	181.31.25.88
b51a:901b:901b:8082:40de:3157:b51f:1959	181.31.25.89
b51a:901b:901b:8082:40de:3157:b51f:195a	181.31.25.90
b51a:901b:901b:8082:40de:3157:b51f:195b	181.31.25.91
b51a:901b:901b:8082:40de:3157:b51f:195c	181.31.25.92
b51a:901b:901b:8082:40de:3157:b51f:195d	181.31.25.93
b51a:901b:901b:8082:40de:3157:b51f:195e	181.31.25.94
b51a:901b:901b:8082:40de:3157:b51f:195f	181.31.25.95
b51a:901b:901b:8082:40de:3157:b51f:1960	181.31.25.96
b51a:901b:901b:8082:40de:3157:b51f:1961	181.31.25.97
b51a:901b:901b:8082:40de:3157:b51f:1962	181.31.25.98
b51a:901b:901b:8082:40de:3157:b51f:1963	181.31.25.99
b51a:901b:901b:8082:40de:3157:b51f:1964	181.31.25.100
b51a:901b:901b:8082:40de:3157:b51f:1965	181.31.25.101
b51a:901b:901b:8082:40de:3157:b51f:1966	181.31.25.102
b51a:901b:901b:8082:40de:3157:b51f:1967	181.31.25.103
b51a:901b:901b:8082:40de:3157:b51f:1968	181.31.25.104
b51a:901b:901b:8082:40de:3157:b51f:1969	181.31.25.105
b51a:901b:901b:8082:40de:3157:b51f:196a	181.31.25.106
b51a:901b:901b:8082:40de:3157:b51f:196b	181.31.25.107
b51a:901b:901b:8082:40de:3157:b51f:196c	181.31.25.108
b51a:901b:901b:8082:40de:3157:b51f:196d	181.31.25.109
b51a:901b:901b:8082:40de:3157:b51f:196e	181.31.25.110
b51a:901b:901b:8082:40de:3157:b51f:196f	181.31.25.111
b51a:901b:901b:8082:40de:3157:b51f:1970	181.31.25.112
b51a:901b:901b:8082:40de:3157:b51f:1971	181.31.25.113
b51a:901b:901b:8082:40de:3157:b51f:1972	181.31.25.114
b51a:901b:901b:8082:40de:3157:b51f:1973	181.31.25.115
b51a:901b:901b:8082:40de:3157:b51f:1974	181.31.25.116
b51a:901b:901b:8082:40de:3157:b51f:1975	181.31.25.117
b51a:901b:901b:8082:40de:3157:b51f:1976	181.31.25.118
b51a:901b:901b:8082:40de:3157:b51f:1977	181.31.25.119
b51a:901b:901b:8082:40de:3157:b51f:1978	181.31.25.120

b51a:901b:901b:8082:40de:3157:b51f:1979	181.31.25.121
b51a:901b:901b:8082:40de:3157:b51f:197a	181.31.25.122
b51a:901b:901b:8082:40de:3157:b51f:197b	181.31.25.123
b51a:901b:901b:8082:40de:3157:b51f:197c	181.31.25.124
b51a:901b:901b:8082:40de:3157:b51f:197d	181.31.25.125
b51a:901b:901b:8082:40de:3157:b51f:197e	181.31.25.126
b51a:901b:901b:8082:40de:3157:b51f:197f	181.31.25.127
b51a:901b:901b:8082:40de:3157:b51f:1980	181.31.25.128
b51a:901b:901b:8082:40de:3157:b51f:1981	181.31.25.129
b51a:901b:901b:8082:40de:3157:b51f:1982	181.31.25.130
b51a:901b:901b:8082:40de:3157:b51f:1983	181.31.25.131
b51a:901b:901b:8082:40de:3157:b51f:1984	181.31.25.132
b51a:901b:901b:8082:40de:3157:b51f:1985	181.31.25.133
b51a:901b:901b:8082:40de:3157:b51f:1986	181.31.25.134
b51a:901b:901b:8082:40de:3157:b51f:1987	181.31.25.135
b51a:901b:901b:8082:40de:3157:b51f:1988	181.31.25.136
b51a:901b:901b:8082:40de:3157:b51f:1989	181.31.25.137
b51a:901b:901b:8082:40de:3157:b51f:198a	181.31.25.138
b51a:901b:901b:8082:40de:3157:b51f:198b	181.31.25.139
b51a:901b:901b:8082:40de:3157:b51f:198c	181.31.25.140
b51a:901b:901b:8082:40de:3157:b51f:198d	181.31.25.141
b51a:901b:901b:8082:40de:3157:b51f:198e	181.31.25.142
b51a:901b:901b:8082:40de:3157:b51f:198f	181.31.25.143
b51a:901b:901b:8082:40de:3157:b51f:1990	181.31.25.144
b51a:901b:901b:8082:40de:3157:b51f:1991	181.31.25.145
b51a:901b:901b:8082:40de:3157:b51f:1992	181.31.25.146
b51a:901b:901b:8082:40de:3157:b51f:1993	181.31.25.147
b51a:901b:901b:8082:40de:3157:b51f:1994	181.31.25.148
b51a:901b:901b:8082:40de:3157:b51f:1995	181.31.25.149
b51a:901b:901b:8082:40de:3157:b51f:1996	181.31.25.150
b51a:901b:901b:8082:40de:3157:b51f:1997	181.31.25.151
b51a:901b:901b:8082:40de:3157:b51f:1998	181.31.25.152
b51a:901b:901b:8082:40de:3157:b51f:1999	181.31.25.153
b51a:901b:901b:8082:40de:3157:b51f:199a	181.31.25.154
b51a:901b:901b:8082:40de:3157:b51f:199b	181.31.25.155
b51a:901b:901b:8082:40de:3157:b51f:199c	181.31.25.156
b51a:901b:901b:8082:40de:3157:b51f:199d	181.31.25.157
b51a:901b:901b:8082:40de:3157:b51f:199e	181.31.25.158
b51a:901b:901b:8082:40de:3157:b51f:199f	181.31.25.159
b51a:901b:901b:8082:40de:3157:b51f:19a0	181.31.25.160
b51a:901b:901b:8082:40de:3157:b51f:19a1	181.31.25.161
b51a:901b:901b:8082:40de:3157:b51f:19a2	181.31.25.162
b51a:901b:901b:8082:40de:3157:b51f:19a3	181.31.25.163
b51a:901b:901b:8082:40de:3157:b51f:19a4	181.31.25.164
b51a:901b:901b:8082:40de:3157:b51f:19a5	181.31.25.165
b51a:901b:901b:8082:40de:3157:b51f:19a6	181.31.25.166
b51a:901b:901b:8082:40de:3157:b51f:19a7	181.31.25.167
b51a:901b:901b:8082:40de:3157:b51f:19a8	181.31.25.168
b51a:901b:901b:8082:40de:3157:b51f:19a9	181.31.25.169
b51a:901b:901b:8082:40de:3157:b51f:19aa	181.31.25.170
b51a:901b:901b:8082:40de:3157:b51f:19ab	181.31.25.171
b51a:901b:901b:8082:40de:3157:b51f:19ac	181.31.25.172
b51a:901b:901b:8082:40de:3157:b51f:19ad	181.31.25.173
b51a:901b:901b:8082:40de:3157:b51f:19ae	181.31.25.174
b51a:901b:901b:8082:40de:3157:b51f:19af	181.31.25.175
b51a:901b:901b:8082:40de:3157:b51f:19b0	181.31.25.176
b51a:901b:901b:8082:40de:3157:b51f:19b1	181.31.25.177
b51a:901b:901b:8082:40de:3157:b51f:19b2	181.31.25.178
b51a:901b:901b:8082:40de:3157:b51f:19b3	181.31.25.179
b51a:901b:901b:8082:40de:3157:b51f:19b4	181.31.25.180

b51a:901b:901b:8082:40de:3157:b51f:19b5	181.31.25.181
b51a:901b:901b:8082:40de:3157:b51f:19b6	181.31.25.182
b51a:901b:901b:8082:40de:3157:b51f:19b7	181.31.25.183
b51a:901b:901b:8082:40de:3157:b51f:19b8	181.31.25.184
b51a:901b:901b:8082:40de:3157:b51f:19b9	181.31.25.185
b51a:901b:901b:8082:40de:3157:b51f:19ba	181.31.25.186
b51a:901b:901b:8082:40de:3157:b51f:19bb	181.31.25.187
b51a:901b:901b:8082:40de:3157:b51f:19bc	181.31.25.188
b51a:901b:901b:8082:40de:3157:b51f:19bd	181.31.25.189
b51a:901b:901b:8082:40de:3157:b51f:19be	181.31.25.190
b51a:901b:901b:8082:40de:3157:b51f:19bf	181.31.25.191
b51a:901b:901b:8082:40de:3157:b51f:19c0	181.31.25.192
b51a:901b:901b:8082:40de:3157:b51f:19c1	181.31.25.193
b51a:901b:901b:8082:40de:3157:b51f:19c2	181.31.25.194
b51a:901b:901b:8082:40de:3157:b51f:19c3	181.31.25.195
b51a:901b:901b:8082:40de:3157:b51f:19c4	181.31.25.196
b51a:901b:901b:8082:40de:3157:b51f:19c5	181.31.25.197
b51a:901b:901b:8082:40de:3157:b51f:19c6	181.31.25.198
b51a:901b:901b:8082:40de:3157:b51f:19c7	181.31.25.199
b51a:901b:901b:8082:40de:3157:b51f:19c8	181.31.25.200
b51a:901b:901b:8082:40de:3157:b51f:19c9	181.31.25.201
b51a:901b:901b:8082:40de:3157:b51f:19ca	181.31.25.202
b51a:901b:901b:8082:40de:3157:b51f:19cb	181.31.25.203
b51a:901b:901b:8082:40de:3157:b51f:19cc	181.31.25.204
b51a:901b:901b:8082:40de:3157:b51f:19cd	181.31.25.205
b51a:901b:901b:8082:40de:3157:b51f:19ce	181.31.25.206
b51a:901b:901b:8082:40de:3157:b51f:19cf	181.31.25.207
b51a:901b:901b:8082:40de:3157:b51f:19d0	181.31.25.208
b51a:901b:901b:8082:40de:3157:b51f:19d1	181.31.25.209
b51a:901b:901b:8082:40de:3157:b51f:19d2	181.31.25.210
b51a:901b:901b:8082:40de:3157:b51f:19d3	181.31.25.211
b51a:901b:901b:8082:40de:3157:b51f:19d4	181.31.25.212
b51a:901b:901b:8082:40de:3157:b51f:19d5	181.31.25.213
b51a:901b:901b:8082:40de:3157:b51f:19d6	181.31.25.214
b51a:901b:901b:8082:40de:3157:b51f:19d7	181.31.25.215
b51a:901b:901b:8082:40de:3157:b51f:19d8	181.31.25.216
b51a:901b:901b:8082:40de:3157:b51f:19d9	181.31.25.217
b51a:901b:901b:8082:40de:3157:b51f:19da	181.31.25.218
b51a:901b:901b:8082:40de:3157:b51f:19db	181.31.25.219
b51a:901b:901b:8082:40de:3157:b51f:19dc	181.31.25.220
b51a:901b:901b:8082:40de:3157:b51f:19dd	181.31.25.221
b51a:901b:901b:8082:40de:3157:b51f:19de	181.31.25.222
b51a:901b:901b:8082:40de:3157:b51f:19df	181.31.25.223
b51a:901b:901b:8082:40de:3157:b51f:19e0	181.31.25.224
b51a:901b:901b:8082:40de:3157:b51f:19e1	181.31.25.225
b51a:901b:901b:8082:40de:3157:b51f:19e2	181.31.25.226
b51a:901b:901b:8082:40de:3157:b51f:19e3	181.31.25.227
b51a:901b:901b:8082:40de:3157:b51f:19e4	181.31.25.228
b51a:901b:901b:8082:40de:3157:b51f:19e5	181.31.25.229
b51a:901b:901b:8082:40de:3157:b51f:19e6	181.31.25.230
b51a:901b:901b:8082:40de:3157:b51f:19e7	181.31.25.231
b51a:901b:901b:8082:40de:3157:b51f:19e8	181.31.25.232
b51a:901b:901b:8082:40de:3157:b51f:19e9	181.31.25.233
b51a:901b:901b:8082:40de:3157:b51f:19ea	181.31.25.234
b51a:901b:901b:8082:40de:3157:b51f:19eb	181.31.25.235
b51a:901b:901b:8082:40de:3157:b51f:19ec	181.31.25.236
b51a:901b:901b:8082:40de:3157:b51f:19ed	181.31.25.237
b51a:901b:901b:8082:40de:3157:b51f:19ee	181.31.25.238
b51a:901b:901b:8082:40de:3157:b51f:19ef	181.31.25.239
b51a:901b:901b:8082:40de:3157:b51f:19f0	181.31.25.240
b51a:901b:901b:8082:40de:3157:b51f:19f1	181.31.25.241
b51a:901b:901b:8082:40de:3157:b51f:19f2	181.31.25.242
b51a:901b:901b:8082:40de:3157:b51f:19f3	181.31.25.243
b51a:901b:901b:8082:40de:3157:b51f:19f4	181.31.25.244
b51a:901b:901b:8082:40de:3157:b51f:19f5	181.31.25.245
b51a:901b:901b:8082:40de:3157:b51f:19f6	181.31.25.246
b51a:901b:901b:8082:40de:3157:b51f:19f7	181.31.25.247
b51a:901b:901b:8082:40de:3157:b51f:19f8	181.31.25.248
b51a:901b:901b:8082:40de:3157:b51f:19f9	181.31.25.249
b51a:901b:901b:8082:40de:3157:b51f:19fa	181.31.25.250
b51a:901b:901b:8082:40de:3157:b51f:19fb	181.31.25.251
b51a:901b:901b:8082:40de:3157:b51f:19fc	181.31.25.252
b51a:901b:901b:8082:40de:3157:b51f:19fd	181.31.25.253
b51a:901b:901b:8082:40de:3157:b51f:19fe	181.31.25.254
b51a:901b:901b:8082:40de:3157:b51f:19ff	181.31.25.255

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.