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
cb15:901b:d157:4024:ada9:b2bc:e0f1:f201 224.241.242.1
cb15:901b:d157:4024:ada9:b2bc:e0f1:f202 224.241.242.2
cb15:901b:d157:4024:ada9:b2bc:e0f1:f203 224.241.242.3
cb15:901b:d157:4024:ada9:b2bc:e0f1:f204 224.241.242.4
cb15:901b:d157:4024:ada9:b2bc:e0f1:f205 224.241.242.5
cb15:901b:d157:4024:ada9:b2bc:e0f1:f206 224.241.242.6
cb15:901b:d157:4024:ada9:b2bc:e0f1:f207 224.241.242.7
cb15:901b:d157:4024:ada9:b2bc:e0f1:f208 224.241.242.8
cb15:901b:d157:4024:ada9:b2bc:e0f1:f209 224.241.242.9
cb15:901b:d157:4024:ada9:b2bc:e0f1:f20a 224.241.242.10
cb15:901b:d157:4024:ada9:b2bc:e0f1:f20b 224.241.242.11
cb15:901b:d157:4024:ada9:b2bc:e0f1:f20c 224.241.242.12
cb15:901b:d157:4024:ada9:b2bc:e0f1:f20d 224.241.242.13
cb15:901b:d157:4024:ada9:b2bc:e0f1:f20e 224.241.242.14
cb15:901b:d157:4024:ada9:b2bc:e0f1:f20f 224.241.242.15
cb15:901b:d157:4024:ada9:b2bc:e0f1:f210 224.241.242.16
cb15:901b:d157:4024:ada9:b2bc:e0f1:f211 224.241.242.17
cb15:901b:d157:4024:ada9:b2bc:e0f1:f212 224.241.242.18
cb15:901b:d157:4024:ada9:b2bc:e0f1:f213 224.241.242.19
cb15:901b:d157:4024:ada9:b2bc:e0f1:f214 224.241.242.20
cb15:901b:d157:4024:ada9:b2bc:e0f1:f215 224.241.242.21
cb15:901b:d157:4024:ada9:b2bc:e0f1:f216 224.241.242.22
cb15:901b:d157:4024:ada9:b2bc:e0f1:f217 224.241.242.23
cb15:901b:d157:4024:ada9:b2bc:e0f1:f218 224.241.242.24
cb15:901b:d157:4024:ada9:b2bc:e0f1:f219 224.241.242.25
cb15:901b:d157:4024:ada9:b2bc:e0f1:f21a 224.241.242.26
cb15:901b:d157:4024:ada9:b2bc:e0f1:f21b 224.241.242.27
cb15:901b:d157:4024:ada9:b2bc:e0f1:f21c 224.241.242.28
cb15:901b:d157:4024:ada9:b2bc:e0f1:f21d 224.241.242.29
cb15:901b:d157:4024:ada9:b2bc:e0f1:f21e 224.241.242.30
cb15:901b:d157:4024:ada9:b2bc:e0f1:f21f 224.241.242.31
cb15:901b:d157:4024:ada9:b2bc:e0f1:f220 224.241.242.32
cb15:901b:d157:4024:ada9:b2bc:e0f1:f221 224.241.242.33
cb15:901b:d157:4024:ada9:b2bc:e0f1:f222 224.241.242.34
cb15:901b:d157:4024:ada9:b2bc:e0f1:f223 224.241.242.35
cb15:901b:d157:4024:ada9:b2bc:e0f1:f224 224.241.242.36
cb15:901b:d157:4024:ada9:b2bc:e0f1:f225 224.241.242.37
cb15:901b:d157:4024:ada9:b2bc:e0f1:f226 224.241.242.38
cb15:901b:d157:4024:ada9:b2bc:e0f1:f227 224.241.242.39
cb15:901b:d157:4024:ada9:b2bc:e0f1:f228 224.241.242.40
cb15:901b:d157:4024:ada9:b2bc:e0f1:f229 224.241.242.41
cb15:901b:d157:4024:ada9:b2bc:e0f1:f22a 224.241.242.42
cb15:901b:d157:4024:ada9:b2bc:e0f1:f22b 224.241.242.43
cb15:901b:d157:4024:ada9:b2bc:e0f1:f22c 224.241.242.44
cb15:901b:d157:4024:ada9:b2bc:e0f1:f22d 224.241.242.45
cb15:901b:d157:4024:ada9:b2bc:e0f1:f22e 224.241.242.46
cb15:901b:d157:4024:ada9:b2bc:e0f1:f22f 224.241.242.47
cb15:901b:d157:4024:ada9:b2bc:e0f1:f230 224.241.242.48
cb15:901b:d157:4024:ada9:b2bc:e0f1:f231 224.241.242.49
cb15:901b:d157:4024:ada9:b2bc:e0f1:f232 224.241.242.50
cb15:901b:d157:4024:ada9:b2bc:e0f1:f233 224.241.242.51
cb15:901b:d157:4024:ada9:b2bc:e0f1:f234 224.241.242.52
cb15:901b:d157:4024:ada9:b2bc:e0f1:f235 224.241.242.53
cb15:901b:d157:4024:ada9:b2bc:e0f1:f236 224.241.242.54
cb15:901b:d157:4024:ada9:b2bc:e0f1:f237 224.241.242.55
cb15:901b:d157:4024:ada9:b2bc:e0f1:f238 224.241.242.56
cb15:901b:d157:4024:ada9:b2bc:e0f1:f239 224.241.242.57
cb15:901b:d157:4024:ada9:b2bc:e0f1:f23a 224.241.242.58
cb15:901b:d157:4024:ada9:b2bc:e0f1:f23b 224.241.242.59
cb15:901b:d157:4024:ada9:b2bc:e0f1:f23c 224.241.242.60


cb15:901b:d157:4024:ada9:b2bc:e0f1:f23d 224.241.242.61
cb15:901b:d157:4024:ada9:b2bc:e0f1:f23e 224.241.242.62
cb15:901b:d157:4024:ada9:b2bc:e0f1:f23f 224.241.242.63
cb15:901b:d157:4024:ada9:b2bc:e0f1:f240 224.241.242.64
cb15:901b:d157:4024:ada9:b2bc:e0f1:f241 224.241.242.65
cb15:901b:d157:4024:ada9:b2bc:e0f1:f242 224.241.242.66
cb15:901b:d157:4024:ada9:b2bc:e0f1:f243 224.241.242.67
cb15:901b:d157:4024:ada9:b2bc:e0f1:f244 224.241.242.68
cb15:901b:d157:4024:ada9:b2bc:e0f1:f245 224.241.242.69
cb15:901b:d157:4024:ada9:b2bc:e0f1:f246 224.241.242.70
cb15:901b:d157:4024:ada9:b2bc:e0f1:f247 224.241.242.71
cb15:901b:d157:4024:ada9:b2bc:e0f1:f248 224.241.242.72
cb15:901b:d157:4024:ada9:b2bc:e0f1:f249 224.241.242.73
cb15:901b:d157:4024:ada9:b2bc:e0f1:f24a 224.241.242.74
cb15:901b:d157:4024:ada9:b2bc:e0f1:f24b 224.241.242.75
cb15:901b:d157:4024:ada9:b2bc:e0f1:f24c 224.241.242.76
cb15:901b:d157:4024:ada9:b2bc:e0f1:f24d 224.241.242.77
cb15:901b:d157:4024:ada9:b2bc:e0f1:f24e 224.241.242.78
cb15:901b:d157:4024:ada9:b2bc:e0f1:f24f 224.241.242.79
cb15:901b:d157:4024:ada9:b2bc:e0f1:f250 224.241.242.80
cb15:901b:d157:4024:ada9:b2bc:e0f1:f251 224.241.242.81
cb15:901b:d157:4024:ada9:b2bc:e0f1:f252 224.241.242.82
cb15:901b:d157:4024:ada9:b2bc:e0f1:f253 224.241.242.83
cb15:901b:d157:4024:ada9:b2bc:e0f1:f254 224.241.242.84
cb15:901b:d157:4024:ada9:b2bc:e0f1:f255 224.241.242.85
cb15:901b:d157:4024:ada9:b2bc:e0f1:f256 224.241.242.86
cb15:901b:d157:4024:ada9:b2bc:e0f1:f257 224.241.242.87
cb15:901b:d157:4024:ada9:b2bc:e0f1:f258 224.241.242.88
cb15:901b:d157:4024:ada9:b2bc:e0f1:f259 224.241.242.89
cb15:901b:d157:4024:ada9:b2bc:e0f1:f25a 224.241.242.90
cb15:901b:d157:4024:ada9:b2bc:e0f1:f25b 224.241.242.91
cb15:901b:d157:4024:ada9:b2bc:e0f1:f25c 224.241.242.92
cb15:901b:d157:4024:ada9:b2bc:e0f1:f25d 224.241.242.93
cb15:901b:d157:4024:ada9:b2bc:e0f1:f25e 224.241.242.94
cb15:901b:d157:4024:ada9:b2bc:e0f1:f25f 224.241.242.95
cb15:901b:d157:4024:ada9:b2bc:e0f1:f260 224.241.242.96
cb15:901b:d157:4024:ada9:b2bc:e0f1:f261 224.241.242.97
cb15:901b:d157:4024:ada9:b2bc:e0f1:f262 224.241.242.98
cb15:901b:d157:4024:ada9:b2bc:e0f1:f263 224.241.242.99
cb15:901b:d157:4024:ada9:b2bc:e0f1:f264 224.241.242.100
cb15:901b:d157:4024:ada9:b2bc:e0f1:f265 224.241.242.101
cb15:901b:d157:4024:ada9:b2bc:e0f1:f266 224.241.242.102
cb15:901b:d157:4024:ada9:b2bc:e0f1:f267 224.241.242.103
cb15:901b:d157:4024:ada9:b2bc:e0f1:f268 224.241.242.104
cb15:901b:d157:4024:ada9:b2bc:e0f1:f269 224.241.242.105
cb15:901b:d157:4024:ada9:b2bc:e0f1:f26a 224.241.242.106
cb15:901b:d157:4024:ada9:b2bc:e0f1:f26b 224.241.242.107
cb15:901b:d157:4024:ada9:b2bc:e0f1:f26c 224.241.242.108
cb15:901b:d157:4024:ada9:b2bc:e0f1:f26d 224.241.242.109
cb15:901b:d157:4024:ada9:b2bc:e0f1:f26e 224.241.242.110
cb15:901b:d157:4024:ada9:b2bc:e0f1:f26f 224.241.242.111
cb15:901b:d157:4024:ada9:b2bc:e0f1:f270 224.241.242.112
cb15:901b:d157:4024:ada9:b2bc:e0f1:f271 224.241.242.113
cb15:901b:d157:4024:ada9:b2bc:e0f1:f272 224.241.242.114
cb15:901b:d157:4024:ada9:b2bc:e0f1:f273 224.241.242.115
cb15:901b:d157:4024:ada9:b2bc:e0f1:f274 224.241.242.116
cb15:901b:d157:4024:ada9:b2bc:e0f1:f275 224.241.242.117
cb15:901b:d157:4024:ada9:b2bc:e0f1:f276 224.241.242.118
cb15:901b:d157:4024:ada9:b2bc:e0f1:f277 224.241.242.119
cb15:901b:d157:4024:ada9:b2bc:e0f1:f278 224.241.242.120


cb15:901b:d157:4024:ada9:b2bc:e0f1:f279 224.241.242.121
cb15:901b:d157:4024:ada9:b2bc:e0f1:f27a 224.241.242.122
cb15:901b:d157:4024:ada9:b2bc:e0f1:f27b 224.241.242.123
cb15:901b:d157:4024:ada9:b2bc:e0f1:f27c 224.241.242.124
cb15:901b:d157:4024:ada9:b2bc:e0f1:f27d 224.241.242.125
cb15:901b:d157:4024:ada9:b2bc:e0f1:f27e 224.241.242.126
cb15:901b:d157:4024:ada9:b2bc:e0f1:f27f 224.241.242.127
cb15:901b:d157:4024:ada9:b2bc:e0f1:f280 224.241.242.128
cb15:901b:d157:4024:ada9:b2bc:e0f1:f281 224.241.242.129
cb15:901b:d157:4024:ada9:b2bc:e0f1:f282 224.241.242.130
cb15:901b:d157:4024:ada9:b2bc:e0f1:f283 224.241.242.131
cb15:901b:d157:4024:ada9:b2bc:e0f1:f284 224.241.242.132
cb15:901b:d157:4024:ada9:b2bc:e0f1:f285 224.241.242.133
cb15:901b:d157:4024:ada9:b2bc:e0f1:f286 224.241.242.134
cb15:901b:d157:4024:ada9:b2bc:e0f1:f287 224.241.242.135
cb15:901b:d157:4024:ada9:b2bc:e0f1:f288 224.241.242.136
cb15:901b:d157:4024:ada9:b2bc:e0f1:f289 224.241.242.137
cb15:901b:d157:4024:ada9:b2bc:e0f1:f28a 224.241.242.138
cb15:901b:d157:4024:ada9:b2bc:e0f1:f28b 224.241.242.139
cb15:901b:d157:4024:ada9:b2bc:e0f1:f28c 224.241.242.140
cb15:901b:d157:4024:ada9:b2bc:e0f1:f28d 224.241.242.141
cb15:901b:d157:4024:ada9:b2bc:e0f1:f28e 224.241.242.142
cb15:901b:d157:4024:ada9:b2bc:e0f1:f28f 224.241.242.143
cb15:901b:d157:4024:ada9:b2bc:e0f1:f290 224.241.242.144
cb15:901b:d157:4024:ada9:b2bc:e0f1:f291 224.241.242.145
cb15:901b:d157:4024:ada9:b2bc:e0f1:f292 224.241.242.146
cb15:901b:d157:4024:ada9:b2bc:e0f1:f293 224.241.242.147
cb15:901b:d157:4024:ada9:b2bc:e0f1:f294 224.241.242.148
cb15:901b:d157:4024:ada9:b2bc:e0f1:f295 224.241.242.149
cb15:901b:d157:4024:ada9:b2bc:e0f1:f296 224.241.242.150
cb15:901b:d157:4024:ada9:b2bc:e0f1:f297 224.241.242.151
cb15:901b:d157:4024:ada9:b2bc:e0f1:f298 224.241.242.152
cb15:901b:d157:4024:ada9:b2bc:e0f1:f299 224.241.242.153
cb15:901b:d157:4024:ada9:b2bc:e0f1:f29a 224.241.242.154
cb15:901b:d157:4024:ada9:b2bc:e0f1:f29b 224.241.242.155
cb15:901b:d157:4024:ada9:b2bc:e0f1:f29c 224.241.242.156
cb15:901b:d157:4024:ada9:b2bc:e0f1:f29d 224.241.242.157
cb15:901b:d157:4024:ada9:b2bc:e0f1:f29e 224.241.242.158
cb15:901b:d157:4024:ada9:b2bc:e0f1:f29f 224.241.242.159
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2a0 224.241.242.160
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2a1 224.241.242.161
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2a2 224.241.242.162
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2a3 224.241.242.163
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2a4 224.241.242.164
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2a5 224.241.242.165
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2a6 224.241.242.166
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2a7 224.241.242.167
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2a8 224.241.242.168
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2a9 224.241.242.169
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2aa 224.241.242.170
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ab 224.241.242.171
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ac 224.241.242.172
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ad 224.241.242.173
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ae 224.241.242.174
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2af 224.241.242.175
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2b0 224.241.242.176
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2b1 224.241.242.177
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2b2 224.241.242.178
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2b3 224.241.242.179
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2b4 224.241.242.180


cb15:901b:d157:4024:ada9:b2bc:e0f1:f2b5 224.241.242.181
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2b6 224.241.242.182
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2b7 224.241.242.183
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2b8 224.241.242.184
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2b9 224.241.242.185
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ba 224.241.242.186
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2bb 224.241.242.187
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2bc 224.241.242.188
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2bd 224.241.242.189
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2be 224.241.242.190
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2bf 224.241.242.191
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2c0 224.241.242.192
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2c1 224.241.242.193
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2c2 224.241.242.194
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2c3 224.241.242.195
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2c4 224.241.242.196
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2c5 224.241.242.197
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2c6 224.241.242.198
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2c7 224.241.242.199
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2c8 224.241.242.200
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2c9 224.241.242.201
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ca 224.241.242.202
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2cb 224.241.242.203
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2cc 224.241.242.204
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2cd 224.241.242.205
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ce 224.241.242.206
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2cf 224.241.242.207
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2d0 224.241.242.208
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2d1 224.241.242.209
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2d2 224.241.242.210
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2d3 224.241.242.211
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2d4 224.241.242.212
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2d5 224.241.242.213
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2d6 224.241.242.214
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2d7 224.241.242.215
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2d8 224.241.242.216
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2d9 224.241.242.217
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2da 224.241.242.218
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2db 224.241.242.219
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2dc 224.241.242.220
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2dd 224.241.242.221
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2de 224.241.242.222
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2df 224.241.242.223
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2e0 224.241.242.224
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2e1 224.241.242.225
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2e2 224.241.242.226
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2e3 224.241.242.227
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2e4 224.241.242.228
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2e5 224.241.242.229
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2e6 224.241.242.230
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2e7 224.241.242.231
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2e8 224.241.242.232
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2e9 224.241.242.233
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ea 224.241.242.234
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2eb 224.241.242.235
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ec 224.241.242.236
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ed 224.241.242.237
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ee 224.241.242.238
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ef 224.241.242.239
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2f0 224.241.242.240
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2f1 224.241.242.241
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2f2 224.241.242.242
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2f3 224.241.242.243
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2f4 224.241.242.244
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2f5 224.241.242.245
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2f6 224.241.242.246
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2f7 224.241.242.247
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2f8 224.241.242.248
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2f9 224.241.242.249
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2fa 224.241.242.250
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2fb 224.241.242.251
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2fc 224.241.242.252
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2fd 224.241.242.253
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2fe 224.241.242.254
cb15:901b:d157:4024:ada9:b2bc:e0f1:f2ff 224.241.242.255

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.