Find IP IPv4 Network/Subnet and its host address ranges

What is an IPv4 IP address its network and host address ranges?

An IPv4 IP address is an address used in order to uniquely identify a device on an IP network. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask. The 32 binary bits are broken into four octets (1 octet = 8 bits). Each octet is converted to decimal and separated by a period (dot).

How to Subnet IPv4? Its simple answer is that subnetting is the process of taking a network and splitting it into smaller networks, known as subnets. It's used to free up more public IPv4 addresses and segment networks for security and easier management.
Following are the ranges of IPv4 subnet/network address and their host addresses.

IPv4 AddressIPv6 Address
157.127.66.1 0:0:0:0:0:ffff:9d7f:4201
157.127.66.2 0:0:0:0:0:ffff:9d7f:4202
157.127.66.3 0:0:0:0:0:ffff:9d7f:4203
157.127.66.4 0:0:0:0:0:ffff:9d7f:4204
157.127.66.5 0:0:0:0:0:ffff:9d7f:4205
157.127.66.6 0:0:0:0:0:ffff:9d7f:4206
157.127.66.7 0:0:0:0:0:ffff:9d7f:4207
157.127.66.8 0:0:0:0:0:ffff:9d7f:4208
157.127.66.9 0:0:0:0:0:ffff:9d7f:4209
157.127.66.10 0:0:0:0:0:ffff:9d7f:420a
157.127.66.11 0:0:0:0:0:ffff:9d7f:420b
157.127.66.12 0:0:0:0:0:ffff:9d7f:420c
157.127.66.13 0:0:0:0:0:ffff:9d7f:420d
157.127.66.14 0:0:0:0:0:ffff:9d7f:420e
157.127.66.15 0:0:0:0:0:ffff:9d7f:420f
157.127.66.16 0:0:0:0:0:ffff:9d7f:4210
157.127.66.17 0:0:0:0:0:ffff:9d7f:4211
157.127.66.18 0:0:0:0:0:ffff:9d7f:4212
157.127.66.19 0:0:0:0:0:ffff:9d7f:4213
157.127.66.20 0:0:0:0:0:ffff:9d7f:4214
157.127.66.21 0:0:0:0:0:ffff:9d7f:4215
157.127.66.22 0:0:0:0:0:ffff:9d7f:4216
157.127.66.23 0:0:0:0:0:ffff:9d7f:4217
157.127.66.24 0:0:0:0:0:ffff:9d7f:4218
157.127.66.25 0:0:0:0:0:ffff:9d7f:4219
157.127.66.26 0:0:0:0:0:ffff:9d7f:421a
157.127.66.27 0:0:0:0:0:ffff:9d7f:421b
157.127.66.28 0:0:0:0:0:ffff:9d7f:421c
157.127.66.29 0:0:0:0:0:ffff:9d7f:421d
157.127.66.30 0:0:0:0:0:ffff:9d7f:421e
157.127.66.31 0:0:0:0:0:ffff:9d7f:421f
157.127.66.32 0:0:0:0:0:ffff:9d7f:4220
157.127.66.33 0:0:0:0:0:ffff:9d7f:4221
157.127.66.34 0:0:0:0:0:ffff:9d7f:4222
157.127.66.35 0:0:0:0:0:ffff:9d7f:4223
157.127.66.36 0:0:0:0:0:ffff:9d7f:4224
157.127.66.37 0:0:0:0:0:ffff:9d7f:4225
157.127.66.38 0:0:0:0:0:ffff:9d7f:4226
157.127.66.39 0:0:0:0:0:ffff:9d7f:4227
157.127.66.40 0:0:0:0:0:ffff:9d7f:4228
157.127.66.41 0:0:0:0:0:ffff:9d7f:4229
157.127.66.42 0:0:0:0:0:ffff:9d7f:422a
157.127.66.43 0:0:0:0:0:ffff:9d7f:422b
157.127.66.44 0:0:0:0:0:ffff:9d7f:422c
157.127.66.45 0:0:0:0:0:ffff:9d7f:422d
157.127.66.46 0:0:0:0:0:ffff:9d7f:422e
157.127.66.47 0:0:0:0:0:ffff:9d7f:422f
157.127.66.48 0:0:0:0:0:ffff:9d7f:4230
157.127.66.49 0:0:0:0:0:ffff:9d7f:4231
157.127.66.50 0:0:0:0:0:ffff:9d7f:4232
157.127.66.51 0:0:0:0:0:ffff:9d7f:4233
157.127.66.52 0:0:0:0:0:ffff:9d7f:4234
157.127.66.53 0:0:0:0:0:ffff:9d7f:4235
157.127.66.54 0:0:0:0:0:ffff:9d7f:4236
157.127.66.55 0:0:0:0:0:ffff:9d7f:4237
157.127.66.56 0:0:0:0:0:ffff:9d7f:4238
157.127.66.57 0:0:0:0:0:ffff:9d7f:4239
157.127.66.58 0:0:0:0:0:ffff:9d7f:423a
157.127.66.59 0:0:0:0:0:ffff:9d7f:423b
157.127.66.60 0:0:0:0:0:ffff:9d7f:423c


157.127.66.61 0:0:0:0:0:ffff:9d7f:423d
157.127.66.62 0:0:0:0:0:ffff:9d7f:423e
157.127.66.63 0:0:0:0:0:ffff:9d7f:423f
157.127.66.64 0:0:0:0:0:ffff:9d7f:4240
157.127.66.65 0:0:0:0:0:ffff:9d7f:4241
157.127.66.66 0:0:0:0:0:ffff:9d7f:4242
157.127.66.67 0:0:0:0:0:ffff:9d7f:4243
157.127.66.68 0:0:0:0:0:ffff:9d7f:4244
157.127.66.69 0:0:0:0:0:ffff:9d7f:4245
157.127.66.70 0:0:0:0:0:ffff:9d7f:4246
157.127.66.71 0:0:0:0:0:ffff:9d7f:4247
157.127.66.72 0:0:0:0:0:ffff:9d7f:4248
157.127.66.73 0:0:0:0:0:ffff:9d7f:4249
157.127.66.74 0:0:0:0:0:ffff:9d7f:424a
157.127.66.75 0:0:0:0:0:ffff:9d7f:424b
157.127.66.76 0:0:0:0:0:ffff:9d7f:424c
157.127.66.77 0:0:0:0:0:ffff:9d7f:424d
157.127.66.78 0:0:0:0:0:ffff:9d7f:424e
157.127.66.79 0:0:0:0:0:ffff:9d7f:424f
157.127.66.80 0:0:0:0:0:ffff:9d7f:4250
157.127.66.81 0:0:0:0:0:ffff:9d7f:4251
157.127.66.82 0:0:0:0:0:ffff:9d7f:4252
157.127.66.83 0:0:0:0:0:ffff:9d7f:4253
157.127.66.84 0:0:0:0:0:ffff:9d7f:4254
157.127.66.85 0:0:0:0:0:ffff:9d7f:4255
157.127.66.86 0:0:0:0:0:ffff:9d7f:4256
157.127.66.87 0:0:0:0:0:ffff:9d7f:4257
157.127.66.88 0:0:0:0:0:ffff:9d7f:4258
157.127.66.89 0:0:0:0:0:ffff:9d7f:4259
157.127.66.90 0:0:0:0:0:ffff:9d7f:425a
157.127.66.91 0:0:0:0:0:ffff:9d7f:425b
157.127.66.92 0:0:0:0:0:ffff:9d7f:425c
157.127.66.93 0:0:0:0:0:ffff:9d7f:425d
157.127.66.94 0:0:0:0:0:ffff:9d7f:425e
157.127.66.95 0:0:0:0:0:ffff:9d7f:425f
157.127.66.96 0:0:0:0:0:ffff:9d7f:4260
157.127.66.97 0:0:0:0:0:ffff:9d7f:4261
157.127.66.98 0:0:0:0:0:ffff:9d7f:4262
157.127.66.99 0:0:0:0:0:ffff:9d7f:4263
157.127.66.100 0:0:0:0:0:ffff:9d7f:4264
157.127.66.101 0:0:0:0:0:ffff:9d7f:4265
157.127.66.102 0:0:0:0:0:ffff:9d7f:4266
157.127.66.103 0:0:0:0:0:ffff:9d7f:4267
157.127.66.104 0:0:0:0:0:ffff:9d7f:4268
157.127.66.105 0:0:0:0:0:ffff:9d7f:4269
157.127.66.106 0:0:0:0:0:ffff:9d7f:426a
157.127.66.107 0:0:0:0:0:ffff:9d7f:426b
157.127.66.108 0:0:0:0:0:ffff:9d7f:426c
157.127.66.109 0:0:0:0:0:ffff:9d7f:426d
157.127.66.110 0:0:0:0:0:ffff:9d7f:426e
157.127.66.111 0:0:0:0:0:ffff:9d7f:426f
157.127.66.112 0:0:0:0:0:ffff:9d7f:4270
157.127.66.113 0:0:0:0:0:ffff:9d7f:4271
157.127.66.114 0:0:0:0:0:ffff:9d7f:4272
157.127.66.115 0:0:0:0:0:ffff:9d7f:4273
157.127.66.116 0:0:0:0:0:ffff:9d7f:4274
157.127.66.117 0:0:0:0:0:ffff:9d7f:4275
157.127.66.118 0:0:0:0:0:ffff:9d7f:4276
157.127.66.119 0:0:0:0:0:ffff:9d7f:4277
157.127.66.120 0:0:0:0:0:ffff:9d7f:4278


157.127.66.121 0:0:0:0:0:ffff:9d7f:4279
157.127.66.122 0:0:0:0:0:ffff:9d7f:427a
157.127.66.123 0:0:0:0:0:ffff:9d7f:427b
157.127.66.124 0:0:0:0:0:ffff:9d7f:427c
157.127.66.125 0:0:0:0:0:ffff:9d7f:427d
157.127.66.126 0:0:0:0:0:ffff:9d7f:427e
157.127.66.127 0:0:0:0:0:ffff:9d7f:427f
157.127.66.128 0:0:0:0:0:ffff:9d7f:4280
157.127.66.129 0:0:0:0:0:ffff:9d7f:4281
157.127.66.130 0:0:0:0:0:ffff:9d7f:4282
157.127.66.131 0:0:0:0:0:ffff:9d7f:4283
157.127.66.132 0:0:0:0:0:ffff:9d7f:4284
157.127.66.133 0:0:0:0:0:ffff:9d7f:4285
157.127.66.134 0:0:0:0:0:ffff:9d7f:4286
157.127.66.135 0:0:0:0:0:ffff:9d7f:4287
157.127.66.136 0:0:0:0:0:ffff:9d7f:4288
157.127.66.137 0:0:0:0:0:ffff:9d7f:4289
157.127.66.138 0:0:0:0:0:ffff:9d7f:428a
157.127.66.139 0:0:0:0:0:ffff:9d7f:428b
157.127.66.140 0:0:0:0:0:ffff:9d7f:428c
157.127.66.141 0:0:0:0:0:ffff:9d7f:428d
157.127.66.142 0:0:0:0:0:ffff:9d7f:428e
157.127.66.143 0:0:0:0:0:ffff:9d7f:428f
157.127.66.144 0:0:0:0:0:ffff:9d7f:4290
157.127.66.145 0:0:0:0:0:ffff:9d7f:4291
157.127.66.146 0:0:0:0:0:ffff:9d7f:4292
157.127.66.147 0:0:0:0:0:ffff:9d7f:4293
157.127.66.148 0:0:0:0:0:ffff:9d7f:4294
157.127.66.149 0:0:0:0:0:ffff:9d7f:4295
157.127.66.150 0:0:0:0:0:ffff:9d7f:4296
157.127.66.151 0:0:0:0:0:ffff:9d7f:4297
157.127.66.152 0:0:0:0:0:ffff:9d7f:4298
157.127.66.153 0:0:0:0:0:ffff:9d7f:4299
157.127.66.154 0:0:0:0:0:ffff:9d7f:429a
157.127.66.155 0:0:0:0:0:ffff:9d7f:429b
157.127.66.156 0:0:0:0:0:ffff:9d7f:429c
157.127.66.157 0:0:0:0:0:ffff:9d7f:429d
157.127.66.158 0:0:0:0:0:ffff:9d7f:429e
157.127.66.159 0:0:0:0:0:ffff:9d7f:429f
157.127.66.160 0:0:0:0:0:ffff:9d7f:42a0
157.127.66.161 0:0:0:0:0:ffff:9d7f:42a1
157.127.66.162 0:0:0:0:0:ffff:9d7f:42a2
157.127.66.163 0:0:0:0:0:ffff:9d7f:42a3
157.127.66.164 0:0:0:0:0:ffff:9d7f:42a4
157.127.66.165 0:0:0:0:0:ffff:9d7f:42a5
157.127.66.166 0:0:0:0:0:ffff:9d7f:42a6
157.127.66.167 0:0:0:0:0:ffff:9d7f:42a7
157.127.66.168 0:0:0:0:0:ffff:9d7f:42a8
157.127.66.169 0:0:0:0:0:ffff:9d7f:42a9
157.127.66.170 0:0:0:0:0:ffff:9d7f:42aa
157.127.66.171 0:0:0:0:0:ffff:9d7f:42ab
157.127.66.172 0:0:0:0:0:ffff:9d7f:42ac
157.127.66.173 0:0:0:0:0:ffff:9d7f:42ad
157.127.66.174 0:0:0:0:0:ffff:9d7f:42ae
157.127.66.175 0:0:0:0:0:ffff:9d7f:42af
157.127.66.176 0:0:0:0:0:ffff:9d7f:42b0
157.127.66.177 0:0:0:0:0:ffff:9d7f:42b1
157.127.66.178 0:0:0:0:0:ffff:9d7f:42b2
157.127.66.179 0:0:0:0:0:ffff:9d7f:42b3
157.127.66.180 0:0:0:0:0:ffff:9d7f:42b4


157.127.66.181 0:0:0:0:0:ffff:9d7f:42b5
157.127.66.182 0:0:0:0:0:ffff:9d7f:42b6
157.127.66.183 0:0:0:0:0:ffff:9d7f:42b7
157.127.66.184 0:0:0:0:0:ffff:9d7f:42b8
157.127.66.185 0:0:0:0:0:ffff:9d7f:42b9
157.127.66.186 0:0:0:0:0:ffff:9d7f:42ba
157.127.66.187 0:0:0:0:0:ffff:9d7f:42bb
157.127.66.188 0:0:0:0:0:ffff:9d7f:42bc
157.127.66.189 0:0:0:0:0:ffff:9d7f:42bd
157.127.66.190 0:0:0:0:0:ffff:9d7f:42be
157.127.66.191 0:0:0:0:0:ffff:9d7f:42bf
157.127.66.192 0:0:0:0:0:ffff:9d7f:42c0
157.127.66.193 0:0:0:0:0:ffff:9d7f:42c1
157.127.66.194 0:0:0:0:0:ffff:9d7f:42c2
157.127.66.195 0:0:0:0:0:ffff:9d7f:42c3
157.127.66.196 0:0:0:0:0:ffff:9d7f:42c4
157.127.66.197 0:0:0:0:0:ffff:9d7f:42c5
157.127.66.198 0:0:0:0:0:ffff:9d7f:42c6
157.127.66.199 0:0:0:0:0:ffff:9d7f:42c7
157.127.66.200 0:0:0:0:0:ffff:9d7f:42c8
157.127.66.201 0:0:0:0:0:ffff:9d7f:42c9
157.127.66.202 0:0:0:0:0:ffff:9d7f:42ca
157.127.66.203 0:0:0:0:0:ffff:9d7f:42cb
157.127.66.204 0:0:0:0:0:ffff:9d7f:42cc
157.127.66.205 0:0:0:0:0:ffff:9d7f:42cd
157.127.66.206 0:0:0:0:0:ffff:9d7f:42ce
157.127.66.207 0:0:0:0:0:ffff:9d7f:42cf
157.127.66.208 0:0:0:0:0:ffff:9d7f:42d0
157.127.66.209 0:0:0:0:0:ffff:9d7f:42d1
157.127.66.210 0:0:0:0:0:ffff:9d7f:42d2
157.127.66.211 0:0:0:0:0:ffff:9d7f:42d3
157.127.66.212 0:0:0:0:0:ffff:9d7f:42d4
157.127.66.213 0:0:0:0:0:ffff:9d7f:42d5
157.127.66.214 0:0:0:0:0:ffff:9d7f:42d6
157.127.66.215 0:0:0:0:0:ffff:9d7f:42d7
157.127.66.216 0:0:0:0:0:ffff:9d7f:42d8
157.127.66.217 0:0:0:0:0:ffff:9d7f:42d9
157.127.66.218 0:0:0:0:0:ffff:9d7f:42da
157.127.66.219 0:0:0:0:0:ffff:9d7f:42db
157.127.66.220 0:0:0:0:0:ffff:9d7f:42dc
157.127.66.221 0:0:0:0:0:ffff:9d7f:42dd
157.127.66.222 0:0:0:0:0:ffff:9d7f:42de
157.127.66.223 0:0:0:0:0:ffff:9d7f:42df
157.127.66.224 0:0:0:0:0:ffff:9d7f:42e0
157.127.66.225 0:0:0:0:0:ffff:9d7f:42e1
157.127.66.226 0:0:0:0:0:ffff:9d7f:42e2
157.127.66.227 0:0:0:0:0:ffff:9d7f:42e3
157.127.66.228 0:0:0:0:0:ffff:9d7f:42e4
157.127.66.229 0:0:0:0:0:ffff:9d7f:42e5
157.127.66.230 0:0:0:0:0:ffff:9d7f:42e6
157.127.66.231 0:0:0:0:0:ffff:9d7f:42e7
157.127.66.232 0:0:0:0:0:ffff:9d7f:42e8
157.127.66.233 0:0:0:0:0:ffff:9d7f:42e9
157.127.66.234 0:0:0:0:0:ffff:9d7f:42ea
157.127.66.235 0:0:0:0:0:ffff:9d7f:42eb
157.127.66.236 0:0:0:0:0:ffff:9d7f:42ec
157.127.66.237 0:0:0:0:0:ffff:9d7f:42ed
157.127.66.238 0:0:0:0:0:ffff:9d7f:42ee
157.127.66.239 0:0:0:0:0:ffff:9d7f:42ef
157.127.66.240 0:0:0:0:0:ffff:9d7f:42f0
157.127.66.241 0:0:0:0:0:ffff:9d7f:42f1
157.127.66.242 0:0:0:0:0:ffff:9d7f:42f2
157.127.66.243 0:0:0:0:0:ffff:9d7f:42f3
157.127.66.244 0:0:0:0:0:ffff:9d7f:42f4
157.127.66.245 0:0:0:0:0:ffff:9d7f:42f5
157.127.66.246 0:0:0:0:0:ffff:9d7f:42f6
157.127.66.247 0:0:0:0:0:ffff:9d7f:42f7
157.127.66.248 0:0:0:0:0:ffff:9d7f:42f8
157.127.66.249 0:0:0:0:0:ffff:9d7f:42f9
157.127.66.250 0:0:0:0:0:ffff:9d7f:42fa
157.127.66.251 0:0:0:0:0:ffff:9d7f:42fb
157.127.66.252 0:0:0:0:0:ffff:9d7f:42fc
157.127.66.253 0:0:0:0:0:ffff:9d7f:42fd
157.127.66.254 0:0:0:0:0:ffff:9d7f:42fe
157.127.66.255 0:0:0:0:0:ffff:9d7f:42ff


How we got IPv4 subnet masks?

An IPv4 subnet mask consists of 32 bits; it is a sequence of ones (1) followed by a block of zeros (0). The ones indicate bits in the address used for the network prefix and the trailing block of zeros designates that part as being the host identifier.