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
21.15.98.1 0:0:0:0:0:ffff:150f:6201
21.15.98.2 0:0:0:0:0:ffff:150f:6202
21.15.98.3 0:0:0:0:0:ffff:150f:6203
21.15.98.4 0:0:0:0:0:ffff:150f:6204
21.15.98.5 0:0:0:0:0:ffff:150f:6205
21.15.98.6 0:0:0:0:0:ffff:150f:6206
21.15.98.7 0:0:0:0:0:ffff:150f:6207
21.15.98.8 0:0:0:0:0:ffff:150f:6208
21.15.98.9 0:0:0:0:0:ffff:150f:6209
21.15.98.10 0:0:0:0:0:ffff:150f:620a
21.15.98.11 0:0:0:0:0:ffff:150f:620b
21.15.98.12 0:0:0:0:0:ffff:150f:620c
21.15.98.13 0:0:0:0:0:ffff:150f:620d
21.15.98.14 0:0:0:0:0:ffff:150f:620e
21.15.98.15 0:0:0:0:0:ffff:150f:620f
21.15.98.16 0:0:0:0:0:ffff:150f:6210
21.15.98.17 0:0:0:0:0:ffff:150f:6211
21.15.98.18 0:0:0:0:0:ffff:150f:6212
21.15.98.19 0:0:0:0:0:ffff:150f:6213
21.15.98.20 0:0:0:0:0:ffff:150f:6214
21.15.98.21 0:0:0:0:0:ffff:150f:6215
21.15.98.22 0:0:0:0:0:ffff:150f:6216
21.15.98.23 0:0:0:0:0:ffff:150f:6217
21.15.98.24 0:0:0:0:0:ffff:150f:6218
21.15.98.25 0:0:0:0:0:ffff:150f:6219
21.15.98.26 0:0:0:0:0:ffff:150f:621a
21.15.98.27 0:0:0:0:0:ffff:150f:621b
21.15.98.28 0:0:0:0:0:ffff:150f:621c
21.15.98.29 0:0:0:0:0:ffff:150f:621d
21.15.98.30 0:0:0:0:0:ffff:150f:621e
21.15.98.31 0:0:0:0:0:ffff:150f:621f
21.15.98.32 0:0:0:0:0:ffff:150f:6220
21.15.98.33 0:0:0:0:0:ffff:150f:6221
21.15.98.34 0:0:0:0:0:ffff:150f:6222
21.15.98.35 0:0:0:0:0:ffff:150f:6223
21.15.98.36 0:0:0:0:0:ffff:150f:6224
21.15.98.37 0:0:0:0:0:ffff:150f:6225
21.15.98.38 0:0:0:0:0:ffff:150f:6226
21.15.98.39 0:0:0:0:0:ffff:150f:6227
21.15.98.40 0:0:0:0:0:ffff:150f:6228
21.15.98.41 0:0:0:0:0:ffff:150f:6229
21.15.98.42 0:0:0:0:0:ffff:150f:622a
21.15.98.43 0:0:0:0:0:ffff:150f:622b
21.15.98.44 0:0:0:0:0:ffff:150f:622c
21.15.98.45 0:0:0:0:0:ffff:150f:622d
21.15.98.46 0:0:0:0:0:ffff:150f:622e
21.15.98.47 0:0:0:0:0:ffff:150f:622f
21.15.98.48 0:0:0:0:0:ffff:150f:6230
21.15.98.49 0:0:0:0:0:ffff:150f:6231
21.15.98.50 0:0:0:0:0:ffff:150f:6232
21.15.98.51 0:0:0:0:0:ffff:150f:6233
21.15.98.52 0:0:0:0:0:ffff:150f:6234
21.15.98.53 0:0:0:0:0:ffff:150f:6235
21.15.98.54 0:0:0:0:0:ffff:150f:6236
21.15.98.55 0:0:0:0:0:ffff:150f:6237
21.15.98.56 0:0:0:0:0:ffff:150f:6238
21.15.98.57 0:0:0:0:0:ffff:150f:6239
21.15.98.58 0:0:0:0:0:ffff:150f:623a
21.15.98.59 0:0:0:0:0:ffff:150f:623b
21.15.98.60 0:0:0:0:0:ffff:150f:623c


21.15.98.61 0:0:0:0:0:ffff:150f:623d
21.15.98.62 0:0:0:0:0:ffff:150f:623e
21.15.98.63 0:0:0:0:0:ffff:150f:623f
21.15.98.64 0:0:0:0:0:ffff:150f:6240
21.15.98.65 0:0:0:0:0:ffff:150f:6241
21.15.98.66 0:0:0:0:0:ffff:150f:6242
21.15.98.67 0:0:0:0:0:ffff:150f:6243
21.15.98.68 0:0:0:0:0:ffff:150f:6244
21.15.98.69 0:0:0:0:0:ffff:150f:6245
21.15.98.70 0:0:0:0:0:ffff:150f:6246
21.15.98.71 0:0:0:0:0:ffff:150f:6247
21.15.98.72 0:0:0:0:0:ffff:150f:6248
21.15.98.73 0:0:0:0:0:ffff:150f:6249
21.15.98.74 0:0:0:0:0:ffff:150f:624a
21.15.98.75 0:0:0:0:0:ffff:150f:624b
21.15.98.76 0:0:0:0:0:ffff:150f:624c
21.15.98.77 0:0:0:0:0:ffff:150f:624d
21.15.98.78 0:0:0:0:0:ffff:150f:624e
21.15.98.79 0:0:0:0:0:ffff:150f:624f
21.15.98.80 0:0:0:0:0:ffff:150f:6250
21.15.98.81 0:0:0:0:0:ffff:150f:6251
21.15.98.82 0:0:0:0:0:ffff:150f:6252
21.15.98.83 0:0:0:0:0:ffff:150f:6253
21.15.98.84 0:0:0:0:0:ffff:150f:6254
21.15.98.85 0:0:0:0:0:ffff:150f:6255
21.15.98.86 0:0:0:0:0:ffff:150f:6256
21.15.98.87 0:0:0:0:0:ffff:150f:6257
21.15.98.88 0:0:0:0:0:ffff:150f:6258
21.15.98.89 0:0:0:0:0:ffff:150f:6259
21.15.98.90 0:0:0:0:0:ffff:150f:625a
21.15.98.91 0:0:0:0:0:ffff:150f:625b
21.15.98.92 0:0:0:0:0:ffff:150f:625c
21.15.98.93 0:0:0:0:0:ffff:150f:625d
21.15.98.94 0:0:0:0:0:ffff:150f:625e
21.15.98.95 0:0:0:0:0:ffff:150f:625f
21.15.98.96 0:0:0:0:0:ffff:150f:6260
21.15.98.97 0:0:0:0:0:ffff:150f:6261
21.15.98.98 0:0:0:0:0:ffff:150f:6262
21.15.98.99 0:0:0:0:0:ffff:150f:6263
21.15.98.100 0:0:0:0:0:ffff:150f:6264
21.15.98.101 0:0:0:0:0:ffff:150f:6265
21.15.98.102 0:0:0:0:0:ffff:150f:6266
21.15.98.103 0:0:0:0:0:ffff:150f:6267
21.15.98.104 0:0:0:0:0:ffff:150f:6268
21.15.98.105 0:0:0:0:0:ffff:150f:6269
21.15.98.106 0:0:0:0:0:ffff:150f:626a
21.15.98.107 0:0:0:0:0:ffff:150f:626b
21.15.98.108 0:0:0:0:0:ffff:150f:626c
21.15.98.109 0:0:0:0:0:ffff:150f:626d
21.15.98.110 0:0:0:0:0:ffff:150f:626e
21.15.98.111 0:0:0:0:0:ffff:150f:626f
21.15.98.112 0:0:0:0:0:ffff:150f:6270
21.15.98.113 0:0:0:0:0:ffff:150f:6271
21.15.98.114 0:0:0:0:0:ffff:150f:6272
21.15.98.115 0:0:0:0:0:ffff:150f:6273
21.15.98.116 0:0:0:0:0:ffff:150f:6274
21.15.98.117 0:0:0:0:0:ffff:150f:6275
21.15.98.118 0:0:0:0:0:ffff:150f:6276
21.15.98.119 0:0:0:0:0:ffff:150f:6277
21.15.98.120 0:0:0:0:0:ffff:150f:6278


21.15.98.121 0:0:0:0:0:ffff:150f:6279
21.15.98.122 0:0:0:0:0:ffff:150f:627a
21.15.98.123 0:0:0:0:0:ffff:150f:627b
21.15.98.124 0:0:0:0:0:ffff:150f:627c
21.15.98.125 0:0:0:0:0:ffff:150f:627d
21.15.98.126 0:0:0:0:0:ffff:150f:627e
21.15.98.127 0:0:0:0:0:ffff:150f:627f
21.15.98.128 0:0:0:0:0:ffff:150f:6280
21.15.98.129 0:0:0:0:0:ffff:150f:6281
21.15.98.130 0:0:0:0:0:ffff:150f:6282
21.15.98.131 0:0:0:0:0:ffff:150f:6283
21.15.98.132 0:0:0:0:0:ffff:150f:6284
21.15.98.133 0:0:0:0:0:ffff:150f:6285
21.15.98.134 0:0:0:0:0:ffff:150f:6286
21.15.98.135 0:0:0:0:0:ffff:150f:6287
21.15.98.136 0:0:0:0:0:ffff:150f:6288
21.15.98.137 0:0:0:0:0:ffff:150f:6289
21.15.98.138 0:0:0:0:0:ffff:150f:628a
21.15.98.139 0:0:0:0:0:ffff:150f:628b
21.15.98.140 0:0:0:0:0:ffff:150f:628c
21.15.98.141 0:0:0:0:0:ffff:150f:628d
21.15.98.142 0:0:0:0:0:ffff:150f:628e
21.15.98.143 0:0:0:0:0:ffff:150f:628f
21.15.98.144 0:0:0:0:0:ffff:150f:6290
21.15.98.145 0:0:0:0:0:ffff:150f:6291
21.15.98.146 0:0:0:0:0:ffff:150f:6292
21.15.98.147 0:0:0:0:0:ffff:150f:6293
21.15.98.148 0:0:0:0:0:ffff:150f:6294
21.15.98.149 0:0:0:0:0:ffff:150f:6295
21.15.98.150 0:0:0:0:0:ffff:150f:6296
21.15.98.151 0:0:0:0:0:ffff:150f:6297
21.15.98.152 0:0:0:0:0:ffff:150f:6298
21.15.98.153 0:0:0:0:0:ffff:150f:6299
21.15.98.154 0:0:0:0:0:ffff:150f:629a
21.15.98.155 0:0:0:0:0:ffff:150f:629b
21.15.98.156 0:0:0:0:0:ffff:150f:629c
21.15.98.157 0:0:0:0:0:ffff:150f:629d
21.15.98.158 0:0:0:0:0:ffff:150f:629e
21.15.98.159 0:0:0:0:0:ffff:150f:629f
21.15.98.160 0:0:0:0:0:ffff:150f:62a0
21.15.98.161 0:0:0:0:0:ffff:150f:62a1
21.15.98.162 0:0:0:0:0:ffff:150f:62a2
21.15.98.163 0:0:0:0:0:ffff:150f:62a3
21.15.98.164 0:0:0:0:0:ffff:150f:62a4
21.15.98.165 0:0:0:0:0:ffff:150f:62a5
21.15.98.166 0:0:0:0:0:ffff:150f:62a6
21.15.98.167 0:0:0:0:0:ffff:150f:62a7
21.15.98.168 0:0:0:0:0:ffff:150f:62a8
21.15.98.169 0:0:0:0:0:ffff:150f:62a9
21.15.98.170 0:0:0:0:0:ffff:150f:62aa
21.15.98.171 0:0:0:0:0:ffff:150f:62ab
21.15.98.172 0:0:0:0:0:ffff:150f:62ac
21.15.98.173 0:0:0:0:0:ffff:150f:62ad
21.15.98.174 0:0:0:0:0:ffff:150f:62ae
21.15.98.175 0:0:0:0:0:ffff:150f:62af
21.15.98.176 0:0:0:0:0:ffff:150f:62b0
21.15.98.177 0:0:0:0:0:ffff:150f:62b1
21.15.98.178 0:0:0:0:0:ffff:150f:62b2
21.15.98.179 0:0:0:0:0:ffff:150f:62b3
21.15.98.180 0:0:0:0:0:ffff:150f:62b4


21.15.98.181 0:0:0:0:0:ffff:150f:62b5
21.15.98.182 0:0:0:0:0:ffff:150f:62b6
21.15.98.183 0:0:0:0:0:ffff:150f:62b7
21.15.98.184 0:0:0:0:0:ffff:150f:62b8
21.15.98.185 0:0:0:0:0:ffff:150f:62b9
21.15.98.186 0:0:0:0:0:ffff:150f:62ba
21.15.98.187 0:0:0:0:0:ffff:150f:62bb
21.15.98.188 0:0:0:0:0:ffff:150f:62bc
21.15.98.189 0:0:0:0:0:ffff:150f:62bd
21.15.98.190 0:0:0:0:0:ffff:150f:62be
21.15.98.191 0:0:0:0:0:ffff:150f:62bf
21.15.98.192 0:0:0:0:0:ffff:150f:62c0
21.15.98.193 0:0:0:0:0:ffff:150f:62c1
21.15.98.194 0:0:0:0:0:ffff:150f:62c2
21.15.98.195 0:0:0:0:0:ffff:150f:62c3
21.15.98.196 0:0:0:0:0:ffff:150f:62c4
21.15.98.197 0:0:0:0:0:ffff:150f:62c5
21.15.98.198 0:0:0:0:0:ffff:150f:62c6
21.15.98.199 0:0:0:0:0:ffff:150f:62c7
21.15.98.200 0:0:0:0:0:ffff:150f:62c8
21.15.98.201 0:0:0:0:0:ffff:150f:62c9
21.15.98.202 0:0:0:0:0:ffff:150f:62ca
21.15.98.203 0:0:0:0:0:ffff:150f:62cb
21.15.98.204 0:0:0:0:0:ffff:150f:62cc
21.15.98.205 0:0:0:0:0:ffff:150f:62cd
21.15.98.206 0:0:0:0:0:ffff:150f:62ce
21.15.98.207 0:0:0:0:0:ffff:150f:62cf
21.15.98.208 0:0:0:0:0:ffff:150f:62d0
21.15.98.209 0:0:0:0:0:ffff:150f:62d1
21.15.98.210 0:0:0:0:0:ffff:150f:62d2
21.15.98.211 0:0:0:0:0:ffff:150f:62d3
21.15.98.212 0:0:0:0:0:ffff:150f:62d4
21.15.98.213 0:0:0:0:0:ffff:150f:62d5
21.15.98.214 0:0:0:0:0:ffff:150f:62d6
21.15.98.215 0:0:0:0:0:ffff:150f:62d7
21.15.98.216 0:0:0:0:0:ffff:150f:62d8
21.15.98.217 0:0:0:0:0:ffff:150f:62d9
21.15.98.218 0:0:0:0:0:ffff:150f:62da
21.15.98.219 0:0:0:0:0:ffff:150f:62db
21.15.98.220 0:0:0:0:0:ffff:150f:62dc
21.15.98.221 0:0:0:0:0:ffff:150f:62dd
21.15.98.222 0:0:0:0:0:ffff:150f:62de
21.15.98.223 0:0:0:0:0:ffff:150f:62df
21.15.98.224 0:0:0:0:0:ffff:150f:62e0
21.15.98.225 0:0:0:0:0:ffff:150f:62e1
21.15.98.226 0:0:0:0:0:ffff:150f:62e2
21.15.98.227 0:0:0:0:0:ffff:150f:62e3
21.15.98.228 0:0:0:0:0:ffff:150f:62e4
21.15.98.229 0:0:0:0:0:ffff:150f:62e5
21.15.98.230 0:0:0:0:0:ffff:150f:62e6
21.15.98.231 0:0:0:0:0:ffff:150f:62e7
21.15.98.232 0:0:0:0:0:ffff:150f:62e8
21.15.98.233 0:0:0:0:0:ffff:150f:62e9
21.15.98.234 0:0:0:0:0:ffff:150f:62ea
21.15.98.235 0:0:0:0:0:ffff:150f:62eb
21.15.98.236 0:0:0:0:0:ffff:150f:62ec
21.15.98.237 0:0:0:0:0:ffff:150f:62ed
21.15.98.238 0:0:0:0:0:ffff:150f:62ee
21.15.98.239 0:0:0:0:0:ffff:150f:62ef
21.15.98.240 0:0:0:0:0:ffff:150f:62f0
21.15.98.241 0:0:0:0:0:ffff:150f:62f1
21.15.98.242 0:0:0:0:0:ffff:150f:62f2
21.15.98.243 0:0:0:0:0:ffff:150f:62f3
21.15.98.244 0:0:0:0:0:ffff:150f:62f4
21.15.98.245 0:0:0:0:0:ffff:150f:62f5
21.15.98.246 0:0:0:0:0:ffff:150f:62f6
21.15.98.247 0:0:0:0:0:ffff:150f:62f7
21.15.98.248 0:0:0:0:0:ffff:150f:62f8
21.15.98.249 0:0:0:0:0:ffff:150f:62f9
21.15.98.250 0:0:0:0:0:ffff:150f:62fa
21.15.98.251 0:0:0:0:0:ffff:150f:62fb
21.15.98.252 0:0:0:0:0:ffff:150f:62fc
21.15.98.253 0:0:0:0:0:ffff:150f:62fd
21.15.98.254 0:0:0:0:0:ffff:150f:62fe
21.15.98.255 0:0:0:0:0:ffff:150f:62ff


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.