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
144.21.2.1 0:0:0:0:0:ffff:9015:201
144.21.2.2 0:0:0:0:0:ffff:9015:202
144.21.2.3 0:0:0:0:0:ffff:9015:203
144.21.2.4 0:0:0:0:0:ffff:9015:204
144.21.2.5 0:0:0:0:0:ffff:9015:205
144.21.2.6 0:0:0:0:0:ffff:9015:206
144.21.2.7 0:0:0:0:0:ffff:9015:207
144.21.2.8 0:0:0:0:0:ffff:9015:208
144.21.2.9 0:0:0:0:0:ffff:9015:209
144.21.2.10 0:0:0:0:0:ffff:9015:20a
144.21.2.11 0:0:0:0:0:ffff:9015:20b
144.21.2.12 0:0:0:0:0:ffff:9015:20c
144.21.2.13 0:0:0:0:0:ffff:9015:20d
144.21.2.14 0:0:0:0:0:ffff:9015:20e
144.21.2.15 0:0:0:0:0:ffff:9015:20f
144.21.2.16 0:0:0:0:0:ffff:9015:210
144.21.2.17 0:0:0:0:0:ffff:9015:211
144.21.2.18 0:0:0:0:0:ffff:9015:212
144.21.2.19 0:0:0:0:0:ffff:9015:213
144.21.2.20 0:0:0:0:0:ffff:9015:214
144.21.2.21 0:0:0:0:0:ffff:9015:215
144.21.2.22 0:0:0:0:0:ffff:9015:216
144.21.2.23 0:0:0:0:0:ffff:9015:217
144.21.2.24 0:0:0:0:0:ffff:9015:218
144.21.2.25 0:0:0:0:0:ffff:9015:219
144.21.2.26 0:0:0:0:0:ffff:9015:21a
144.21.2.27 0:0:0:0:0:ffff:9015:21b
144.21.2.28 0:0:0:0:0:ffff:9015:21c
144.21.2.29 0:0:0:0:0:ffff:9015:21d
144.21.2.30 0:0:0:0:0:ffff:9015:21e
144.21.2.31 0:0:0:0:0:ffff:9015:21f
144.21.2.32 0:0:0:0:0:ffff:9015:220
144.21.2.33 0:0:0:0:0:ffff:9015:221
144.21.2.34 0:0:0:0:0:ffff:9015:222
144.21.2.35 0:0:0:0:0:ffff:9015:223
144.21.2.36 0:0:0:0:0:ffff:9015:224
144.21.2.37 0:0:0:0:0:ffff:9015:225
144.21.2.38 0:0:0:0:0:ffff:9015:226
144.21.2.39 0:0:0:0:0:ffff:9015:227
144.21.2.40 0:0:0:0:0:ffff:9015:228
144.21.2.41 0:0:0:0:0:ffff:9015:229
144.21.2.42 0:0:0:0:0:ffff:9015:22a
144.21.2.43 0:0:0:0:0:ffff:9015:22b
144.21.2.44 0:0:0:0:0:ffff:9015:22c
144.21.2.45 0:0:0:0:0:ffff:9015:22d
144.21.2.46 0:0:0:0:0:ffff:9015:22e
144.21.2.47 0:0:0:0:0:ffff:9015:22f
144.21.2.48 0:0:0:0:0:ffff:9015:230
144.21.2.49 0:0:0:0:0:ffff:9015:231
144.21.2.50 0:0:0:0:0:ffff:9015:232
144.21.2.51 0:0:0:0:0:ffff:9015:233
144.21.2.52 0:0:0:0:0:ffff:9015:234
144.21.2.53 0:0:0:0:0:ffff:9015:235
144.21.2.54 0:0:0:0:0:ffff:9015:236
144.21.2.55 0:0:0:0:0:ffff:9015:237
144.21.2.56 0:0:0:0:0:ffff:9015:238
144.21.2.57 0:0:0:0:0:ffff:9015:239
144.21.2.58 0:0:0:0:0:ffff:9015:23a
144.21.2.59 0:0:0:0:0:ffff:9015:23b
144.21.2.60 0:0:0:0:0:ffff:9015:23c


144.21.2.61 0:0:0:0:0:ffff:9015:23d
144.21.2.62 0:0:0:0:0:ffff:9015:23e
144.21.2.63 0:0:0:0:0:ffff:9015:23f
144.21.2.64 0:0:0:0:0:ffff:9015:240
144.21.2.65 0:0:0:0:0:ffff:9015:241
144.21.2.66 0:0:0:0:0:ffff:9015:242
144.21.2.67 0:0:0:0:0:ffff:9015:243
144.21.2.68 0:0:0:0:0:ffff:9015:244
144.21.2.69 0:0:0:0:0:ffff:9015:245
144.21.2.70 0:0:0:0:0:ffff:9015:246
144.21.2.71 0:0:0:0:0:ffff:9015:247
144.21.2.72 0:0:0:0:0:ffff:9015:248
144.21.2.73 0:0:0:0:0:ffff:9015:249
144.21.2.74 0:0:0:0:0:ffff:9015:24a
144.21.2.75 0:0:0:0:0:ffff:9015:24b
144.21.2.76 0:0:0:0:0:ffff:9015:24c
144.21.2.77 0:0:0:0:0:ffff:9015:24d
144.21.2.78 0:0:0:0:0:ffff:9015:24e
144.21.2.79 0:0:0:0:0:ffff:9015:24f
144.21.2.80 0:0:0:0:0:ffff:9015:250
144.21.2.81 0:0:0:0:0:ffff:9015:251
144.21.2.82 0:0:0:0:0:ffff:9015:252
144.21.2.83 0:0:0:0:0:ffff:9015:253
144.21.2.84 0:0:0:0:0:ffff:9015:254
144.21.2.85 0:0:0:0:0:ffff:9015:255
144.21.2.86 0:0:0:0:0:ffff:9015:256
144.21.2.87 0:0:0:0:0:ffff:9015:257
144.21.2.88 0:0:0:0:0:ffff:9015:258
144.21.2.89 0:0:0:0:0:ffff:9015:259
144.21.2.90 0:0:0:0:0:ffff:9015:25a
144.21.2.91 0:0:0:0:0:ffff:9015:25b
144.21.2.92 0:0:0:0:0:ffff:9015:25c
144.21.2.93 0:0:0:0:0:ffff:9015:25d
144.21.2.94 0:0:0:0:0:ffff:9015:25e
144.21.2.95 0:0:0:0:0:ffff:9015:25f
144.21.2.96 0:0:0:0:0:ffff:9015:260
144.21.2.97 0:0:0:0:0:ffff:9015:261
144.21.2.98 0:0:0:0:0:ffff:9015:262
144.21.2.99 0:0:0:0:0:ffff:9015:263
144.21.2.100 0:0:0:0:0:ffff:9015:264
144.21.2.101 0:0:0:0:0:ffff:9015:265
144.21.2.102 0:0:0:0:0:ffff:9015:266
144.21.2.103 0:0:0:0:0:ffff:9015:267
144.21.2.104 0:0:0:0:0:ffff:9015:268
144.21.2.105 0:0:0:0:0:ffff:9015:269
144.21.2.106 0:0:0:0:0:ffff:9015:26a
144.21.2.107 0:0:0:0:0:ffff:9015:26b
144.21.2.108 0:0:0:0:0:ffff:9015:26c
144.21.2.109 0:0:0:0:0:ffff:9015:26d
144.21.2.110 0:0:0:0:0:ffff:9015:26e
144.21.2.111 0:0:0:0:0:ffff:9015:26f
144.21.2.112 0:0:0:0:0:ffff:9015:270
144.21.2.113 0:0:0:0:0:ffff:9015:271
144.21.2.114 0:0:0:0:0:ffff:9015:272
144.21.2.115 0:0:0:0:0:ffff:9015:273
144.21.2.116 0:0:0:0:0:ffff:9015:274
144.21.2.117 0:0:0:0:0:ffff:9015:275
144.21.2.118 0:0:0:0:0:ffff:9015:276
144.21.2.119 0:0:0:0:0:ffff:9015:277
144.21.2.120 0:0:0:0:0:ffff:9015:278


144.21.2.121 0:0:0:0:0:ffff:9015:279
144.21.2.122 0:0:0:0:0:ffff:9015:27a
144.21.2.123 0:0:0:0:0:ffff:9015:27b
144.21.2.124 0:0:0:0:0:ffff:9015:27c
144.21.2.125 0:0:0:0:0:ffff:9015:27d
144.21.2.126 0:0:0:0:0:ffff:9015:27e
144.21.2.127 0:0:0:0:0:ffff:9015:27f
144.21.2.128 0:0:0:0:0:ffff:9015:280
144.21.2.129 0:0:0:0:0:ffff:9015:281
144.21.2.130 0:0:0:0:0:ffff:9015:282
144.21.2.131 0:0:0:0:0:ffff:9015:283
144.21.2.132 0:0:0:0:0:ffff:9015:284
144.21.2.133 0:0:0:0:0:ffff:9015:285
144.21.2.134 0:0:0:0:0:ffff:9015:286
144.21.2.135 0:0:0:0:0:ffff:9015:287
144.21.2.136 0:0:0:0:0:ffff:9015:288
144.21.2.137 0:0:0:0:0:ffff:9015:289
144.21.2.138 0:0:0:0:0:ffff:9015:28a
144.21.2.139 0:0:0:0:0:ffff:9015:28b
144.21.2.140 0:0:0:0:0:ffff:9015:28c
144.21.2.141 0:0:0:0:0:ffff:9015:28d
144.21.2.142 0:0:0:0:0:ffff:9015:28e
144.21.2.143 0:0:0:0:0:ffff:9015:28f
144.21.2.144 0:0:0:0:0:ffff:9015:290
144.21.2.145 0:0:0:0:0:ffff:9015:291
144.21.2.146 0:0:0:0:0:ffff:9015:292
144.21.2.147 0:0:0:0:0:ffff:9015:293
144.21.2.148 0:0:0:0:0:ffff:9015:294
144.21.2.149 0:0:0:0:0:ffff:9015:295
144.21.2.150 0:0:0:0:0:ffff:9015:296
144.21.2.151 0:0:0:0:0:ffff:9015:297
144.21.2.152 0:0:0:0:0:ffff:9015:298
144.21.2.153 0:0:0:0:0:ffff:9015:299
144.21.2.154 0:0:0:0:0:ffff:9015:29a
144.21.2.155 0:0:0:0:0:ffff:9015:29b
144.21.2.156 0:0:0:0:0:ffff:9015:29c
144.21.2.157 0:0:0:0:0:ffff:9015:29d
144.21.2.158 0:0:0:0:0:ffff:9015:29e
144.21.2.159 0:0:0:0:0:ffff:9015:29f
144.21.2.160 0:0:0:0:0:ffff:9015:2a0
144.21.2.161 0:0:0:0:0:ffff:9015:2a1
144.21.2.162 0:0:0:0:0:ffff:9015:2a2
144.21.2.163 0:0:0:0:0:ffff:9015:2a3
144.21.2.164 0:0:0:0:0:ffff:9015:2a4
144.21.2.165 0:0:0:0:0:ffff:9015:2a5
144.21.2.166 0:0:0:0:0:ffff:9015:2a6
144.21.2.167 0:0:0:0:0:ffff:9015:2a7
144.21.2.168 0:0:0:0:0:ffff:9015:2a8
144.21.2.169 0:0:0:0:0:ffff:9015:2a9
144.21.2.170 0:0:0:0:0:ffff:9015:2aa
144.21.2.171 0:0:0:0:0:ffff:9015:2ab
144.21.2.172 0:0:0:0:0:ffff:9015:2ac
144.21.2.173 0:0:0:0:0:ffff:9015:2ad
144.21.2.174 0:0:0:0:0:ffff:9015:2ae
144.21.2.175 0:0:0:0:0:ffff:9015:2af
144.21.2.176 0:0:0:0:0:ffff:9015:2b0
144.21.2.177 0:0:0:0:0:ffff:9015:2b1
144.21.2.178 0:0:0:0:0:ffff:9015:2b2
144.21.2.179 0:0:0:0:0:ffff:9015:2b3
144.21.2.180 0:0:0:0:0:ffff:9015:2b4


144.21.2.181 0:0:0:0:0:ffff:9015:2b5
144.21.2.182 0:0:0:0:0:ffff:9015:2b6
144.21.2.183 0:0:0:0:0:ffff:9015:2b7
144.21.2.184 0:0:0:0:0:ffff:9015:2b8
144.21.2.185 0:0:0:0:0:ffff:9015:2b9
144.21.2.186 0:0:0:0:0:ffff:9015:2ba
144.21.2.187 0:0:0:0:0:ffff:9015:2bb
144.21.2.188 0:0:0:0:0:ffff:9015:2bc
144.21.2.189 0:0:0:0:0:ffff:9015:2bd
144.21.2.190 0:0:0:0:0:ffff:9015:2be
144.21.2.191 0:0:0:0:0:ffff:9015:2bf
144.21.2.192 0:0:0:0:0:ffff:9015:2c0
144.21.2.193 0:0:0:0:0:ffff:9015:2c1
144.21.2.194 0:0:0:0:0:ffff:9015:2c2
144.21.2.195 0:0:0:0:0:ffff:9015:2c3
144.21.2.196 0:0:0:0:0:ffff:9015:2c4
144.21.2.197 0:0:0:0:0:ffff:9015:2c5
144.21.2.198 0:0:0:0:0:ffff:9015:2c6
144.21.2.199 0:0:0:0:0:ffff:9015:2c7
144.21.2.200 0:0:0:0:0:ffff:9015:2c8
144.21.2.201 0:0:0:0:0:ffff:9015:2c9
144.21.2.202 0:0:0:0:0:ffff:9015:2ca
144.21.2.203 0:0:0:0:0:ffff:9015:2cb
144.21.2.204 0:0:0:0:0:ffff:9015:2cc
144.21.2.205 0:0:0:0:0:ffff:9015:2cd
144.21.2.206 0:0:0:0:0:ffff:9015:2ce
144.21.2.207 0:0:0:0:0:ffff:9015:2cf
144.21.2.208 0:0:0:0:0:ffff:9015:2d0
144.21.2.209 0:0:0:0:0:ffff:9015:2d1
144.21.2.210 0:0:0:0:0:ffff:9015:2d2
144.21.2.211 0:0:0:0:0:ffff:9015:2d3
144.21.2.212 0:0:0:0:0:ffff:9015:2d4
144.21.2.213 0:0:0:0:0:ffff:9015:2d5
144.21.2.214 0:0:0:0:0:ffff:9015:2d6
144.21.2.215 0:0:0:0:0:ffff:9015:2d7
144.21.2.216 0:0:0:0:0:ffff:9015:2d8
144.21.2.217 0:0:0:0:0:ffff:9015:2d9
144.21.2.218 0:0:0:0:0:ffff:9015:2da
144.21.2.219 0:0:0:0:0:ffff:9015:2db
144.21.2.220 0:0:0:0:0:ffff:9015:2dc
144.21.2.221 0:0:0:0:0:ffff:9015:2dd
144.21.2.222 0:0:0:0:0:ffff:9015:2de
144.21.2.223 0:0:0:0:0:ffff:9015:2df
144.21.2.224 0:0:0:0:0:ffff:9015:2e0
144.21.2.225 0:0:0:0:0:ffff:9015:2e1
144.21.2.226 0:0:0:0:0:ffff:9015:2e2
144.21.2.227 0:0:0:0:0:ffff:9015:2e3
144.21.2.228 0:0:0:0:0:ffff:9015:2e4
144.21.2.229 0:0:0:0:0:ffff:9015:2e5
144.21.2.230 0:0:0:0:0:ffff:9015:2e6
144.21.2.231 0:0:0:0:0:ffff:9015:2e7
144.21.2.232 0:0:0:0:0:ffff:9015:2e8
144.21.2.233 0:0:0:0:0:ffff:9015:2e9
144.21.2.234 0:0:0:0:0:ffff:9015:2ea
144.21.2.235 0:0:0:0:0:ffff:9015:2eb
144.21.2.236 0:0:0:0:0:ffff:9015:2ec
144.21.2.237 0:0:0:0:0:ffff:9015:2ed
144.21.2.238 0:0:0:0:0:ffff:9015:2ee
144.21.2.239 0:0:0:0:0:ffff:9015:2ef
144.21.2.240 0:0:0:0:0:ffff:9015:2f0
144.21.2.241 0:0:0:0:0:ffff:9015:2f1
144.21.2.242 0:0:0:0:0:ffff:9015:2f2
144.21.2.243 0:0:0:0:0:ffff:9015:2f3
144.21.2.244 0:0:0:0:0:ffff:9015:2f4
144.21.2.245 0:0:0:0:0:ffff:9015:2f5
144.21.2.246 0:0:0:0:0:ffff:9015:2f6
144.21.2.247 0:0:0:0:0:ffff:9015:2f7
144.21.2.248 0:0:0:0:0:ffff:9015:2f8
144.21.2.249 0:0:0:0:0:ffff:9015:2f9
144.21.2.250 0:0:0:0:0:ffff:9015:2fa
144.21.2.251 0:0:0:0:0:ffff:9015:2fb
144.21.2.252 0:0:0:0:0:ffff:9015:2fc
144.21.2.253 0:0:0:0:0:ffff:9015:2fd
144.21.2.254 0:0:0:0:0:ffff:9015:2fe
144.21.2.255 0:0:0:0:0:ffff:9015:2ff


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.