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
118.142.18.1 0:0:0:0:0:ffff:768e:1201
118.142.18.2 0:0:0:0:0:ffff:768e:1202
118.142.18.3 0:0:0:0:0:ffff:768e:1203
118.142.18.4 0:0:0:0:0:ffff:768e:1204
118.142.18.5 0:0:0:0:0:ffff:768e:1205
118.142.18.6 0:0:0:0:0:ffff:768e:1206
118.142.18.7 0:0:0:0:0:ffff:768e:1207
118.142.18.8 0:0:0:0:0:ffff:768e:1208
118.142.18.9 0:0:0:0:0:ffff:768e:1209
118.142.18.10 0:0:0:0:0:ffff:768e:120a
118.142.18.11 0:0:0:0:0:ffff:768e:120b
118.142.18.12 0:0:0:0:0:ffff:768e:120c
118.142.18.13 0:0:0:0:0:ffff:768e:120d
118.142.18.14 0:0:0:0:0:ffff:768e:120e
118.142.18.15 0:0:0:0:0:ffff:768e:120f
118.142.18.16 0:0:0:0:0:ffff:768e:1210
118.142.18.17 0:0:0:0:0:ffff:768e:1211
118.142.18.18 0:0:0:0:0:ffff:768e:1212
118.142.18.19 0:0:0:0:0:ffff:768e:1213
118.142.18.20 0:0:0:0:0:ffff:768e:1214
118.142.18.21 0:0:0:0:0:ffff:768e:1215
118.142.18.22 0:0:0:0:0:ffff:768e:1216
118.142.18.23 0:0:0:0:0:ffff:768e:1217
118.142.18.24 0:0:0:0:0:ffff:768e:1218
118.142.18.25 0:0:0:0:0:ffff:768e:1219
118.142.18.26 0:0:0:0:0:ffff:768e:121a
118.142.18.27 0:0:0:0:0:ffff:768e:121b
118.142.18.28 0:0:0:0:0:ffff:768e:121c
118.142.18.29 0:0:0:0:0:ffff:768e:121d
118.142.18.30 0:0:0:0:0:ffff:768e:121e
118.142.18.31 0:0:0:0:0:ffff:768e:121f
118.142.18.32 0:0:0:0:0:ffff:768e:1220
118.142.18.33 0:0:0:0:0:ffff:768e:1221
118.142.18.34 0:0:0:0:0:ffff:768e:1222
118.142.18.35 0:0:0:0:0:ffff:768e:1223
118.142.18.36 0:0:0:0:0:ffff:768e:1224
118.142.18.37 0:0:0:0:0:ffff:768e:1225
118.142.18.38 0:0:0:0:0:ffff:768e:1226
118.142.18.39 0:0:0:0:0:ffff:768e:1227
118.142.18.40 0:0:0:0:0:ffff:768e:1228
118.142.18.41 0:0:0:0:0:ffff:768e:1229
118.142.18.42 0:0:0:0:0:ffff:768e:122a
118.142.18.43 0:0:0:0:0:ffff:768e:122b
118.142.18.44 0:0:0:0:0:ffff:768e:122c
118.142.18.45 0:0:0:0:0:ffff:768e:122d
118.142.18.46 0:0:0:0:0:ffff:768e:122e
118.142.18.47 0:0:0:0:0:ffff:768e:122f
118.142.18.48 0:0:0:0:0:ffff:768e:1230
118.142.18.49 0:0:0:0:0:ffff:768e:1231
118.142.18.50 0:0:0:0:0:ffff:768e:1232
118.142.18.51 0:0:0:0:0:ffff:768e:1233
118.142.18.52 0:0:0:0:0:ffff:768e:1234
118.142.18.53 0:0:0:0:0:ffff:768e:1235
118.142.18.54 0:0:0:0:0:ffff:768e:1236
118.142.18.55 0:0:0:0:0:ffff:768e:1237
118.142.18.56 0:0:0:0:0:ffff:768e:1238
118.142.18.57 0:0:0:0:0:ffff:768e:1239
118.142.18.58 0:0:0:0:0:ffff:768e:123a
118.142.18.59 0:0:0:0:0:ffff:768e:123b
118.142.18.60 0:0:0:0:0:ffff:768e:123c


118.142.18.61 0:0:0:0:0:ffff:768e:123d
118.142.18.62 0:0:0:0:0:ffff:768e:123e
118.142.18.63 0:0:0:0:0:ffff:768e:123f
118.142.18.64 0:0:0:0:0:ffff:768e:1240
118.142.18.65 0:0:0:0:0:ffff:768e:1241
118.142.18.66 0:0:0:0:0:ffff:768e:1242
118.142.18.67 0:0:0:0:0:ffff:768e:1243
118.142.18.68 0:0:0:0:0:ffff:768e:1244
118.142.18.69 0:0:0:0:0:ffff:768e:1245
118.142.18.70 0:0:0:0:0:ffff:768e:1246
118.142.18.71 0:0:0:0:0:ffff:768e:1247
118.142.18.72 0:0:0:0:0:ffff:768e:1248
118.142.18.73 0:0:0:0:0:ffff:768e:1249
118.142.18.74 0:0:0:0:0:ffff:768e:124a
118.142.18.75 0:0:0:0:0:ffff:768e:124b
118.142.18.76 0:0:0:0:0:ffff:768e:124c
118.142.18.77 0:0:0:0:0:ffff:768e:124d
118.142.18.78 0:0:0:0:0:ffff:768e:124e
118.142.18.79 0:0:0:0:0:ffff:768e:124f
118.142.18.80 0:0:0:0:0:ffff:768e:1250
118.142.18.81 0:0:0:0:0:ffff:768e:1251
118.142.18.82 0:0:0:0:0:ffff:768e:1252
118.142.18.83 0:0:0:0:0:ffff:768e:1253
118.142.18.84 0:0:0:0:0:ffff:768e:1254
118.142.18.85 0:0:0:0:0:ffff:768e:1255
118.142.18.86 0:0:0:0:0:ffff:768e:1256
118.142.18.87 0:0:0:0:0:ffff:768e:1257
118.142.18.88 0:0:0:0:0:ffff:768e:1258
118.142.18.89 0:0:0:0:0:ffff:768e:1259
118.142.18.90 0:0:0:0:0:ffff:768e:125a
118.142.18.91 0:0:0:0:0:ffff:768e:125b
118.142.18.92 0:0:0:0:0:ffff:768e:125c
118.142.18.93 0:0:0:0:0:ffff:768e:125d
118.142.18.94 0:0:0:0:0:ffff:768e:125e
118.142.18.95 0:0:0:0:0:ffff:768e:125f
118.142.18.96 0:0:0:0:0:ffff:768e:1260
118.142.18.97 0:0:0:0:0:ffff:768e:1261
118.142.18.98 0:0:0:0:0:ffff:768e:1262
118.142.18.99 0:0:0:0:0:ffff:768e:1263
118.142.18.100 0:0:0:0:0:ffff:768e:1264
118.142.18.101 0:0:0:0:0:ffff:768e:1265
118.142.18.102 0:0:0:0:0:ffff:768e:1266
118.142.18.103 0:0:0:0:0:ffff:768e:1267
118.142.18.104 0:0:0:0:0:ffff:768e:1268
118.142.18.105 0:0:0:0:0:ffff:768e:1269
118.142.18.106 0:0:0:0:0:ffff:768e:126a
118.142.18.107 0:0:0:0:0:ffff:768e:126b
118.142.18.108 0:0:0:0:0:ffff:768e:126c
118.142.18.109 0:0:0:0:0:ffff:768e:126d
118.142.18.110 0:0:0:0:0:ffff:768e:126e
118.142.18.111 0:0:0:0:0:ffff:768e:126f
118.142.18.112 0:0:0:0:0:ffff:768e:1270
118.142.18.113 0:0:0:0:0:ffff:768e:1271
118.142.18.114 0:0:0:0:0:ffff:768e:1272
118.142.18.115 0:0:0:0:0:ffff:768e:1273
118.142.18.116 0:0:0:0:0:ffff:768e:1274
118.142.18.117 0:0:0:0:0:ffff:768e:1275
118.142.18.118 0:0:0:0:0:ffff:768e:1276
118.142.18.119 0:0:0:0:0:ffff:768e:1277
118.142.18.120 0:0:0:0:0:ffff:768e:1278


118.142.18.121 0:0:0:0:0:ffff:768e:1279
118.142.18.122 0:0:0:0:0:ffff:768e:127a
118.142.18.123 0:0:0:0:0:ffff:768e:127b
118.142.18.124 0:0:0:0:0:ffff:768e:127c
118.142.18.125 0:0:0:0:0:ffff:768e:127d
118.142.18.126 0:0:0:0:0:ffff:768e:127e
118.142.18.127 0:0:0:0:0:ffff:768e:127f
118.142.18.128 0:0:0:0:0:ffff:768e:1280
118.142.18.129 0:0:0:0:0:ffff:768e:1281
118.142.18.130 0:0:0:0:0:ffff:768e:1282
118.142.18.131 0:0:0:0:0:ffff:768e:1283
118.142.18.132 0:0:0:0:0:ffff:768e:1284
118.142.18.133 0:0:0:0:0:ffff:768e:1285
118.142.18.134 0:0:0:0:0:ffff:768e:1286
118.142.18.135 0:0:0:0:0:ffff:768e:1287
118.142.18.136 0:0:0:0:0:ffff:768e:1288
118.142.18.137 0:0:0:0:0:ffff:768e:1289
118.142.18.138 0:0:0:0:0:ffff:768e:128a
118.142.18.139 0:0:0:0:0:ffff:768e:128b
118.142.18.140 0:0:0:0:0:ffff:768e:128c
118.142.18.141 0:0:0:0:0:ffff:768e:128d
118.142.18.142 0:0:0:0:0:ffff:768e:128e
118.142.18.143 0:0:0:0:0:ffff:768e:128f
118.142.18.144 0:0:0:0:0:ffff:768e:1290
118.142.18.145 0:0:0:0:0:ffff:768e:1291
118.142.18.146 0:0:0:0:0:ffff:768e:1292
118.142.18.147 0:0:0:0:0:ffff:768e:1293
118.142.18.148 0:0:0:0:0:ffff:768e:1294
118.142.18.149 0:0:0:0:0:ffff:768e:1295
118.142.18.150 0:0:0:0:0:ffff:768e:1296
118.142.18.151 0:0:0:0:0:ffff:768e:1297
118.142.18.152 0:0:0:0:0:ffff:768e:1298
118.142.18.153 0:0:0:0:0:ffff:768e:1299
118.142.18.154 0:0:0:0:0:ffff:768e:129a
118.142.18.155 0:0:0:0:0:ffff:768e:129b
118.142.18.156 0:0:0:0:0:ffff:768e:129c
118.142.18.157 0:0:0:0:0:ffff:768e:129d
118.142.18.158 0:0:0:0:0:ffff:768e:129e
118.142.18.159 0:0:0:0:0:ffff:768e:129f
118.142.18.160 0:0:0:0:0:ffff:768e:12a0
118.142.18.161 0:0:0:0:0:ffff:768e:12a1
118.142.18.162 0:0:0:0:0:ffff:768e:12a2
118.142.18.163 0:0:0:0:0:ffff:768e:12a3
118.142.18.164 0:0:0:0:0:ffff:768e:12a4
118.142.18.165 0:0:0:0:0:ffff:768e:12a5
118.142.18.166 0:0:0:0:0:ffff:768e:12a6
118.142.18.167 0:0:0:0:0:ffff:768e:12a7
118.142.18.168 0:0:0:0:0:ffff:768e:12a8
118.142.18.169 0:0:0:0:0:ffff:768e:12a9
118.142.18.170 0:0:0:0:0:ffff:768e:12aa
118.142.18.171 0:0:0:0:0:ffff:768e:12ab
118.142.18.172 0:0:0:0:0:ffff:768e:12ac
118.142.18.173 0:0:0:0:0:ffff:768e:12ad
118.142.18.174 0:0:0:0:0:ffff:768e:12ae
118.142.18.175 0:0:0:0:0:ffff:768e:12af
118.142.18.176 0:0:0:0:0:ffff:768e:12b0
118.142.18.177 0:0:0:0:0:ffff:768e:12b1
118.142.18.178 0:0:0:0:0:ffff:768e:12b2
118.142.18.179 0:0:0:0:0:ffff:768e:12b3
118.142.18.180 0:0:0:0:0:ffff:768e:12b4


118.142.18.181 0:0:0:0:0:ffff:768e:12b5
118.142.18.182 0:0:0:0:0:ffff:768e:12b6
118.142.18.183 0:0:0:0:0:ffff:768e:12b7
118.142.18.184 0:0:0:0:0:ffff:768e:12b8
118.142.18.185 0:0:0:0:0:ffff:768e:12b9
118.142.18.186 0:0:0:0:0:ffff:768e:12ba
118.142.18.187 0:0:0:0:0:ffff:768e:12bb
118.142.18.188 0:0:0:0:0:ffff:768e:12bc
118.142.18.189 0:0:0:0:0:ffff:768e:12bd
118.142.18.190 0:0:0:0:0:ffff:768e:12be
118.142.18.191 0:0:0:0:0:ffff:768e:12bf
118.142.18.192 0:0:0:0:0:ffff:768e:12c0
118.142.18.193 0:0:0:0:0:ffff:768e:12c1
118.142.18.194 0:0:0:0:0:ffff:768e:12c2
118.142.18.195 0:0:0:0:0:ffff:768e:12c3
118.142.18.196 0:0:0:0:0:ffff:768e:12c4
118.142.18.197 0:0:0:0:0:ffff:768e:12c5
118.142.18.198 0:0:0:0:0:ffff:768e:12c6
118.142.18.199 0:0:0:0:0:ffff:768e:12c7
118.142.18.200 0:0:0:0:0:ffff:768e:12c8
118.142.18.201 0:0:0:0:0:ffff:768e:12c9
118.142.18.202 0:0:0:0:0:ffff:768e:12ca
118.142.18.203 0:0:0:0:0:ffff:768e:12cb
118.142.18.204 0:0:0:0:0:ffff:768e:12cc
118.142.18.205 0:0:0:0:0:ffff:768e:12cd
118.142.18.206 0:0:0:0:0:ffff:768e:12ce
118.142.18.207 0:0:0:0:0:ffff:768e:12cf
118.142.18.208 0:0:0:0:0:ffff:768e:12d0
118.142.18.209 0:0:0:0:0:ffff:768e:12d1
118.142.18.210 0:0:0:0:0:ffff:768e:12d2
118.142.18.211 0:0:0:0:0:ffff:768e:12d3
118.142.18.212 0:0:0:0:0:ffff:768e:12d4
118.142.18.213 0:0:0:0:0:ffff:768e:12d5
118.142.18.214 0:0:0:0:0:ffff:768e:12d6
118.142.18.215 0:0:0:0:0:ffff:768e:12d7
118.142.18.216 0:0:0:0:0:ffff:768e:12d8
118.142.18.217 0:0:0:0:0:ffff:768e:12d9
118.142.18.218 0:0:0:0:0:ffff:768e:12da
118.142.18.219 0:0:0:0:0:ffff:768e:12db
118.142.18.220 0:0:0:0:0:ffff:768e:12dc
118.142.18.221 0:0:0:0:0:ffff:768e:12dd
118.142.18.222 0:0:0:0:0:ffff:768e:12de
118.142.18.223 0:0:0:0:0:ffff:768e:12df
118.142.18.224 0:0:0:0:0:ffff:768e:12e0
118.142.18.225 0:0:0:0:0:ffff:768e:12e1
118.142.18.226 0:0:0:0:0:ffff:768e:12e2
118.142.18.227 0:0:0:0:0:ffff:768e:12e3
118.142.18.228 0:0:0:0:0:ffff:768e:12e4
118.142.18.229 0:0:0:0:0:ffff:768e:12e5
118.142.18.230 0:0:0:0:0:ffff:768e:12e6
118.142.18.231 0:0:0:0:0:ffff:768e:12e7
118.142.18.232 0:0:0:0:0:ffff:768e:12e8
118.142.18.233 0:0:0:0:0:ffff:768e:12e9
118.142.18.234 0:0:0:0:0:ffff:768e:12ea
118.142.18.235 0:0:0:0:0:ffff:768e:12eb
118.142.18.236 0:0:0:0:0:ffff:768e:12ec
118.142.18.237 0:0:0:0:0:ffff:768e:12ed
118.142.18.238 0:0:0:0:0:ffff:768e:12ee
118.142.18.239 0:0:0:0:0:ffff:768e:12ef
118.142.18.240 0:0:0:0:0:ffff:768e:12f0
118.142.18.241 0:0:0:0:0:ffff:768e:12f1
118.142.18.242 0:0:0:0:0:ffff:768e:12f2
118.142.18.243 0:0:0:0:0:ffff:768e:12f3
118.142.18.244 0:0:0:0:0:ffff:768e:12f4
118.142.18.245 0:0:0:0:0:ffff:768e:12f5
118.142.18.246 0:0:0:0:0:ffff:768e:12f6
118.142.18.247 0:0:0:0:0:ffff:768e:12f7
118.142.18.248 0:0:0:0:0:ffff:768e:12f8
118.142.18.249 0:0:0:0:0:ffff:768e:12f9
118.142.18.250 0:0:0:0:0:ffff:768e:12fa
118.142.18.251 0:0:0:0:0:ffff:768e:12fb
118.142.18.252 0:0:0:0:0:ffff:768e:12fc
118.142.18.253 0:0:0:0:0:ffff:768e:12fd
118.142.18.254 0:0:0:0:0:ffff:768e:12fe
118.142.18.255 0:0:0:0:0:ffff:768e:12ff


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.