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
71.137.18.1 0:0:0:0:0:ffff:4789:1201
71.137.18.2 0:0:0:0:0:ffff:4789:1202
71.137.18.3 0:0:0:0:0:ffff:4789:1203
71.137.18.4 0:0:0:0:0:ffff:4789:1204
71.137.18.5 0:0:0:0:0:ffff:4789:1205
71.137.18.6 0:0:0:0:0:ffff:4789:1206
71.137.18.7 0:0:0:0:0:ffff:4789:1207
71.137.18.8 0:0:0:0:0:ffff:4789:1208
71.137.18.9 0:0:0:0:0:ffff:4789:1209
71.137.18.10 0:0:0:0:0:ffff:4789:120a
71.137.18.11 0:0:0:0:0:ffff:4789:120b
71.137.18.12 0:0:0:0:0:ffff:4789:120c
71.137.18.13 0:0:0:0:0:ffff:4789:120d
71.137.18.14 0:0:0:0:0:ffff:4789:120e
71.137.18.15 0:0:0:0:0:ffff:4789:120f
71.137.18.16 0:0:0:0:0:ffff:4789:1210
71.137.18.17 0:0:0:0:0:ffff:4789:1211
71.137.18.18 0:0:0:0:0:ffff:4789:1212
71.137.18.19 0:0:0:0:0:ffff:4789:1213
71.137.18.20 0:0:0:0:0:ffff:4789:1214
71.137.18.21 0:0:0:0:0:ffff:4789:1215
71.137.18.22 0:0:0:0:0:ffff:4789:1216
71.137.18.23 0:0:0:0:0:ffff:4789:1217
71.137.18.24 0:0:0:0:0:ffff:4789:1218
71.137.18.25 0:0:0:0:0:ffff:4789:1219
71.137.18.26 0:0:0:0:0:ffff:4789:121a
71.137.18.27 0:0:0:0:0:ffff:4789:121b
71.137.18.28 0:0:0:0:0:ffff:4789:121c
71.137.18.29 0:0:0:0:0:ffff:4789:121d
71.137.18.30 0:0:0:0:0:ffff:4789:121e
71.137.18.31 0:0:0:0:0:ffff:4789:121f
71.137.18.32 0:0:0:0:0:ffff:4789:1220
71.137.18.33 0:0:0:0:0:ffff:4789:1221
71.137.18.34 0:0:0:0:0:ffff:4789:1222
71.137.18.35 0:0:0:0:0:ffff:4789:1223
71.137.18.36 0:0:0:0:0:ffff:4789:1224
71.137.18.37 0:0:0:0:0:ffff:4789:1225
71.137.18.38 0:0:0:0:0:ffff:4789:1226
71.137.18.39 0:0:0:0:0:ffff:4789:1227
71.137.18.40 0:0:0:0:0:ffff:4789:1228
71.137.18.41 0:0:0:0:0:ffff:4789:1229
71.137.18.42 0:0:0:0:0:ffff:4789:122a
71.137.18.43 0:0:0:0:0:ffff:4789:122b
71.137.18.44 0:0:0:0:0:ffff:4789:122c
71.137.18.45 0:0:0:0:0:ffff:4789:122d
71.137.18.46 0:0:0:0:0:ffff:4789:122e
71.137.18.47 0:0:0:0:0:ffff:4789:122f
71.137.18.48 0:0:0:0:0:ffff:4789:1230
71.137.18.49 0:0:0:0:0:ffff:4789:1231
71.137.18.50 0:0:0:0:0:ffff:4789:1232
71.137.18.51 0:0:0:0:0:ffff:4789:1233
71.137.18.52 0:0:0:0:0:ffff:4789:1234
71.137.18.53 0:0:0:0:0:ffff:4789:1235
71.137.18.54 0:0:0:0:0:ffff:4789:1236
71.137.18.55 0:0:0:0:0:ffff:4789:1237
71.137.18.56 0:0:0:0:0:ffff:4789:1238
71.137.18.57 0:0:0:0:0:ffff:4789:1239
71.137.18.58 0:0:0:0:0:ffff:4789:123a
71.137.18.59 0:0:0:0:0:ffff:4789:123b
71.137.18.60 0:0:0:0:0:ffff:4789:123c


71.137.18.61 0:0:0:0:0:ffff:4789:123d
71.137.18.62 0:0:0:0:0:ffff:4789:123e
71.137.18.63 0:0:0:0:0:ffff:4789:123f
71.137.18.64 0:0:0:0:0:ffff:4789:1240
71.137.18.65 0:0:0:0:0:ffff:4789:1241
71.137.18.66 0:0:0:0:0:ffff:4789:1242
71.137.18.67 0:0:0:0:0:ffff:4789:1243
71.137.18.68 0:0:0:0:0:ffff:4789:1244
71.137.18.69 0:0:0:0:0:ffff:4789:1245
71.137.18.70 0:0:0:0:0:ffff:4789:1246
71.137.18.71 0:0:0:0:0:ffff:4789:1247
71.137.18.72 0:0:0:0:0:ffff:4789:1248
71.137.18.73 0:0:0:0:0:ffff:4789:1249
71.137.18.74 0:0:0:0:0:ffff:4789:124a
71.137.18.75 0:0:0:0:0:ffff:4789:124b
71.137.18.76 0:0:0:0:0:ffff:4789:124c
71.137.18.77 0:0:0:0:0:ffff:4789:124d
71.137.18.78 0:0:0:0:0:ffff:4789:124e
71.137.18.79 0:0:0:0:0:ffff:4789:124f
71.137.18.80 0:0:0:0:0:ffff:4789:1250
71.137.18.81 0:0:0:0:0:ffff:4789:1251
71.137.18.82 0:0:0:0:0:ffff:4789:1252
71.137.18.83 0:0:0:0:0:ffff:4789:1253
71.137.18.84 0:0:0:0:0:ffff:4789:1254
71.137.18.85 0:0:0:0:0:ffff:4789:1255
71.137.18.86 0:0:0:0:0:ffff:4789:1256
71.137.18.87 0:0:0:0:0:ffff:4789:1257
71.137.18.88 0:0:0:0:0:ffff:4789:1258
71.137.18.89 0:0:0:0:0:ffff:4789:1259
71.137.18.90 0:0:0:0:0:ffff:4789:125a
71.137.18.91 0:0:0:0:0:ffff:4789:125b
71.137.18.92 0:0:0:0:0:ffff:4789:125c
71.137.18.93 0:0:0:0:0:ffff:4789:125d
71.137.18.94 0:0:0:0:0:ffff:4789:125e
71.137.18.95 0:0:0:0:0:ffff:4789:125f
71.137.18.96 0:0:0:0:0:ffff:4789:1260
71.137.18.97 0:0:0:0:0:ffff:4789:1261
71.137.18.98 0:0:0:0:0:ffff:4789:1262
71.137.18.99 0:0:0:0:0:ffff:4789:1263
71.137.18.100 0:0:0:0:0:ffff:4789:1264
71.137.18.101 0:0:0:0:0:ffff:4789:1265
71.137.18.102 0:0:0:0:0:ffff:4789:1266
71.137.18.103 0:0:0:0:0:ffff:4789:1267
71.137.18.104 0:0:0:0:0:ffff:4789:1268
71.137.18.105 0:0:0:0:0:ffff:4789:1269
71.137.18.106 0:0:0:0:0:ffff:4789:126a
71.137.18.107 0:0:0:0:0:ffff:4789:126b
71.137.18.108 0:0:0:0:0:ffff:4789:126c
71.137.18.109 0:0:0:0:0:ffff:4789:126d
71.137.18.110 0:0:0:0:0:ffff:4789:126e
71.137.18.111 0:0:0:0:0:ffff:4789:126f
71.137.18.112 0:0:0:0:0:ffff:4789:1270
71.137.18.113 0:0:0:0:0:ffff:4789:1271
71.137.18.114 0:0:0:0:0:ffff:4789:1272
71.137.18.115 0:0:0:0:0:ffff:4789:1273
71.137.18.116 0:0:0:0:0:ffff:4789:1274
71.137.18.117 0:0:0:0:0:ffff:4789:1275
71.137.18.118 0:0:0:0:0:ffff:4789:1276
71.137.18.119 0:0:0:0:0:ffff:4789:1277
71.137.18.120 0:0:0:0:0:ffff:4789:1278


71.137.18.121 0:0:0:0:0:ffff:4789:1279
71.137.18.122 0:0:0:0:0:ffff:4789:127a
71.137.18.123 0:0:0:0:0:ffff:4789:127b
71.137.18.124 0:0:0:0:0:ffff:4789:127c
71.137.18.125 0:0:0:0:0:ffff:4789:127d
71.137.18.126 0:0:0:0:0:ffff:4789:127e
71.137.18.127 0:0:0:0:0:ffff:4789:127f
71.137.18.128 0:0:0:0:0:ffff:4789:1280
71.137.18.129 0:0:0:0:0:ffff:4789:1281
71.137.18.130 0:0:0:0:0:ffff:4789:1282
71.137.18.131 0:0:0:0:0:ffff:4789:1283
71.137.18.132 0:0:0:0:0:ffff:4789:1284
71.137.18.133 0:0:0:0:0:ffff:4789:1285
71.137.18.134 0:0:0:0:0:ffff:4789:1286
71.137.18.135 0:0:0:0:0:ffff:4789:1287
71.137.18.136 0:0:0:0:0:ffff:4789:1288
71.137.18.137 0:0:0:0:0:ffff:4789:1289
71.137.18.138 0:0:0:0:0:ffff:4789:128a
71.137.18.139 0:0:0:0:0:ffff:4789:128b
71.137.18.140 0:0:0:0:0:ffff:4789:128c
71.137.18.141 0:0:0:0:0:ffff:4789:128d
71.137.18.142 0:0:0:0:0:ffff:4789:128e
71.137.18.143 0:0:0:0:0:ffff:4789:128f
71.137.18.144 0:0:0:0:0:ffff:4789:1290
71.137.18.145 0:0:0:0:0:ffff:4789:1291
71.137.18.146 0:0:0:0:0:ffff:4789:1292
71.137.18.147 0:0:0:0:0:ffff:4789:1293
71.137.18.148 0:0:0:0:0:ffff:4789:1294
71.137.18.149 0:0:0:0:0:ffff:4789:1295
71.137.18.150 0:0:0:0:0:ffff:4789:1296
71.137.18.151 0:0:0:0:0:ffff:4789:1297
71.137.18.152 0:0:0:0:0:ffff:4789:1298
71.137.18.153 0:0:0:0:0:ffff:4789:1299
71.137.18.154 0:0:0:0:0:ffff:4789:129a
71.137.18.155 0:0:0:0:0:ffff:4789:129b
71.137.18.156 0:0:0:0:0:ffff:4789:129c
71.137.18.157 0:0:0:0:0:ffff:4789:129d
71.137.18.158 0:0:0:0:0:ffff:4789:129e
71.137.18.159 0:0:0:0:0:ffff:4789:129f
71.137.18.160 0:0:0:0:0:ffff:4789:12a0
71.137.18.161 0:0:0:0:0:ffff:4789:12a1
71.137.18.162 0:0:0:0:0:ffff:4789:12a2
71.137.18.163 0:0:0:0:0:ffff:4789:12a3
71.137.18.164 0:0:0:0:0:ffff:4789:12a4
71.137.18.165 0:0:0:0:0:ffff:4789:12a5
71.137.18.166 0:0:0:0:0:ffff:4789:12a6
71.137.18.167 0:0:0:0:0:ffff:4789:12a7
71.137.18.168 0:0:0:0:0:ffff:4789:12a8
71.137.18.169 0:0:0:0:0:ffff:4789:12a9
71.137.18.170 0:0:0:0:0:ffff:4789:12aa
71.137.18.171 0:0:0:0:0:ffff:4789:12ab
71.137.18.172 0:0:0:0:0:ffff:4789:12ac
71.137.18.173 0:0:0:0:0:ffff:4789:12ad
71.137.18.174 0:0:0:0:0:ffff:4789:12ae
71.137.18.175 0:0:0:0:0:ffff:4789:12af
71.137.18.176 0:0:0:0:0:ffff:4789:12b0
71.137.18.177 0:0:0:0:0:ffff:4789:12b1
71.137.18.178 0:0:0:0:0:ffff:4789:12b2
71.137.18.179 0:0:0:0:0:ffff:4789:12b3
71.137.18.180 0:0:0:0:0:ffff:4789:12b4


71.137.18.181 0:0:0:0:0:ffff:4789:12b5
71.137.18.182 0:0:0:0:0:ffff:4789:12b6
71.137.18.183 0:0:0:0:0:ffff:4789:12b7
71.137.18.184 0:0:0:0:0:ffff:4789:12b8
71.137.18.185 0:0:0:0:0:ffff:4789:12b9
71.137.18.186 0:0:0:0:0:ffff:4789:12ba
71.137.18.187 0:0:0:0:0:ffff:4789:12bb
71.137.18.188 0:0:0:0:0:ffff:4789:12bc
71.137.18.189 0:0:0:0:0:ffff:4789:12bd
71.137.18.190 0:0:0:0:0:ffff:4789:12be
71.137.18.191 0:0:0:0:0:ffff:4789:12bf
71.137.18.192 0:0:0:0:0:ffff:4789:12c0
71.137.18.193 0:0:0:0:0:ffff:4789:12c1
71.137.18.194 0:0:0:0:0:ffff:4789:12c2
71.137.18.195 0:0:0:0:0:ffff:4789:12c3
71.137.18.196 0:0:0:0:0:ffff:4789:12c4
71.137.18.197 0:0:0:0:0:ffff:4789:12c5
71.137.18.198 0:0:0:0:0:ffff:4789:12c6
71.137.18.199 0:0:0:0:0:ffff:4789:12c7
71.137.18.200 0:0:0:0:0:ffff:4789:12c8
71.137.18.201 0:0:0:0:0:ffff:4789:12c9
71.137.18.202 0:0:0:0:0:ffff:4789:12ca
71.137.18.203 0:0:0:0:0:ffff:4789:12cb
71.137.18.204 0:0:0:0:0:ffff:4789:12cc
71.137.18.205 0:0:0:0:0:ffff:4789:12cd
71.137.18.206 0:0:0:0:0:ffff:4789:12ce
71.137.18.207 0:0:0:0:0:ffff:4789:12cf
71.137.18.208 0:0:0:0:0:ffff:4789:12d0
71.137.18.209 0:0:0:0:0:ffff:4789:12d1
71.137.18.210 0:0:0:0:0:ffff:4789:12d2
71.137.18.211 0:0:0:0:0:ffff:4789:12d3
71.137.18.212 0:0:0:0:0:ffff:4789:12d4
71.137.18.213 0:0:0:0:0:ffff:4789:12d5
71.137.18.214 0:0:0:0:0:ffff:4789:12d6
71.137.18.215 0:0:0:0:0:ffff:4789:12d7
71.137.18.216 0:0:0:0:0:ffff:4789:12d8
71.137.18.217 0:0:0:0:0:ffff:4789:12d9
71.137.18.218 0:0:0:0:0:ffff:4789:12da
71.137.18.219 0:0:0:0:0:ffff:4789:12db
71.137.18.220 0:0:0:0:0:ffff:4789:12dc
71.137.18.221 0:0:0:0:0:ffff:4789:12dd
71.137.18.222 0:0:0:0:0:ffff:4789:12de
71.137.18.223 0:0:0:0:0:ffff:4789:12df
71.137.18.224 0:0:0:0:0:ffff:4789:12e0
71.137.18.225 0:0:0:0:0:ffff:4789:12e1
71.137.18.226 0:0:0:0:0:ffff:4789:12e2
71.137.18.227 0:0:0:0:0:ffff:4789:12e3
71.137.18.228 0:0:0:0:0:ffff:4789:12e4
71.137.18.229 0:0:0:0:0:ffff:4789:12e5
71.137.18.230 0:0:0:0:0:ffff:4789:12e6
71.137.18.231 0:0:0:0:0:ffff:4789:12e7
71.137.18.232 0:0:0:0:0:ffff:4789:12e8
71.137.18.233 0:0:0:0:0:ffff:4789:12e9
71.137.18.234 0:0:0:0:0:ffff:4789:12ea
71.137.18.235 0:0:0:0:0:ffff:4789:12eb
71.137.18.236 0:0:0:0:0:ffff:4789:12ec
71.137.18.237 0:0:0:0:0:ffff:4789:12ed
71.137.18.238 0:0:0:0:0:ffff:4789:12ee
71.137.18.239 0:0:0:0:0:ffff:4789:12ef
71.137.18.240 0:0:0:0:0:ffff:4789:12f0
71.137.18.241 0:0:0:0:0:ffff:4789:12f1
71.137.18.242 0:0:0:0:0:ffff:4789:12f2
71.137.18.243 0:0:0:0:0:ffff:4789:12f3
71.137.18.244 0:0:0:0:0:ffff:4789:12f4
71.137.18.245 0:0:0:0:0:ffff:4789:12f5
71.137.18.246 0:0:0:0:0:ffff:4789:12f6
71.137.18.247 0:0:0:0:0:ffff:4789:12f7
71.137.18.248 0:0:0:0:0:ffff:4789:12f8
71.137.18.249 0:0:0:0:0:ffff:4789:12f9
71.137.18.250 0:0:0:0:0:ffff:4789:12fa
71.137.18.251 0:0:0:0:0:ffff:4789:12fb
71.137.18.252 0:0:0:0:0:ffff:4789:12fc
71.137.18.253 0:0:0:0:0:ffff:4789:12fd
71.137.18.254 0:0:0:0:0:ffff:4789:12fe
71.137.18.255 0:0:0:0:0:ffff:4789:12ff


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.