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
231.85.18.1 0:0:0:0:0:ffff:e755:1201
231.85.18.2 0:0:0:0:0:ffff:e755:1202
231.85.18.3 0:0:0:0:0:ffff:e755:1203
231.85.18.4 0:0:0:0:0:ffff:e755:1204
231.85.18.5 0:0:0:0:0:ffff:e755:1205
231.85.18.6 0:0:0:0:0:ffff:e755:1206
231.85.18.7 0:0:0:0:0:ffff:e755:1207
231.85.18.8 0:0:0:0:0:ffff:e755:1208
231.85.18.9 0:0:0:0:0:ffff:e755:1209
231.85.18.10 0:0:0:0:0:ffff:e755:120a
231.85.18.11 0:0:0:0:0:ffff:e755:120b
231.85.18.12 0:0:0:0:0:ffff:e755:120c
231.85.18.13 0:0:0:0:0:ffff:e755:120d
231.85.18.14 0:0:0:0:0:ffff:e755:120e
231.85.18.15 0:0:0:0:0:ffff:e755:120f
231.85.18.16 0:0:0:0:0:ffff:e755:1210
231.85.18.17 0:0:0:0:0:ffff:e755:1211
231.85.18.18 0:0:0:0:0:ffff:e755:1212
231.85.18.19 0:0:0:0:0:ffff:e755:1213
231.85.18.20 0:0:0:0:0:ffff:e755:1214
231.85.18.21 0:0:0:0:0:ffff:e755:1215
231.85.18.22 0:0:0:0:0:ffff:e755:1216
231.85.18.23 0:0:0:0:0:ffff:e755:1217
231.85.18.24 0:0:0:0:0:ffff:e755:1218
231.85.18.25 0:0:0:0:0:ffff:e755:1219
231.85.18.26 0:0:0:0:0:ffff:e755:121a
231.85.18.27 0:0:0:0:0:ffff:e755:121b
231.85.18.28 0:0:0:0:0:ffff:e755:121c
231.85.18.29 0:0:0:0:0:ffff:e755:121d
231.85.18.30 0:0:0:0:0:ffff:e755:121e
231.85.18.31 0:0:0:0:0:ffff:e755:121f
231.85.18.32 0:0:0:0:0:ffff:e755:1220
231.85.18.33 0:0:0:0:0:ffff:e755:1221
231.85.18.34 0:0:0:0:0:ffff:e755:1222
231.85.18.35 0:0:0:0:0:ffff:e755:1223
231.85.18.36 0:0:0:0:0:ffff:e755:1224
231.85.18.37 0:0:0:0:0:ffff:e755:1225
231.85.18.38 0:0:0:0:0:ffff:e755:1226
231.85.18.39 0:0:0:0:0:ffff:e755:1227
231.85.18.40 0:0:0:0:0:ffff:e755:1228
231.85.18.41 0:0:0:0:0:ffff:e755:1229
231.85.18.42 0:0:0:0:0:ffff:e755:122a
231.85.18.43 0:0:0:0:0:ffff:e755:122b
231.85.18.44 0:0:0:0:0:ffff:e755:122c
231.85.18.45 0:0:0:0:0:ffff:e755:122d
231.85.18.46 0:0:0:0:0:ffff:e755:122e
231.85.18.47 0:0:0:0:0:ffff:e755:122f
231.85.18.48 0:0:0:0:0:ffff:e755:1230
231.85.18.49 0:0:0:0:0:ffff:e755:1231
231.85.18.50 0:0:0:0:0:ffff:e755:1232
231.85.18.51 0:0:0:0:0:ffff:e755:1233
231.85.18.52 0:0:0:0:0:ffff:e755:1234
231.85.18.53 0:0:0:0:0:ffff:e755:1235
231.85.18.54 0:0:0:0:0:ffff:e755:1236
231.85.18.55 0:0:0:0:0:ffff:e755:1237
231.85.18.56 0:0:0:0:0:ffff:e755:1238
231.85.18.57 0:0:0:0:0:ffff:e755:1239
231.85.18.58 0:0:0:0:0:ffff:e755:123a
231.85.18.59 0:0:0:0:0:ffff:e755:123b
231.85.18.60 0:0:0:0:0:ffff:e755:123c


231.85.18.61 0:0:0:0:0:ffff:e755:123d
231.85.18.62 0:0:0:0:0:ffff:e755:123e
231.85.18.63 0:0:0:0:0:ffff:e755:123f
231.85.18.64 0:0:0:0:0:ffff:e755:1240
231.85.18.65 0:0:0:0:0:ffff:e755:1241
231.85.18.66 0:0:0:0:0:ffff:e755:1242
231.85.18.67 0:0:0:0:0:ffff:e755:1243
231.85.18.68 0:0:0:0:0:ffff:e755:1244
231.85.18.69 0:0:0:0:0:ffff:e755:1245
231.85.18.70 0:0:0:0:0:ffff:e755:1246
231.85.18.71 0:0:0:0:0:ffff:e755:1247
231.85.18.72 0:0:0:0:0:ffff:e755:1248
231.85.18.73 0:0:0:0:0:ffff:e755:1249
231.85.18.74 0:0:0:0:0:ffff:e755:124a
231.85.18.75 0:0:0:0:0:ffff:e755:124b
231.85.18.76 0:0:0:0:0:ffff:e755:124c
231.85.18.77 0:0:0:0:0:ffff:e755:124d
231.85.18.78 0:0:0:0:0:ffff:e755:124e
231.85.18.79 0:0:0:0:0:ffff:e755:124f
231.85.18.80 0:0:0:0:0:ffff:e755:1250
231.85.18.81 0:0:0:0:0:ffff:e755:1251
231.85.18.82 0:0:0:0:0:ffff:e755:1252
231.85.18.83 0:0:0:0:0:ffff:e755:1253
231.85.18.84 0:0:0:0:0:ffff:e755:1254
231.85.18.85 0:0:0:0:0:ffff:e755:1255
231.85.18.86 0:0:0:0:0:ffff:e755:1256
231.85.18.87 0:0:0:0:0:ffff:e755:1257
231.85.18.88 0:0:0:0:0:ffff:e755:1258
231.85.18.89 0:0:0:0:0:ffff:e755:1259
231.85.18.90 0:0:0:0:0:ffff:e755:125a
231.85.18.91 0:0:0:0:0:ffff:e755:125b
231.85.18.92 0:0:0:0:0:ffff:e755:125c
231.85.18.93 0:0:0:0:0:ffff:e755:125d
231.85.18.94 0:0:0:0:0:ffff:e755:125e
231.85.18.95 0:0:0:0:0:ffff:e755:125f
231.85.18.96 0:0:0:0:0:ffff:e755:1260
231.85.18.97 0:0:0:0:0:ffff:e755:1261
231.85.18.98 0:0:0:0:0:ffff:e755:1262
231.85.18.99 0:0:0:0:0:ffff:e755:1263
231.85.18.100 0:0:0:0:0:ffff:e755:1264
231.85.18.101 0:0:0:0:0:ffff:e755:1265
231.85.18.102 0:0:0:0:0:ffff:e755:1266
231.85.18.103 0:0:0:0:0:ffff:e755:1267
231.85.18.104 0:0:0:0:0:ffff:e755:1268
231.85.18.105 0:0:0:0:0:ffff:e755:1269
231.85.18.106 0:0:0:0:0:ffff:e755:126a
231.85.18.107 0:0:0:0:0:ffff:e755:126b
231.85.18.108 0:0:0:0:0:ffff:e755:126c
231.85.18.109 0:0:0:0:0:ffff:e755:126d
231.85.18.110 0:0:0:0:0:ffff:e755:126e
231.85.18.111 0:0:0:0:0:ffff:e755:126f
231.85.18.112 0:0:0:0:0:ffff:e755:1270
231.85.18.113 0:0:0:0:0:ffff:e755:1271
231.85.18.114 0:0:0:0:0:ffff:e755:1272
231.85.18.115 0:0:0:0:0:ffff:e755:1273
231.85.18.116 0:0:0:0:0:ffff:e755:1274
231.85.18.117 0:0:0:0:0:ffff:e755:1275
231.85.18.118 0:0:0:0:0:ffff:e755:1276
231.85.18.119 0:0:0:0:0:ffff:e755:1277
231.85.18.120 0:0:0:0:0:ffff:e755:1278


231.85.18.121 0:0:0:0:0:ffff:e755:1279
231.85.18.122 0:0:0:0:0:ffff:e755:127a
231.85.18.123 0:0:0:0:0:ffff:e755:127b
231.85.18.124 0:0:0:0:0:ffff:e755:127c
231.85.18.125 0:0:0:0:0:ffff:e755:127d
231.85.18.126 0:0:0:0:0:ffff:e755:127e
231.85.18.127 0:0:0:0:0:ffff:e755:127f
231.85.18.128 0:0:0:0:0:ffff:e755:1280
231.85.18.129 0:0:0:0:0:ffff:e755:1281
231.85.18.130 0:0:0:0:0:ffff:e755:1282
231.85.18.131 0:0:0:0:0:ffff:e755:1283
231.85.18.132 0:0:0:0:0:ffff:e755:1284
231.85.18.133 0:0:0:0:0:ffff:e755:1285
231.85.18.134 0:0:0:0:0:ffff:e755:1286
231.85.18.135 0:0:0:0:0:ffff:e755:1287
231.85.18.136 0:0:0:0:0:ffff:e755:1288
231.85.18.137 0:0:0:0:0:ffff:e755:1289
231.85.18.138 0:0:0:0:0:ffff:e755:128a
231.85.18.139 0:0:0:0:0:ffff:e755:128b
231.85.18.140 0:0:0:0:0:ffff:e755:128c
231.85.18.141 0:0:0:0:0:ffff:e755:128d
231.85.18.142 0:0:0:0:0:ffff:e755:128e
231.85.18.143 0:0:0:0:0:ffff:e755:128f
231.85.18.144 0:0:0:0:0:ffff:e755:1290
231.85.18.145 0:0:0:0:0:ffff:e755:1291
231.85.18.146 0:0:0:0:0:ffff:e755:1292
231.85.18.147 0:0:0:0:0:ffff:e755:1293
231.85.18.148 0:0:0:0:0:ffff:e755:1294
231.85.18.149 0:0:0:0:0:ffff:e755:1295
231.85.18.150 0:0:0:0:0:ffff:e755:1296
231.85.18.151 0:0:0:0:0:ffff:e755:1297
231.85.18.152 0:0:0:0:0:ffff:e755:1298
231.85.18.153 0:0:0:0:0:ffff:e755:1299
231.85.18.154 0:0:0:0:0:ffff:e755:129a
231.85.18.155 0:0:0:0:0:ffff:e755:129b
231.85.18.156 0:0:0:0:0:ffff:e755:129c
231.85.18.157 0:0:0:0:0:ffff:e755:129d
231.85.18.158 0:0:0:0:0:ffff:e755:129e
231.85.18.159 0:0:0:0:0:ffff:e755:129f
231.85.18.160 0:0:0:0:0:ffff:e755:12a0
231.85.18.161 0:0:0:0:0:ffff:e755:12a1
231.85.18.162 0:0:0:0:0:ffff:e755:12a2
231.85.18.163 0:0:0:0:0:ffff:e755:12a3
231.85.18.164 0:0:0:0:0:ffff:e755:12a4
231.85.18.165 0:0:0:0:0:ffff:e755:12a5
231.85.18.166 0:0:0:0:0:ffff:e755:12a6
231.85.18.167 0:0:0:0:0:ffff:e755:12a7
231.85.18.168 0:0:0:0:0:ffff:e755:12a8
231.85.18.169 0:0:0:0:0:ffff:e755:12a9
231.85.18.170 0:0:0:0:0:ffff:e755:12aa
231.85.18.171 0:0:0:0:0:ffff:e755:12ab
231.85.18.172 0:0:0:0:0:ffff:e755:12ac
231.85.18.173 0:0:0:0:0:ffff:e755:12ad
231.85.18.174 0:0:0:0:0:ffff:e755:12ae
231.85.18.175 0:0:0:0:0:ffff:e755:12af
231.85.18.176 0:0:0:0:0:ffff:e755:12b0
231.85.18.177 0:0:0:0:0:ffff:e755:12b1
231.85.18.178 0:0:0:0:0:ffff:e755:12b2
231.85.18.179 0:0:0:0:0:ffff:e755:12b3
231.85.18.180 0:0:0:0:0:ffff:e755:12b4


231.85.18.181 0:0:0:0:0:ffff:e755:12b5
231.85.18.182 0:0:0:0:0:ffff:e755:12b6
231.85.18.183 0:0:0:0:0:ffff:e755:12b7
231.85.18.184 0:0:0:0:0:ffff:e755:12b8
231.85.18.185 0:0:0:0:0:ffff:e755:12b9
231.85.18.186 0:0:0:0:0:ffff:e755:12ba
231.85.18.187 0:0:0:0:0:ffff:e755:12bb
231.85.18.188 0:0:0:0:0:ffff:e755:12bc
231.85.18.189 0:0:0:0:0:ffff:e755:12bd
231.85.18.190 0:0:0:0:0:ffff:e755:12be
231.85.18.191 0:0:0:0:0:ffff:e755:12bf
231.85.18.192 0:0:0:0:0:ffff:e755:12c0
231.85.18.193 0:0:0:0:0:ffff:e755:12c1
231.85.18.194 0:0:0:0:0:ffff:e755:12c2
231.85.18.195 0:0:0:0:0:ffff:e755:12c3
231.85.18.196 0:0:0:0:0:ffff:e755:12c4
231.85.18.197 0:0:0:0:0:ffff:e755:12c5
231.85.18.198 0:0:0:0:0:ffff:e755:12c6
231.85.18.199 0:0:0:0:0:ffff:e755:12c7
231.85.18.200 0:0:0:0:0:ffff:e755:12c8
231.85.18.201 0:0:0:0:0:ffff:e755:12c9
231.85.18.202 0:0:0:0:0:ffff:e755:12ca
231.85.18.203 0:0:0:0:0:ffff:e755:12cb
231.85.18.204 0:0:0:0:0:ffff:e755:12cc
231.85.18.205 0:0:0:0:0:ffff:e755:12cd
231.85.18.206 0:0:0:0:0:ffff:e755:12ce
231.85.18.207 0:0:0:0:0:ffff:e755:12cf
231.85.18.208 0:0:0:0:0:ffff:e755:12d0
231.85.18.209 0:0:0:0:0:ffff:e755:12d1
231.85.18.210 0:0:0:0:0:ffff:e755:12d2
231.85.18.211 0:0:0:0:0:ffff:e755:12d3
231.85.18.212 0:0:0:0:0:ffff:e755:12d4
231.85.18.213 0:0:0:0:0:ffff:e755:12d5
231.85.18.214 0:0:0:0:0:ffff:e755:12d6
231.85.18.215 0:0:0:0:0:ffff:e755:12d7
231.85.18.216 0:0:0:0:0:ffff:e755:12d8
231.85.18.217 0:0:0:0:0:ffff:e755:12d9
231.85.18.218 0:0:0:0:0:ffff:e755:12da
231.85.18.219 0:0:0:0:0:ffff:e755:12db
231.85.18.220 0:0:0:0:0:ffff:e755:12dc
231.85.18.221 0:0:0:0:0:ffff:e755:12dd
231.85.18.222 0:0:0:0:0:ffff:e755:12de
231.85.18.223 0:0:0:0:0:ffff:e755:12df
231.85.18.224 0:0:0:0:0:ffff:e755:12e0
231.85.18.225 0:0:0:0:0:ffff:e755:12e1
231.85.18.226 0:0:0:0:0:ffff:e755:12e2
231.85.18.227 0:0:0:0:0:ffff:e755:12e3
231.85.18.228 0:0:0:0:0:ffff:e755:12e4
231.85.18.229 0:0:0:0:0:ffff:e755:12e5
231.85.18.230 0:0:0:0:0:ffff:e755:12e6
231.85.18.231 0:0:0:0:0:ffff:e755:12e7
231.85.18.232 0:0:0:0:0:ffff:e755:12e8
231.85.18.233 0:0:0:0:0:ffff:e755:12e9
231.85.18.234 0:0:0:0:0:ffff:e755:12ea
231.85.18.235 0:0:0:0:0:ffff:e755:12eb
231.85.18.236 0:0:0:0:0:ffff:e755:12ec
231.85.18.237 0:0:0:0:0:ffff:e755:12ed
231.85.18.238 0:0:0:0:0:ffff:e755:12ee
231.85.18.239 0:0:0:0:0:ffff:e755:12ef
231.85.18.240 0:0:0:0:0:ffff:e755:12f0
231.85.18.241 0:0:0:0:0:ffff:e755:12f1
231.85.18.242 0:0:0:0:0:ffff:e755:12f2
231.85.18.243 0:0:0:0:0:ffff:e755:12f3
231.85.18.244 0:0:0:0:0:ffff:e755:12f4
231.85.18.245 0:0:0:0:0:ffff:e755:12f5
231.85.18.246 0:0:0:0:0:ffff:e755:12f6
231.85.18.247 0:0:0:0:0:ffff:e755:12f7
231.85.18.248 0:0:0:0:0:ffff:e755:12f8
231.85.18.249 0:0:0:0:0:ffff:e755:12f9
231.85.18.250 0:0:0:0:0:ffff:e755:12fa
231.85.18.251 0:0:0:0:0:ffff:e755:12fb
231.85.18.252 0:0:0:0:0:ffff:e755:12fc
231.85.18.253 0:0:0:0:0:ffff:e755:12fd
231.85.18.254 0:0:0:0:0:ffff:e755:12fe
231.85.18.255 0:0:0:0:0:ffff:e755:12ff


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.