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
65.121.195.1 0:0:0:0:0:ffff:4179:c301
65.121.195.2 0:0:0:0:0:ffff:4179:c302
65.121.195.3 0:0:0:0:0:ffff:4179:c303
65.121.195.4 0:0:0:0:0:ffff:4179:c304
65.121.195.5 0:0:0:0:0:ffff:4179:c305
65.121.195.6 0:0:0:0:0:ffff:4179:c306
65.121.195.7 0:0:0:0:0:ffff:4179:c307
65.121.195.8 0:0:0:0:0:ffff:4179:c308
65.121.195.9 0:0:0:0:0:ffff:4179:c309
65.121.195.10 0:0:0:0:0:ffff:4179:c30a
65.121.195.11 0:0:0:0:0:ffff:4179:c30b
65.121.195.12 0:0:0:0:0:ffff:4179:c30c
65.121.195.13 0:0:0:0:0:ffff:4179:c30d
65.121.195.14 0:0:0:0:0:ffff:4179:c30e
65.121.195.15 0:0:0:0:0:ffff:4179:c30f
65.121.195.16 0:0:0:0:0:ffff:4179:c310
65.121.195.17 0:0:0:0:0:ffff:4179:c311
65.121.195.18 0:0:0:0:0:ffff:4179:c312
65.121.195.19 0:0:0:0:0:ffff:4179:c313
65.121.195.20 0:0:0:0:0:ffff:4179:c314
65.121.195.21 0:0:0:0:0:ffff:4179:c315
65.121.195.22 0:0:0:0:0:ffff:4179:c316
65.121.195.23 0:0:0:0:0:ffff:4179:c317
65.121.195.24 0:0:0:0:0:ffff:4179:c318
65.121.195.25 0:0:0:0:0:ffff:4179:c319
65.121.195.26 0:0:0:0:0:ffff:4179:c31a
65.121.195.27 0:0:0:0:0:ffff:4179:c31b
65.121.195.28 0:0:0:0:0:ffff:4179:c31c
65.121.195.29 0:0:0:0:0:ffff:4179:c31d
65.121.195.30 0:0:0:0:0:ffff:4179:c31e
65.121.195.31 0:0:0:0:0:ffff:4179:c31f
65.121.195.32 0:0:0:0:0:ffff:4179:c320
65.121.195.33 0:0:0:0:0:ffff:4179:c321
65.121.195.34 0:0:0:0:0:ffff:4179:c322
65.121.195.35 0:0:0:0:0:ffff:4179:c323
65.121.195.36 0:0:0:0:0:ffff:4179:c324
65.121.195.37 0:0:0:0:0:ffff:4179:c325
65.121.195.38 0:0:0:0:0:ffff:4179:c326
65.121.195.39 0:0:0:0:0:ffff:4179:c327
65.121.195.40 0:0:0:0:0:ffff:4179:c328
65.121.195.41 0:0:0:0:0:ffff:4179:c329
65.121.195.42 0:0:0:0:0:ffff:4179:c32a
65.121.195.43 0:0:0:0:0:ffff:4179:c32b
65.121.195.44 0:0:0:0:0:ffff:4179:c32c
65.121.195.45 0:0:0:0:0:ffff:4179:c32d
65.121.195.46 0:0:0:0:0:ffff:4179:c32e
65.121.195.47 0:0:0:0:0:ffff:4179:c32f
65.121.195.48 0:0:0:0:0:ffff:4179:c330
65.121.195.49 0:0:0:0:0:ffff:4179:c331
65.121.195.50 0:0:0:0:0:ffff:4179:c332
65.121.195.51 0:0:0:0:0:ffff:4179:c333
65.121.195.52 0:0:0:0:0:ffff:4179:c334
65.121.195.53 0:0:0:0:0:ffff:4179:c335
65.121.195.54 0:0:0:0:0:ffff:4179:c336
65.121.195.55 0:0:0:0:0:ffff:4179:c337
65.121.195.56 0:0:0:0:0:ffff:4179:c338
65.121.195.57 0:0:0:0:0:ffff:4179:c339
65.121.195.58 0:0:0:0:0:ffff:4179:c33a
65.121.195.59 0:0:0:0:0:ffff:4179:c33b
65.121.195.60 0:0:0:0:0:ffff:4179:c33c


65.121.195.61 0:0:0:0:0:ffff:4179:c33d
65.121.195.62 0:0:0:0:0:ffff:4179:c33e
65.121.195.63 0:0:0:0:0:ffff:4179:c33f
65.121.195.64 0:0:0:0:0:ffff:4179:c340
65.121.195.65 0:0:0:0:0:ffff:4179:c341
65.121.195.66 0:0:0:0:0:ffff:4179:c342
65.121.195.67 0:0:0:0:0:ffff:4179:c343
65.121.195.68 0:0:0:0:0:ffff:4179:c344
65.121.195.69 0:0:0:0:0:ffff:4179:c345
65.121.195.70 0:0:0:0:0:ffff:4179:c346
65.121.195.71 0:0:0:0:0:ffff:4179:c347
65.121.195.72 0:0:0:0:0:ffff:4179:c348
65.121.195.73 0:0:0:0:0:ffff:4179:c349
65.121.195.74 0:0:0:0:0:ffff:4179:c34a
65.121.195.75 0:0:0:0:0:ffff:4179:c34b
65.121.195.76 0:0:0:0:0:ffff:4179:c34c
65.121.195.77 0:0:0:0:0:ffff:4179:c34d
65.121.195.78 0:0:0:0:0:ffff:4179:c34e
65.121.195.79 0:0:0:0:0:ffff:4179:c34f
65.121.195.80 0:0:0:0:0:ffff:4179:c350
65.121.195.81 0:0:0:0:0:ffff:4179:c351
65.121.195.82 0:0:0:0:0:ffff:4179:c352
65.121.195.83 0:0:0:0:0:ffff:4179:c353
65.121.195.84 0:0:0:0:0:ffff:4179:c354
65.121.195.85 0:0:0:0:0:ffff:4179:c355
65.121.195.86 0:0:0:0:0:ffff:4179:c356
65.121.195.87 0:0:0:0:0:ffff:4179:c357
65.121.195.88 0:0:0:0:0:ffff:4179:c358
65.121.195.89 0:0:0:0:0:ffff:4179:c359
65.121.195.90 0:0:0:0:0:ffff:4179:c35a
65.121.195.91 0:0:0:0:0:ffff:4179:c35b
65.121.195.92 0:0:0:0:0:ffff:4179:c35c
65.121.195.93 0:0:0:0:0:ffff:4179:c35d
65.121.195.94 0:0:0:0:0:ffff:4179:c35e
65.121.195.95 0:0:0:0:0:ffff:4179:c35f
65.121.195.96 0:0:0:0:0:ffff:4179:c360
65.121.195.97 0:0:0:0:0:ffff:4179:c361
65.121.195.98 0:0:0:0:0:ffff:4179:c362
65.121.195.99 0:0:0:0:0:ffff:4179:c363
65.121.195.100 0:0:0:0:0:ffff:4179:c364
65.121.195.101 0:0:0:0:0:ffff:4179:c365
65.121.195.102 0:0:0:0:0:ffff:4179:c366
65.121.195.103 0:0:0:0:0:ffff:4179:c367
65.121.195.104 0:0:0:0:0:ffff:4179:c368
65.121.195.105 0:0:0:0:0:ffff:4179:c369
65.121.195.106 0:0:0:0:0:ffff:4179:c36a
65.121.195.107 0:0:0:0:0:ffff:4179:c36b
65.121.195.108 0:0:0:0:0:ffff:4179:c36c
65.121.195.109 0:0:0:0:0:ffff:4179:c36d
65.121.195.110 0:0:0:0:0:ffff:4179:c36e
65.121.195.111 0:0:0:0:0:ffff:4179:c36f
65.121.195.112 0:0:0:0:0:ffff:4179:c370
65.121.195.113 0:0:0:0:0:ffff:4179:c371
65.121.195.114 0:0:0:0:0:ffff:4179:c372
65.121.195.115 0:0:0:0:0:ffff:4179:c373
65.121.195.116 0:0:0:0:0:ffff:4179:c374
65.121.195.117 0:0:0:0:0:ffff:4179:c375
65.121.195.118 0:0:0:0:0:ffff:4179:c376
65.121.195.119 0:0:0:0:0:ffff:4179:c377
65.121.195.120 0:0:0:0:0:ffff:4179:c378


65.121.195.121 0:0:0:0:0:ffff:4179:c379
65.121.195.122 0:0:0:0:0:ffff:4179:c37a
65.121.195.123 0:0:0:0:0:ffff:4179:c37b
65.121.195.124 0:0:0:0:0:ffff:4179:c37c
65.121.195.125 0:0:0:0:0:ffff:4179:c37d
65.121.195.126 0:0:0:0:0:ffff:4179:c37e
65.121.195.127 0:0:0:0:0:ffff:4179:c37f
65.121.195.128 0:0:0:0:0:ffff:4179:c380
65.121.195.129 0:0:0:0:0:ffff:4179:c381
65.121.195.130 0:0:0:0:0:ffff:4179:c382
65.121.195.131 0:0:0:0:0:ffff:4179:c383
65.121.195.132 0:0:0:0:0:ffff:4179:c384
65.121.195.133 0:0:0:0:0:ffff:4179:c385
65.121.195.134 0:0:0:0:0:ffff:4179:c386
65.121.195.135 0:0:0:0:0:ffff:4179:c387
65.121.195.136 0:0:0:0:0:ffff:4179:c388
65.121.195.137 0:0:0:0:0:ffff:4179:c389
65.121.195.138 0:0:0:0:0:ffff:4179:c38a
65.121.195.139 0:0:0:0:0:ffff:4179:c38b
65.121.195.140 0:0:0:0:0:ffff:4179:c38c
65.121.195.141 0:0:0:0:0:ffff:4179:c38d
65.121.195.142 0:0:0:0:0:ffff:4179:c38e
65.121.195.143 0:0:0:0:0:ffff:4179:c38f
65.121.195.144 0:0:0:0:0:ffff:4179:c390
65.121.195.145 0:0:0:0:0:ffff:4179:c391
65.121.195.146 0:0:0:0:0:ffff:4179:c392
65.121.195.147 0:0:0:0:0:ffff:4179:c393
65.121.195.148 0:0:0:0:0:ffff:4179:c394
65.121.195.149 0:0:0:0:0:ffff:4179:c395
65.121.195.150 0:0:0:0:0:ffff:4179:c396
65.121.195.151 0:0:0:0:0:ffff:4179:c397
65.121.195.152 0:0:0:0:0:ffff:4179:c398
65.121.195.153 0:0:0:0:0:ffff:4179:c399
65.121.195.154 0:0:0:0:0:ffff:4179:c39a
65.121.195.155 0:0:0:0:0:ffff:4179:c39b
65.121.195.156 0:0:0:0:0:ffff:4179:c39c
65.121.195.157 0:0:0:0:0:ffff:4179:c39d
65.121.195.158 0:0:0:0:0:ffff:4179:c39e
65.121.195.159 0:0:0:0:0:ffff:4179:c39f
65.121.195.160 0:0:0:0:0:ffff:4179:c3a0
65.121.195.161 0:0:0:0:0:ffff:4179:c3a1
65.121.195.162 0:0:0:0:0:ffff:4179:c3a2
65.121.195.163 0:0:0:0:0:ffff:4179:c3a3
65.121.195.164 0:0:0:0:0:ffff:4179:c3a4
65.121.195.165 0:0:0:0:0:ffff:4179:c3a5
65.121.195.166 0:0:0:0:0:ffff:4179:c3a6
65.121.195.167 0:0:0:0:0:ffff:4179:c3a7
65.121.195.168 0:0:0:0:0:ffff:4179:c3a8
65.121.195.169 0:0:0:0:0:ffff:4179:c3a9
65.121.195.170 0:0:0:0:0:ffff:4179:c3aa
65.121.195.171 0:0:0:0:0:ffff:4179:c3ab
65.121.195.172 0:0:0:0:0:ffff:4179:c3ac
65.121.195.173 0:0:0:0:0:ffff:4179:c3ad
65.121.195.174 0:0:0:0:0:ffff:4179:c3ae
65.121.195.175 0:0:0:0:0:ffff:4179:c3af
65.121.195.176 0:0:0:0:0:ffff:4179:c3b0
65.121.195.177 0:0:0:0:0:ffff:4179:c3b1
65.121.195.178 0:0:0:0:0:ffff:4179:c3b2
65.121.195.179 0:0:0:0:0:ffff:4179:c3b3
65.121.195.180 0:0:0:0:0:ffff:4179:c3b4


65.121.195.181 0:0:0:0:0:ffff:4179:c3b5
65.121.195.182 0:0:0:0:0:ffff:4179:c3b6
65.121.195.183 0:0:0:0:0:ffff:4179:c3b7
65.121.195.184 0:0:0:0:0:ffff:4179:c3b8
65.121.195.185 0:0:0:0:0:ffff:4179:c3b9
65.121.195.186 0:0:0:0:0:ffff:4179:c3ba
65.121.195.187 0:0:0:0:0:ffff:4179:c3bb
65.121.195.188 0:0:0:0:0:ffff:4179:c3bc
65.121.195.189 0:0:0:0:0:ffff:4179:c3bd
65.121.195.190 0:0:0:0:0:ffff:4179:c3be
65.121.195.191 0:0:0:0:0:ffff:4179:c3bf
65.121.195.192 0:0:0:0:0:ffff:4179:c3c0
65.121.195.193 0:0:0:0:0:ffff:4179:c3c1
65.121.195.194 0:0:0:0:0:ffff:4179:c3c2
65.121.195.195 0:0:0:0:0:ffff:4179:c3c3
65.121.195.196 0:0:0:0:0:ffff:4179:c3c4
65.121.195.197 0:0:0:0:0:ffff:4179:c3c5
65.121.195.198 0:0:0:0:0:ffff:4179:c3c6
65.121.195.199 0:0:0:0:0:ffff:4179:c3c7
65.121.195.200 0:0:0:0:0:ffff:4179:c3c8
65.121.195.201 0:0:0:0:0:ffff:4179:c3c9
65.121.195.202 0:0:0:0:0:ffff:4179:c3ca
65.121.195.203 0:0:0:0:0:ffff:4179:c3cb
65.121.195.204 0:0:0:0:0:ffff:4179:c3cc
65.121.195.205 0:0:0:0:0:ffff:4179:c3cd
65.121.195.206 0:0:0:0:0:ffff:4179:c3ce
65.121.195.207 0:0:0:0:0:ffff:4179:c3cf
65.121.195.208 0:0:0:0:0:ffff:4179:c3d0
65.121.195.209 0:0:0:0:0:ffff:4179:c3d1
65.121.195.210 0:0:0:0:0:ffff:4179:c3d2
65.121.195.211 0:0:0:0:0:ffff:4179:c3d3
65.121.195.212 0:0:0:0:0:ffff:4179:c3d4
65.121.195.213 0:0:0:0:0:ffff:4179:c3d5
65.121.195.214 0:0:0:0:0:ffff:4179:c3d6
65.121.195.215 0:0:0:0:0:ffff:4179:c3d7
65.121.195.216 0:0:0:0:0:ffff:4179:c3d8
65.121.195.217 0:0:0:0:0:ffff:4179:c3d9
65.121.195.218 0:0:0:0:0:ffff:4179:c3da
65.121.195.219 0:0:0:0:0:ffff:4179:c3db
65.121.195.220 0:0:0:0:0:ffff:4179:c3dc
65.121.195.221 0:0:0:0:0:ffff:4179:c3dd
65.121.195.222 0:0:0:0:0:ffff:4179:c3de
65.121.195.223 0:0:0:0:0:ffff:4179:c3df
65.121.195.224 0:0:0:0:0:ffff:4179:c3e0
65.121.195.225 0:0:0:0:0:ffff:4179:c3e1
65.121.195.226 0:0:0:0:0:ffff:4179:c3e2
65.121.195.227 0:0:0:0:0:ffff:4179:c3e3
65.121.195.228 0:0:0:0:0:ffff:4179:c3e4
65.121.195.229 0:0:0:0:0:ffff:4179:c3e5
65.121.195.230 0:0:0:0:0:ffff:4179:c3e6
65.121.195.231 0:0:0:0:0:ffff:4179:c3e7
65.121.195.232 0:0:0:0:0:ffff:4179:c3e8
65.121.195.233 0:0:0:0:0:ffff:4179:c3e9
65.121.195.234 0:0:0:0:0:ffff:4179:c3ea
65.121.195.235 0:0:0:0:0:ffff:4179:c3eb
65.121.195.236 0:0:0:0:0:ffff:4179:c3ec
65.121.195.237 0:0:0:0:0:ffff:4179:c3ed
65.121.195.238 0:0:0:0:0:ffff:4179:c3ee
65.121.195.239 0:0:0:0:0:ffff:4179:c3ef
65.121.195.240 0:0:0:0:0:ffff:4179:c3f0
65.121.195.241 0:0:0:0:0:ffff:4179:c3f1
65.121.195.242 0:0:0:0:0:ffff:4179:c3f2
65.121.195.243 0:0:0:0:0:ffff:4179:c3f3
65.121.195.244 0:0:0:0:0:ffff:4179:c3f4
65.121.195.245 0:0:0:0:0:ffff:4179:c3f5
65.121.195.246 0:0:0:0:0:ffff:4179:c3f6
65.121.195.247 0:0:0:0:0:ffff:4179:c3f7
65.121.195.248 0:0:0:0:0:ffff:4179:c3f8
65.121.195.249 0:0:0:0:0:ffff:4179:c3f9
65.121.195.250 0:0:0:0:0:ffff:4179:c3fa
65.121.195.251 0:0:0:0:0:ffff:4179:c3fb
65.121.195.252 0:0:0:0:0:ffff:4179:c3fc
65.121.195.253 0:0:0:0:0:ffff:4179:c3fd
65.121.195.254 0:0:0:0:0:ffff:4179:c3fe
65.121.195.255 0:0:0:0:0:ffff:4179:c3ff


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.