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
65.121.115.1 0:0:0:0:0:ffff:4179:7301
65.121.115.2 0:0:0:0:0:ffff:4179:7302
65.121.115.3 0:0:0:0:0:ffff:4179:7303
65.121.115.4 0:0:0:0:0:ffff:4179:7304
65.121.115.5 0:0:0:0:0:ffff:4179:7305
65.121.115.6 0:0:0:0:0:ffff:4179:7306
65.121.115.7 0:0:0:0:0:ffff:4179:7307
65.121.115.8 0:0:0:0:0:ffff:4179:7308
65.121.115.9 0:0:0:0:0:ffff:4179:7309
65.121.115.10 0:0:0:0:0:ffff:4179:730a
65.121.115.11 0:0:0:0:0:ffff:4179:730b
65.121.115.12 0:0:0:0:0:ffff:4179:730c
65.121.115.13 0:0:0:0:0:ffff:4179:730d
65.121.115.14 0:0:0:0:0:ffff:4179:730e
65.121.115.15 0:0:0:0:0:ffff:4179:730f
65.121.115.16 0:0:0:0:0:ffff:4179:7310
65.121.115.17 0:0:0:0:0:ffff:4179:7311
65.121.115.18 0:0:0:0:0:ffff:4179:7312
65.121.115.19 0:0:0:0:0:ffff:4179:7313
65.121.115.20 0:0:0:0:0:ffff:4179:7314
65.121.115.21 0:0:0:0:0:ffff:4179:7315
65.121.115.22 0:0:0:0:0:ffff:4179:7316
65.121.115.23 0:0:0:0:0:ffff:4179:7317
65.121.115.24 0:0:0:0:0:ffff:4179:7318
65.121.115.25 0:0:0:0:0:ffff:4179:7319
65.121.115.26 0:0:0:0:0:ffff:4179:731a
65.121.115.27 0:0:0:0:0:ffff:4179:731b
65.121.115.28 0:0:0:0:0:ffff:4179:731c
65.121.115.29 0:0:0:0:0:ffff:4179:731d
65.121.115.30 0:0:0:0:0:ffff:4179:731e
65.121.115.31 0:0:0:0:0:ffff:4179:731f
65.121.115.32 0:0:0:0:0:ffff:4179:7320
65.121.115.33 0:0:0:0:0:ffff:4179:7321
65.121.115.34 0:0:0:0:0:ffff:4179:7322
65.121.115.35 0:0:0:0:0:ffff:4179:7323
65.121.115.36 0:0:0:0:0:ffff:4179:7324
65.121.115.37 0:0:0:0:0:ffff:4179:7325
65.121.115.38 0:0:0:0:0:ffff:4179:7326
65.121.115.39 0:0:0:0:0:ffff:4179:7327
65.121.115.40 0:0:0:0:0:ffff:4179:7328
65.121.115.41 0:0:0:0:0:ffff:4179:7329
65.121.115.42 0:0:0:0:0:ffff:4179:732a
65.121.115.43 0:0:0:0:0:ffff:4179:732b
65.121.115.44 0:0:0:0:0:ffff:4179:732c
65.121.115.45 0:0:0:0:0:ffff:4179:732d
65.121.115.46 0:0:0:0:0:ffff:4179:732e
65.121.115.47 0:0:0:0:0:ffff:4179:732f
65.121.115.48 0:0:0:0:0:ffff:4179:7330
65.121.115.49 0:0:0:0:0:ffff:4179:7331
65.121.115.50 0:0:0:0:0:ffff:4179:7332
65.121.115.51 0:0:0:0:0:ffff:4179:7333
65.121.115.52 0:0:0:0:0:ffff:4179:7334
65.121.115.53 0:0:0:0:0:ffff:4179:7335
65.121.115.54 0:0:0:0:0:ffff:4179:7336
65.121.115.55 0:0:0:0:0:ffff:4179:7337
65.121.115.56 0:0:0:0:0:ffff:4179:7338
65.121.115.57 0:0:0:0:0:ffff:4179:7339
65.121.115.58 0:0:0:0:0:ffff:4179:733a
65.121.115.59 0:0:0:0:0:ffff:4179:733b
65.121.115.60 0:0:0:0:0:ffff:4179:733c


65.121.115.61 0:0:0:0:0:ffff:4179:733d
65.121.115.62 0:0:0:0:0:ffff:4179:733e
65.121.115.63 0:0:0:0:0:ffff:4179:733f
65.121.115.64 0:0:0:0:0:ffff:4179:7340
65.121.115.65 0:0:0:0:0:ffff:4179:7341
65.121.115.66 0:0:0:0:0:ffff:4179:7342
65.121.115.67 0:0:0:0:0:ffff:4179:7343
65.121.115.68 0:0:0:0:0:ffff:4179:7344
65.121.115.69 0:0:0:0:0:ffff:4179:7345
65.121.115.70 0:0:0:0:0:ffff:4179:7346
65.121.115.71 0:0:0:0:0:ffff:4179:7347
65.121.115.72 0:0:0:0:0:ffff:4179:7348
65.121.115.73 0:0:0:0:0:ffff:4179:7349
65.121.115.74 0:0:0:0:0:ffff:4179:734a
65.121.115.75 0:0:0:0:0:ffff:4179:734b
65.121.115.76 0:0:0:0:0:ffff:4179:734c
65.121.115.77 0:0:0:0:0:ffff:4179:734d
65.121.115.78 0:0:0:0:0:ffff:4179:734e
65.121.115.79 0:0:0:0:0:ffff:4179:734f
65.121.115.80 0:0:0:0:0:ffff:4179:7350
65.121.115.81 0:0:0:0:0:ffff:4179:7351
65.121.115.82 0:0:0:0:0:ffff:4179:7352
65.121.115.83 0:0:0:0:0:ffff:4179:7353
65.121.115.84 0:0:0:0:0:ffff:4179:7354
65.121.115.85 0:0:0:0:0:ffff:4179:7355
65.121.115.86 0:0:0:0:0:ffff:4179:7356
65.121.115.87 0:0:0:0:0:ffff:4179:7357
65.121.115.88 0:0:0:0:0:ffff:4179:7358
65.121.115.89 0:0:0:0:0:ffff:4179:7359
65.121.115.90 0:0:0:0:0:ffff:4179:735a
65.121.115.91 0:0:0:0:0:ffff:4179:735b
65.121.115.92 0:0:0:0:0:ffff:4179:735c
65.121.115.93 0:0:0:0:0:ffff:4179:735d
65.121.115.94 0:0:0:0:0:ffff:4179:735e
65.121.115.95 0:0:0:0:0:ffff:4179:735f
65.121.115.96 0:0:0:0:0:ffff:4179:7360
65.121.115.97 0:0:0:0:0:ffff:4179:7361
65.121.115.98 0:0:0:0:0:ffff:4179:7362
65.121.115.99 0:0:0:0:0:ffff:4179:7363
65.121.115.100 0:0:0:0:0:ffff:4179:7364
65.121.115.101 0:0:0:0:0:ffff:4179:7365
65.121.115.102 0:0:0:0:0:ffff:4179:7366
65.121.115.103 0:0:0:0:0:ffff:4179:7367
65.121.115.104 0:0:0:0:0:ffff:4179:7368
65.121.115.105 0:0:0:0:0:ffff:4179:7369
65.121.115.106 0:0:0:0:0:ffff:4179:736a
65.121.115.107 0:0:0:0:0:ffff:4179:736b
65.121.115.108 0:0:0:0:0:ffff:4179:736c
65.121.115.109 0:0:0:0:0:ffff:4179:736d
65.121.115.110 0:0:0:0:0:ffff:4179:736e
65.121.115.111 0:0:0:0:0:ffff:4179:736f
65.121.115.112 0:0:0:0:0:ffff:4179:7370
65.121.115.113 0:0:0:0:0:ffff:4179:7371
65.121.115.114 0:0:0:0:0:ffff:4179:7372
65.121.115.115 0:0:0:0:0:ffff:4179:7373
65.121.115.116 0:0:0:0:0:ffff:4179:7374
65.121.115.117 0:0:0:0:0:ffff:4179:7375
65.121.115.118 0:0:0:0:0:ffff:4179:7376
65.121.115.119 0:0:0:0:0:ffff:4179:7377
65.121.115.120 0:0:0:0:0:ffff:4179:7378


65.121.115.121 0:0:0:0:0:ffff:4179:7379
65.121.115.122 0:0:0:0:0:ffff:4179:737a
65.121.115.123 0:0:0:0:0:ffff:4179:737b
65.121.115.124 0:0:0:0:0:ffff:4179:737c
65.121.115.125 0:0:0:0:0:ffff:4179:737d
65.121.115.126 0:0:0:0:0:ffff:4179:737e
65.121.115.127 0:0:0:0:0:ffff:4179:737f
65.121.115.128 0:0:0:0:0:ffff:4179:7380
65.121.115.129 0:0:0:0:0:ffff:4179:7381
65.121.115.130 0:0:0:0:0:ffff:4179:7382
65.121.115.131 0:0:0:0:0:ffff:4179:7383
65.121.115.132 0:0:0:0:0:ffff:4179:7384
65.121.115.133 0:0:0:0:0:ffff:4179:7385
65.121.115.134 0:0:0:0:0:ffff:4179:7386
65.121.115.135 0:0:0:0:0:ffff:4179:7387
65.121.115.136 0:0:0:0:0:ffff:4179:7388
65.121.115.137 0:0:0:0:0:ffff:4179:7389
65.121.115.138 0:0:0:0:0:ffff:4179:738a
65.121.115.139 0:0:0:0:0:ffff:4179:738b
65.121.115.140 0:0:0:0:0:ffff:4179:738c
65.121.115.141 0:0:0:0:0:ffff:4179:738d
65.121.115.142 0:0:0:0:0:ffff:4179:738e
65.121.115.143 0:0:0:0:0:ffff:4179:738f
65.121.115.144 0:0:0:0:0:ffff:4179:7390
65.121.115.145 0:0:0:0:0:ffff:4179:7391
65.121.115.146 0:0:0:0:0:ffff:4179:7392
65.121.115.147 0:0:0:0:0:ffff:4179:7393
65.121.115.148 0:0:0:0:0:ffff:4179:7394
65.121.115.149 0:0:0:0:0:ffff:4179:7395
65.121.115.150 0:0:0:0:0:ffff:4179:7396
65.121.115.151 0:0:0:0:0:ffff:4179:7397
65.121.115.152 0:0:0:0:0:ffff:4179:7398
65.121.115.153 0:0:0:0:0:ffff:4179:7399
65.121.115.154 0:0:0:0:0:ffff:4179:739a
65.121.115.155 0:0:0:0:0:ffff:4179:739b
65.121.115.156 0:0:0:0:0:ffff:4179:739c
65.121.115.157 0:0:0:0:0:ffff:4179:739d
65.121.115.158 0:0:0:0:0:ffff:4179:739e
65.121.115.159 0:0:0:0:0:ffff:4179:739f
65.121.115.160 0:0:0:0:0:ffff:4179:73a0
65.121.115.161 0:0:0:0:0:ffff:4179:73a1
65.121.115.162 0:0:0:0:0:ffff:4179:73a2
65.121.115.163 0:0:0:0:0:ffff:4179:73a3
65.121.115.164 0:0:0:0:0:ffff:4179:73a4
65.121.115.165 0:0:0:0:0:ffff:4179:73a5
65.121.115.166 0:0:0:0:0:ffff:4179:73a6
65.121.115.167 0:0:0:0:0:ffff:4179:73a7
65.121.115.168 0:0:0:0:0:ffff:4179:73a8
65.121.115.169 0:0:0:0:0:ffff:4179:73a9
65.121.115.170 0:0:0:0:0:ffff:4179:73aa
65.121.115.171 0:0:0:0:0:ffff:4179:73ab
65.121.115.172 0:0:0:0:0:ffff:4179:73ac
65.121.115.173 0:0:0:0:0:ffff:4179:73ad
65.121.115.174 0:0:0:0:0:ffff:4179:73ae
65.121.115.175 0:0:0:0:0:ffff:4179:73af
65.121.115.176 0:0:0:0:0:ffff:4179:73b0
65.121.115.177 0:0:0:0:0:ffff:4179:73b1
65.121.115.178 0:0:0:0:0:ffff:4179:73b2
65.121.115.179 0:0:0:0:0:ffff:4179:73b3
65.121.115.180 0:0:0:0:0:ffff:4179:73b4


65.121.115.181 0:0:0:0:0:ffff:4179:73b5
65.121.115.182 0:0:0:0:0:ffff:4179:73b6
65.121.115.183 0:0:0:0:0:ffff:4179:73b7
65.121.115.184 0:0:0:0:0:ffff:4179:73b8
65.121.115.185 0:0:0:0:0:ffff:4179:73b9
65.121.115.186 0:0:0:0:0:ffff:4179:73ba
65.121.115.187 0:0:0:0:0:ffff:4179:73bb
65.121.115.188 0:0:0:0:0:ffff:4179:73bc
65.121.115.189 0:0:0:0:0:ffff:4179:73bd
65.121.115.190 0:0:0:0:0:ffff:4179:73be
65.121.115.191 0:0:0:0:0:ffff:4179:73bf
65.121.115.192 0:0:0:0:0:ffff:4179:73c0
65.121.115.193 0:0:0:0:0:ffff:4179:73c1
65.121.115.194 0:0:0:0:0:ffff:4179:73c2
65.121.115.195 0:0:0:0:0:ffff:4179:73c3
65.121.115.196 0:0:0:0:0:ffff:4179:73c4
65.121.115.197 0:0:0:0:0:ffff:4179:73c5
65.121.115.198 0:0:0:0:0:ffff:4179:73c6
65.121.115.199 0:0:0:0:0:ffff:4179:73c7
65.121.115.200 0:0:0:0:0:ffff:4179:73c8
65.121.115.201 0:0:0:0:0:ffff:4179:73c9
65.121.115.202 0:0:0:0:0:ffff:4179:73ca
65.121.115.203 0:0:0:0:0:ffff:4179:73cb
65.121.115.204 0:0:0:0:0:ffff:4179:73cc
65.121.115.205 0:0:0:0:0:ffff:4179:73cd
65.121.115.206 0:0:0:0:0:ffff:4179:73ce
65.121.115.207 0:0:0:0:0:ffff:4179:73cf
65.121.115.208 0:0:0:0:0:ffff:4179:73d0
65.121.115.209 0:0:0:0:0:ffff:4179:73d1
65.121.115.210 0:0:0:0:0:ffff:4179:73d2
65.121.115.211 0:0:0:0:0:ffff:4179:73d3
65.121.115.212 0:0:0:0:0:ffff:4179:73d4
65.121.115.213 0:0:0:0:0:ffff:4179:73d5
65.121.115.214 0:0:0:0:0:ffff:4179:73d6
65.121.115.215 0:0:0:0:0:ffff:4179:73d7
65.121.115.216 0:0:0:0:0:ffff:4179:73d8
65.121.115.217 0:0:0:0:0:ffff:4179:73d9
65.121.115.218 0:0:0:0:0:ffff:4179:73da
65.121.115.219 0:0:0:0:0:ffff:4179:73db
65.121.115.220 0:0:0:0:0:ffff:4179:73dc
65.121.115.221 0:0:0:0:0:ffff:4179:73dd
65.121.115.222 0:0:0:0:0:ffff:4179:73de
65.121.115.223 0:0:0:0:0:ffff:4179:73df
65.121.115.224 0:0:0:0:0:ffff:4179:73e0
65.121.115.225 0:0:0:0:0:ffff:4179:73e1
65.121.115.226 0:0:0:0:0:ffff:4179:73e2
65.121.115.227 0:0:0:0:0:ffff:4179:73e3
65.121.115.228 0:0:0:0:0:ffff:4179:73e4
65.121.115.229 0:0:0:0:0:ffff:4179:73e5
65.121.115.230 0:0:0:0:0:ffff:4179:73e6
65.121.115.231 0:0:0:0:0:ffff:4179:73e7
65.121.115.232 0:0:0:0:0:ffff:4179:73e8
65.121.115.233 0:0:0:0:0:ffff:4179:73e9
65.121.115.234 0:0:0:0:0:ffff:4179:73ea
65.121.115.235 0:0:0:0:0:ffff:4179:73eb
65.121.115.236 0:0:0:0:0:ffff:4179:73ec
65.121.115.237 0:0:0:0:0:ffff:4179:73ed
65.121.115.238 0:0:0:0:0:ffff:4179:73ee
65.121.115.239 0:0:0:0:0:ffff:4179:73ef
65.121.115.240 0:0:0:0:0:ffff:4179:73f0
65.121.115.241 0:0:0:0:0:ffff:4179:73f1
65.121.115.242 0:0:0:0:0:ffff:4179:73f2
65.121.115.243 0:0:0:0:0:ffff:4179:73f3
65.121.115.244 0:0:0:0:0:ffff:4179:73f4
65.121.115.245 0:0:0:0:0:ffff:4179:73f5
65.121.115.246 0:0:0:0:0:ffff:4179:73f6
65.121.115.247 0:0:0:0:0:ffff:4179:73f7
65.121.115.248 0:0:0:0:0:ffff:4179:73f8
65.121.115.249 0:0:0:0:0:ffff:4179:73f9
65.121.115.250 0:0:0:0:0:ffff:4179:73fa
65.121.115.251 0:0:0:0:0:ffff:4179:73fb
65.121.115.252 0:0:0:0:0:ffff:4179:73fc
65.121.115.253 0:0:0:0:0:ffff:4179:73fd
65.121.115.254 0:0:0:0:0:ffff:4179:73fe
65.121.115.255 0:0:0:0:0:ffff:4179:73ff


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.