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
197.129.99.1 0:0:0:0:0:ffff:c581:6301
197.129.99.2 0:0:0:0:0:ffff:c581:6302
197.129.99.3 0:0:0:0:0:ffff:c581:6303
197.129.99.4 0:0:0:0:0:ffff:c581:6304
197.129.99.5 0:0:0:0:0:ffff:c581:6305
197.129.99.6 0:0:0:0:0:ffff:c581:6306
197.129.99.7 0:0:0:0:0:ffff:c581:6307
197.129.99.8 0:0:0:0:0:ffff:c581:6308
197.129.99.9 0:0:0:0:0:ffff:c581:6309
197.129.99.10 0:0:0:0:0:ffff:c581:630a
197.129.99.11 0:0:0:0:0:ffff:c581:630b
197.129.99.12 0:0:0:0:0:ffff:c581:630c
197.129.99.13 0:0:0:0:0:ffff:c581:630d
197.129.99.14 0:0:0:0:0:ffff:c581:630e
197.129.99.15 0:0:0:0:0:ffff:c581:630f
197.129.99.16 0:0:0:0:0:ffff:c581:6310
197.129.99.17 0:0:0:0:0:ffff:c581:6311
197.129.99.18 0:0:0:0:0:ffff:c581:6312
197.129.99.19 0:0:0:0:0:ffff:c581:6313
197.129.99.20 0:0:0:0:0:ffff:c581:6314
197.129.99.21 0:0:0:0:0:ffff:c581:6315
197.129.99.22 0:0:0:0:0:ffff:c581:6316
197.129.99.23 0:0:0:0:0:ffff:c581:6317
197.129.99.24 0:0:0:0:0:ffff:c581:6318
197.129.99.25 0:0:0:0:0:ffff:c581:6319
197.129.99.26 0:0:0:0:0:ffff:c581:631a
197.129.99.27 0:0:0:0:0:ffff:c581:631b
197.129.99.28 0:0:0:0:0:ffff:c581:631c
197.129.99.29 0:0:0:0:0:ffff:c581:631d
197.129.99.30 0:0:0:0:0:ffff:c581:631e
197.129.99.31 0:0:0:0:0:ffff:c581:631f
197.129.99.32 0:0:0:0:0:ffff:c581:6320
197.129.99.33 0:0:0:0:0:ffff:c581:6321
197.129.99.34 0:0:0:0:0:ffff:c581:6322
197.129.99.35 0:0:0:0:0:ffff:c581:6323
197.129.99.36 0:0:0:0:0:ffff:c581:6324
197.129.99.37 0:0:0:0:0:ffff:c581:6325
197.129.99.38 0:0:0:0:0:ffff:c581:6326
197.129.99.39 0:0:0:0:0:ffff:c581:6327
197.129.99.40 0:0:0:0:0:ffff:c581:6328
197.129.99.41 0:0:0:0:0:ffff:c581:6329
197.129.99.42 0:0:0:0:0:ffff:c581:632a
197.129.99.43 0:0:0:0:0:ffff:c581:632b
197.129.99.44 0:0:0:0:0:ffff:c581:632c
197.129.99.45 0:0:0:0:0:ffff:c581:632d
197.129.99.46 0:0:0:0:0:ffff:c581:632e
197.129.99.47 0:0:0:0:0:ffff:c581:632f
197.129.99.48 0:0:0:0:0:ffff:c581:6330
197.129.99.49 0:0:0:0:0:ffff:c581:6331
197.129.99.50 0:0:0:0:0:ffff:c581:6332
197.129.99.51 0:0:0:0:0:ffff:c581:6333
197.129.99.52 0:0:0:0:0:ffff:c581:6334
197.129.99.53 0:0:0:0:0:ffff:c581:6335
197.129.99.54 0:0:0:0:0:ffff:c581:6336
197.129.99.55 0:0:0:0:0:ffff:c581:6337
197.129.99.56 0:0:0:0:0:ffff:c581:6338
197.129.99.57 0:0:0:0:0:ffff:c581:6339
197.129.99.58 0:0:0:0:0:ffff:c581:633a
197.129.99.59 0:0:0:0:0:ffff:c581:633b
197.129.99.60 0:0:0:0:0:ffff:c581:633c


197.129.99.61 0:0:0:0:0:ffff:c581:633d
197.129.99.62 0:0:0:0:0:ffff:c581:633e
197.129.99.63 0:0:0:0:0:ffff:c581:633f
197.129.99.64 0:0:0:0:0:ffff:c581:6340
197.129.99.65 0:0:0:0:0:ffff:c581:6341
197.129.99.66 0:0:0:0:0:ffff:c581:6342
197.129.99.67 0:0:0:0:0:ffff:c581:6343
197.129.99.68 0:0:0:0:0:ffff:c581:6344
197.129.99.69 0:0:0:0:0:ffff:c581:6345
197.129.99.70 0:0:0:0:0:ffff:c581:6346
197.129.99.71 0:0:0:0:0:ffff:c581:6347
197.129.99.72 0:0:0:0:0:ffff:c581:6348
197.129.99.73 0:0:0:0:0:ffff:c581:6349
197.129.99.74 0:0:0:0:0:ffff:c581:634a
197.129.99.75 0:0:0:0:0:ffff:c581:634b
197.129.99.76 0:0:0:0:0:ffff:c581:634c
197.129.99.77 0:0:0:0:0:ffff:c581:634d
197.129.99.78 0:0:0:0:0:ffff:c581:634e
197.129.99.79 0:0:0:0:0:ffff:c581:634f
197.129.99.80 0:0:0:0:0:ffff:c581:6350
197.129.99.81 0:0:0:0:0:ffff:c581:6351
197.129.99.82 0:0:0:0:0:ffff:c581:6352
197.129.99.83 0:0:0:0:0:ffff:c581:6353
197.129.99.84 0:0:0:0:0:ffff:c581:6354
197.129.99.85 0:0:0:0:0:ffff:c581:6355
197.129.99.86 0:0:0:0:0:ffff:c581:6356
197.129.99.87 0:0:0:0:0:ffff:c581:6357
197.129.99.88 0:0:0:0:0:ffff:c581:6358
197.129.99.89 0:0:0:0:0:ffff:c581:6359
197.129.99.90 0:0:0:0:0:ffff:c581:635a
197.129.99.91 0:0:0:0:0:ffff:c581:635b
197.129.99.92 0:0:0:0:0:ffff:c581:635c
197.129.99.93 0:0:0:0:0:ffff:c581:635d
197.129.99.94 0:0:0:0:0:ffff:c581:635e
197.129.99.95 0:0:0:0:0:ffff:c581:635f
197.129.99.96 0:0:0:0:0:ffff:c581:6360
197.129.99.97 0:0:0:0:0:ffff:c581:6361
197.129.99.98 0:0:0:0:0:ffff:c581:6362
197.129.99.99 0:0:0:0:0:ffff:c581:6363
197.129.99.100 0:0:0:0:0:ffff:c581:6364
197.129.99.101 0:0:0:0:0:ffff:c581:6365
197.129.99.102 0:0:0:0:0:ffff:c581:6366
197.129.99.103 0:0:0:0:0:ffff:c581:6367
197.129.99.104 0:0:0:0:0:ffff:c581:6368
197.129.99.105 0:0:0:0:0:ffff:c581:6369
197.129.99.106 0:0:0:0:0:ffff:c581:636a
197.129.99.107 0:0:0:0:0:ffff:c581:636b
197.129.99.108 0:0:0:0:0:ffff:c581:636c
197.129.99.109 0:0:0:0:0:ffff:c581:636d
197.129.99.110 0:0:0:0:0:ffff:c581:636e
197.129.99.111 0:0:0:0:0:ffff:c581:636f
197.129.99.112 0:0:0:0:0:ffff:c581:6370
197.129.99.113 0:0:0:0:0:ffff:c581:6371
197.129.99.114 0:0:0:0:0:ffff:c581:6372
197.129.99.115 0:0:0:0:0:ffff:c581:6373
197.129.99.116 0:0:0:0:0:ffff:c581:6374
197.129.99.117 0:0:0:0:0:ffff:c581:6375
197.129.99.118 0:0:0:0:0:ffff:c581:6376
197.129.99.119 0:0:0:0:0:ffff:c581:6377
197.129.99.120 0:0:0:0:0:ffff:c581:6378


197.129.99.121 0:0:0:0:0:ffff:c581:6379
197.129.99.122 0:0:0:0:0:ffff:c581:637a
197.129.99.123 0:0:0:0:0:ffff:c581:637b
197.129.99.124 0:0:0:0:0:ffff:c581:637c
197.129.99.125 0:0:0:0:0:ffff:c581:637d
197.129.99.126 0:0:0:0:0:ffff:c581:637e
197.129.99.127 0:0:0:0:0:ffff:c581:637f
197.129.99.128 0:0:0:0:0:ffff:c581:6380
197.129.99.129 0:0:0:0:0:ffff:c581:6381
197.129.99.130 0:0:0:0:0:ffff:c581:6382
197.129.99.131 0:0:0:0:0:ffff:c581:6383
197.129.99.132 0:0:0:0:0:ffff:c581:6384
197.129.99.133 0:0:0:0:0:ffff:c581:6385
197.129.99.134 0:0:0:0:0:ffff:c581:6386
197.129.99.135 0:0:0:0:0:ffff:c581:6387
197.129.99.136 0:0:0:0:0:ffff:c581:6388
197.129.99.137 0:0:0:0:0:ffff:c581:6389
197.129.99.138 0:0:0:0:0:ffff:c581:638a
197.129.99.139 0:0:0:0:0:ffff:c581:638b
197.129.99.140 0:0:0:0:0:ffff:c581:638c
197.129.99.141 0:0:0:0:0:ffff:c581:638d
197.129.99.142 0:0:0:0:0:ffff:c581:638e
197.129.99.143 0:0:0:0:0:ffff:c581:638f
197.129.99.144 0:0:0:0:0:ffff:c581:6390
197.129.99.145 0:0:0:0:0:ffff:c581:6391
197.129.99.146 0:0:0:0:0:ffff:c581:6392
197.129.99.147 0:0:0:0:0:ffff:c581:6393
197.129.99.148 0:0:0:0:0:ffff:c581:6394
197.129.99.149 0:0:0:0:0:ffff:c581:6395
197.129.99.150 0:0:0:0:0:ffff:c581:6396
197.129.99.151 0:0:0:0:0:ffff:c581:6397
197.129.99.152 0:0:0:0:0:ffff:c581:6398
197.129.99.153 0:0:0:0:0:ffff:c581:6399
197.129.99.154 0:0:0:0:0:ffff:c581:639a
197.129.99.155 0:0:0:0:0:ffff:c581:639b
197.129.99.156 0:0:0:0:0:ffff:c581:639c
197.129.99.157 0:0:0:0:0:ffff:c581:639d
197.129.99.158 0:0:0:0:0:ffff:c581:639e
197.129.99.159 0:0:0:0:0:ffff:c581:639f
197.129.99.160 0:0:0:0:0:ffff:c581:63a0
197.129.99.161 0:0:0:0:0:ffff:c581:63a1
197.129.99.162 0:0:0:0:0:ffff:c581:63a2
197.129.99.163 0:0:0:0:0:ffff:c581:63a3
197.129.99.164 0:0:0:0:0:ffff:c581:63a4
197.129.99.165 0:0:0:0:0:ffff:c581:63a5
197.129.99.166 0:0:0:0:0:ffff:c581:63a6
197.129.99.167 0:0:0:0:0:ffff:c581:63a7
197.129.99.168 0:0:0:0:0:ffff:c581:63a8
197.129.99.169 0:0:0:0:0:ffff:c581:63a9
197.129.99.170 0:0:0:0:0:ffff:c581:63aa
197.129.99.171 0:0:0:0:0:ffff:c581:63ab
197.129.99.172 0:0:0:0:0:ffff:c581:63ac
197.129.99.173 0:0:0:0:0:ffff:c581:63ad
197.129.99.174 0:0:0:0:0:ffff:c581:63ae
197.129.99.175 0:0:0:0:0:ffff:c581:63af
197.129.99.176 0:0:0:0:0:ffff:c581:63b0
197.129.99.177 0:0:0:0:0:ffff:c581:63b1
197.129.99.178 0:0:0:0:0:ffff:c581:63b2
197.129.99.179 0:0:0:0:0:ffff:c581:63b3
197.129.99.180 0:0:0:0:0:ffff:c581:63b4


197.129.99.181 0:0:0:0:0:ffff:c581:63b5
197.129.99.182 0:0:0:0:0:ffff:c581:63b6
197.129.99.183 0:0:0:0:0:ffff:c581:63b7
197.129.99.184 0:0:0:0:0:ffff:c581:63b8
197.129.99.185 0:0:0:0:0:ffff:c581:63b9
197.129.99.186 0:0:0:0:0:ffff:c581:63ba
197.129.99.187 0:0:0:0:0:ffff:c581:63bb
197.129.99.188 0:0:0:0:0:ffff:c581:63bc
197.129.99.189 0:0:0:0:0:ffff:c581:63bd
197.129.99.190 0:0:0:0:0:ffff:c581:63be
197.129.99.191 0:0:0:0:0:ffff:c581:63bf
197.129.99.192 0:0:0:0:0:ffff:c581:63c0
197.129.99.193 0:0:0:0:0:ffff:c581:63c1
197.129.99.194 0:0:0:0:0:ffff:c581:63c2
197.129.99.195 0:0:0:0:0:ffff:c581:63c3
197.129.99.196 0:0:0:0:0:ffff:c581:63c4
197.129.99.197 0:0:0:0:0:ffff:c581:63c5
197.129.99.198 0:0:0:0:0:ffff:c581:63c6
197.129.99.199 0:0:0:0:0:ffff:c581:63c7
197.129.99.200 0:0:0:0:0:ffff:c581:63c8
197.129.99.201 0:0:0:0:0:ffff:c581:63c9
197.129.99.202 0:0:0:0:0:ffff:c581:63ca
197.129.99.203 0:0:0:0:0:ffff:c581:63cb
197.129.99.204 0:0:0:0:0:ffff:c581:63cc
197.129.99.205 0:0:0:0:0:ffff:c581:63cd
197.129.99.206 0:0:0:0:0:ffff:c581:63ce
197.129.99.207 0:0:0:0:0:ffff:c581:63cf
197.129.99.208 0:0:0:0:0:ffff:c581:63d0
197.129.99.209 0:0:0:0:0:ffff:c581:63d1
197.129.99.210 0:0:0:0:0:ffff:c581:63d2
197.129.99.211 0:0:0:0:0:ffff:c581:63d3
197.129.99.212 0:0:0:0:0:ffff:c581:63d4
197.129.99.213 0:0:0:0:0:ffff:c581:63d5
197.129.99.214 0:0:0:0:0:ffff:c581:63d6
197.129.99.215 0:0:0:0:0:ffff:c581:63d7
197.129.99.216 0:0:0:0:0:ffff:c581:63d8
197.129.99.217 0:0:0:0:0:ffff:c581:63d9
197.129.99.218 0:0:0:0:0:ffff:c581:63da
197.129.99.219 0:0:0:0:0:ffff:c581:63db
197.129.99.220 0:0:0:0:0:ffff:c581:63dc
197.129.99.221 0:0:0:0:0:ffff:c581:63dd
197.129.99.222 0:0:0:0:0:ffff:c581:63de
197.129.99.223 0:0:0:0:0:ffff:c581:63df
197.129.99.224 0:0:0:0:0:ffff:c581:63e0
197.129.99.225 0:0:0:0:0:ffff:c581:63e1
197.129.99.226 0:0:0:0:0:ffff:c581:63e2
197.129.99.227 0:0:0:0:0:ffff:c581:63e3
197.129.99.228 0:0:0:0:0:ffff:c581:63e4
197.129.99.229 0:0:0:0:0:ffff:c581:63e5
197.129.99.230 0:0:0:0:0:ffff:c581:63e6
197.129.99.231 0:0:0:0:0:ffff:c581:63e7
197.129.99.232 0:0:0:0:0:ffff:c581:63e8
197.129.99.233 0:0:0:0:0:ffff:c581:63e9
197.129.99.234 0:0:0:0:0:ffff:c581:63ea
197.129.99.235 0:0:0:0:0:ffff:c581:63eb
197.129.99.236 0:0:0:0:0:ffff:c581:63ec
197.129.99.237 0:0:0:0:0:ffff:c581:63ed
197.129.99.238 0:0:0:0:0:ffff:c581:63ee
197.129.99.239 0:0:0:0:0:ffff:c581:63ef
197.129.99.240 0:0:0:0:0:ffff:c581:63f0
197.129.99.241 0:0:0:0:0:ffff:c581:63f1
197.129.99.242 0:0:0:0:0:ffff:c581:63f2
197.129.99.243 0:0:0:0:0:ffff:c581:63f3
197.129.99.244 0:0:0:0:0:ffff:c581:63f4
197.129.99.245 0:0:0:0:0:ffff:c581:63f5
197.129.99.246 0:0:0:0:0:ffff:c581:63f6
197.129.99.247 0:0:0:0:0:ffff:c581:63f7
197.129.99.248 0:0:0:0:0:ffff:c581:63f8
197.129.99.249 0:0:0:0:0:ffff:c581:63f9
197.129.99.250 0:0:0:0:0:ffff:c581:63fa
197.129.99.251 0:0:0:0:0:ffff:c581:63fb
197.129.99.252 0:0:0:0:0:ffff:c581:63fc
197.129.99.253 0:0:0:0:0:ffff:c581:63fd
197.129.99.254 0:0:0:0:0:ffff:c581:63fe
197.129.99.255 0:0:0:0:0:ffff:c581:63ff


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.