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
21.15.116.1 0:0:0:0:0:ffff:150f:7401
21.15.116.2 0:0:0:0:0:ffff:150f:7402
21.15.116.3 0:0:0:0:0:ffff:150f:7403
21.15.116.4 0:0:0:0:0:ffff:150f:7404
21.15.116.5 0:0:0:0:0:ffff:150f:7405
21.15.116.6 0:0:0:0:0:ffff:150f:7406
21.15.116.7 0:0:0:0:0:ffff:150f:7407
21.15.116.8 0:0:0:0:0:ffff:150f:7408
21.15.116.9 0:0:0:0:0:ffff:150f:7409
21.15.116.10 0:0:0:0:0:ffff:150f:740a
21.15.116.11 0:0:0:0:0:ffff:150f:740b
21.15.116.12 0:0:0:0:0:ffff:150f:740c
21.15.116.13 0:0:0:0:0:ffff:150f:740d
21.15.116.14 0:0:0:0:0:ffff:150f:740e
21.15.116.15 0:0:0:0:0:ffff:150f:740f
21.15.116.16 0:0:0:0:0:ffff:150f:7410
21.15.116.17 0:0:0:0:0:ffff:150f:7411
21.15.116.18 0:0:0:0:0:ffff:150f:7412
21.15.116.19 0:0:0:0:0:ffff:150f:7413
21.15.116.20 0:0:0:0:0:ffff:150f:7414
21.15.116.21 0:0:0:0:0:ffff:150f:7415
21.15.116.22 0:0:0:0:0:ffff:150f:7416
21.15.116.23 0:0:0:0:0:ffff:150f:7417
21.15.116.24 0:0:0:0:0:ffff:150f:7418
21.15.116.25 0:0:0:0:0:ffff:150f:7419
21.15.116.26 0:0:0:0:0:ffff:150f:741a
21.15.116.27 0:0:0:0:0:ffff:150f:741b
21.15.116.28 0:0:0:0:0:ffff:150f:741c
21.15.116.29 0:0:0:0:0:ffff:150f:741d
21.15.116.30 0:0:0:0:0:ffff:150f:741e
21.15.116.31 0:0:0:0:0:ffff:150f:741f
21.15.116.32 0:0:0:0:0:ffff:150f:7420
21.15.116.33 0:0:0:0:0:ffff:150f:7421
21.15.116.34 0:0:0:0:0:ffff:150f:7422
21.15.116.35 0:0:0:0:0:ffff:150f:7423
21.15.116.36 0:0:0:0:0:ffff:150f:7424
21.15.116.37 0:0:0:0:0:ffff:150f:7425
21.15.116.38 0:0:0:0:0:ffff:150f:7426
21.15.116.39 0:0:0:0:0:ffff:150f:7427
21.15.116.40 0:0:0:0:0:ffff:150f:7428
21.15.116.41 0:0:0:0:0:ffff:150f:7429
21.15.116.42 0:0:0:0:0:ffff:150f:742a
21.15.116.43 0:0:0:0:0:ffff:150f:742b
21.15.116.44 0:0:0:0:0:ffff:150f:742c
21.15.116.45 0:0:0:0:0:ffff:150f:742d
21.15.116.46 0:0:0:0:0:ffff:150f:742e
21.15.116.47 0:0:0:0:0:ffff:150f:742f
21.15.116.48 0:0:0:0:0:ffff:150f:7430
21.15.116.49 0:0:0:0:0:ffff:150f:7431
21.15.116.50 0:0:0:0:0:ffff:150f:7432
21.15.116.51 0:0:0:0:0:ffff:150f:7433
21.15.116.52 0:0:0:0:0:ffff:150f:7434
21.15.116.53 0:0:0:0:0:ffff:150f:7435
21.15.116.54 0:0:0:0:0:ffff:150f:7436
21.15.116.55 0:0:0:0:0:ffff:150f:7437
21.15.116.56 0:0:0:0:0:ffff:150f:7438
21.15.116.57 0:0:0:0:0:ffff:150f:7439
21.15.116.58 0:0:0:0:0:ffff:150f:743a
21.15.116.59 0:0:0:0:0:ffff:150f:743b
21.15.116.60 0:0:0:0:0:ffff:150f:743c


21.15.116.61 0:0:0:0:0:ffff:150f:743d
21.15.116.62 0:0:0:0:0:ffff:150f:743e
21.15.116.63 0:0:0:0:0:ffff:150f:743f
21.15.116.64 0:0:0:0:0:ffff:150f:7440
21.15.116.65 0:0:0:0:0:ffff:150f:7441
21.15.116.66 0:0:0:0:0:ffff:150f:7442
21.15.116.67 0:0:0:0:0:ffff:150f:7443
21.15.116.68 0:0:0:0:0:ffff:150f:7444
21.15.116.69 0:0:0:0:0:ffff:150f:7445
21.15.116.70 0:0:0:0:0:ffff:150f:7446
21.15.116.71 0:0:0:0:0:ffff:150f:7447
21.15.116.72 0:0:0:0:0:ffff:150f:7448
21.15.116.73 0:0:0:0:0:ffff:150f:7449
21.15.116.74 0:0:0:0:0:ffff:150f:744a
21.15.116.75 0:0:0:0:0:ffff:150f:744b
21.15.116.76 0:0:0:0:0:ffff:150f:744c
21.15.116.77 0:0:0:0:0:ffff:150f:744d
21.15.116.78 0:0:0:0:0:ffff:150f:744e
21.15.116.79 0:0:0:0:0:ffff:150f:744f
21.15.116.80 0:0:0:0:0:ffff:150f:7450
21.15.116.81 0:0:0:0:0:ffff:150f:7451
21.15.116.82 0:0:0:0:0:ffff:150f:7452
21.15.116.83 0:0:0:0:0:ffff:150f:7453
21.15.116.84 0:0:0:0:0:ffff:150f:7454
21.15.116.85 0:0:0:0:0:ffff:150f:7455
21.15.116.86 0:0:0:0:0:ffff:150f:7456
21.15.116.87 0:0:0:0:0:ffff:150f:7457
21.15.116.88 0:0:0:0:0:ffff:150f:7458
21.15.116.89 0:0:0:0:0:ffff:150f:7459
21.15.116.90 0:0:0:0:0:ffff:150f:745a
21.15.116.91 0:0:0:0:0:ffff:150f:745b
21.15.116.92 0:0:0:0:0:ffff:150f:745c
21.15.116.93 0:0:0:0:0:ffff:150f:745d
21.15.116.94 0:0:0:0:0:ffff:150f:745e
21.15.116.95 0:0:0:0:0:ffff:150f:745f
21.15.116.96 0:0:0:0:0:ffff:150f:7460
21.15.116.97 0:0:0:0:0:ffff:150f:7461
21.15.116.98 0:0:0:0:0:ffff:150f:7462
21.15.116.99 0:0:0:0:0:ffff:150f:7463
21.15.116.100 0:0:0:0:0:ffff:150f:7464
21.15.116.101 0:0:0:0:0:ffff:150f:7465
21.15.116.102 0:0:0:0:0:ffff:150f:7466
21.15.116.103 0:0:0:0:0:ffff:150f:7467
21.15.116.104 0:0:0:0:0:ffff:150f:7468
21.15.116.105 0:0:0:0:0:ffff:150f:7469
21.15.116.106 0:0:0:0:0:ffff:150f:746a
21.15.116.107 0:0:0:0:0:ffff:150f:746b
21.15.116.108 0:0:0:0:0:ffff:150f:746c
21.15.116.109 0:0:0:0:0:ffff:150f:746d
21.15.116.110 0:0:0:0:0:ffff:150f:746e
21.15.116.111 0:0:0:0:0:ffff:150f:746f
21.15.116.112 0:0:0:0:0:ffff:150f:7470
21.15.116.113 0:0:0:0:0:ffff:150f:7471
21.15.116.114 0:0:0:0:0:ffff:150f:7472
21.15.116.115 0:0:0:0:0:ffff:150f:7473
21.15.116.116 0:0:0:0:0:ffff:150f:7474
21.15.116.117 0:0:0:0:0:ffff:150f:7475
21.15.116.118 0:0:0:0:0:ffff:150f:7476
21.15.116.119 0:0:0:0:0:ffff:150f:7477
21.15.116.120 0:0:0:0:0:ffff:150f:7478


21.15.116.121 0:0:0:0:0:ffff:150f:7479
21.15.116.122 0:0:0:0:0:ffff:150f:747a
21.15.116.123 0:0:0:0:0:ffff:150f:747b
21.15.116.124 0:0:0:0:0:ffff:150f:747c
21.15.116.125 0:0:0:0:0:ffff:150f:747d
21.15.116.126 0:0:0:0:0:ffff:150f:747e
21.15.116.127 0:0:0:0:0:ffff:150f:747f
21.15.116.128 0:0:0:0:0:ffff:150f:7480
21.15.116.129 0:0:0:0:0:ffff:150f:7481
21.15.116.130 0:0:0:0:0:ffff:150f:7482
21.15.116.131 0:0:0:0:0:ffff:150f:7483
21.15.116.132 0:0:0:0:0:ffff:150f:7484
21.15.116.133 0:0:0:0:0:ffff:150f:7485
21.15.116.134 0:0:0:0:0:ffff:150f:7486
21.15.116.135 0:0:0:0:0:ffff:150f:7487
21.15.116.136 0:0:0:0:0:ffff:150f:7488
21.15.116.137 0:0:0:0:0:ffff:150f:7489
21.15.116.138 0:0:0:0:0:ffff:150f:748a
21.15.116.139 0:0:0:0:0:ffff:150f:748b
21.15.116.140 0:0:0:0:0:ffff:150f:748c
21.15.116.141 0:0:0:0:0:ffff:150f:748d
21.15.116.142 0:0:0:0:0:ffff:150f:748e
21.15.116.143 0:0:0:0:0:ffff:150f:748f
21.15.116.144 0:0:0:0:0:ffff:150f:7490
21.15.116.145 0:0:0:0:0:ffff:150f:7491
21.15.116.146 0:0:0:0:0:ffff:150f:7492
21.15.116.147 0:0:0:0:0:ffff:150f:7493
21.15.116.148 0:0:0:0:0:ffff:150f:7494
21.15.116.149 0:0:0:0:0:ffff:150f:7495
21.15.116.150 0:0:0:0:0:ffff:150f:7496
21.15.116.151 0:0:0:0:0:ffff:150f:7497
21.15.116.152 0:0:0:0:0:ffff:150f:7498
21.15.116.153 0:0:0:0:0:ffff:150f:7499
21.15.116.154 0:0:0:0:0:ffff:150f:749a
21.15.116.155 0:0:0:0:0:ffff:150f:749b
21.15.116.156 0:0:0:0:0:ffff:150f:749c
21.15.116.157 0:0:0:0:0:ffff:150f:749d
21.15.116.158 0:0:0:0:0:ffff:150f:749e
21.15.116.159 0:0:0:0:0:ffff:150f:749f
21.15.116.160 0:0:0:0:0:ffff:150f:74a0
21.15.116.161 0:0:0:0:0:ffff:150f:74a1
21.15.116.162 0:0:0:0:0:ffff:150f:74a2
21.15.116.163 0:0:0:0:0:ffff:150f:74a3
21.15.116.164 0:0:0:0:0:ffff:150f:74a4
21.15.116.165 0:0:0:0:0:ffff:150f:74a5
21.15.116.166 0:0:0:0:0:ffff:150f:74a6
21.15.116.167 0:0:0:0:0:ffff:150f:74a7
21.15.116.168 0:0:0:0:0:ffff:150f:74a8
21.15.116.169 0:0:0:0:0:ffff:150f:74a9
21.15.116.170 0:0:0:0:0:ffff:150f:74aa
21.15.116.171 0:0:0:0:0:ffff:150f:74ab
21.15.116.172 0:0:0:0:0:ffff:150f:74ac
21.15.116.173 0:0:0:0:0:ffff:150f:74ad
21.15.116.174 0:0:0:0:0:ffff:150f:74ae
21.15.116.175 0:0:0:0:0:ffff:150f:74af
21.15.116.176 0:0:0:0:0:ffff:150f:74b0
21.15.116.177 0:0:0:0:0:ffff:150f:74b1
21.15.116.178 0:0:0:0:0:ffff:150f:74b2
21.15.116.179 0:0:0:0:0:ffff:150f:74b3
21.15.116.180 0:0:0:0:0:ffff:150f:74b4


21.15.116.181 0:0:0:0:0:ffff:150f:74b5
21.15.116.182 0:0:0:0:0:ffff:150f:74b6
21.15.116.183 0:0:0:0:0:ffff:150f:74b7
21.15.116.184 0:0:0:0:0:ffff:150f:74b8
21.15.116.185 0:0:0:0:0:ffff:150f:74b9
21.15.116.186 0:0:0:0:0:ffff:150f:74ba
21.15.116.187 0:0:0:0:0:ffff:150f:74bb
21.15.116.188 0:0:0:0:0:ffff:150f:74bc
21.15.116.189 0:0:0:0:0:ffff:150f:74bd
21.15.116.190 0:0:0:0:0:ffff:150f:74be
21.15.116.191 0:0:0:0:0:ffff:150f:74bf
21.15.116.192 0:0:0:0:0:ffff:150f:74c0
21.15.116.193 0:0:0:0:0:ffff:150f:74c1
21.15.116.194 0:0:0:0:0:ffff:150f:74c2
21.15.116.195 0:0:0:0:0:ffff:150f:74c3
21.15.116.196 0:0:0:0:0:ffff:150f:74c4
21.15.116.197 0:0:0:0:0:ffff:150f:74c5
21.15.116.198 0:0:0:0:0:ffff:150f:74c6
21.15.116.199 0:0:0:0:0:ffff:150f:74c7
21.15.116.200 0:0:0:0:0:ffff:150f:74c8
21.15.116.201 0:0:0:0:0:ffff:150f:74c9
21.15.116.202 0:0:0:0:0:ffff:150f:74ca
21.15.116.203 0:0:0:0:0:ffff:150f:74cb
21.15.116.204 0:0:0:0:0:ffff:150f:74cc
21.15.116.205 0:0:0:0:0:ffff:150f:74cd
21.15.116.206 0:0:0:0:0:ffff:150f:74ce
21.15.116.207 0:0:0:0:0:ffff:150f:74cf
21.15.116.208 0:0:0:0:0:ffff:150f:74d0
21.15.116.209 0:0:0:0:0:ffff:150f:74d1
21.15.116.210 0:0:0:0:0:ffff:150f:74d2
21.15.116.211 0:0:0:0:0:ffff:150f:74d3
21.15.116.212 0:0:0:0:0:ffff:150f:74d4
21.15.116.213 0:0:0:0:0:ffff:150f:74d5
21.15.116.214 0:0:0:0:0:ffff:150f:74d6
21.15.116.215 0:0:0:0:0:ffff:150f:74d7
21.15.116.216 0:0:0:0:0:ffff:150f:74d8
21.15.116.217 0:0:0:0:0:ffff:150f:74d9
21.15.116.218 0:0:0:0:0:ffff:150f:74da
21.15.116.219 0:0:0:0:0:ffff:150f:74db
21.15.116.220 0:0:0:0:0:ffff:150f:74dc
21.15.116.221 0:0:0:0:0:ffff:150f:74dd
21.15.116.222 0:0:0:0:0:ffff:150f:74de
21.15.116.223 0:0:0:0:0:ffff:150f:74df
21.15.116.224 0:0:0:0:0:ffff:150f:74e0
21.15.116.225 0:0:0:0:0:ffff:150f:74e1
21.15.116.226 0:0:0:0:0:ffff:150f:74e2
21.15.116.227 0:0:0:0:0:ffff:150f:74e3
21.15.116.228 0:0:0:0:0:ffff:150f:74e4
21.15.116.229 0:0:0:0:0:ffff:150f:74e5
21.15.116.230 0:0:0:0:0:ffff:150f:74e6
21.15.116.231 0:0:0:0:0:ffff:150f:74e7
21.15.116.232 0:0:0:0:0:ffff:150f:74e8
21.15.116.233 0:0:0:0:0:ffff:150f:74e9
21.15.116.234 0:0:0:0:0:ffff:150f:74ea
21.15.116.235 0:0:0:0:0:ffff:150f:74eb
21.15.116.236 0:0:0:0:0:ffff:150f:74ec
21.15.116.237 0:0:0:0:0:ffff:150f:74ed
21.15.116.238 0:0:0:0:0:ffff:150f:74ee
21.15.116.239 0:0:0:0:0:ffff:150f:74ef
21.15.116.240 0:0:0:0:0:ffff:150f:74f0
21.15.116.241 0:0:0:0:0:ffff:150f:74f1
21.15.116.242 0:0:0:0:0:ffff:150f:74f2
21.15.116.243 0:0:0:0:0:ffff:150f:74f3
21.15.116.244 0:0:0:0:0:ffff:150f:74f4
21.15.116.245 0:0:0:0:0:ffff:150f:74f5
21.15.116.246 0:0:0:0:0:ffff:150f:74f6
21.15.116.247 0:0:0:0:0:ffff:150f:74f7
21.15.116.248 0:0:0:0:0:ffff:150f:74f8
21.15.116.249 0:0:0:0:0:ffff:150f:74f9
21.15.116.250 0:0:0:0:0:ffff:150f:74fa
21.15.116.251 0:0:0:0:0:ffff:150f:74fb
21.15.116.252 0:0:0:0:0:ffff:150f:74fc
21.15.116.253 0:0:0:0:0:ffff:150f:74fd
21.15.116.254 0:0:0:0:0:ffff:150f:74fe
21.15.116.255 0:0:0:0:0:ffff:150f:74ff


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.