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
144.21.28.1 0:0:0:0:0:ffff:9015:1c01
144.21.28.2 0:0:0:0:0:ffff:9015:1c02
144.21.28.3 0:0:0:0:0:ffff:9015:1c03
144.21.28.4 0:0:0:0:0:ffff:9015:1c04
144.21.28.5 0:0:0:0:0:ffff:9015:1c05
144.21.28.6 0:0:0:0:0:ffff:9015:1c06
144.21.28.7 0:0:0:0:0:ffff:9015:1c07
144.21.28.8 0:0:0:0:0:ffff:9015:1c08
144.21.28.9 0:0:0:0:0:ffff:9015:1c09
144.21.28.10 0:0:0:0:0:ffff:9015:1c0a
144.21.28.11 0:0:0:0:0:ffff:9015:1c0b
144.21.28.12 0:0:0:0:0:ffff:9015:1c0c
144.21.28.13 0:0:0:0:0:ffff:9015:1c0d
144.21.28.14 0:0:0:0:0:ffff:9015:1c0e
144.21.28.15 0:0:0:0:0:ffff:9015:1c0f
144.21.28.16 0:0:0:0:0:ffff:9015:1c10
144.21.28.17 0:0:0:0:0:ffff:9015:1c11
144.21.28.18 0:0:0:0:0:ffff:9015:1c12
144.21.28.19 0:0:0:0:0:ffff:9015:1c13
144.21.28.20 0:0:0:0:0:ffff:9015:1c14
144.21.28.21 0:0:0:0:0:ffff:9015:1c15
144.21.28.22 0:0:0:0:0:ffff:9015:1c16
144.21.28.23 0:0:0:0:0:ffff:9015:1c17
144.21.28.24 0:0:0:0:0:ffff:9015:1c18
144.21.28.25 0:0:0:0:0:ffff:9015:1c19
144.21.28.26 0:0:0:0:0:ffff:9015:1c1a
144.21.28.27 0:0:0:0:0:ffff:9015:1c1b
144.21.28.28 0:0:0:0:0:ffff:9015:1c1c
144.21.28.29 0:0:0:0:0:ffff:9015:1c1d
144.21.28.30 0:0:0:0:0:ffff:9015:1c1e
144.21.28.31 0:0:0:0:0:ffff:9015:1c1f
144.21.28.32 0:0:0:0:0:ffff:9015:1c20
144.21.28.33 0:0:0:0:0:ffff:9015:1c21
144.21.28.34 0:0:0:0:0:ffff:9015:1c22
144.21.28.35 0:0:0:0:0:ffff:9015:1c23
144.21.28.36 0:0:0:0:0:ffff:9015:1c24
144.21.28.37 0:0:0:0:0:ffff:9015:1c25
144.21.28.38 0:0:0:0:0:ffff:9015:1c26
144.21.28.39 0:0:0:0:0:ffff:9015:1c27
144.21.28.40 0:0:0:0:0:ffff:9015:1c28
144.21.28.41 0:0:0:0:0:ffff:9015:1c29
144.21.28.42 0:0:0:0:0:ffff:9015:1c2a
144.21.28.43 0:0:0:0:0:ffff:9015:1c2b
144.21.28.44 0:0:0:0:0:ffff:9015:1c2c
144.21.28.45 0:0:0:0:0:ffff:9015:1c2d
144.21.28.46 0:0:0:0:0:ffff:9015:1c2e
144.21.28.47 0:0:0:0:0:ffff:9015:1c2f
144.21.28.48 0:0:0:0:0:ffff:9015:1c30
144.21.28.49 0:0:0:0:0:ffff:9015:1c31
144.21.28.50 0:0:0:0:0:ffff:9015:1c32
144.21.28.51 0:0:0:0:0:ffff:9015:1c33
144.21.28.52 0:0:0:0:0:ffff:9015:1c34
144.21.28.53 0:0:0:0:0:ffff:9015:1c35
144.21.28.54 0:0:0:0:0:ffff:9015:1c36
144.21.28.55 0:0:0:0:0:ffff:9015:1c37
144.21.28.56 0:0:0:0:0:ffff:9015:1c38
144.21.28.57 0:0:0:0:0:ffff:9015:1c39
144.21.28.58 0:0:0:0:0:ffff:9015:1c3a
144.21.28.59 0:0:0:0:0:ffff:9015:1c3b
144.21.28.60 0:0:0:0:0:ffff:9015:1c3c


144.21.28.61 0:0:0:0:0:ffff:9015:1c3d
144.21.28.62 0:0:0:0:0:ffff:9015:1c3e
144.21.28.63 0:0:0:0:0:ffff:9015:1c3f
144.21.28.64 0:0:0:0:0:ffff:9015:1c40
144.21.28.65 0:0:0:0:0:ffff:9015:1c41
144.21.28.66 0:0:0:0:0:ffff:9015:1c42
144.21.28.67 0:0:0:0:0:ffff:9015:1c43
144.21.28.68 0:0:0:0:0:ffff:9015:1c44
144.21.28.69 0:0:0:0:0:ffff:9015:1c45
144.21.28.70 0:0:0:0:0:ffff:9015:1c46
144.21.28.71 0:0:0:0:0:ffff:9015:1c47
144.21.28.72 0:0:0:0:0:ffff:9015:1c48
144.21.28.73 0:0:0:0:0:ffff:9015:1c49
144.21.28.74 0:0:0:0:0:ffff:9015:1c4a
144.21.28.75 0:0:0:0:0:ffff:9015:1c4b
144.21.28.76 0:0:0:0:0:ffff:9015:1c4c
144.21.28.77 0:0:0:0:0:ffff:9015:1c4d
144.21.28.78 0:0:0:0:0:ffff:9015:1c4e
144.21.28.79 0:0:0:0:0:ffff:9015:1c4f
144.21.28.80 0:0:0:0:0:ffff:9015:1c50
144.21.28.81 0:0:0:0:0:ffff:9015:1c51
144.21.28.82 0:0:0:0:0:ffff:9015:1c52
144.21.28.83 0:0:0:0:0:ffff:9015:1c53
144.21.28.84 0:0:0:0:0:ffff:9015:1c54
144.21.28.85 0:0:0:0:0:ffff:9015:1c55
144.21.28.86 0:0:0:0:0:ffff:9015:1c56
144.21.28.87 0:0:0:0:0:ffff:9015:1c57
144.21.28.88 0:0:0:0:0:ffff:9015:1c58
144.21.28.89 0:0:0:0:0:ffff:9015:1c59
144.21.28.90 0:0:0:0:0:ffff:9015:1c5a
144.21.28.91 0:0:0:0:0:ffff:9015:1c5b
144.21.28.92 0:0:0:0:0:ffff:9015:1c5c
144.21.28.93 0:0:0:0:0:ffff:9015:1c5d
144.21.28.94 0:0:0:0:0:ffff:9015:1c5e
144.21.28.95 0:0:0:0:0:ffff:9015:1c5f
144.21.28.96 0:0:0:0:0:ffff:9015:1c60
144.21.28.97 0:0:0:0:0:ffff:9015:1c61
144.21.28.98 0:0:0:0:0:ffff:9015:1c62
144.21.28.99 0:0:0:0:0:ffff:9015:1c63
144.21.28.100 0:0:0:0:0:ffff:9015:1c64
144.21.28.101 0:0:0:0:0:ffff:9015:1c65
144.21.28.102 0:0:0:0:0:ffff:9015:1c66
144.21.28.103 0:0:0:0:0:ffff:9015:1c67
144.21.28.104 0:0:0:0:0:ffff:9015:1c68
144.21.28.105 0:0:0:0:0:ffff:9015:1c69
144.21.28.106 0:0:0:0:0:ffff:9015:1c6a
144.21.28.107 0:0:0:0:0:ffff:9015:1c6b
144.21.28.108 0:0:0:0:0:ffff:9015:1c6c
144.21.28.109 0:0:0:0:0:ffff:9015:1c6d
144.21.28.110 0:0:0:0:0:ffff:9015:1c6e
144.21.28.111 0:0:0:0:0:ffff:9015:1c6f
144.21.28.112 0:0:0:0:0:ffff:9015:1c70
144.21.28.113 0:0:0:0:0:ffff:9015:1c71
144.21.28.114 0:0:0:0:0:ffff:9015:1c72
144.21.28.115 0:0:0:0:0:ffff:9015:1c73
144.21.28.116 0:0:0:0:0:ffff:9015:1c74
144.21.28.117 0:0:0:0:0:ffff:9015:1c75
144.21.28.118 0:0:0:0:0:ffff:9015:1c76
144.21.28.119 0:0:0:0:0:ffff:9015:1c77
144.21.28.120 0:0:0:0:0:ffff:9015:1c78


144.21.28.121 0:0:0:0:0:ffff:9015:1c79
144.21.28.122 0:0:0:0:0:ffff:9015:1c7a
144.21.28.123 0:0:0:0:0:ffff:9015:1c7b
144.21.28.124 0:0:0:0:0:ffff:9015:1c7c
144.21.28.125 0:0:0:0:0:ffff:9015:1c7d
144.21.28.126 0:0:0:0:0:ffff:9015:1c7e
144.21.28.127 0:0:0:0:0:ffff:9015:1c7f
144.21.28.128 0:0:0:0:0:ffff:9015:1c80
144.21.28.129 0:0:0:0:0:ffff:9015:1c81
144.21.28.130 0:0:0:0:0:ffff:9015:1c82
144.21.28.131 0:0:0:0:0:ffff:9015:1c83
144.21.28.132 0:0:0:0:0:ffff:9015:1c84
144.21.28.133 0:0:0:0:0:ffff:9015:1c85
144.21.28.134 0:0:0:0:0:ffff:9015:1c86
144.21.28.135 0:0:0:0:0:ffff:9015:1c87
144.21.28.136 0:0:0:0:0:ffff:9015:1c88
144.21.28.137 0:0:0:0:0:ffff:9015:1c89
144.21.28.138 0:0:0:0:0:ffff:9015:1c8a
144.21.28.139 0:0:0:0:0:ffff:9015:1c8b
144.21.28.140 0:0:0:0:0:ffff:9015:1c8c
144.21.28.141 0:0:0:0:0:ffff:9015:1c8d
144.21.28.142 0:0:0:0:0:ffff:9015:1c8e
144.21.28.143 0:0:0:0:0:ffff:9015:1c8f
144.21.28.144 0:0:0:0:0:ffff:9015:1c90
144.21.28.145 0:0:0:0:0:ffff:9015:1c91
144.21.28.146 0:0:0:0:0:ffff:9015:1c92
144.21.28.147 0:0:0:0:0:ffff:9015:1c93
144.21.28.148 0:0:0:0:0:ffff:9015:1c94
144.21.28.149 0:0:0:0:0:ffff:9015:1c95
144.21.28.150 0:0:0:0:0:ffff:9015:1c96
144.21.28.151 0:0:0:0:0:ffff:9015:1c97
144.21.28.152 0:0:0:0:0:ffff:9015:1c98
144.21.28.153 0:0:0:0:0:ffff:9015:1c99
144.21.28.154 0:0:0:0:0:ffff:9015:1c9a
144.21.28.155 0:0:0:0:0:ffff:9015:1c9b
144.21.28.156 0:0:0:0:0:ffff:9015:1c9c
144.21.28.157 0:0:0:0:0:ffff:9015:1c9d
144.21.28.158 0:0:0:0:0:ffff:9015:1c9e
144.21.28.159 0:0:0:0:0:ffff:9015:1c9f
144.21.28.160 0:0:0:0:0:ffff:9015:1ca0
144.21.28.161 0:0:0:0:0:ffff:9015:1ca1
144.21.28.162 0:0:0:0:0:ffff:9015:1ca2
144.21.28.163 0:0:0:0:0:ffff:9015:1ca3
144.21.28.164 0:0:0:0:0:ffff:9015:1ca4
144.21.28.165 0:0:0:0:0:ffff:9015:1ca5
144.21.28.166 0:0:0:0:0:ffff:9015:1ca6
144.21.28.167 0:0:0:0:0:ffff:9015:1ca7
144.21.28.168 0:0:0:0:0:ffff:9015:1ca8
144.21.28.169 0:0:0:0:0:ffff:9015:1ca9
144.21.28.170 0:0:0:0:0:ffff:9015:1caa
144.21.28.171 0:0:0:0:0:ffff:9015:1cab
144.21.28.172 0:0:0:0:0:ffff:9015:1cac
144.21.28.173 0:0:0:0:0:ffff:9015:1cad
144.21.28.174 0:0:0:0:0:ffff:9015:1cae
144.21.28.175 0:0:0:0:0:ffff:9015:1caf
144.21.28.176 0:0:0:0:0:ffff:9015:1cb0
144.21.28.177 0:0:0:0:0:ffff:9015:1cb1
144.21.28.178 0:0:0:0:0:ffff:9015:1cb2
144.21.28.179 0:0:0:0:0:ffff:9015:1cb3
144.21.28.180 0:0:0:0:0:ffff:9015:1cb4


144.21.28.181 0:0:0:0:0:ffff:9015:1cb5
144.21.28.182 0:0:0:0:0:ffff:9015:1cb6
144.21.28.183 0:0:0:0:0:ffff:9015:1cb7
144.21.28.184 0:0:0:0:0:ffff:9015:1cb8
144.21.28.185 0:0:0:0:0:ffff:9015:1cb9
144.21.28.186 0:0:0:0:0:ffff:9015:1cba
144.21.28.187 0:0:0:0:0:ffff:9015:1cbb
144.21.28.188 0:0:0:0:0:ffff:9015:1cbc
144.21.28.189 0:0:0:0:0:ffff:9015:1cbd
144.21.28.190 0:0:0:0:0:ffff:9015:1cbe
144.21.28.191 0:0:0:0:0:ffff:9015:1cbf
144.21.28.192 0:0:0:0:0:ffff:9015:1cc0
144.21.28.193 0:0:0:0:0:ffff:9015:1cc1
144.21.28.194 0:0:0:0:0:ffff:9015:1cc2
144.21.28.195 0:0:0:0:0:ffff:9015:1cc3
144.21.28.196 0:0:0:0:0:ffff:9015:1cc4
144.21.28.197 0:0:0:0:0:ffff:9015:1cc5
144.21.28.198 0:0:0:0:0:ffff:9015:1cc6
144.21.28.199 0:0:0:0:0:ffff:9015:1cc7
144.21.28.200 0:0:0:0:0:ffff:9015:1cc8
144.21.28.201 0:0:0:0:0:ffff:9015:1cc9
144.21.28.202 0:0:0:0:0:ffff:9015:1cca
144.21.28.203 0:0:0:0:0:ffff:9015:1ccb
144.21.28.204 0:0:0:0:0:ffff:9015:1ccc
144.21.28.205 0:0:0:0:0:ffff:9015:1ccd
144.21.28.206 0:0:0:0:0:ffff:9015:1cce
144.21.28.207 0:0:0:0:0:ffff:9015:1ccf
144.21.28.208 0:0:0:0:0:ffff:9015:1cd0
144.21.28.209 0:0:0:0:0:ffff:9015:1cd1
144.21.28.210 0:0:0:0:0:ffff:9015:1cd2
144.21.28.211 0:0:0:0:0:ffff:9015:1cd3
144.21.28.212 0:0:0:0:0:ffff:9015:1cd4
144.21.28.213 0:0:0:0:0:ffff:9015:1cd5
144.21.28.214 0:0:0:0:0:ffff:9015:1cd6
144.21.28.215 0:0:0:0:0:ffff:9015:1cd7
144.21.28.216 0:0:0:0:0:ffff:9015:1cd8
144.21.28.217 0:0:0:0:0:ffff:9015:1cd9
144.21.28.218 0:0:0:0:0:ffff:9015:1cda
144.21.28.219 0:0:0:0:0:ffff:9015:1cdb
144.21.28.220 0:0:0:0:0:ffff:9015:1cdc
144.21.28.221 0:0:0:0:0:ffff:9015:1cdd
144.21.28.222 0:0:0:0:0:ffff:9015:1cde
144.21.28.223 0:0:0:0:0:ffff:9015:1cdf
144.21.28.224 0:0:0:0:0:ffff:9015:1ce0
144.21.28.225 0:0:0:0:0:ffff:9015:1ce1
144.21.28.226 0:0:0:0:0:ffff:9015:1ce2
144.21.28.227 0:0:0:0:0:ffff:9015:1ce3
144.21.28.228 0:0:0:0:0:ffff:9015:1ce4
144.21.28.229 0:0:0:0:0:ffff:9015:1ce5
144.21.28.230 0:0:0:0:0:ffff:9015:1ce6
144.21.28.231 0:0:0:0:0:ffff:9015:1ce7
144.21.28.232 0:0:0:0:0:ffff:9015:1ce8
144.21.28.233 0:0:0:0:0:ffff:9015:1ce9
144.21.28.234 0:0:0:0:0:ffff:9015:1cea
144.21.28.235 0:0:0:0:0:ffff:9015:1ceb
144.21.28.236 0:0:0:0:0:ffff:9015:1cec
144.21.28.237 0:0:0:0:0:ffff:9015:1ced
144.21.28.238 0:0:0:0:0:ffff:9015:1cee
144.21.28.239 0:0:0:0:0:ffff:9015:1cef
144.21.28.240 0:0:0:0:0:ffff:9015:1cf0
144.21.28.241 0:0:0:0:0:ffff:9015:1cf1
144.21.28.242 0:0:0:0:0:ffff:9015:1cf2
144.21.28.243 0:0:0:0:0:ffff:9015:1cf3
144.21.28.244 0:0:0:0:0:ffff:9015:1cf4
144.21.28.245 0:0:0:0:0:ffff:9015:1cf5
144.21.28.246 0:0:0:0:0:ffff:9015:1cf6
144.21.28.247 0:0:0:0:0:ffff:9015:1cf7
144.21.28.248 0:0:0:0:0:ffff:9015:1cf8
144.21.28.249 0:0:0:0:0:ffff:9015:1cf9
144.21.28.250 0:0:0:0:0:ffff:9015:1cfa
144.21.28.251 0:0:0:0:0:ffff:9015:1cfb
144.21.28.252 0:0:0:0:0:ffff:9015:1cfc
144.21.28.253 0:0:0:0:0:ffff:9015:1cfd
144.21.28.254 0:0:0:0:0:ffff:9015:1cfe
144.21.28.255 0:0:0:0:0:ffff:9015:1cff


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.