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
144.21.251.1 0:0:0:0:0:ffff:9015:fb01
144.21.251.2 0:0:0:0:0:ffff:9015:fb02
144.21.251.3 0:0:0:0:0:ffff:9015:fb03
144.21.251.4 0:0:0:0:0:ffff:9015:fb04
144.21.251.5 0:0:0:0:0:ffff:9015:fb05
144.21.251.6 0:0:0:0:0:ffff:9015:fb06
144.21.251.7 0:0:0:0:0:ffff:9015:fb07
144.21.251.8 0:0:0:0:0:ffff:9015:fb08
144.21.251.9 0:0:0:0:0:ffff:9015:fb09
144.21.251.10 0:0:0:0:0:ffff:9015:fb0a
144.21.251.11 0:0:0:0:0:ffff:9015:fb0b
144.21.251.12 0:0:0:0:0:ffff:9015:fb0c
144.21.251.13 0:0:0:0:0:ffff:9015:fb0d
144.21.251.14 0:0:0:0:0:ffff:9015:fb0e
144.21.251.15 0:0:0:0:0:ffff:9015:fb0f
144.21.251.16 0:0:0:0:0:ffff:9015:fb10
144.21.251.17 0:0:0:0:0:ffff:9015:fb11
144.21.251.18 0:0:0:0:0:ffff:9015:fb12
144.21.251.19 0:0:0:0:0:ffff:9015:fb13
144.21.251.20 0:0:0:0:0:ffff:9015:fb14
144.21.251.21 0:0:0:0:0:ffff:9015:fb15
144.21.251.22 0:0:0:0:0:ffff:9015:fb16
144.21.251.23 0:0:0:0:0:ffff:9015:fb17
144.21.251.24 0:0:0:0:0:ffff:9015:fb18
144.21.251.25 0:0:0:0:0:ffff:9015:fb19
144.21.251.26 0:0:0:0:0:ffff:9015:fb1a
144.21.251.27 0:0:0:0:0:ffff:9015:fb1b
144.21.251.28 0:0:0:0:0:ffff:9015:fb1c
144.21.251.29 0:0:0:0:0:ffff:9015:fb1d
144.21.251.30 0:0:0:0:0:ffff:9015:fb1e
144.21.251.31 0:0:0:0:0:ffff:9015:fb1f
144.21.251.32 0:0:0:0:0:ffff:9015:fb20
144.21.251.33 0:0:0:0:0:ffff:9015:fb21
144.21.251.34 0:0:0:0:0:ffff:9015:fb22
144.21.251.35 0:0:0:0:0:ffff:9015:fb23
144.21.251.36 0:0:0:0:0:ffff:9015:fb24
144.21.251.37 0:0:0:0:0:ffff:9015:fb25
144.21.251.38 0:0:0:0:0:ffff:9015:fb26
144.21.251.39 0:0:0:0:0:ffff:9015:fb27
144.21.251.40 0:0:0:0:0:ffff:9015:fb28
144.21.251.41 0:0:0:0:0:ffff:9015:fb29
144.21.251.42 0:0:0:0:0:ffff:9015:fb2a
144.21.251.43 0:0:0:0:0:ffff:9015:fb2b
144.21.251.44 0:0:0:0:0:ffff:9015:fb2c
144.21.251.45 0:0:0:0:0:ffff:9015:fb2d
144.21.251.46 0:0:0:0:0:ffff:9015:fb2e
144.21.251.47 0:0:0:0:0:ffff:9015:fb2f
144.21.251.48 0:0:0:0:0:ffff:9015:fb30
144.21.251.49 0:0:0:0:0:ffff:9015:fb31
144.21.251.50 0:0:0:0:0:ffff:9015:fb32
144.21.251.51 0:0:0:0:0:ffff:9015:fb33
144.21.251.52 0:0:0:0:0:ffff:9015:fb34
144.21.251.53 0:0:0:0:0:ffff:9015:fb35
144.21.251.54 0:0:0:0:0:ffff:9015:fb36
144.21.251.55 0:0:0:0:0:ffff:9015:fb37
144.21.251.56 0:0:0:0:0:ffff:9015:fb38
144.21.251.57 0:0:0:0:0:ffff:9015:fb39
144.21.251.58 0:0:0:0:0:ffff:9015:fb3a
144.21.251.59 0:0:0:0:0:ffff:9015:fb3b
144.21.251.60 0:0:0:0:0:ffff:9015:fb3c


144.21.251.61 0:0:0:0:0:ffff:9015:fb3d
144.21.251.62 0:0:0:0:0:ffff:9015:fb3e
144.21.251.63 0:0:0:0:0:ffff:9015:fb3f
144.21.251.64 0:0:0:0:0:ffff:9015:fb40
144.21.251.65 0:0:0:0:0:ffff:9015:fb41
144.21.251.66 0:0:0:0:0:ffff:9015:fb42
144.21.251.67 0:0:0:0:0:ffff:9015:fb43
144.21.251.68 0:0:0:0:0:ffff:9015:fb44
144.21.251.69 0:0:0:0:0:ffff:9015:fb45
144.21.251.70 0:0:0:0:0:ffff:9015:fb46
144.21.251.71 0:0:0:0:0:ffff:9015:fb47
144.21.251.72 0:0:0:0:0:ffff:9015:fb48
144.21.251.73 0:0:0:0:0:ffff:9015:fb49
144.21.251.74 0:0:0:0:0:ffff:9015:fb4a
144.21.251.75 0:0:0:0:0:ffff:9015:fb4b
144.21.251.76 0:0:0:0:0:ffff:9015:fb4c
144.21.251.77 0:0:0:0:0:ffff:9015:fb4d
144.21.251.78 0:0:0:0:0:ffff:9015:fb4e
144.21.251.79 0:0:0:0:0:ffff:9015:fb4f
144.21.251.80 0:0:0:0:0:ffff:9015:fb50
144.21.251.81 0:0:0:0:0:ffff:9015:fb51
144.21.251.82 0:0:0:0:0:ffff:9015:fb52
144.21.251.83 0:0:0:0:0:ffff:9015:fb53
144.21.251.84 0:0:0:0:0:ffff:9015:fb54
144.21.251.85 0:0:0:0:0:ffff:9015:fb55
144.21.251.86 0:0:0:0:0:ffff:9015:fb56
144.21.251.87 0:0:0:0:0:ffff:9015:fb57
144.21.251.88 0:0:0:0:0:ffff:9015:fb58
144.21.251.89 0:0:0:0:0:ffff:9015:fb59
144.21.251.90 0:0:0:0:0:ffff:9015:fb5a
144.21.251.91 0:0:0:0:0:ffff:9015:fb5b
144.21.251.92 0:0:0:0:0:ffff:9015:fb5c
144.21.251.93 0:0:0:0:0:ffff:9015:fb5d
144.21.251.94 0:0:0:0:0:ffff:9015:fb5e
144.21.251.95 0:0:0:0:0:ffff:9015:fb5f
144.21.251.96 0:0:0:0:0:ffff:9015:fb60
144.21.251.97 0:0:0:0:0:ffff:9015:fb61
144.21.251.98 0:0:0:0:0:ffff:9015:fb62
144.21.251.99 0:0:0:0:0:ffff:9015:fb63
144.21.251.100 0:0:0:0:0:ffff:9015:fb64
144.21.251.101 0:0:0:0:0:ffff:9015:fb65
144.21.251.102 0:0:0:0:0:ffff:9015:fb66
144.21.251.103 0:0:0:0:0:ffff:9015:fb67
144.21.251.104 0:0:0:0:0:ffff:9015:fb68
144.21.251.105 0:0:0:0:0:ffff:9015:fb69
144.21.251.106 0:0:0:0:0:ffff:9015:fb6a
144.21.251.107 0:0:0:0:0:ffff:9015:fb6b
144.21.251.108 0:0:0:0:0:ffff:9015:fb6c
144.21.251.109 0:0:0:0:0:ffff:9015:fb6d
144.21.251.110 0:0:0:0:0:ffff:9015:fb6e
144.21.251.111 0:0:0:0:0:ffff:9015:fb6f
144.21.251.112 0:0:0:0:0:ffff:9015:fb70
144.21.251.113 0:0:0:0:0:ffff:9015:fb71
144.21.251.114 0:0:0:0:0:ffff:9015:fb72
144.21.251.115 0:0:0:0:0:ffff:9015:fb73
144.21.251.116 0:0:0:0:0:ffff:9015:fb74
144.21.251.117 0:0:0:0:0:ffff:9015:fb75
144.21.251.118 0:0:0:0:0:ffff:9015:fb76
144.21.251.119 0:0:0:0:0:ffff:9015:fb77
144.21.251.120 0:0:0:0:0:ffff:9015:fb78


144.21.251.121 0:0:0:0:0:ffff:9015:fb79
144.21.251.122 0:0:0:0:0:ffff:9015:fb7a
144.21.251.123 0:0:0:0:0:ffff:9015:fb7b
144.21.251.124 0:0:0:0:0:ffff:9015:fb7c
144.21.251.125 0:0:0:0:0:ffff:9015:fb7d
144.21.251.126 0:0:0:0:0:ffff:9015:fb7e
144.21.251.127 0:0:0:0:0:ffff:9015:fb7f
144.21.251.128 0:0:0:0:0:ffff:9015:fb80
144.21.251.129 0:0:0:0:0:ffff:9015:fb81
144.21.251.130 0:0:0:0:0:ffff:9015:fb82
144.21.251.131 0:0:0:0:0:ffff:9015:fb83
144.21.251.132 0:0:0:0:0:ffff:9015:fb84
144.21.251.133 0:0:0:0:0:ffff:9015:fb85
144.21.251.134 0:0:0:0:0:ffff:9015:fb86
144.21.251.135 0:0:0:0:0:ffff:9015:fb87
144.21.251.136 0:0:0:0:0:ffff:9015:fb88
144.21.251.137 0:0:0:0:0:ffff:9015:fb89
144.21.251.138 0:0:0:0:0:ffff:9015:fb8a
144.21.251.139 0:0:0:0:0:ffff:9015:fb8b
144.21.251.140 0:0:0:0:0:ffff:9015:fb8c
144.21.251.141 0:0:0:0:0:ffff:9015:fb8d
144.21.251.142 0:0:0:0:0:ffff:9015:fb8e
144.21.251.143 0:0:0:0:0:ffff:9015:fb8f
144.21.251.144 0:0:0:0:0:ffff:9015:fb90
144.21.251.145 0:0:0:0:0:ffff:9015:fb91
144.21.251.146 0:0:0:0:0:ffff:9015:fb92
144.21.251.147 0:0:0:0:0:ffff:9015:fb93
144.21.251.148 0:0:0:0:0:ffff:9015:fb94
144.21.251.149 0:0:0:0:0:ffff:9015:fb95
144.21.251.150 0:0:0:0:0:ffff:9015:fb96
144.21.251.151 0:0:0:0:0:ffff:9015:fb97
144.21.251.152 0:0:0:0:0:ffff:9015:fb98
144.21.251.153 0:0:0:0:0:ffff:9015:fb99
144.21.251.154 0:0:0:0:0:ffff:9015:fb9a
144.21.251.155 0:0:0:0:0:ffff:9015:fb9b
144.21.251.156 0:0:0:0:0:ffff:9015:fb9c
144.21.251.157 0:0:0:0:0:ffff:9015:fb9d
144.21.251.158 0:0:0:0:0:ffff:9015:fb9e
144.21.251.159 0:0:0:0:0:ffff:9015:fb9f
144.21.251.160 0:0:0:0:0:ffff:9015:fba0
144.21.251.161 0:0:0:0:0:ffff:9015:fba1
144.21.251.162 0:0:0:0:0:ffff:9015:fba2
144.21.251.163 0:0:0:0:0:ffff:9015:fba3
144.21.251.164 0:0:0:0:0:ffff:9015:fba4
144.21.251.165 0:0:0:0:0:ffff:9015:fba5
144.21.251.166 0:0:0:0:0:ffff:9015:fba6
144.21.251.167 0:0:0:0:0:ffff:9015:fba7
144.21.251.168 0:0:0:0:0:ffff:9015:fba8
144.21.251.169 0:0:0:0:0:ffff:9015:fba9
144.21.251.170 0:0:0:0:0:ffff:9015:fbaa
144.21.251.171 0:0:0:0:0:ffff:9015:fbab
144.21.251.172 0:0:0:0:0:ffff:9015:fbac
144.21.251.173 0:0:0:0:0:ffff:9015:fbad
144.21.251.174 0:0:0:0:0:ffff:9015:fbae
144.21.251.175 0:0:0:0:0:ffff:9015:fbaf
144.21.251.176 0:0:0:0:0:ffff:9015:fbb0
144.21.251.177 0:0:0:0:0:ffff:9015:fbb1
144.21.251.178 0:0:0:0:0:ffff:9015:fbb2
144.21.251.179 0:0:0:0:0:ffff:9015:fbb3
144.21.251.180 0:0:0:0:0:ffff:9015:fbb4


144.21.251.181 0:0:0:0:0:ffff:9015:fbb5
144.21.251.182 0:0:0:0:0:ffff:9015:fbb6
144.21.251.183 0:0:0:0:0:ffff:9015:fbb7
144.21.251.184 0:0:0:0:0:ffff:9015:fbb8
144.21.251.185 0:0:0:0:0:ffff:9015:fbb9
144.21.251.186 0:0:0:0:0:ffff:9015:fbba
144.21.251.187 0:0:0:0:0:ffff:9015:fbbb
144.21.251.188 0:0:0:0:0:ffff:9015:fbbc
144.21.251.189 0:0:0:0:0:ffff:9015:fbbd
144.21.251.190 0:0:0:0:0:ffff:9015:fbbe
144.21.251.191 0:0:0:0:0:ffff:9015:fbbf
144.21.251.192 0:0:0:0:0:ffff:9015:fbc0
144.21.251.193 0:0:0:0:0:ffff:9015:fbc1
144.21.251.194 0:0:0:0:0:ffff:9015:fbc2
144.21.251.195 0:0:0:0:0:ffff:9015:fbc3
144.21.251.196 0:0:0:0:0:ffff:9015:fbc4
144.21.251.197 0:0:0:0:0:ffff:9015:fbc5
144.21.251.198 0:0:0:0:0:ffff:9015:fbc6
144.21.251.199 0:0:0:0:0:ffff:9015:fbc7
144.21.251.200 0:0:0:0:0:ffff:9015:fbc8
144.21.251.201 0:0:0:0:0:ffff:9015:fbc9
144.21.251.202 0:0:0:0:0:ffff:9015:fbca
144.21.251.203 0:0:0:0:0:ffff:9015:fbcb
144.21.251.204 0:0:0:0:0:ffff:9015:fbcc
144.21.251.205 0:0:0:0:0:ffff:9015:fbcd
144.21.251.206 0:0:0:0:0:ffff:9015:fbce
144.21.251.207 0:0:0:0:0:ffff:9015:fbcf
144.21.251.208 0:0:0:0:0:ffff:9015:fbd0
144.21.251.209 0:0:0:0:0:ffff:9015:fbd1
144.21.251.210 0:0:0:0:0:ffff:9015:fbd2
144.21.251.211 0:0:0:0:0:ffff:9015:fbd3
144.21.251.212 0:0:0:0:0:ffff:9015:fbd4
144.21.251.213 0:0:0:0:0:ffff:9015:fbd5
144.21.251.214 0:0:0:0:0:ffff:9015:fbd6
144.21.251.215 0:0:0:0:0:ffff:9015:fbd7
144.21.251.216 0:0:0:0:0:ffff:9015:fbd8
144.21.251.217 0:0:0:0:0:ffff:9015:fbd9
144.21.251.218 0:0:0:0:0:ffff:9015:fbda
144.21.251.219 0:0:0:0:0:ffff:9015:fbdb
144.21.251.220 0:0:0:0:0:ffff:9015:fbdc
144.21.251.221 0:0:0:0:0:ffff:9015:fbdd
144.21.251.222 0:0:0:0:0:ffff:9015:fbde
144.21.251.223 0:0:0:0:0:ffff:9015:fbdf
144.21.251.224 0:0:0:0:0:ffff:9015:fbe0
144.21.251.225 0:0:0:0:0:ffff:9015:fbe1
144.21.251.226 0:0:0:0:0:ffff:9015:fbe2
144.21.251.227 0:0:0:0:0:ffff:9015:fbe3
144.21.251.228 0:0:0:0:0:ffff:9015:fbe4
144.21.251.229 0:0:0:0:0:ffff:9015:fbe5
144.21.251.230 0:0:0:0:0:ffff:9015:fbe6
144.21.251.231 0:0:0:0:0:ffff:9015:fbe7
144.21.251.232 0:0:0:0:0:ffff:9015:fbe8
144.21.251.233 0:0:0:0:0:ffff:9015:fbe9
144.21.251.234 0:0:0:0:0:ffff:9015:fbea
144.21.251.235 0:0:0:0:0:ffff:9015:fbeb
144.21.251.236 0:0:0:0:0:ffff:9015:fbec
144.21.251.237 0:0:0:0:0:ffff:9015:fbed
144.21.251.238 0:0:0:0:0:ffff:9015:fbee
144.21.251.239 0:0:0:0:0:ffff:9015:fbef
144.21.251.240 0:0:0:0:0:ffff:9015:fbf0
144.21.251.241 0:0:0:0:0:ffff:9015:fbf1
144.21.251.242 0:0:0:0:0:ffff:9015:fbf2
144.21.251.243 0:0:0:0:0:ffff:9015:fbf3
144.21.251.244 0:0:0:0:0:ffff:9015:fbf4
144.21.251.245 0:0:0:0:0:ffff:9015:fbf5
144.21.251.246 0:0:0:0:0:ffff:9015:fbf6
144.21.251.247 0:0:0:0:0:ffff:9015:fbf7
144.21.251.248 0:0:0:0:0:ffff:9015:fbf8
144.21.251.249 0:0:0:0:0:ffff:9015:fbf9
144.21.251.250 0:0:0:0:0:ffff:9015:fbfa
144.21.251.251 0:0:0:0:0:ffff:9015:fbfb
144.21.251.252 0:0:0:0:0:ffff:9015:fbfc
144.21.251.253 0:0:0:0:0:ffff:9015:fbfd
144.21.251.254 0:0:0:0:0:ffff:9015:fbfe
144.21.251.255 0:0:0:0:0:ffff:9015:fbff


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.