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
143.243.251.1 0:0:0:0:0:ffff:8ff3:fb01
143.243.251.2 0:0:0:0:0:ffff:8ff3:fb02
143.243.251.3 0:0:0:0:0:ffff:8ff3:fb03
143.243.251.4 0:0:0:0:0:ffff:8ff3:fb04
143.243.251.5 0:0:0:0:0:ffff:8ff3:fb05
143.243.251.6 0:0:0:0:0:ffff:8ff3:fb06
143.243.251.7 0:0:0:0:0:ffff:8ff3:fb07
143.243.251.8 0:0:0:0:0:ffff:8ff3:fb08
143.243.251.9 0:0:0:0:0:ffff:8ff3:fb09
143.243.251.10 0:0:0:0:0:ffff:8ff3:fb0a
143.243.251.11 0:0:0:0:0:ffff:8ff3:fb0b
143.243.251.12 0:0:0:0:0:ffff:8ff3:fb0c
143.243.251.13 0:0:0:0:0:ffff:8ff3:fb0d
143.243.251.14 0:0:0:0:0:ffff:8ff3:fb0e
143.243.251.15 0:0:0:0:0:ffff:8ff3:fb0f
143.243.251.16 0:0:0:0:0:ffff:8ff3:fb10
143.243.251.17 0:0:0:0:0:ffff:8ff3:fb11
143.243.251.18 0:0:0:0:0:ffff:8ff3:fb12
143.243.251.19 0:0:0:0:0:ffff:8ff3:fb13
143.243.251.20 0:0:0:0:0:ffff:8ff3:fb14
143.243.251.21 0:0:0:0:0:ffff:8ff3:fb15
143.243.251.22 0:0:0:0:0:ffff:8ff3:fb16
143.243.251.23 0:0:0:0:0:ffff:8ff3:fb17
143.243.251.24 0:0:0:0:0:ffff:8ff3:fb18
143.243.251.25 0:0:0:0:0:ffff:8ff3:fb19
143.243.251.26 0:0:0:0:0:ffff:8ff3:fb1a
143.243.251.27 0:0:0:0:0:ffff:8ff3:fb1b
143.243.251.28 0:0:0:0:0:ffff:8ff3:fb1c
143.243.251.29 0:0:0:0:0:ffff:8ff3:fb1d
143.243.251.30 0:0:0:0:0:ffff:8ff3:fb1e
143.243.251.31 0:0:0:0:0:ffff:8ff3:fb1f
143.243.251.32 0:0:0:0:0:ffff:8ff3:fb20
143.243.251.33 0:0:0:0:0:ffff:8ff3:fb21
143.243.251.34 0:0:0:0:0:ffff:8ff3:fb22
143.243.251.35 0:0:0:0:0:ffff:8ff3:fb23
143.243.251.36 0:0:0:0:0:ffff:8ff3:fb24
143.243.251.37 0:0:0:0:0:ffff:8ff3:fb25
143.243.251.38 0:0:0:0:0:ffff:8ff3:fb26
143.243.251.39 0:0:0:0:0:ffff:8ff3:fb27
143.243.251.40 0:0:0:0:0:ffff:8ff3:fb28
143.243.251.41 0:0:0:0:0:ffff:8ff3:fb29
143.243.251.42 0:0:0:0:0:ffff:8ff3:fb2a
143.243.251.43 0:0:0:0:0:ffff:8ff3:fb2b
143.243.251.44 0:0:0:0:0:ffff:8ff3:fb2c
143.243.251.45 0:0:0:0:0:ffff:8ff3:fb2d
143.243.251.46 0:0:0:0:0:ffff:8ff3:fb2e
143.243.251.47 0:0:0:0:0:ffff:8ff3:fb2f
143.243.251.48 0:0:0:0:0:ffff:8ff3:fb30
143.243.251.49 0:0:0:0:0:ffff:8ff3:fb31
143.243.251.50 0:0:0:0:0:ffff:8ff3:fb32
143.243.251.51 0:0:0:0:0:ffff:8ff3:fb33
143.243.251.52 0:0:0:0:0:ffff:8ff3:fb34
143.243.251.53 0:0:0:0:0:ffff:8ff3:fb35
143.243.251.54 0:0:0:0:0:ffff:8ff3:fb36
143.243.251.55 0:0:0:0:0:ffff:8ff3:fb37
143.243.251.56 0:0:0:0:0:ffff:8ff3:fb38
143.243.251.57 0:0:0:0:0:ffff:8ff3:fb39
143.243.251.58 0:0:0:0:0:ffff:8ff3:fb3a
143.243.251.59 0:0:0:0:0:ffff:8ff3:fb3b
143.243.251.60 0:0:0:0:0:ffff:8ff3:fb3c


143.243.251.61 0:0:0:0:0:ffff:8ff3:fb3d
143.243.251.62 0:0:0:0:0:ffff:8ff3:fb3e
143.243.251.63 0:0:0:0:0:ffff:8ff3:fb3f
143.243.251.64 0:0:0:0:0:ffff:8ff3:fb40
143.243.251.65 0:0:0:0:0:ffff:8ff3:fb41
143.243.251.66 0:0:0:0:0:ffff:8ff3:fb42
143.243.251.67 0:0:0:0:0:ffff:8ff3:fb43
143.243.251.68 0:0:0:0:0:ffff:8ff3:fb44
143.243.251.69 0:0:0:0:0:ffff:8ff3:fb45
143.243.251.70 0:0:0:0:0:ffff:8ff3:fb46
143.243.251.71 0:0:0:0:0:ffff:8ff3:fb47
143.243.251.72 0:0:0:0:0:ffff:8ff3:fb48
143.243.251.73 0:0:0:0:0:ffff:8ff3:fb49
143.243.251.74 0:0:0:0:0:ffff:8ff3:fb4a
143.243.251.75 0:0:0:0:0:ffff:8ff3:fb4b
143.243.251.76 0:0:0:0:0:ffff:8ff3:fb4c
143.243.251.77 0:0:0:0:0:ffff:8ff3:fb4d
143.243.251.78 0:0:0:0:0:ffff:8ff3:fb4e
143.243.251.79 0:0:0:0:0:ffff:8ff3:fb4f
143.243.251.80 0:0:0:0:0:ffff:8ff3:fb50
143.243.251.81 0:0:0:0:0:ffff:8ff3:fb51
143.243.251.82 0:0:0:0:0:ffff:8ff3:fb52
143.243.251.83 0:0:0:0:0:ffff:8ff3:fb53
143.243.251.84 0:0:0:0:0:ffff:8ff3:fb54
143.243.251.85 0:0:0:0:0:ffff:8ff3:fb55
143.243.251.86 0:0:0:0:0:ffff:8ff3:fb56
143.243.251.87 0:0:0:0:0:ffff:8ff3:fb57
143.243.251.88 0:0:0:0:0:ffff:8ff3:fb58
143.243.251.89 0:0:0:0:0:ffff:8ff3:fb59
143.243.251.90 0:0:0:0:0:ffff:8ff3:fb5a
143.243.251.91 0:0:0:0:0:ffff:8ff3:fb5b
143.243.251.92 0:0:0:0:0:ffff:8ff3:fb5c
143.243.251.93 0:0:0:0:0:ffff:8ff3:fb5d
143.243.251.94 0:0:0:0:0:ffff:8ff3:fb5e
143.243.251.95 0:0:0:0:0:ffff:8ff3:fb5f
143.243.251.96 0:0:0:0:0:ffff:8ff3:fb60
143.243.251.97 0:0:0:0:0:ffff:8ff3:fb61
143.243.251.98 0:0:0:0:0:ffff:8ff3:fb62
143.243.251.99 0:0:0:0:0:ffff:8ff3:fb63
143.243.251.100 0:0:0:0:0:ffff:8ff3:fb64
143.243.251.101 0:0:0:0:0:ffff:8ff3:fb65
143.243.251.102 0:0:0:0:0:ffff:8ff3:fb66
143.243.251.103 0:0:0:0:0:ffff:8ff3:fb67
143.243.251.104 0:0:0:0:0:ffff:8ff3:fb68
143.243.251.105 0:0:0:0:0:ffff:8ff3:fb69
143.243.251.106 0:0:0:0:0:ffff:8ff3:fb6a
143.243.251.107 0:0:0:0:0:ffff:8ff3:fb6b
143.243.251.108 0:0:0:0:0:ffff:8ff3:fb6c
143.243.251.109 0:0:0:0:0:ffff:8ff3:fb6d
143.243.251.110 0:0:0:0:0:ffff:8ff3:fb6e
143.243.251.111 0:0:0:0:0:ffff:8ff3:fb6f
143.243.251.112 0:0:0:0:0:ffff:8ff3:fb70
143.243.251.113 0:0:0:0:0:ffff:8ff3:fb71
143.243.251.114 0:0:0:0:0:ffff:8ff3:fb72
143.243.251.115 0:0:0:0:0:ffff:8ff3:fb73
143.243.251.116 0:0:0:0:0:ffff:8ff3:fb74
143.243.251.117 0:0:0:0:0:ffff:8ff3:fb75
143.243.251.118 0:0:0:0:0:ffff:8ff3:fb76
143.243.251.119 0:0:0:0:0:ffff:8ff3:fb77
143.243.251.120 0:0:0:0:0:ffff:8ff3:fb78


143.243.251.121 0:0:0:0:0:ffff:8ff3:fb79
143.243.251.122 0:0:0:0:0:ffff:8ff3:fb7a
143.243.251.123 0:0:0:0:0:ffff:8ff3:fb7b
143.243.251.124 0:0:0:0:0:ffff:8ff3:fb7c
143.243.251.125 0:0:0:0:0:ffff:8ff3:fb7d
143.243.251.126 0:0:0:0:0:ffff:8ff3:fb7e
143.243.251.127 0:0:0:0:0:ffff:8ff3:fb7f
143.243.251.128 0:0:0:0:0:ffff:8ff3:fb80
143.243.251.129 0:0:0:0:0:ffff:8ff3:fb81
143.243.251.130 0:0:0:0:0:ffff:8ff3:fb82
143.243.251.131 0:0:0:0:0:ffff:8ff3:fb83
143.243.251.132 0:0:0:0:0:ffff:8ff3:fb84
143.243.251.133 0:0:0:0:0:ffff:8ff3:fb85
143.243.251.134 0:0:0:0:0:ffff:8ff3:fb86
143.243.251.135 0:0:0:0:0:ffff:8ff3:fb87
143.243.251.136 0:0:0:0:0:ffff:8ff3:fb88
143.243.251.137 0:0:0:0:0:ffff:8ff3:fb89
143.243.251.138 0:0:0:0:0:ffff:8ff3:fb8a
143.243.251.139 0:0:0:0:0:ffff:8ff3:fb8b
143.243.251.140 0:0:0:0:0:ffff:8ff3:fb8c
143.243.251.141 0:0:0:0:0:ffff:8ff3:fb8d
143.243.251.142 0:0:0:0:0:ffff:8ff3:fb8e
143.243.251.143 0:0:0:0:0:ffff:8ff3:fb8f
143.243.251.144 0:0:0:0:0:ffff:8ff3:fb90
143.243.251.145 0:0:0:0:0:ffff:8ff3:fb91
143.243.251.146 0:0:0:0:0:ffff:8ff3:fb92
143.243.251.147 0:0:0:0:0:ffff:8ff3:fb93
143.243.251.148 0:0:0:0:0:ffff:8ff3:fb94
143.243.251.149 0:0:0:0:0:ffff:8ff3:fb95
143.243.251.150 0:0:0:0:0:ffff:8ff3:fb96
143.243.251.151 0:0:0:0:0:ffff:8ff3:fb97
143.243.251.152 0:0:0:0:0:ffff:8ff3:fb98
143.243.251.153 0:0:0:0:0:ffff:8ff3:fb99
143.243.251.154 0:0:0:0:0:ffff:8ff3:fb9a
143.243.251.155 0:0:0:0:0:ffff:8ff3:fb9b
143.243.251.156 0:0:0:0:0:ffff:8ff3:fb9c
143.243.251.157 0:0:0:0:0:ffff:8ff3:fb9d
143.243.251.158 0:0:0:0:0:ffff:8ff3:fb9e
143.243.251.159 0:0:0:0:0:ffff:8ff3:fb9f
143.243.251.160 0:0:0:0:0:ffff:8ff3:fba0
143.243.251.161 0:0:0:0:0:ffff:8ff3:fba1
143.243.251.162 0:0:0:0:0:ffff:8ff3:fba2
143.243.251.163 0:0:0:0:0:ffff:8ff3:fba3
143.243.251.164 0:0:0:0:0:ffff:8ff3:fba4
143.243.251.165 0:0:0:0:0:ffff:8ff3:fba5
143.243.251.166 0:0:0:0:0:ffff:8ff3:fba6
143.243.251.167 0:0:0:0:0:ffff:8ff3:fba7
143.243.251.168 0:0:0:0:0:ffff:8ff3:fba8
143.243.251.169 0:0:0:0:0:ffff:8ff3:fba9
143.243.251.170 0:0:0:0:0:ffff:8ff3:fbaa
143.243.251.171 0:0:0:0:0:ffff:8ff3:fbab
143.243.251.172 0:0:0:0:0:ffff:8ff3:fbac
143.243.251.173 0:0:0:0:0:ffff:8ff3:fbad
143.243.251.174 0:0:0:0:0:ffff:8ff3:fbae
143.243.251.175 0:0:0:0:0:ffff:8ff3:fbaf
143.243.251.176 0:0:0:0:0:ffff:8ff3:fbb0
143.243.251.177 0:0:0:0:0:ffff:8ff3:fbb1
143.243.251.178 0:0:0:0:0:ffff:8ff3:fbb2
143.243.251.179 0:0:0:0:0:ffff:8ff3:fbb3
143.243.251.180 0:0:0:0:0:ffff:8ff3:fbb4


143.243.251.181 0:0:0:0:0:ffff:8ff3:fbb5
143.243.251.182 0:0:0:0:0:ffff:8ff3:fbb6
143.243.251.183 0:0:0:0:0:ffff:8ff3:fbb7
143.243.251.184 0:0:0:0:0:ffff:8ff3:fbb8
143.243.251.185 0:0:0:0:0:ffff:8ff3:fbb9
143.243.251.186 0:0:0:0:0:ffff:8ff3:fbba
143.243.251.187 0:0:0:0:0:ffff:8ff3:fbbb
143.243.251.188 0:0:0:0:0:ffff:8ff3:fbbc
143.243.251.189 0:0:0:0:0:ffff:8ff3:fbbd
143.243.251.190 0:0:0:0:0:ffff:8ff3:fbbe
143.243.251.191 0:0:0:0:0:ffff:8ff3:fbbf
143.243.251.192 0:0:0:0:0:ffff:8ff3:fbc0
143.243.251.193 0:0:0:0:0:ffff:8ff3:fbc1
143.243.251.194 0:0:0:0:0:ffff:8ff3:fbc2
143.243.251.195 0:0:0:0:0:ffff:8ff3:fbc3
143.243.251.196 0:0:0:0:0:ffff:8ff3:fbc4
143.243.251.197 0:0:0:0:0:ffff:8ff3:fbc5
143.243.251.198 0:0:0:0:0:ffff:8ff3:fbc6
143.243.251.199 0:0:0:0:0:ffff:8ff3:fbc7
143.243.251.200 0:0:0:0:0:ffff:8ff3:fbc8
143.243.251.201 0:0:0:0:0:ffff:8ff3:fbc9
143.243.251.202 0:0:0:0:0:ffff:8ff3:fbca
143.243.251.203 0:0:0:0:0:ffff:8ff3:fbcb
143.243.251.204 0:0:0:0:0:ffff:8ff3:fbcc
143.243.251.205 0:0:0:0:0:ffff:8ff3:fbcd
143.243.251.206 0:0:0:0:0:ffff:8ff3:fbce
143.243.251.207 0:0:0:0:0:ffff:8ff3:fbcf
143.243.251.208 0:0:0:0:0:ffff:8ff3:fbd0
143.243.251.209 0:0:0:0:0:ffff:8ff3:fbd1
143.243.251.210 0:0:0:0:0:ffff:8ff3:fbd2
143.243.251.211 0:0:0:0:0:ffff:8ff3:fbd3
143.243.251.212 0:0:0:0:0:ffff:8ff3:fbd4
143.243.251.213 0:0:0:0:0:ffff:8ff3:fbd5
143.243.251.214 0:0:0:0:0:ffff:8ff3:fbd6
143.243.251.215 0:0:0:0:0:ffff:8ff3:fbd7
143.243.251.216 0:0:0:0:0:ffff:8ff3:fbd8
143.243.251.217 0:0:0:0:0:ffff:8ff3:fbd9
143.243.251.218 0:0:0:0:0:ffff:8ff3:fbda
143.243.251.219 0:0:0:0:0:ffff:8ff3:fbdb
143.243.251.220 0:0:0:0:0:ffff:8ff3:fbdc
143.243.251.221 0:0:0:0:0:ffff:8ff3:fbdd
143.243.251.222 0:0:0:0:0:ffff:8ff3:fbde
143.243.251.223 0:0:0:0:0:ffff:8ff3:fbdf
143.243.251.224 0:0:0:0:0:ffff:8ff3:fbe0
143.243.251.225 0:0:0:0:0:ffff:8ff3:fbe1
143.243.251.226 0:0:0:0:0:ffff:8ff3:fbe2
143.243.251.227 0:0:0:0:0:ffff:8ff3:fbe3
143.243.251.228 0:0:0:0:0:ffff:8ff3:fbe4
143.243.251.229 0:0:0:0:0:ffff:8ff3:fbe5
143.243.251.230 0:0:0:0:0:ffff:8ff3:fbe6
143.243.251.231 0:0:0:0:0:ffff:8ff3:fbe7
143.243.251.232 0:0:0:0:0:ffff:8ff3:fbe8
143.243.251.233 0:0:0:0:0:ffff:8ff3:fbe9
143.243.251.234 0:0:0:0:0:ffff:8ff3:fbea
143.243.251.235 0:0:0:0:0:ffff:8ff3:fbeb
143.243.251.236 0:0:0:0:0:ffff:8ff3:fbec
143.243.251.237 0:0:0:0:0:ffff:8ff3:fbed
143.243.251.238 0:0:0:0:0:ffff:8ff3:fbee
143.243.251.239 0:0:0:0:0:ffff:8ff3:fbef
143.243.251.240 0:0:0:0:0:ffff:8ff3:fbf0
143.243.251.241 0:0:0:0:0:ffff:8ff3:fbf1
143.243.251.242 0:0:0:0:0:ffff:8ff3:fbf2
143.243.251.243 0:0:0:0:0:ffff:8ff3:fbf3
143.243.251.244 0:0:0:0:0:ffff:8ff3:fbf4
143.243.251.245 0:0:0:0:0:ffff:8ff3:fbf5
143.243.251.246 0:0:0:0:0:ffff:8ff3:fbf6
143.243.251.247 0:0:0:0:0:ffff:8ff3:fbf7
143.243.251.248 0:0:0:0:0:ffff:8ff3:fbf8
143.243.251.249 0:0:0:0:0:ffff:8ff3:fbf9
143.243.251.250 0:0:0:0:0:ffff:8ff3:fbfa
143.243.251.251 0:0:0:0:0:ffff:8ff3:fbfb
143.243.251.252 0:0:0:0:0:ffff:8ff3:fbfc
143.243.251.253 0:0:0:0:0:ffff:8ff3:fbfd
143.243.251.254 0:0:0:0:0:ffff:8ff3:fbfe
143.243.251.255 0:0:0:0:0:ffff:8ff3: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.