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
143.243.42.1 0:0:0:0:0:ffff:8ff3:2a01
143.243.42.2 0:0:0:0:0:ffff:8ff3:2a02
143.243.42.3 0:0:0:0:0:ffff:8ff3:2a03
143.243.42.4 0:0:0:0:0:ffff:8ff3:2a04
143.243.42.5 0:0:0:0:0:ffff:8ff3:2a05
143.243.42.6 0:0:0:0:0:ffff:8ff3:2a06
143.243.42.7 0:0:0:0:0:ffff:8ff3:2a07
143.243.42.8 0:0:0:0:0:ffff:8ff3:2a08
143.243.42.9 0:0:0:0:0:ffff:8ff3:2a09
143.243.42.10 0:0:0:0:0:ffff:8ff3:2a0a
143.243.42.11 0:0:0:0:0:ffff:8ff3:2a0b
143.243.42.12 0:0:0:0:0:ffff:8ff3:2a0c
143.243.42.13 0:0:0:0:0:ffff:8ff3:2a0d
143.243.42.14 0:0:0:0:0:ffff:8ff3:2a0e
143.243.42.15 0:0:0:0:0:ffff:8ff3:2a0f
143.243.42.16 0:0:0:0:0:ffff:8ff3:2a10
143.243.42.17 0:0:0:0:0:ffff:8ff3:2a11
143.243.42.18 0:0:0:0:0:ffff:8ff3:2a12
143.243.42.19 0:0:0:0:0:ffff:8ff3:2a13
143.243.42.20 0:0:0:0:0:ffff:8ff3:2a14
143.243.42.21 0:0:0:0:0:ffff:8ff3:2a15
143.243.42.22 0:0:0:0:0:ffff:8ff3:2a16
143.243.42.23 0:0:0:0:0:ffff:8ff3:2a17
143.243.42.24 0:0:0:0:0:ffff:8ff3:2a18
143.243.42.25 0:0:0:0:0:ffff:8ff3:2a19
143.243.42.26 0:0:0:0:0:ffff:8ff3:2a1a
143.243.42.27 0:0:0:0:0:ffff:8ff3:2a1b
143.243.42.28 0:0:0:0:0:ffff:8ff3:2a1c
143.243.42.29 0:0:0:0:0:ffff:8ff3:2a1d
143.243.42.30 0:0:0:0:0:ffff:8ff3:2a1e
143.243.42.31 0:0:0:0:0:ffff:8ff3:2a1f
143.243.42.32 0:0:0:0:0:ffff:8ff3:2a20
143.243.42.33 0:0:0:0:0:ffff:8ff3:2a21
143.243.42.34 0:0:0:0:0:ffff:8ff3:2a22
143.243.42.35 0:0:0:0:0:ffff:8ff3:2a23
143.243.42.36 0:0:0:0:0:ffff:8ff3:2a24
143.243.42.37 0:0:0:0:0:ffff:8ff3:2a25
143.243.42.38 0:0:0:0:0:ffff:8ff3:2a26
143.243.42.39 0:0:0:0:0:ffff:8ff3:2a27
143.243.42.40 0:0:0:0:0:ffff:8ff3:2a28
143.243.42.41 0:0:0:0:0:ffff:8ff3:2a29
143.243.42.42 0:0:0:0:0:ffff:8ff3:2a2a
143.243.42.43 0:0:0:0:0:ffff:8ff3:2a2b
143.243.42.44 0:0:0:0:0:ffff:8ff3:2a2c
143.243.42.45 0:0:0:0:0:ffff:8ff3:2a2d
143.243.42.46 0:0:0:0:0:ffff:8ff3:2a2e
143.243.42.47 0:0:0:0:0:ffff:8ff3:2a2f
143.243.42.48 0:0:0:0:0:ffff:8ff3:2a30
143.243.42.49 0:0:0:0:0:ffff:8ff3:2a31
143.243.42.50 0:0:0:0:0:ffff:8ff3:2a32
143.243.42.51 0:0:0:0:0:ffff:8ff3:2a33
143.243.42.52 0:0:0:0:0:ffff:8ff3:2a34
143.243.42.53 0:0:0:0:0:ffff:8ff3:2a35
143.243.42.54 0:0:0:0:0:ffff:8ff3:2a36
143.243.42.55 0:0:0:0:0:ffff:8ff3:2a37
143.243.42.56 0:0:0:0:0:ffff:8ff3:2a38
143.243.42.57 0:0:0:0:0:ffff:8ff3:2a39
143.243.42.58 0:0:0:0:0:ffff:8ff3:2a3a
143.243.42.59 0:0:0:0:0:ffff:8ff3:2a3b
143.243.42.60 0:0:0:0:0:ffff:8ff3:2a3c


143.243.42.61 0:0:0:0:0:ffff:8ff3:2a3d
143.243.42.62 0:0:0:0:0:ffff:8ff3:2a3e
143.243.42.63 0:0:0:0:0:ffff:8ff3:2a3f
143.243.42.64 0:0:0:0:0:ffff:8ff3:2a40
143.243.42.65 0:0:0:0:0:ffff:8ff3:2a41
143.243.42.66 0:0:0:0:0:ffff:8ff3:2a42
143.243.42.67 0:0:0:0:0:ffff:8ff3:2a43
143.243.42.68 0:0:0:0:0:ffff:8ff3:2a44
143.243.42.69 0:0:0:0:0:ffff:8ff3:2a45
143.243.42.70 0:0:0:0:0:ffff:8ff3:2a46
143.243.42.71 0:0:0:0:0:ffff:8ff3:2a47
143.243.42.72 0:0:0:0:0:ffff:8ff3:2a48
143.243.42.73 0:0:0:0:0:ffff:8ff3:2a49
143.243.42.74 0:0:0:0:0:ffff:8ff3:2a4a
143.243.42.75 0:0:0:0:0:ffff:8ff3:2a4b
143.243.42.76 0:0:0:0:0:ffff:8ff3:2a4c
143.243.42.77 0:0:0:0:0:ffff:8ff3:2a4d
143.243.42.78 0:0:0:0:0:ffff:8ff3:2a4e
143.243.42.79 0:0:0:0:0:ffff:8ff3:2a4f
143.243.42.80 0:0:0:0:0:ffff:8ff3:2a50
143.243.42.81 0:0:0:0:0:ffff:8ff3:2a51
143.243.42.82 0:0:0:0:0:ffff:8ff3:2a52
143.243.42.83 0:0:0:0:0:ffff:8ff3:2a53
143.243.42.84 0:0:0:0:0:ffff:8ff3:2a54
143.243.42.85 0:0:0:0:0:ffff:8ff3:2a55
143.243.42.86 0:0:0:0:0:ffff:8ff3:2a56
143.243.42.87 0:0:0:0:0:ffff:8ff3:2a57
143.243.42.88 0:0:0:0:0:ffff:8ff3:2a58
143.243.42.89 0:0:0:0:0:ffff:8ff3:2a59
143.243.42.90 0:0:0:0:0:ffff:8ff3:2a5a
143.243.42.91 0:0:0:0:0:ffff:8ff3:2a5b
143.243.42.92 0:0:0:0:0:ffff:8ff3:2a5c
143.243.42.93 0:0:0:0:0:ffff:8ff3:2a5d
143.243.42.94 0:0:0:0:0:ffff:8ff3:2a5e
143.243.42.95 0:0:0:0:0:ffff:8ff3:2a5f
143.243.42.96 0:0:0:0:0:ffff:8ff3:2a60
143.243.42.97 0:0:0:0:0:ffff:8ff3:2a61
143.243.42.98 0:0:0:0:0:ffff:8ff3:2a62
143.243.42.99 0:0:0:0:0:ffff:8ff3:2a63
143.243.42.100 0:0:0:0:0:ffff:8ff3:2a64
143.243.42.101 0:0:0:0:0:ffff:8ff3:2a65
143.243.42.102 0:0:0:0:0:ffff:8ff3:2a66
143.243.42.103 0:0:0:0:0:ffff:8ff3:2a67
143.243.42.104 0:0:0:0:0:ffff:8ff3:2a68
143.243.42.105 0:0:0:0:0:ffff:8ff3:2a69
143.243.42.106 0:0:0:0:0:ffff:8ff3:2a6a
143.243.42.107 0:0:0:0:0:ffff:8ff3:2a6b
143.243.42.108 0:0:0:0:0:ffff:8ff3:2a6c
143.243.42.109 0:0:0:0:0:ffff:8ff3:2a6d
143.243.42.110 0:0:0:0:0:ffff:8ff3:2a6e
143.243.42.111 0:0:0:0:0:ffff:8ff3:2a6f
143.243.42.112 0:0:0:0:0:ffff:8ff3:2a70
143.243.42.113 0:0:0:0:0:ffff:8ff3:2a71
143.243.42.114 0:0:0:0:0:ffff:8ff3:2a72
143.243.42.115 0:0:0:0:0:ffff:8ff3:2a73
143.243.42.116 0:0:0:0:0:ffff:8ff3:2a74
143.243.42.117 0:0:0:0:0:ffff:8ff3:2a75
143.243.42.118 0:0:0:0:0:ffff:8ff3:2a76
143.243.42.119 0:0:0:0:0:ffff:8ff3:2a77
143.243.42.120 0:0:0:0:0:ffff:8ff3:2a78


143.243.42.121 0:0:0:0:0:ffff:8ff3:2a79
143.243.42.122 0:0:0:0:0:ffff:8ff3:2a7a
143.243.42.123 0:0:0:0:0:ffff:8ff3:2a7b
143.243.42.124 0:0:0:0:0:ffff:8ff3:2a7c
143.243.42.125 0:0:0:0:0:ffff:8ff3:2a7d
143.243.42.126 0:0:0:0:0:ffff:8ff3:2a7e
143.243.42.127 0:0:0:0:0:ffff:8ff3:2a7f
143.243.42.128 0:0:0:0:0:ffff:8ff3:2a80
143.243.42.129 0:0:0:0:0:ffff:8ff3:2a81
143.243.42.130 0:0:0:0:0:ffff:8ff3:2a82
143.243.42.131 0:0:0:0:0:ffff:8ff3:2a83
143.243.42.132 0:0:0:0:0:ffff:8ff3:2a84
143.243.42.133 0:0:0:0:0:ffff:8ff3:2a85
143.243.42.134 0:0:0:0:0:ffff:8ff3:2a86
143.243.42.135 0:0:0:0:0:ffff:8ff3:2a87
143.243.42.136 0:0:0:0:0:ffff:8ff3:2a88
143.243.42.137 0:0:0:0:0:ffff:8ff3:2a89
143.243.42.138 0:0:0:0:0:ffff:8ff3:2a8a
143.243.42.139 0:0:0:0:0:ffff:8ff3:2a8b
143.243.42.140 0:0:0:0:0:ffff:8ff3:2a8c
143.243.42.141 0:0:0:0:0:ffff:8ff3:2a8d
143.243.42.142 0:0:0:0:0:ffff:8ff3:2a8e
143.243.42.143 0:0:0:0:0:ffff:8ff3:2a8f
143.243.42.144 0:0:0:0:0:ffff:8ff3:2a90
143.243.42.145 0:0:0:0:0:ffff:8ff3:2a91
143.243.42.146 0:0:0:0:0:ffff:8ff3:2a92
143.243.42.147 0:0:0:0:0:ffff:8ff3:2a93
143.243.42.148 0:0:0:0:0:ffff:8ff3:2a94
143.243.42.149 0:0:0:0:0:ffff:8ff3:2a95
143.243.42.150 0:0:0:0:0:ffff:8ff3:2a96
143.243.42.151 0:0:0:0:0:ffff:8ff3:2a97
143.243.42.152 0:0:0:0:0:ffff:8ff3:2a98
143.243.42.153 0:0:0:0:0:ffff:8ff3:2a99
143.243.42.154 0:0:0:0:0:ffff:8ff3:2a9a
143.243.42.155 0:0:0:0:0:ffff:8ff3:2a9b
143.243.42.156 0:0:0:0:0:ffff:8ff3:2a9c
143.243.42.157 0:0:0:0:0:ffff:8ff3:2a9d
143.243.42.158 0:0:0:0:0:ffff:8ff3:2a9e
143.243.42.159 0:0:0:0:0:ffff:8ff3:2a9f
143.243.42.160 0:0:0:0:0:ffff:8ff3:2aa0
143.243.42.161 0:0:0:0:0:ffff:8ff3:2aa1
143.243.42.162 0:0:0:0:0:ffff:8ff3:2aa2
143.243.42.163 0:0:0:0:0:ffff:8ff3:2aa3
143.243.42.164 0:0:0:0:0:ffff:8ff3:2aa4
143.243.42.165 0:0:0:0:0:ffff:8ff3:2aa5
143.243.42.166 0:0:0:0:0:ffff:8ff3:2aa6
143.243.42.167 0:0:0:0:0:ffff:8ff3:2aa7
143.243.42.168 0:0:0:0:0:ffff:8ff3:2aa8
143.243.42.169 0:0:0:0:0:ffff:8ff3:2aa9
143.243.42.170 0:0:0:0:0:ffff:8ff3:2aaa
143.243.42.171 0:0:0:0:0:ffff:8ff3:2aab
143.243.42.172 0:0:0:0:0:ffff:8ff3:2aac
143.243.42.173 0:0:0:0:0:ffff:8ff3:2aad
143.243.42.174 0:0:0:0:0:ffff:8ff3:2aae
143.243.42.175 0:0:0:0:0:ffff:8ff3:2aaf
143.243.42.176 0:0:0:0:0:ffff:8ff3:2ab0
143.243.42.177 0:0:0:0:0:ffff:8ff3:2ab1
143.243.42.178 0:0:0:0:0:ffff:8ff3:2ab2
143.243.42.179 0:0:0:0:0:ffff:8ff3:2ab3
143.243.42.180 0:0:0:0:0:ffff:8ff3:2ab4


143.243.42.181 0:0:0:0:0:ffff:8ff3:2ab5
143.243.42.182 0:0:0:0:0:ffff:8ff3:2ab6
143.243.42.183 0:0:0:0:0:ffff:8ff3:2ab7
143.243.42.184 0:0:0:0:0:ffff:8ff3:2ab8
143.243.42.185 0:0:0:0:0:ffff:8ff3:2ab9
143.243.42.186 0:0:0:0:0:ffff:8ff3:2aba
143.243.42.187 0:0:0:0:0:ffff:8ff3:2abb
143.243.42.188 0:0:0:0:0:ffff:8ff3:2abc
143.243.42.189 0:0:0:0:0:ffff:8ff3:2abd
143.243.42.190 0:0:0:0:0:ffff:8ff3:2abe
143.243.42.191 0:0:0:0:0:ffff:8ff3:2abf
143.243.42.192 0:0:0:0:0:ffff:8ff3:2ac0
143.243.42.193 0:0:0:0:0:ffff:8ff3:2ac1
143.243.42.194 0:0:0:0:0:ffff:8ff3:2ac2
143.243.42.195 0:0:0:0:0:ffff:8ff3:2ac3
143.243.42.196 0:0:0:0:0:ffff:8ff3:2ac4
143.243.42.197 0:0:0:0:0:ffff:8ff3:2ac5
143.243.42.198 0:0:0:0:0:ffff:8ff3:2ac6
143.243.42.199 0:0:0:0:0:ffff:8ff3:2ac7
143.243.42.200 0:0:0:0:0:ffff:8ff3:2ac8
143.243.42.201 0:0:0:0:0:ffff:8ff3:2ac9
143.243.42.202 0:0:0:0:0:ffff:8ff3:2aca
143.243.42.203 0:0:0:0:0:ffff:8ff3:2acb
143.243.42.204 0:0:0:0:0:ffff:8ff3:2acc
143.243.42.205 0:0:0:0:0:ffff:8ff3:2acd
143.243.42.206 0:0:0:0:0:ffff:8ff3:2ace
143.243.42.207 0:0:0:0:0:ffff:8ff3:2acf
143.243.42.208 0:0:0:0:0:ffff:8ff3:2ad0
143.243.42.209 0:0:0:0:0:ffff:8ff3:2ad1
143.243.42.210 0:0:0:0:0:ffff:8ff3:2ad2
143.243.42.211 0:0:0:0:0:ffff:8ff3:2ad3
143.243.42.212 0:0:0:0:0:ffff:8ff3:2ad4
143.243.42.213 0:0:0:0:0:ffff:8ff3:2ad5
143.243.42.214 0:0:0:0:0:ffff:8ff3:2ad6
143.243.42.215 0:0:0:0:0:ffff:8ff3:2ad7
143.243.42.216 0:0:0:0:0:ffff:8ff3:2ad8
143.243.42.217 0:0:0:0:0:ffff:8ff3:2ad9
143.243.42.218 0:0:0:0:0:ffff:8ff3:2ada
143.243.42.219 0:0:0:0:0:ffff:8ff3:2adb
143.243.42.220 0:0:0:0:0:ffff:8ff3:2adc
143.243.42.221 0:0:0:0:0:ffff:8ff3:2add
143.243.42.222 0:0:0:0:0:ffff:8ff3:2ade
143.243.42.223 0:0:0:0:0:ffff:8ff3:2adf
143.243.42.224 0:0:0:0:0:ffff:8ff3:2ae0
143.243.42.225 0:0:0:0:0:ffff:8ff3:2ae1
143.243.42.226 0:0:0:0:0:ffff:8ff3:2ae2
143.243.42.227 0:0:0:0:0:ffff:8ff3:2ae3
143.243.42.228 0:0:0:0:0:ffff:8ff3:2ae4
143.243.42.229 0:0:0:0:0:ffff:8ff3:2ae5
143.243.42.230 0:0:0:0:0:ffff:8ff3:2ae6
143.243.42.231 0:0:0:0:0:ffff:8ff3:2ae7
143.243.42.232 0:0:0:0:0:ffff:8ff3:2ae8
143.243.42.233 0:0:0:0:0:ffff:8ff3:2ae9
143.243.42.234 0:0:0:0:0:ffff:8ff3:2aea
143.243.42.235 0:0:0:0:0:ffff:8ff3:2aeb
143.243.42.236 0:0:0:0:0:ffff:8ff3:2aec
143.243.42.237 0:0:0:0:0:ffff:8ff3:2aed
143.243.42.238 0:0:0:0:0:ffff:8ff3:2aee
143.243.42.239 0:0:0:0:0:ffff:8ff3:2aef
143.243.42.240 0:0:0:0:0:ffff:8ff3:2af0
143.243.42.241 0:0:0:0:0:ffff:8ff3:2af1
143.243.42.242 0:0:0:0:0:ffff:8ff3:2af2
143.243.42.243 0:0:0:0:0:ffff:8ff3:2af3
143.243.42.244 0:0:0:0:0:ffff:8ff3:2af4
143.243.42.245 0:0:0:0:0:ffff:8ff3:2af5
143.243.42.246 0:0:0:0:0:ffff:8ff3:2af6
143.243.42.247 0:0:0:0:0:ffff:8ff3:2af7
143.243.42.248 0:0:0:0:0:ffff:8ff3:2af8
143.243.42.249 0:0:0:0:0:ffff:8ff3:2af9
143.243.42.250 0:0:0:0:0:ffff:8ff3:2afa
143.243.42.251 0:0:0:0:0:ffff:8ff3:2afb
143.243.42.252 0:0:0:0:0:ffff:8ff3:2afc
143.243.42.253 0:0:0:0:0:ffff:8ff3:2afd
143.243.42.254 0:0:0:0:0:ffff:8ff3:2afe
143.243.42.255 0:0:0:0:0:ffff:8ff3:2aff


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.