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
170.100.42.1 0:0:0:0:0:ffff:aa64:2a01
170.100.42.2 0:0:0:0:0:ffff:aa64:2a02
170.100.42.3 0:0:0:0:0:ffff:aa64:2a03
170.100.42.4 0:0:0:0:0:ffff:aa64:2a04
170.100.42.5 0:0:0:0:0:ffff:aa64:2a05
170.100.42.6 0:0:0:0:0:ffff:aa64:2a06
170.100.42.7 0:0:0:0:0:ffff:aa64:2a07
170.100.42.8 0:0:0:0:0:ffff:aa64:2a08
170.100.42.9 0:0:0:0:0:ffff:aa64:2a09
170.100.42.10 0:0:0:0:0:ffff:aa64:2a0a
170.100.42.11 0:0:0:0:0:ffff:aa64:2a0b
170.100.42.12 0:0:0:0:0:ffff:aa64:2a0c
170.100.42.13 0:0:0:0:0:ffff:aa64:2a0d
170.100.42.14 0:0:0:0:0:ffff:aa64:2a0e
170.100.42.15 0:0:0:0:0:ffff:aa64:2a0f
170.100.42.16 0:0:0:0:0:ffff:aa64:2a10
170.100.42.17 0:0:0:0:0:ffff:aa64:2a11
170.100.42.18 0:0:0:0:0:ffff:aa64:2a12
170.100.42.19 0:0:0:0:0:ffff:aa64:2a13
170.100.42.20 0:0:0:0:0:ffff:aa64:2a14
170.100.42.21 0:0:0:0:0:ffff:aa64:2a15
170.100.42.22 0:0:0:0:0:ffff:aa64:2a16
170.100.42.23 0:0:0:0:0:ffff:aa64:2a17
170.100.42.24 0:0:0:0:0:ffff:aa64:2a18
170.100.42.25 0:0:0:0:0:ffff:aa64:2a19
170.100.42.26 0:0:0:0:0:ffff:aa64:2a1a
170.100.42.27 0:0:0:0:0:ffff:aa64:2a1b
170.100.42.28 0:0:0:0:0:ffff:aa64:2a1c
170.100.42.29 0:0:0:0:0:ffff:aa64:2a1d
170.100.42.30 0:0:0:0:0:ffff:aa64:2a1e
170.100.42.31 0:0:0:0:0:ffff:aa64:2a1f
170.100.42.32 0:0:0:0:0:ffff:aa64:2a20
170.100.42.33 0:0:0:0:0:ffff:aa64:2a21
170.100.42.34 0:0:0:0:0:ffff:aa64:2a22
170.100.42.35 0:0:0:0:0:ffff:aa64:2a23
170.100.42.36 0:0:0:0:0:ffff:aa64:2a24
170.100.42.37 0:0:0:0:0:ffff:aa64:2a25
170.100.42.38 0:0:0:0:0:ffff:aa64:2a26
170.100.42.39 0:0:0:0:0:ffff:aa64:2a27
170.100.42.40 0:0:0:0:0:ffff:aa64:2a28
170.100.42.41 0:0:0:0:0:ffff:aa64:2a29
170.100.42.42 0:0:0:0:0:ffff:aa64:2a2a
170.100.42.43 0:0:0:0:0:ffff:aa64:2a2b
170.100.42.44 0:0:0:0:0:ffff:aa64:2a2c
170.100.42.45 0:0:0:0:0:ffff:aa64:2a2d
170.100.42.46 0:0:0:0:0:ffff:aa64:2a2e
170.100.42.47 0:0:0:0:0:ffff:aa64:2a2f
170.100.42.48 0:0:0:0:0:ffff:aa64:2a30
170.100.42.49 0:0:0:0:0:ffff:aa64:2a31
170.100.42.50 0:0:0:0:0:ffff:aa64:2a32
170.100.42.51 0:0:0:0:0:ffff:aa64:2a33
170.100.42.52 0:0:0:0:0:ffff:aa64:2a34
170.100.42.53 0:0:0:0:0:ffff:aa64:2a35
170.100.42.54 0:0:0:0:0:ffff:aa64:2a36
170.100.42.55 0:0:0:0:0:ffff:aa64:2a37
170.100.42.56 0:0:0:0:0:ffff:aa64:2a38
170.100.42.57 0:0:0:0:0:ffff:aa64:2a39
170.100.42.58 0:0:0:0:0:ffff:aa64:2a3a
170.100.42.59 0:0:0:0:0:ffff:aa64:2a3b
170.100.42.60 0:0:0:0:0:ffff:aa64:2a3c


170.100.42.61 0:0:0:0:0:ffff:aa64:2a3d
170.100.42.62 0:0:0:0:0:ffff:aa64:2a3e
170.100.42.63 0:0:0:0:0:ffff:aa64:2a3f
170.100.42.64 0:0:0:0:0:ffff:aa64:2a40
170.100.42.65 0:0:0:0:0:ffff:aa64:2a41
170.100.42.66 0:0:0:0:0:ffff:aa64:2a42
170.100.42.67 0:0:0:0:0:ffff:aa64:2a43
170.100.42.68 0:0:0:0:0:ffff:aa64:2a44
170.100.42.69 0:0:0:0:0:ffff:aa64:2a45
170.100.42.70 0:0:0:0:0:ffff:aa64:2a46
170.100.42.71 0:0:0:0:0:ffff:aa64:2a47
170.100.42.72 0:0:0:0:0:ffff:aa64:2a48
170.100.42.73 0:0:0:0:0:ffff:aa64:2a49
170.100.42.74 0:0:0:0:0:ffff:aa64:2a4a
170.100.42.75 0:0:0:0:0:ffff:aa64:2a4b
170.100.42.76 0:0:0:0:0:ffff:aa64:2a4c
170.100.42.77 0:0:0:0:0:ffff:aa64:2a4d
170.100.42.78 0:0:0:0:0:ffff:aa64:2a4e
170.100.42.79 0:0:0:0:0:ffff:aa64:2a4f
170.100.42.80 0:0:0:0:0:ffff:aa64:2a50
170.100.42.81 0:0:0:0:0:ffff:aa64:2a51
170.100.42.82 0:0:0:0:0:ffff:aa64:2a52
170.100.42.83 0:0:0:0:0:ffff:aa64:2a53
170.100.42.84 0:0:0:0:0:ffff:aa64:2a54
170.100.42.85 0:0:0:0:0:ffff:aa64:2a55
170.100.42.86 0:0:0:0:0:ffff:aa64:2a56
170.100.42.87 0:0:0:0:0:ffff:aa64:2a57
170.100.42.88 0:0:0:0:0:ffff:aa64:2a58
170.100.42.89 0:0:0:0:0:ffff:aa64:2a59
170.100.42.90 0:0:0:0:0:ffff:aa64:2a5a
170.100.42.91 0:0:0:0:0:ffff:aa64:2a5b
170.100.42.92 0:0:0:0:0:ffff:aa64:2a5c
170.100.42.93 0:0:0:0:0:ffff:aa64:2a5d
170.100.42.94 0:0:0:0:0:ffff:aa64:2a5e
170.100.42.95 0:0:0:0:0:ffff:aa64:2a5f
170.100.42.96 0:0:0:0:0:ffff:aa64:2a60
170.100.42.97 0:0:0:0:0:ffff:aa64:2a61
170.100.42.98 0:0:0:0:0:ffff:aa64:2a62
170.100.42.99 0:0:0:0:0:ffff:aa64:2a63
170.100.42.100 0:0:0:0:0:ffff:aa64:2a64
170.100.42.101 0:0:0:0:0:ffff:aa64:2a65
170.100.42.102 0:0:0:0:0:ffff:aa64:2a66
170.100.42.103 0:0:0:0:0:ffff:aa64:2a67
170.100.42.104 0:0:0:0:0:ffff:aa64:2a68
170.100.42.105 0:0:0:0:0:ffff:aa64:2a69
170.100.42.106 0:0:0:0:0:ffff:aa64:2a6a
170.100.42.107 0:0:0:0:0:ffff:aa64:2a6b
170.100.42.108 0:0:0:0:0:ffff:aa64:2a6c
170.100.42.109 0:0:0:0:0:ffff:aa64:2a6d
170.100.42.110 0:0:0:0:0:ffff:aa64:2a6e
170.100.42.111 0:0:0:0:0:ffff:aa64:2a6f
170.100.42.112 0:0:0:0:0:ffff:aa64:2a70
170.100.42.113 0:0:0:0:0:ffff:aa64:2a71
170.100.42.114 0:0:0:0:0:ffff:aa64:2a72
170.100.42.115 0:0:0:0:0:ffff:aa64:2a73
170.100.42.116 0:0:0:0:0:ffff:aa64:2a74
170.100.42.117 0:0:0:0:0:ffff:aa64:2a75
170.100.42.118 0:0:0:0:0:ffff:aa64:2a76
170.100.42.119 0:0:0:0:0:ffff:aa64:2a77
170.100.42.120 0:0:0:0:0:ffff:aa64:2a78


170.100.42.121 0:0:0:0:0:ffff:aa64:2a79
170.100.42.122 0:0:0:0:0:ffff:aa64:2a7a
170.100.42.123 0:0:0:0:0:ffff:aa64:2a7b
170.100.42.124 0:0:0:0:0:ffff:aa64:2a7c
170.100.42.125 0:0:0:0:0:ffff:aa64:2a7d
170.100.42.126 0:0:0:0:0:ffff:aa64:2a7e
170.100.42.127 0:0:0:0:0:ffff:aa64:2a7f
170.100.42.128 0:0:0:0:0:ffff:aa64:2a80
170.100.42.129 0:0:0:0:0:ffff:aa64:2a81
170.100.42.130 0:0:0:0:0:ffff:aa64:2a82
170.100.42.131 0:0:0:0:0:ffff:aa64:2a83
170.100.42.132 0:0:0:0:0:ffff:aa64:2a84
170.100.42.133 0:0:0:0:0:ffff:aa64:2a85
170.100.42.134 0:0:0:0:0:ffff:aa64:2a86
170.100.42.135 0:0:0:0:0:ffff:aa64:2a87
170.100.42.136 0:0:0:0:0:ffff:aa64:2a88
170.100.42.137 0:0:0:0:0:ffff:aa64:2a89
170.100.42.138 0:0:0:0:0:ffff:aa64:2a8a
170.100.42.139 0:0:0:0:0:ffff:aa64:2a8b
170.100.42.140 0:0:0:0:0:ffff:aa64:2a8c
170.100.42.141 0:0:0:0:0:ffff:aa64:2a8d
170.100.42.142 0:0:0:0:0:ffff:aa64:2a8e
170.100.42.143 0:0:0:0:0:ffff:aa64:2a8f
170.100.42.144 0:0:0:0:0:ffff:aa64:2a90
170.100.42.145 0:0:0:0:0:ffff:aa64:2a91
170.100.42.146 0:0:0:0:0:ffff:aa64:2a92
170.100.42.147 0:0:0:0:0:ffff:aa64:2a93
170.100.42.148 0:0:0:0:0:ffff:aa64:2a94
170.100.42.149 0:0:0:0:0:ffff:aa64:2a95
170.100.42.150 0:0:0:0:0:ffff:aa64:2a96
170.100.42.151 0:0:0:0:0:ffff:aa64:2a97
170.100.42.152 0:0:0:0:0:ffff:aa64:2a98
170.100.42.153 0:0:0:0:0:ffff:aa64:2a99
170.100.42.154 0:0:0:0:0:ffff:aa64:2a9a
170.100.42.155 0:0:0:0:0:ffff:aa64:2a9b
170.100.42.156 0:0:0:0:0:ffff:aa64:2a9c
170.100.42.157 0:0:0:0:0:ffff:aa64:2a9d
170.100.42.158 0:0:0:0:0:ffff:aa64:2a9e
170.100.42.159 0:0:0:0:0:ffff:aa64:2a9f
170.100.42.160 0:0:0:0:0:ffff:aa64:2aa0
170.100.42.161 0:0:0:0:0:ffff:aa64:2aa1
170.100.42.162 0:0:0:0:0:ffff:aa64:2aa2
170.100.42.163 0:0:0:0:0:ffff:aa64:2aa3
170.100.42.164 0:0:0:0:0:ffff:aa64:2aa4
170.100.42.165 0:0:0:0:0:ffff:aa64:2aa5
170.100.42.166 0:0:0:0:0:ffff:aa64:2aa6
170.100.42.167 0:0:0:0:0:ffff:aa64:2aa7
170.100.42.168 0:0:0:0:0:ffff:aa64:2aa8
170.100.42.169 0:0:0:0:0:ffff:aa64:2aa9
170.100.42.170 0:0:0:0:0:ffff:aa64:2aaa
170.100.42.171 0:0:0:0:0:ffff:aa64:2aab
170.100.42.172 0:0:0:0:0:ffff:aa64:2aac
170.100.42.173 0:0:0:0:0:ffff:aa64:2aad
170.100.42.174 0:0:0:0:0:ffff:aa64:2aae
170.100.42.175 0:0:0:0:0:ffff:aa64:2aaf
170.100.42.176 0:0:0:0:0:ffff:aa64:2ab0
170.100.42.177 0:0:0:0:0:ffff:aa64:2ab1
170.100.42.178 0:0:0:0:0:ffff:aa64:2ab2
170.100.42.179 0:0:0:0:0:ffff:aa64:2ab3
170.100.42.180 0:0:0:0:0:ffff:aa64:2ab4


170.100.42.181 0:0:0:0:0:ffff:aa64:2ab5
170.100.42.182 0:0:0:0:0:ffff:aa64:2ab6
170.100.42.183 0:0:0:0:0:ffff:aa64:2ab7
170.100.42.184 0:0:0:0:0:ffff:aa64:2ab8
170.100.42.185 0:0:0:0:0:ffff:aa64:2ab9
170.100.42.186 0:0:0:0:0:ffff:aa64:2aba
170.100.42.187 0:0:0:0:0:ffff:aa64:2abb
170.100.42.188 0:0:0:0:0:ffff:aa64:2abc
170.100.42.189 0:0:0:0:0:ffff:aa64:2abd
170.100.42.190 0:0:0:0:0:ffff:aa64:2abe
170.100.42.191 0:0:0:0:0:ffff:aa64:2abf
170.100.42.192 0:0:0:0:0:ffff:aa64:2ac0
170.100.42.193 0:0:0:0:0:ffff:aa64:2ac1
170.100.42.194 0:0:0:0:0:ffff:aa64:2ac2
170.100.42.195 0:0:0:0:0:ffff:aa64:2ac3
170.100.42.196 0:0:0:0:0:ffff:aa64:2ac4
170.100.42.197 0:0:0:0:0:ffff:aa64:2ac5
170.100.42.198 0:0:0:0:0:ffff:aa64:2ac6
170.100.42.199 0:0:0:0:0:ffff:aa64:2ac7
170.100.42.200 0:0:0:0:0:ffff:aa64:2ac8
170.100.42.201 0:0:0:0:0:ffff:aa64:2ac9
170.100.42.202 0:0:0:0:0:ffff:aa64:2aca
170.100.42.203 0:0:0:0:0:ffff:aa64:2acb
170.100.42.204 0:0:0:0:0:ffff:aa64:2acc
170.100.42.205 0:0:0:0:0:ffff:aa64:2acd
170.100.42.206 0:0:0:0:0:ffff:aa64:2ace
170.100.42.207 0:0:0:0:0:ffff:aa64:2acf
170.100.42.208 0:0:0:0:0:ffff:aa64:2ad0
170.100.42.209 0:0:0:0:0:ffff:aa64:2ad1
170.100.42.210 0:0:0:0:0:ffff:aa64:2ad2
170.100.42.211 0:0:0:0:0:ffff:aa64:2ad3
170.100.42.212 0:0:0:0:0:ffff:aa64:2ad4
170.100.42.213 0:0:0:0:0:ffff:aa64:2ad5
170.100.42.214 0:0:0:0:0:ffff:aa64:2ad6
170.100.42.215 0:0:0:0:0:ffff:aa64:2ad7
170.100.42.216 0:0:0:0:0:ffff:aa64:2ad8
170.100.42.217 0:0:0:0:0:ffff:aa64:2ad9
170.100.42.218 0:0:0:0:0:ffff:aa64:2ada
170.100.42.219 0:0:0:0:0:ffff:aa64:2adb
170.100.42.220 0:0:0:0:0:ffff:aa64:2adc
170.100.42.221 0:0:0:0:0:ffff:aa64:2add
170.100.42.222 0:0:0:0:0:ffff:aa64:2ade
170.100.42.223 0:0:0:0:0:ffff:aa64:2adf
170.100.42.224 0:0:0:0:0:ffff:aa64:2ae0
170.100.42.225 0:0:0:0:0:ffff:aa64:2ae1
170.100.42.226 0:0:0:0:0:ffff:aa64:2ae2
170.100.42.227 0:0:0:0:0:ffff:aa64:2ae3
170.100.42.228 0:0:0:0:0:ffff:aa64:2ae4
170.100.42.229 0:0:0:0:0:ffff:aa64:2ae5
170.100.42.230 0:0:0:0:0:ffff:aa64:2ae6
170.100.42.231 0:0:0:0:0:ffff:aa64:2ae7
170.100.42.232 0:0:0:0:0:ffff:aa64:2ae8
170.100.42.233 0:0:0:0:0:ffff:aa64:2ae9
170.100.42.234 0:0:0:0:0:ffff:aa64:2aea
170.100.42.235 0:0:0:0:0:ffff:aa64:2aeb
170.100.42.236 0:0:0:0:0:ffff:aa64:2aec
170.100.42.237 0:0:0:0:0:ffff:aa64:2aed
170.100.42.238 0:0:0:0:0:ffff:aa64:2aee
170.100.42.239 0:0:0:0:0:ffff:aa64:2aef
170.100.42.240 0:0:0:0:0:ffff:aa64:2af0
170.100.42.241 0:0:0:0:0:ffff:aa64:2af1
170.100.42.242 0:0:0:0:0:ffff:aa64:2af2
170.100.42.243 0:0:0:0:0:ffff:aa64:2af3
170.100.42.244 0:0:0:0:0:ffff:aa64:2af4
170.100.42.245 0:0:0:0:0:ffff:aa64:2af5
170.100.42.246 0:0:0:0:0:ffff:aa64:2af6
170.100.42.247 0:0:0:0:0:ffff:aa64:2af7
170.100.42.248 0:0:0:0:0:ffff:aa64:2af8
170.100.42.249 0:0:0:0:0:ffff:aa64:2af9
170.100.42.250 0:0:0:0:0:ffff:aa64:2afa
170.100.42.251 0:0:0:0:0:ffff:aa64:2afb
170.100.42.252 0:0:0:0:0:ffff:aa64:2afc
170.100.42.253 0:0:0:0:0:ffff:aa64:2afd
170.100.42.254 0:0:0:0:0:ffff:aa64:2afe
170.100.42.255 0:0:0:0:0:ffff:aa64:2aff


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.