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
157.127.12.1 0:0:0:0:0:ffff:9d7f:c01
157.127.12.2 0:0:0:0:0:ffff:9d7f:c02
157.127.12.3 0:0:0:0:0:ffff:9d7f:c03
157.127.12.4 0:0:0:0:0:ffff:9d7f:c04
157.127.12.5 0:0:0:0:0:ffff:9d7f:c05
157.127.12.6 0:0:0:0:0:ffff:9d7f:c06
157.127.12.7 0:0:0:0:0:ffff:9d7f:c07
157.127.12.8 0:0:0:0:0:ffff:9d7f:c08
157.127.12.9 0:0:0:0:0:ffff:9d7f:c09
157.127.12.10 0:0:0:0:0:ffff:9d7f:c0a
157.127.12.11 0:0:0:0:0:ffff:9d7f:c0b
157.127.12.12 0:0:0:0:0:ffff:9d7f:c0c
157.127.12.13 0:0:0:0:0:ffff:9d7f:c0d
157.127.12.14 0:0:0:0:0:ffff:9d7f:c0e
157.127.12.15 0:0:0:0:0:ffff:9d7f:c0f
157.127.12.16 0:0:0:0:0:ffff:9d7f:c10
157.127.12.17 0:0:0:0:0:ffff:9d7f:c11
157.127.12.18 0:0:0:0:0:ffff:9d7f:c12
157.127.12.19 0:0:0:0:0:ffff:9d7f:c13
157.127.12.20 0:0:0:0:0:ffff:9d7f:c14
157.127.12.21 0:0:0:0:0:ffff:9d7f:c15
157.127.12.22 0:0:0:0:0:ffff:9d7f:c16
157.127.12.23 0:0:0:0:0:ffff:9d7f:c17
157.127.12.24 0:0:0:0:0:ffff:9d7f:c18
157.127.12.25 0:0:0:0:0:ffff:9d7f:c19
157.127.12.26 0:0:0:0:0:ffff:9d7f:c1a
157.127.12.27 0:0:0:0:0:ffff:9d7f:c1b
157.127.12.28 0:0:0:0:0:ffff:9d7f:c1c
157.127.12.29 0:0:0:0:0:ffff:9d7f:c1d
157.127.12.30 0:0:0:0:0:ffff:9d7f:c1e
157.127.12.31 0:0:0:0:0:ffff:9d7f:c1f
157.127.12.32 0:0:0:0:0:ffff:9d7f:c20
157.127.12.33 0:0:0:0:0:ffff:9d7f:c21
157.127.12.34 0:0:0:0:0:ffff:9d7f:c22
157.127.12.35 0:0:0:0:0:ffff:9d7f:c23
157.127.12.36 0:0:0:0:0:ffff:9d7f:c24
157.127.12.37 0:0:0:0:0:ffff:9d7f:c25
157.127.12.38 0:0:0:0:0:ffff:9d7f:c26
157.127.12.39 0:0:0:0:0:ffff:9d7f:c27
157.127.12.40 0:0:0:0:0:ffff:9d7f:c28
157.127.12.41 0:0:0:0:0:ffff:9d7f:c29
157.127.12.42 0:0:0:0:0:ffff:9d7f:c2a
157.127.12.43 0:0:0:0:0:ffff:9d7f:c2b
157.127.12.44 0:0:0:0:0:ffff:9d7f:c2c
157.127.12.45 0:0:0:0:0:ffff:9d7f:c2d
157.127.12.46 0:0:0:0:0:ffff:9d7f:c2e
157.127.12.47 0:0:0:0:0:ffff:9d7f:c2f
157.127.12.48 0:0:0:0:0:ffff:9d7f:c30
157.127.12.49 0:0:0:0:0:ffff:9d7f:c31
157.127.12.50 0:0:0:0:0:ffff:9d7f:c32
157.127.12.51 0:0:0:0:0:ffff:9d7f:c33
157.127.12.52 0:0:0:0:0:ffff:9d7f:c34
157.127.12.53 0:0:0:0:0:ffff:9d7f:c35
157.127.12.54 0:0:0:0:0:ffff:9d7f:c36
157.127.12.55 0:0:0:0:0:ffff:9d7f:c37
157.127.12.56 0:0:0:0:0:ffff:9d7f:c38
157.127.12.57 0:0:0:0:0:ffff:9d7f:c39
157.127.12.58 0:0:0:0:0:ffff:9d7f:c3a
157.127.12.59 0:0:0:0:0:ffff:9d7f:c3b
157.127.12.60 0:0:0:0:0:ffff:9d7f:c3c


157.127.12.61 0:0:0:0:0:ffff:9d7f:c3d
157.127.12.62 0:0:0:0:0:ffff:9d7f:c3e
157.127.12.63 0:0:0:0:0:ffff:9d7f:c3f
157.127.12.64 0:0:0:0:0:ffff:9d7f:c40
157.127.12.65 0:0:0:0:0:ffff:9d7f:c41
157.127.12.66 0:0:0:0:0:ffff:9d7f:c42
157.127.12.67 0:0:0:0:0:ffff:9d7f:c43
157.127.12.68 0:0:0:0:0:ffff:9d7f:c44
157.127.12.69 0:0:0:0:0:ffff:9d7f:c45
157.127.12.70 0:0:0:0:0:ffff:9d7f:c46
157.127.12.71 0:0:0:0:0:ffff:9d7f:c47
157.127.12.72 0:0:0:0:0:ffff:9d7f:c48
157.127.12.73 0:0:0:0:0:ffff:9d7f:c49
157.127.12.74 0:0:0:0:0:ffff:9d7f:c4a
157.127.12.75 0:0:0:0:0:ffff:9d7f:c4b
157.127.12.76 0:0:0:0:0:ffff:9d7f:c4c
157.127.12.77 0:0:0:0:0:ffff:9d7f:c4d
157.127.12.78 0:0:0:0:0:ffff:9d7f:c4e
157.127.12.79 0:0:0:0:0:ffff:9d7f:c4f
157.127.12.80 0:0:0:0:0:ffff:9d7f:c50
157.127.12.81 0:0:0:0:0:ffff:9d7f:c51
157.127.12.82 0:0:0:0:0:ffff:9d7f:c52
157.127.12.83 0:0:0:0:0:ffff:9d7f:c53
157.127.12.84 0:0:0:0:0:ffff:9d7f:c54
157.127.12.85 0:0:0:0:0:ffff:9d7f:c55
157.127.12.86 0:0:0:0:0:ffff:9d7f:c56
157.127.12.87 0:0:0:0:0:ffff:9d7f:c57
157.127.12.88 0:0:0:0:0:ffff:9d7f:c58
157.127.12.89 0:0:0:0:0:ffff:9d7f:c59
157.127.12.90 0:0:0:0:0:ffff:9d7f:c5a
157.127.12.91 0:0:0:0:0:ffff:9d7f:c5b
157.127.12.92 0:0:0:0:0:ffff:9d7f:c5c
157.127.12.93 0:0:0:0:0:ffff:9d7f:c5d
157.127.12.94 0:0:0:0:0:ffff:9d7f:c5e
157.127.12.95 0:0:0:0:0:ffff:9d7f:c5f
157.127.12.96 0:0:0:0:0:ffff:9d7f:c60
157.127.12.97 0:0:0:0:0:ffff:9d7f:c61
157.127.12.98 0:0:0:0:0:ffff:9d7f:c62
157.127.12.99 0:0:0:0:0:ffff:9d7f:c63
157.127.12.100 0:0:0:0:0:ffff:9d7f:c64
157.127.12.101 0:0:0:0:0:ffff:9d7f:c65
157.127.12.102 0:0:0:0:0:ffff:9d7f:c66
157.127.12.103 0:0:0:0:0:ffff:9d7f:c67
157.127.12.104 0:0:0:0:0:ffff:9d7f:c68
157.127.12.105 0:0:0:0:0:ffff:9d7f:c69
157.127.12.106 0:0:0:0:0:ffff:9d7f:c6a
157.127.12.107 0:0:0:0:0:ffff:9d7f:c6b
157.127.12.108 0:0:0:0:0:ffff:9d7f:c6c
157.127.12.109 0:0:0:0:0:ffff:9d7f:c6d
157.127.12.110 0:0:0:0:0:ffff:9d7f:c6e
157.127.12.111 0:0:0:0:0:ffff:9d7f:c6f
157.127.12.112 0:0:0:0:0:ffff:9d7f:c70
157.127.12.113 0:0:0:0:0:ffff:9d7f:c71
157.127.12.114 0:0:0:0:0:ffff:9d7f:c72
157.127.12.115 0:0:0:0:0:ffff:9d7f:c73
157.127.12.116 0:0:0:0:0:ffff:9d7f:c74
157.127.12.117 0:0:0:0:0:ffff:9d7f:c75
157.127.12.118 0:0:0:0:0:ffff:9d7f:c76
157.127.12.119 0:0:0:0:0:ffff:9d7f:c77
157.127.12.120 0:0:0:0:0:ffff:9d7f:c78


157.127.12.121 0:0:0:0:0:ffff:9d7f:c79
157.127.12.122 0:0:0:0:0:ffff:9d7f:c7a
157.127.12.123 0:0:0:0:0:ffff:9d7f:c7b
157.127.12.124 0:0:0:0:0:ffff:9d7f:c7c
157.127.12.125 0:0:0:0:0:ffff:9d7f:c7d
157.127.12.126 0:0:0:0:0:ffff:9d7f:c7e
157.127.12.127 0:0:0:0:0:ffff:9d7f:c7f
157.127.12.128 0:0:0:0:0:ffff:9d7f:c80
157.127.12.129 0:0:0:0:0:ffff:9d7f:c81
157.127.12.130 0:0:0:0:0:ffff:9d7f:c82
157.127.12.131 0:0:0:0:0:ffff:9d7f:c83
157.127.12.132 0:0:0:0:0:ffff:9d7f:c84
157.127.12.133 0:0:0:0:0:ffff:9d7f:c85
157.127.12.134 0:0:0:0:0:ffff:9d7f:c86
157.127.12.135 0:0:0:0:0:ffff:9d7f:c87
157.127.12.136 0:0:0:0:0:ffff:9d7f:c88
157.127.12.137 0:0:0:0:0:ffff:9d7f:c89
157.127.12.138 0:0:0:0:0:ffff:9d7f:c8a
157.127.12.139 0:0:0:0:0:ffff:9d7f:c8b
157.127.12.140 0:0:0:0:0:ffff:9d7f:c8c
157.127.12.141 0:0:0:0:0:ffff:9d7f:c8d
157.127.12.142 0:0:0:0:0:ffff:9d7f:c8e
157.127.12.143 0:0:0:0:0:ffff:9d7f:c8f
157.127.12.144 0:0:0:0:0:ffff:9d7f:c90
157.127.12.145 0:0:0:0:0:ffff:9d7f:c91
157.127.12.146 0:0:0:0:0:ffff:9d7f:c92
157.127.12.147 0:0:0:0:0:ffff:9d7f:c93
157.127.12.148 0:0:0:0:0:ffff:9d7f:c94
157.127.12.149 0:0:0:0:0:ffff:9d7f:c95
157.127.12.150 0:0:0:0:0:ffff:9d7f:c96
157.127.12.151 0:0:0:0:0:ffff:9d7f:c97
157.127.12.152 0:0:0:0:0:ffff:9d7f:c98
157.127.12.153 0:0:0:0:0:ffff:9d7f:c99
157.127.12.154 0:0:0:0:0:ffff:9d7f:c9a
157.127.12.155 0:0:0:0:0:ffff:9d7f:c9b
157.127.12.156 0:0:0:0:0:ffff:9d7f:c9c
157.127.12.157 0:0:0:0:0:ffff:9d7f:c9d
157.127.12.158 0:0:0:0:0:ffff:9d7f:c9e
157.127.12.159 0:0:0:0:0:ffff:9d7f:c9f
157.127.12.160 0:0:0:0:0:ffff:9d7f:ca0
157.127.12.161 0:0:0:0:0:ffff:9d7f:ca1
157.127.12.162 0:0:0:0:0:ffff:9d7f:ca2
157.127.12.163 0:0:0:0:0:ffff:9d7f:ca3
157.127.12.164 0:0:0:0:0:ffff:9d7f:ca4
157.127.12.165 0:0:0:0:0:ffff:9d7f:ca5
157.127.12.166 0:0:0:0:0:ffff:9d7f:ca6
157.127.12.167 0:0:0:0:0:ffff:9d7f:ca7
157.127.12.168 0:0:0:0:0:ffff:9d7f:ca8
157.127.12.169 0:0:0:0:0:ffff:9d7f:ca9
157.127.12.170 0:0:0:0:0:ffff:9d7f:caa
157.127.12.171 0:0:0:0:0:ffff:9d7f:cab
157.127.12.172 0:0:0:0:0:ffff:9d7f:cac
157.127.12.173 0:0:0:0:0:ffff:9d7f:cad
157.127.12.174 0:0:0:0:0:ffff:9d7f:cae
157.127.12.175 0:0:0:0:0:ffff:9d7f:caf
157.127.12.176 0:0:0:0:0:ffff:9d7f:cb0
157.127.12.177 0:0:0:0:0:ffff:9d7f:cb1
157.127.12.178 0:0:0:0:0:ffff:9d7f:cb2
157.127.12.179 0:0:0:0:0:ffff:9d7f:cb3
157.127.12.180 0:0:0:0:0:ffff:9d7f:cb4


157.127.12.181 0:0:0:0:0:ffff:9d7f:cb5
157.127.12.182 0:0:0:0:0:ffff:9d7f:cb6
157.127.12.183 0:0:0:0:0:ffff:9d7f:cb7
157.127.12.184 0:0:0:0:0:ffff:9d7f:cb8
157.127.12.185 0:0:0:0:0:ffff:9d7f:cb9
157.127.12.186 0:0:0:0:0:ffff:9d7f:cba
157.127.12.187 0:0:0:0:0:ffff:9d7f:cbb
157.127.12.188 0:0:0:0:0:ffff:9d7f:cbc
157.127.12.189 0:0:0:0:0:ffff:9d7f:cbd
157.127.12.190 0:0:0:0:0:ffff:9d7f:cbe
157.127.12.191 0:0:0:0:0:ffff:9d7f:cbf
157.127.12.192 0:0:0:0:0:ffff:9d7f:cc0
157.127.12.193 0:0:0:0:0:ffff:9d7f:cc1
157.127.12.194 0:0:0:0:0:ffff:9d7f:cc2
157.127.12.195 0:0:0:0:0:ffff:9d7f:cc3
157.127.12.196 0:0:0:0:0:ffff:9d7f:cc4
157.127.12.197 0:0:0:0:0:ffff:9d7f:cc5
157.127.12.198 0:0:0:0:0:ffff:9d7f:cc6
157.127.12.199 0:0:0:0:0:ffff:9d7f:cc7
157.127.12.200 0:0:0:0:0:ffff:9d7f:cc8
157.127.12.201 0:0:0:0:0:ffff:9d7f:cc9
157.127.12.202 0:0:0:0:0:ffff:9d7f:cca
157.127.12.203 0:0:0:0:0:ffff:9d7f:ccb
157.127.12.204 0:0:0:0:0:ffff:9d7f:ccc
157.127.12.205 0:0:0:0:0:ffff:9d7f:ccd
157.127.12.206 0:0:0:0:0:ffff:9d7f:cce
157.127.12.207 0:0:0:0:0:ffff:9d7f:ccf
157.127.12.208 0:0:0:0:0:ffff:9d7f:cd0
157.127.12.209 0:0:0:0:0:ffff:9d7f:cd1
157.127.12.210 0:0:0:0:0:ffff:9d7f:cd2
157.127.12.211 0:0:0:0:0:ffff:9d7f:cd3
157.127.12.212 0:0:0:0:0:ffff:9d7f:cd4
157.127.12.213 0:0:0:0:0:ffff:9d7f:cd5
157.127.12.214 0:0:0:0:0:ffff:9d7f:cd6
157.127.12.215 0:0:0:0:0:ffff:9d7f:cd7
157.127.12.216 0:0:0:0:0:ffff:9d7f:cd8
157.127.12.217 0:0:0:0:0:ffff:9d7f:cd9
157.127.12.218 0:0:0:0:0:ffff:9d7f:cda
157.127.12.219 0:0:0:0:0:ffff:9d7f:cdb
157.127.12.220 0:0:0:0:0:ffff:9d7f:cdc
157.127.12.221 0:0:0:0:0:ffff:9d7f:cdd
157.127.12.222 0:0:0:0:0:ffff:9d7f:cde
157.127.12.223 0:0:0:0:0:ffff:9d7f:cdf
157.127.12.224 0:0:0:0:0:ffff:9d7f:ce0
157.127.12.225 0:0:0:0:0:ffff:9d7f:ce1
157.127.12.226 0:0:0:0:0:ffff:9d7f:ce2
157.127.12.227 0:0:0:0:0:ffff:9d7f:ce3
157.127.12.228 0:0:0:0:0:ffff:9d7f:ce4
157.127.12.229 0:0:0:0:0:ffff:9d7f:ce5
157.127.12.230 0:0:0:0:0:ffff:9d7f:ce6
157.127.12.231 0:0:0:0:0:ffff:9d7f:ce7
157.127.12.232 0:0:0:0:0:ffff:9d7f:ce8
157.127.12.233 0:0:0:0:0:ffff:9d7f:ce9
157.127.12.234 0:0:0:0:0:ffff:9d7f:cea
157.127.12.235 0:0:0:0:0:ffff:9d7f:ceb
157.127.12.236 0:0:0:0:0:ffff:9d7f:cec
157.127.12.237 0:0:0:0:0:ffff:9d7f:ced
157.127.12.238 0:0:0:0:0:ffff:9d7f:cee
157.127.12.239 0:0:0:0:0:ffff:9d7f:cef
157.127.12.240 0:0:0:0:0:ffff:9d7f:cf0
157.127.12.241 0:0:0:0:0:ffff:9d7f:cf1
157.127.12.242 0:0:0:0:0:ffff:9d7f:cf2
157.127.12.243 0:0:0:0:0:ffff:9d7f:cf3
157.127.12.244 0:0:0:0:0:ffff:9d7f:cf4
157.127.12.245 0:0:0:0:0:ffff:9d7f:cf5
157.127.12.246 0:0:0:0:0:ffff:9d7f:cf6
157.127.12.247 0:0:0:0:0:ffff:9d7f:cf7
157.127.12.248 0:0:0:0:0:ffff:9d7f:cf8
157.127.12.249 0:0:0:0:0:ffff:9d7f:cf9
157.127.12.250 0:0:0:0:0:ffff:9d7f:cfa
157.127.12.251 0:0:0:0:0:ffff:9d7f:cfb
157.127.12.252 0:0:0:0:0:ffff:9d7f:cfc
157.127.12.253 0:0:0:0:0:ffff:9d7f:cfd
157.127.12.254 0:0:0:0:0:ffff:9d7f:cfe
157.127.12.255 0:0:0:0:0:ffff:9d7f:cff


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.