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
3.123.156.1 0:0:0:0:0:ffff:37b:9c01
3.123.156.2 0:0:0:0:0:ffff:37b:9c02
3.123.156.3 0:0:0:0:0:ffff:37b:9c03
3.123.156.4 0:0:0:0:0:ffff:37b:9c04
3.123.156.5 0:0:0:0:0:ffff:37b:9c05
3.123.156.6 0:0:0:0:0:ffff:37b:9c06
3.123.156.7 0:0:0:0:0:ffff:37b:9c07
3.123.156.8 0:0:0:0:0:ffff:37b:9c08
3.123.156.9 0:0:0:0:0:ffff:37b:9c09
3.123.156.10 0:0:0:0:0:ffff:37b:9c0a
3.123.156.11 0:0:0:0:0:ffff:37b:9c0b
3.123.156.12 0:0:0:0:0:ffff:37b:9c0c
3.123.156.13 0:0:0:0:0:ffff:37b:9c0d
3.123.156.14 0:0:0:0:0:ffff:37b:9c0e
3.123.156.15 0:0:0:0:0:ffff:37b:9c0f
3.123.156.16 0:0:0:0:0:ffff:37b:9c10
3.123.156.17 0:0:0:0:0:ffff:37b:9c11
3.123.156.18 0:0:0:0:0:ffff:37b:9c12
3.123.156.19 0:0:0:0:0:ffff:37b:9c13
3.123.156.20 0:0:0:0:0:ffff:37b:9c14
3.123.156.21 0:0:0:0:0:ffff:37b:9c15
3.123.156.22 0:0:0:0:0:ffff:37b:9c16
3.123.156.23 0:0:0:0:0:ffff:37b:9c17
3.123.156.24 0:0:0:0:0:ffff:37b:9c18
3.123.156.25 0:0:0:0:0:ffff:37b:9c19
3.123.156.26 0:0:0:0:0:ffff:37b:9c1a
3.123.156.27 0:0:0:0:0:ffff:37b:9c1b
3.123.156.28 0:0:0:0:0:ffff:37b:9c1c
3.123.156.29 0:0:0:0:0:ffff:37b:9c1d
3.123.156.30 0:0:0:0:0:ffff:37b:9c1e
3.123.156.31 0:0:0:0:0:ffff:37b:9c1f
3.123.156.32 0:0:0:0:0:ffff:37b:9c20
3.123.156.33 0:0:0:0:0:ffff:37b:9c21
3.123.156.34 0:0:0:0:0:ffff:37b:9c22
3.123.156.35 0:0:0:0:0:ffff:37b:9c23
3.123.156.36 0:0:0:0:0:ffff:37b:9c24
3.123.156.37 0:0:0:0:0:ffff:37b:9c25
3.123.156.38 0:0:0:0:0:ffff:37b:9c26
3.123.156.39 0:0:0:0:0:ffff:37b:9c27
3.123.156.40 0:0:0:0:0:ffff:37b:9c28
3.123.156.41 0:0:0:0:0:ffff:37b:9c29
3.123.156.42 0:0:0:0:0:ffff:37b:9c2a
3.123.156.43 0:0:0:0:0:ffff:37b:9c2b
3.123.156.44 0:0:0:0:0:ffff:37b:9c2c
3.123.156.45 0:0:0:0:0:ffff:37b:9c2d
3.123.156.46 0:0:0:0:0:ffff:37b:9c2e
3.123.156.47 0:0:0:0:0:ffff:37b:9c2f
3.123.156.48 0:0:0:0:0:ffff:37b:9c30
3.123.156.49 0:0:0:0:0:ffff:37b:9c31
3.123.156.50 0:0:0:0:0:ffff:37b:9c32
3.123.156.51 0:0:0:0:0:ffff:37b:9c33
3.123.156.52 0:0:0:0:0:ffff:37b:9c34
3.123.156.53 0:0:0:0:0:ffff:37b:9c35
3.123.156.54 0:0:0:0:0:ffff:37b:9c36
3.123.156.55 0:0:0:0:0:ffff:37b:9c37
3.123.156.56 0:0:0:0:0:ffff:37b:9c38
3.123.156.57 0:0:0:0:0:ffff:37b:9c39
3.123.156.58 0:0:0:0:0:ffff:37b:9c3a
3.123.156.59 0:0:0:0:0:ffff:37b:9c3b
3.123.156.60 0:0:0:0:0:ffff:37b:9c3c


3.123.156.61 0:0:0:0:0:ffff:37b:9c3d
3.123.156.62 0:0:0:0:0:ffff:37b:9c3e
3.123.156.63 0:0:0:0:0:ffff:37b:9c3f
3.123.156.64 0:0:0:0:0:ffff:37b:9c40
3.123.156.65 0:0:0:0:0:ffff:37b:9c41
3.123.156.66 0:0:0:0:0:ffff:37b:9c42
3.123.156.67 0:0:0:0:0:ffff:37b:9c43
3.123.156.68 0:0:0:0:0:ffff:37b:9c44
3.123.156.69 0:0:0:0:0:ffff:37b:9c45
3.123.156.70 0:0:0:0:0:ffff:37b:9c46
3.123.156.71 0:0:0:0:0:ffff:37b:9c47
3.123.156.72 0:0:0:0:0:ffff:37b:9c48
3.123.156.73 0:0:0:0:0:ffff:37b:9c49
3.123.156.74 0:0:0:0:0:ffff:37b:9c4a
3.123.156.75 0:0:0:0:0:ffff:37b:9c4b
3.123.156.76 0:0:0:0:0:ffff:37b:9c4c
3.123.156.77 0:0:0:0:0:ffff:37b:9c4d
3.123.156.78 0:0:0:0:0:ffff:37b:9c4e
3.123.156.79 0:0:0:0:0:ffff:37b:9c4f
3.123.156.80 0:0:0:0:0:ffff:37b:9c50
3.123.156.81 0:0:0:0:0:ffff:37b:9c51
3.123.156.82 0:0:0:0:0:ffff:37b:9c52
3.123.156.83 0:0:0:0:0:ffff:37b:9c53
3.123.156.84 0:0:0:0:0:ffff:37b:9c54
3.123.156.85 0:0:0:0:0:ffff:37b:9c55
3.123.156.86 0:0:0:0:0:ffff:37b:9c56
3.123.156.87 0:0:0:0:0:ffff:37b:9c57
3.123.156.88 0:0:0:0:0:ffff:37b:9c58
3.123.156.89 0:0:0:0:0:ffff:37b:9c59
3.123.156.90 0:0:0:0:0:ffff:37b:9c5a
3.123.156.91 0:0:0:0:0:ffff:37b:9c5b
3.123.156.92 0:0:0:0:0:ffff:37b:9c5c
3.123.156.93 0:0:0:0:0:ffff:37b:9c5d
3.123.156.94 0:0:0:0:0:ffff:37b:9c5e
3.123.156.95 0:0:0:0:0:ffff:37b:9c5f
3.123.156.96 0:0:0:0:0:ffff:37b:9c60
3.123.156.97 0:0:0:0:0:ffff:37b:9c61
3.123.156.98 0:0:0:0:0:ffff:37b:9c62
3.123.156.99 0:0:0:0:0:ffff:37b:9c63
3.123.156.100 0:0:0:0:0:ffff:37b:9c64
3.123.156.101 0:0:0:0:0:ffff:37b:9c65
3.123.156.102 0:0:0:0:0:ffff:37b:9c66
3.123.156.103 0:0:0:0:0:ffff:37b:9c67
3.123.156.104 0:0:0:0:0:ffff:37b:9c68
3.123.156.105 0:0:0:0:0:ffff:37b:9c69
3.123.156.106 0:0:0:0:0:ffff:37b:9c6a
3.123.156.107 0:0:0:0:0:ffff:37b:9c6b
3.123.156.108 0:0:0:0:0:ffff:37b:9c6c
3.123.156.109 0:0:0:0:0:ffff:37b:9c6d
3.123.156.110 0:0:0:0:0:ffff:37b:9c6e
3.123.156.111 0:0:0:0:0:ffff:37b:9c6f
3.123.156.112 0:0:0:0:0:ffff:37b:9c70
3.123.156.113 0:0:0:0:0:ffff:37b:9c71
3.123.156.114 0:0:0:0:0:ffff:37b:9c72
3.123.156.115 0:0:0:0:0:ffff:37b:9c73
3.123.156.116 0:0:0:0:0:ffff:37b:9c74
3.123.156.117 0:0:0:0:0:ffff:37b:9c75
3.123.156.118 0:0:0:0:0:ffff:37b:9c76
3.123.156.119 0:0:0:0:0:ffff:37b:9c77
3.123.156.120 0:0:0:0:0:ffff:37b:9c78


3.123.156.121 0:0:0:0:0:ffff:37b:9c79
3.123.156.122 0:0:0:0:0:ffff:37b:9c7a
3.123.156.123 0:0:0:0:0:ffff:37b:9c7b
3.123.156.124 0:0:0:0:0:ffff:37b:9c7c
3.123.156.125 0:0:0:0:0:ffff:37b:9c7d
3.123.156.126 0:0:0:0:0:ffff:37b:9c7e
3.123.156.127 0:0:0:0:0:ffff:37b:9c7f
3.123.156.128 0:0:0:0:0:ffff:37b:9c80
3.123.156.129 0:0:0:0:0:ffff:37b:9c81
3.123.156.130 0:0:0:0:0:ffff:37b:9c82
3.123.156.131 0:0:0:0:0:ffff:37b:9c83
3.123.156.132 0:0:0:0:0:ffff:37b:9c84
3.123.156.133 0:0:0:0:0:ffff:37b:9c85
3.123.156.134 0:0:0:0:0:ffff:37b:9c86
3.123.156.135 0:0:0:0:0:ffff:37b:9c87
3.123.156.136 0:0:0:0:0:ffff:37b:9c88
3.123.156.137 0:0:0:0:0:ffff:37b:9c89
3.123.156.138 0:0:0:0:0:ffff:37b:9c8a
3.123.156.139 0:0:0:0:0:ffff:37b:9c8b
3.123.156.140 0:0:0:0:0:ffff:37b:9c8c
3.123.156.141 0:0:0:0:0:ffff:37b:9c8d
3.123.156.142 0:0:0:0:0:ffff:37b:9c8e
3.123.156.143 0:0:0:0:0:ffff:37b:9c8f
3.123.156.144 0:0:0:0:0:ffff:37b:9c90
3.123.156.145 0:0:0:0:0:ffff:37b:9c91
3.123.156.146 0:0:0:0:0:ffff:37b:9c92
3.123.156.147 0:0:0:0:0:ffff:37b:9c93
3.123.156.148 0:0:0:0:0:ffff:37b:9c94
3.123.156.149 0:0:0:0:0:ffff:37b:9c95
3.123.156.150 0:0:0:0:0:ffff:37b:9c96
3.123.156.151 0:0:0:0:0:ffff:37b:9c97
3.123.156.152 0:0:0:0:0:ffff:37b:9c98
3.123.156.153 0:0:0:0:0:ffff:37b:9c99
3.123.156.154 0:0:0:0:0:ffff:37b:9c9a
3.123.156.155 0:0:0:0:0:ffff:37b:9c9b
3.123.156.156 0:0:0:0:0:ffff:37b:9c9c
3.123.156.157 0:0:0:0:0:ffff:37b:9c9d
3.123.156.158 0:0:0:0:0:ffff:37b:9c9e
3.123.156.159 0:0:0:0:0:ffff:37b:9c9f
3.123.156.160 0:0:0:0:0:ffff:37b:9ca0
3.123.156.161 0:0:0:0:0:ffff:37b:9ca1
3.123.156.162 0:0:0:0:0:ffff:37b:9ca2
3.123.156.163 0:0:0:0:0:ffff:37b:9ca3
3.123.156.164 0:0:0:0:0:ffff:37b:9ca4
3.123.156.165 0:0:0:0:0:ffff:37b:9ca5
3.123.156.166 0:0:0:0:0:ffff:37b:9ca6
3.123.156.167 0:0:0:0:0:ffff:37b:9ca7
3.123.156.168 0:0:0:0:0:ffff:37b:9ca8
3.123.156.169 0:0:0:0:0:ffff:37b:9ca9
3.123.156.170 0:0:0:0:0:ffff:37b:9caa
3.123.156.171 0:0:0:0:0:ffff:37b:9cab
3.123.156.172 0:0:0:0:0:ffff:37b:9cac
3.123.156.173 0:0:0:0:0:ffff:37b:9cad
3.123.156.174 0:0:0:0:0:ffff:37b:9cae
3.123.156.175 0:0:0:0:0:ffff:37b:9caf
3.123.156.176 0:0:0:0:0:ffff:37b:9cb0
3.123.156.177 0:0:0:0:0:ffff:37b:9cb1
3.123.156.178 0:0:0:0:0:ffff:37b:9cb2
3.123.156.179 0:0:0:0:0:ffff:37b:9cb3
3.123.156.180 0:0:0:0:0:ffff:37b:9cb4


3.123.156.181 0:0:0:0:0:ffff:37b:9cb5
3.123.156.182 0:0:0:0:0:ffff:37b:9cb6
3.123.156.183 0:0:0:0:0:ffff:37b:9cb7
3.123.156.184 0:0:0:0:0:ffff:37b:9cb8
3.123.156.185 0:0:0:0:0:ffff:37b:9cb9
3.123.156.186 0:0:0:0:0:ffff:37b:9cba
3.123.156.187 0:0:0:0:0:ffff:37b:9cbb
3.123.156.188 0:0:0:0:0:ffff:37b:9cbc
3.123.156.189 0:0:0:0:0:ffff:37b:9cbd
3.123.156.190 0:0:0:0:0:ffff:37b:9cbe
3.123.156.191 0:0:0:0:0:ffff:37b:9cbf
3.123.156.192 0:0:0:0:0:ffff:37b:9cc0
3.123.156.193 0:0:0:0:0:ffff:37b:9cc1
3.123.156.194 0:0:0:0:0:ffff:37b:9cc2
3.123.156.195 0:0:0:0:0:ffff:37b:9cc3
3.123.156.196 0:0:0:0:0:ffff:37b:9cc4
3.123.156.197 0:0:0:0:0:ffff:37b:9cc5
3.123.156.198 0:0:0:0:0:ffff:37b:9cc6
3.123.156.199 0:0:0:0:0:ffff:37b:9cc7
3.123.156.200 0:0:0:0:0:ffff:37b:9cc8
3.123.156.201 0:0:0:0:0:ffff:37b:9cc9
3.123.156.202 0:0:0:0:0:ffff:37b:9cca
3.123.156.203 0:0:0:0:0:ffff:37b:9ccb
3.123.156.204 0:0:0:0:0:ffff:37b:9ccc
3.123.156.205 0:0:0:0:0:ffff:37b:9ccd
3.123.156.206 0:0:0:0:0:ffff:37b:9cce
3.123.156.207 0:0:0:0:0:ffff:37b:9ccf
3.123.156.208 0:0:0:0:0:ffff:37b:9cd0
3.123.156.209 0:0:0:0:0:ffff:37b:9cd1
3.123.156.210 0:0:0:0:0:ffff:37b:9cd2
3.123.156.211 0:0:0:0:0:ffff:37b:9cd3
3.123.156.212 0:0:0:0:0:ffff:37b:9cd4
3.123.156.213 0:0:0:0:0:ffff:37b:9cd5
3.123.156.214 0:0:0:0:0:ffff:37b:9cd6
3.123.156.215 0:0:0:0:0:ffff:37b:9cd7
3.123.156.216 0:0:0:0:0:ffff:37b:9cd8
3.123.156.217 0:0:0:0:0:ffff:37b:9cd9
3.123.156.218 0:0:0:0:0:ffff:37b:9cda
3.123.156.219 0:0:0:0:0:ffff:37b:9cdb
3.123.156.220 0:0:0:0:0:ffff:37b:9cdc
3.123.156.221 0:0:0:0:0:ffff:37b:9cdd
3.123.156.222 0:0:0:0:0:ffff:37b:9cde
3.123.156.223 0:0:0:0:0:ffff:37b:9cdf
3.123.156.224 0:0:0:0:0:ffff:37b:9ce0
3.123.156.225 0:0:0:0:0:ffff:37b:9ce1
3.123.156.226 0:0:0:0:0:ffff:37b:9ce2
3.123.156.227 0:0:0:0:0:ffff:37b:9ce3
3.123.156.228 0:0:0:0:0:ffff:37b:9ce4
3.123.156.229 0:0:0:0:0:ffff:37b:9ce5
3.123.156.230 0:0:0:0:0:ffff:37b:9ce6
3.123.156.231 0:0:0:0:0:ffff:37b:9ce7
3.123.156.232 0:0:0:0:0:ffff:37b:9ce8
3.123.156.233 0:0:0:0:0:ffff:37b:9ce9
3.123.156.234 0:0:0:0:0:ffff:37b:9cea
3.123.156.235 0:0:0:0:0:ffff:37b:9ceb
3.123.156.236 0:0:0:0:0:ffff:37b:9cec
3.123.156.237 0:0:0:0:0:ffff:37b:9ced
3.123.156.238 0:0:0:0:0:ffff:37b:9cee
3.123.156.239 0:0:0:0:0:ffff:37b:9cef
3.123.156.240 0:0:0:0:0:ffff:37b:9cf0
3.123.156.241 0:0:0:0:0:ffff:37b:9cf1
3.123.156.242 0:0:0:0:0:ffff:37b:9cf2
3.123.156.243 0:0:0:0:0:ffff:37b:9cf3
3.123.156.244 0:0:0:0:0:ffff:37b:9cf4
3.123.156.245 0:0:0:0:0:ffff:37b:9cf5
3.123.156.246 0:0:0:0:0:ffff:37b:9cf6
3.123.156.247 0:0:0:0:0:ffff:37b:9cf7
3.123.156.248 0:0:0:0:0:ffff:37b:9cf8
3.123.156.249 0:0:0:0:0:ffff:37b:9cf9
3.123.156.250 0:0:0:0:0:ffff:37b:9cfa
3.123.156.251 0:0:0:0:0:ffff:37b:9cfb
3.123.156.252 0:0:0:0:0:ffff:37b:9cfc
3.123.156.253 0:0:0:0:0:ffff:37b:9cfd
3.123.156.254 0:0:0:0:0:ffff:37b:9cfe
3.123.156.255 0:0:0:0:0:ffff:37b:9cff


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.