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
3.123.124.1 0:0:0:0:0:ffff:37b:7c01
3.123.124.2 0:0:0:0:0:ffff:37b:7c02
3.123.124.3 0:0:0:0:0:ffff:37b:7c03
3.123.124.4 0:0:0:0:0:ffff:37b:7c04
3.123.124.5 0:0:0:0:0:ffff:37b:7c05
3.123.124.6 0:0:0:0:0:ffff:37b:7c06
3.123.124.7 0:0:0:0:0:ffff:37b:7c07
3.123.124.8 0:0:0:0:0:ffff:37b:7c08
3.123.124.9 0:0:0:0:0:ffff:37b:7c09
3.123.124.10 0:0:0:0:0:ffff:37b:7c0a
3.123.124.11 0:0:0:0:0:ffff:37b:7c0b
3.123.124.12 0:0:0:0:0:ffff:37b:7c0c
3.123.124.13 0:0:0:0:0:ffff:37b:7c0d
3.123.124.14 0:0:0:0:0:ffff:37b:7c0e
3.123.124.15 0:0:0:0:0:ffff:37b:7c0f
3.123.124.16 0:0:0:0:0:ffff:37b:7c10
3.123.124.17 0:0:0:0:0:ffff:37b:7c11
3.123.124.18 0:0:0:0:0:ffff:37b:7c12
3.123.124.19 0:0:0:0:0:ffff:37b:7c13
3.123.124.20 0:0:0:0:0:ffff:37b:7c14
3.123.124.21 0:0:0:0:0:ffff:37b:7c15
3.123.124.22 0:0:0:0:0:ffff:37b:7c16
3.123.124.23 0:0:0:0:0:ffff:37b:7c17
3.123.124.24 0:0:0:0:0:ffff:37b:7c18
3.123.124.25 0:0:0:0:0:ffff:37b:7c19
3.123.124.26 0:0:0:0:0:ffff:37b:7c1a
3.123.124.27 0:0:0:0:0:ffff:37b:7c1b
3.123.124.28 0:0:0:0:0:ffff:37b:7c1c
3.123.124.29 0:0:0:0:0:ffff:37b:7c1d
3.123.124.30 0:0:0:0:0:ffff:37b:7c1e
3.123.124.31 0:0:0:0:0:ffff:37b:7c1f
3.123.124.32 0:0:0:0:0:ffff:37b:7c20
3.123.124.33 0:0:0:0:0:ffff:37b:7c21
3.123.124.34 0:0:0:0:0:ffff:37b:7c22
3.123.124.35 0:0:0:0:0:ffff:37b:7c23
3.123.124.36 0:0:0:0:0:ffff:37b:7c24
3.123.124.37 0:0:0:0:0:ffff:37b:7c25
3.123.124.38 0:0:0:0:0:ffff:37b:7c26
3.123.124.39 0:0:0:0:0:ffff:37b:7c27
3.123.124.40 0:0:0:0:0:ffff:37b:7c28
3.123.124.41 0:0:0:0:0:ffff:37b:7c29
3.123.124.42 0:0:0:0:0:ffff:37b:7c2a
3.123.124.43 0:0:0:0:0:ffff:37b:7c2b
3.123.124.44 0:0:0:0:0:ffff:37b:7c2c
3.123.124.45 0:0:0:0:0:ffff:37b:7c2d
3.123.124.46 0:0:0:0:0:ffff:37b:7c2e
3.123.124.47 0:0:0:0:0:ffff:37b:7c2f
3.123.124.48 0:0:0:0:0:ffff:37b:7c30
3.123.124.49 0:0:0:0:0:ffff:37b:7c31
3.123.124.50 0:0:0:0:0:ffff:37b:7c32
3.123.124.51 0:0:0:0:0:ffff:37b:7c33
3.123.124.52 0:0:0:0:0:ffff:37b:7c34
3.123.124.53 0:0:0:0:0:ffff:37b:7c35
3.123.124.54 0:0:0:0:0:ffff:37b:7c36
3.123.124.55 0:0:0:0:0:ffff:37b:7c37
3.123.124.56 0:0:0:0:0:ffff:37b:7c38
3.123.124.57 0:0:0:0:0:ffff:37b:7c39
3.123.124.58 0:0:0:0:0:ffff:37b:7c3a
3.123.124.59 0:0:0:0:0:ffff:37b:7c3b
3.123.124.60 0:0:0:0:0:ffff:37b:7c3c


3.123.124.61 0:0:0:0:0:ffff:37b:7c3d
3.123.124.62 0:0:0:0:0:ffff:37b:7c3e
3.123.124.63 0:0:0:0:0:ffff:37b:7c3f
3.123.124.64 0:0:0:0:0:ffff:37b:7c40
3.123.124.65 0:0:0:0:0:ffff:37b:7c41
3.123.124.66 0:0:0:0:0:ffff:37b:7c42
3.123.124.67 0:0:0:0:0:ffff:37b:7c43
3.123.124.68 0:0:0:0:0:ffff:37b:7c44
3.123.124.69 0:0:0:0:0:ffff:37b:7c45
3.123.124.70 0:0:0:0:0:ffff:37b:7c46
3.123.124.71 0:0:0:0:0:ffff:37b:7c47
3.123.124.72 0:0:0:0:0:ffff:37b:7c48
3.123.124.73 0:0:0:0:0:ffff:37b:7c49
3.123.124.74 0:0:0:0:0:ffff:37b:7c4a
3.123.124.75 0:0:0:0:0:ffff:37b:7c4b
3.123.124.76 0:0:0:0:0:ffff:37b:7c4c
3.123.124.77 0:0:0:0:0:ffff:37b:7c4d
3.123.124.78 0:0:0:0:0:ffff:37b:7c4e
3.123.124.79 0:0:0:0:0:ffff:37b:7c4f
3.123.124.80 0:0:0:0:0:ffff:37b:7c50
3.123.124.81 0:0:0:0:0:ffff:37b:7c51
3.123.124.82 0:0:0:0:0:ffff:37b:7c52
3.123.124.83 0:0:0:0:0:ffff:37b:7c53
3.123.124.84 0:0:0:0:0:ffff:37b:7c54
3.123.124.85 0:0:0:0:0:ffff:37b:7c55
3.123.124.86 0:0:0:0:0:ffff:37b:7c56
3.123.124.87 0:0:0:0:0:ffff:37b:7c57
3.123.124.88 0:0:0:0:0:ffff:37b:7c58
3.123.124.89 0:0:0:0:0:ffff:37b:7c59
3.123.124.90 0:0:0:0:0:ffff:37b:7c5a
3.123.124.91 0:0:0:0:0:ffff:37b:7c5b
3.123.124.92 0:0:0:0:0:ffff:37b:7c5c
3.123.124.93 0:0:0:0:0:ffff:37b:7c5d
3.123.124.94 0:0:0:0:0:ffff:37b:7c5e
3.123.124.95 0:0:0:0:0:ffff:37b:7c5f
3.123.124.96 0:0:0:0:0:ffff:37b:7c60
3.123.124.97 0:0:0:0:0:ffff:37b:7c61
3.123.124.98 0:0:0:0:0:ffff:37b:7c62
3.123.124.99 0:0:0:0:0:ffff:37b:7c63
3.123.124.100 0:0:0:0:0:ffff:37b:7c64
3.123.124.101 0:0:0:0:0:ffff:37b:7c65
3.123.124.102 0:0:0:0:0:ffff:37b:7c66
3.123.124.103 0:0:0:0:0:ffff:37b:7c67
3.123.124.104 0:0:0:0:0:ffff:37b:7c68
3.123.124.105 0:0:0:0:0:ffff:37b:7c69
3.123.124.106 0:0:0:0:0:ffff:37b:7c6a
3.123.124.107 0:0:0:0:0:ffff:37b:7c6b
3.123.124.108 0:0:0:0:0:ffff:37b:7c6c
3.123.124.109 0:0:0:0:0:ffff:37b:7c6d
3.123.124.110 0:0:0:0:0:ffff:37b:7c6e
3.123.124.111 0:0:0:0:0:ffff:37b:7c6f
3.123.124.112 0:0:0:0:0:ffff:37b:7c70
3.123.124.113 0:0:0:0:0:ffff:37b:7c71
3.123.124.114 0:0:0:0:0:ffff:37b:7c72
3.123.124.115 0:0:0:0:0:ffff:37b:7c73
3.123.124.116 0:0:0:0:0:ffff:37b:7c74
3.123.124.117 0:0:0:0:0:ffff:37b:7c75
3.123.124.118 0:0:0:0:0:ffff:37b:7c76
3.123.124.119 0:0:0:0:0:ffff:37b:7c77
3.123.124.120 0:0:0:0:0:ffff:37b:7c78


3.123.124.121 0:0:0:0:0:ffff:37b:7c79
3.123.124.122 0:0:0:0:0:ffff:37b:7c7a
3.123.124.123 0:0:0:0:0:ffff:37b:7c7b
3.123.124.124 0:0:0:0:0:ffff:37b:7c7c
3.123.124.125 0:0:0:0:0:ffff:37b:7c7d
3.123.124.126 0:0:0:0:0:ffff:37b:7c7e
3.123.124.127 0:0:0:0:0:ffff:37b:7c7f
3.123.124.128 0:0:0:0:0:ffff:37b:7c80
3.123.124.129 0:0:0:0:0:ffff:37b:7c81
3.123.124.130 0:0:0:0:0:ffff:37b:7c82
3.123.124.131 0:0:0:0:0:ffff:37b:7c83
3.123.124.132 0:0:0:0:0:ffff:37b:7c84
3.123.124.133 0:0:0:0:0:ffff:37b:7c85
3.123.124.134 0:0:0:0:0:ffff:37b:7c86
3.123.124.135 0:0:0:0:0:ffff:37b:7c87
3.123.124.136 0:0:0:0:0:ffff:37b:7c88
3.123.124.137 0:0:0:0:0:ffff:37b:7c89
3.123.124.138 0:0:0:0:0:ffff:37b:7c8a
3.123.124.139 0:0:0:0:0:ffff:37b:7c8b
3.123.124.140 0:0:0:0:0:ffff:37b:7c8c
3.123.124.141 0:0:0:0:0:ffff:37b:7c8d
3.123.124.142 0:0:0:0:0:ffff:37b:7c8e
3.123.124.143 0:0:0:0:0:ffff:37b:7c8f
3.123.124.144 0:0:0:0:0:ffff:37b:7c90
3.123.124.145 0:0:0:0:0:ffff:37b:7c91
3.123.124.146 0:0:0:0:0:ffff:37b:7c92
3.123.124.147 0:0:0:0:0:ffff:37b:7c93
3.123.124.148 0:0:0:0:0:ffff:37b:7c94
3.123.124.149 0:0:0:0:0:ffff:37b:7c95
3.123.124.150 0:0:0:0:0:ffff:37b:7c96
3.123.124.151 0:0:0:0:0:ffff:37b:7c97
3.123.124.152 0:0:0:0:0:ffff:37b:7c98
3.123.124.153 0:0:0:0:0:ffff:37b:7c99
3.123.124.154 0:0:0:0:0:ffff:37b:7c9a
3.123.124.155 0:0:0:0:0:ffff:37b:7c9b
3.123.124.156 0:0:0:0:0:ffff:37b:7c9c
3.123.124.157 0:0:0:0:0:ffff:37b:7c9d
3.123.124.158 0:0:0:0:0:ffff:37b:7c9e
3.123.124.159 0:0:0:0:0:ffff:37b:7c9f
3.123.124.160 0:0:0:0:0:ffff:37b:7ca0
3.123.124.161 0:0:0:0:0:ffff:37b:7ca1
3.123.124.162 0:0:0:0:0:ffff:37b:7ca2
3.123.124.163 0:0:0:0:0:ffff:37b:7ca3
3.123.124.164 0:0:0:0:0:ffff:37b:7ca4
3.123.124.165 0:0:0:0:0:ffff:37b:7ca5
3.123.124.166 0:0:0:0:0:ffff:37b:7ca6
3.123.124.167 0:0:0:0:0:ffff:37b:7ca7
3.123.124.168 0:0:0:0:0:ffff:37b:7ca8
3.123.124.169 0:0:0:0:0:ffff:37b:7ca9
3.123.124.170 0:0:0:0:0:ffff:37b:7caa
3.123.124.171 0:0:0:0:0:ffff:37b:7cab
3.123.124.172 0:0:0:0:0:ffff:37b:7cac
3.123.124.173 0:0:0:0:0:ffff:37b:7cad
3.123.124.174 0:0:0:0:0:ffff:37b:7cae
3.123.124.175 0:0:0:0:0:ffff:37b:7caf
3.123.124.176 0:0:0:0:0:ffff:37b:7cb0
3.123.124.177 0:0:0:0:0:ffff:37b:7cb1
3.123.124.178 0:0:0:0:0:ffff:37b:7cb2
3.123.124.179 0:0:0:0:0:ffff:37b:7cb3
3.123.124.180 0:0:0:0:0:ffff:37b:7cb4


3.123.124.181 0:0:0:0:0:ffff:37b:7cb5
3.123.124.182 0:0:0:0:0:ffff:37b:7cb6
3.123.124.183 0:0:0:0:0:ffff:37b:7cb7
3.123.124.184 0:0:0:0:0:ffff:37b:7cb8
3.123.124.185 0:0:0:0:0:ffff:37b:7cb9
3.123.124.186 0:0:0:0:0:ffff:37b:7cba
3.123.124.187 0:0:0:0:0:ffff:37b:7cbb
3.123.124.188 0:0:0:0:0:ffff:37b:7cbc
3.123.124.189 0:0:0:0:0:ffff:37b:7cbd
3.123.124.190 0:0:0:0:0:ffff:37b:7cbe
3.123.124.191 0:0:0:0:0:ffff:37b:7cbf
3.123.124.192 0:0:0:0:0:ffff:37b:7cc0
3.123.124.193 0:0:0:0:0:ffff:37b:7cc1
3.123.124.194 0:0:0:0:0:ffff:37b:7cc2
3.123.124.195 0:0:0:0:0:ffff:37b:7cc3
3.123.124.196 0:0:0:0:0:ffff:37b:7cc4
3.123.124.197 0:0:0:0:0:ffff:37b:7cc5
3.123.124.198 0:0:0:0:0:ffff:37b:7cc6
3.123.124.199 0:0:0:0:0:ffff:37b:7cc7
3.123.124.200 0:0:0:0:0:ffff:37b:7cc8
3.123.124.201 0:0:0:0:0:ffff:37b:7cc9
3.123.124.202 0:0:0:0:0:ffff:37b:7cca
3.123.124.203 0:0:0:0:0:ffff:37b:7ccb
3.123.124.204 0:0:0:0:0:ffff:37b:7ccc
3.123.124.205 0:0:0:0:0:ffff:37b:7ccd
3.123.124.206 0:0:0:0:0:ffff:37b:7cce
3.123.124.207 0:0:0:0:0:ffff:37b:7ccf
3.123.124.208 0:0:0:0:0:ffff:37b:7cd0
3.123.124.209 0:0:0:0:0:ffff:37b:7cd1
3.123.124.210 0:0:0:0:0:ffff:37b:7cd2
3.123.124.211 0:0:0:0:0:ffff:37b:7cd3
3.123.124.212 0:0:0:0:0:ffff:37b:7cd4
3.123.124.213 0:0:0:0:0:ffff:37b:7cd5
3.123.124.214 0:0:0:0:0:ffff:37b:7cd6
3.123.124.215 0:0:0:0:0:ffff:37b:7cd7
3.123.124.216 0:0:0:0:0:ffff:37b:7cd8
3.123.124.217 0:0:0:0:0:ffff:37b:7cd9
3.123.124.218 0:0:0:0:0:ffff:37b:7cda
3.123.124.219 0:0:0:0:0:ffff:37b:7cdb
3.123.124.220 0:0:0:0:0:ffff:37b:7cdc
3.123.124.221 0:0:0:0:0:ffff:37b:7cdd
3.123.124.222 0:0:0:0:0:ffff:37b:7cde
3.123.124.223 0:0:0:0:0:ffff:37b:7cdf
3.123.124.224 0:0:0:0:0:ffff:37b:7ce0
3.123.124.225 0:0:0:0:0:ffff:37b:7ce1
3.123.124.226 0:0:0:0:0:ffff:37b:7ce2
3.123.124.227 0:0:0:0:0:ffff:37b:7ce3
3.123.124.228 0:0:0:0:0:ffff:37b:7ce4
3.123.124.229 0:0:0:0:0:ffff:37b:7ce5
3.123.124.230 0:0:0:0:0:ffff:37b:7ce6
3.123.124.231 0:0:0:0:0:ffff:37b:7ce7
3.123.124.232 0:0:0:0:0:ffff:37b:7ce8
3.123.124.233 0:0:0:0:0:ffff:37b:7ce9
3.123.124.234 0:0:0:0:0:ffff:37b:7cea
3.123.124.235 0:0:0:0:0:ffff:37b:7ceb
3.123.124.236 0:0:0:0:0:ffff:37b:7cec
3.123.124.237 0:0:0:0:0:ffff:37b:7ced
3.123.124.238 0:0:0:0:0:ffff:37b:7cee
3.123.124.239 0:0:0:0:0:ffff:37b:7cef
3.123.124.240 0:0:0:0:0:ffff:37b:7cf0
3.123.124.241 0:0:0:0:0:ffff:37b:7cf1
3.123.124.242 0:0:0:0:0:ffff:37b:7cf2
3.123.124.243 0:0:0:0:0:ffff:37b:7cf3
3.123.124.244 0:0:0:0:0:ffff:37b:7cf4
3.123.124.245 0:0:0:0:0:ffff:37b:7cf5
3.123.124.246 0:0:0:0:0:ffff:37b:7cf6
3.123.124.247 0:0:0:0:0:ffff:37b:7cf7
3.123.124.248 0:0:0:0:0:ffff:37b:7cf8
3.123.124.249 0:0:0:0:0:ffff:37b:7cf9
3.123.124.250 0:0:0:0:0:ffff:37b:7cfa
3.123.124.251 0:0:0:0:0:ffff:37b:7cfb
3.123.124.252 0:0:0:0:0:ffff:37b:7cfc
3.123.124.253 0:0:0:0:0:ffff:37b:7cfd
3.123.124.254 0:0:0:0:0:ffff:37b:7cfe
3.123.124.255 0:0:0:0:0:ffff:37b:7cff


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.