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
3.123.191.1 0:0:0:0:0:ffff:37b:bf01
3.123.191.2 0:0:0:0:0:ffff:37b:bf02
3.123.191.3 0:0:0:0:0:ffff:37b:bf03
3.123.191.4 0:0:0:0:0:ffff:37b:bf04
3.123.191.5 0:0:0:0:0:ffff:37b:bf05
3.123.191.6 0:0:0:0:0:ffff:37b:bf06
3.123.191.7 0:0:0:0:0:ffff:37b:bf07
3.123.191.8 0:0:0:0:0:ffff:37b:bf08
3.123.191.9 0:0:0:0:0:ffff:37b:bf09
3.123.191.10 0:0:0:0:0:ffff:37b:bf0a
3.123.191.11 0:0:0:0:0:ffff:37b:bf0b
3.123.191.12 0:0:0:0:0:ffff:37b:bf0c
3.123.191.13 0:0:0:0:0:ffff:37b:bf0d
3.123.191.14 0:0:0:0:0:ffff:37b:bf0e
3.123.191.15 0:0:0:0:0:ffff:37b:bf0f
3.123.191.16 0:0:0:0:0:ffff:37b:bf10
3.123.191.17 0:0:0:0:0:ffff:37b:bf11
3.123.191.18 0:0:0:0:0:ffff:37b:bf12
3.123.191.19 0:0:0:0:0:ffff:37b:bf13
3.123.191.20 0:0:0:0:0:ffff:37b:bf14
3.123.191.21 0:0:0:0:0:ffff:37b:bf15
3.123.191.22 0:0:0:0:0:ffff:37b:bf16
3.123.191.23 0:0:0:0:0:ffff:37b:bf17
3.123.191.24 0:0:0:0:0:ffff:37b:bf18
3.123.191.25 0:0:0:0:0:ffff:37b:bf19
3.123.191.26 0:0:0:0:0:ffff:37b:bf1a
3.123.191.27 0:0:0:0:0:ffff:37b:bf1b
3.123.191.28 0:0:0:0:0:ffff:37b:bf1c
3.123.191.29 0:0:0:0:0:ffff:37b:bf1d
3.123.191.30 0:0:0:0:0:ffff:37b:bf1e
3.123.191.31 0:0:0:0:0:ffff:37b:bf1f
3.123.191.32 0:0:0:0:0:ffff:37b:bf20
3.123.191.33 0:0:0:0:0:ffff:37b:bf21
3.123.191.34 0:0:0:0:0:ffff:37b:bf22
3.123.191.35 0:0:0:0:0:ffff:37b:bf23
3.123.191.36 0:0:0:0:0:ffff:37b:bf24
3.123.191.37 0:0:0:0:0:ffff:37b:bf25
3.123.191.38 0:0:0:0:0:ffff:37b:bf26
3.123.191.39 0:0:0:0:0:ffff:37b:bf27
3.123.191.40 0:0:0:0:0:ffff:37b:bf28
3.123.191.41 0:0:0:0:0:ffff:37b:bf29
3.123.191.42 0:0:0:0:0:ffff:37b:bf2a
3.123.191.43 0:0:0:0:0:ffff:37b:bf2b
3.123.191.44 0:0:0:0:0:ffff:37b:bf2c
3.123.191.45 0:0:0:0:0:ffff:37b:bf2d
3.123.191.46 0:0:0:0:0:ffff:37b:bf2e
3.123.191.47 0:0:0:0:0:ffff:37b:bf2f
3.123.191.48 0:0:0:0:0:ffff:37b:bf30
3.123.191.49 0:0:0:0:0:ffff:37b:bf31
3.123.191.50 0:0:0:0:0:ffff:37b:bf32
3.123.191.51 0:0:0:0:0:ffff:37b:bf33
3.123.191.52 0:0:0:0:0:ffff:37b:bf34
3.123.191.53 0:0:0:0:0:ffff:37b:bf35
3.123.191.54 0:0:0:0:0:ffff:37b:bf36
3.123.191.55 0:0:0:0:0:ffff:37b:bf37
3.123.191.56 0:0:0:0:0:ffff:37b:bf38
3.123.191.57 0:0:0:0:0:ffff:37b:bf39
3.123.191.58 0:0:0:0:0:ffff:37b:bf3a
3.123.191.59 0:0:0:0:0:ffff:37b:bf3b
3.123.191.60 0:0:0:0:0:ffff:37b:bf3c


3.123.191.61 0:0:0:0:0:ffff:37b:bf3d
3.123.191.62 0:0:0:0:0:ffff:37b:bf3e
3.123.191.63 0:0:0:0:0:ffff:37b:bf3f
3.123.191.64 0:0:0:0:0:ffff:37b:bf40
3.123.191.65 0:0:0:0:0:ffff:37b:bf41
3.123.191.66 0:0:0:0:0:ffff:37b:bf42
3.123.191.67 0:0:0:0:0:ffff:37b:bf43
3.123.191.68 0:0:0:0:0:ffff:37b:bf44
3.123.191.69 0:0:0:0:0:ffff:37b:bf45
3.123.191.70 0:0:0:0:0:ffff:37b:bf46
3.123.191.71 0:0:0:0:0:ffff:37b:bf47
3.123.191.72 0:0:0:0:0:ffff:37b:bf48
3.123.191.73 0:0:0:0:0:ffff:37b:bf49
3.123.191.74 0:0:0:0:0:ffff:37b:bf4a
3.123.191.75 0:0:0:0:0:ffff:37b:bf4b
3.123.191.76 0:0:0:0:0:ffff:37b:bf4c
3.123.191.77 0:0:0:0:0:ffff:37b:bf4d
3.123.191.78 0:0:0:0:0:ffff:37b:bf4e
3.123.191.79 0:0:0:0:0:ffff:37b:bf4f
3.123.191.80 0:0:0:0:0:ffff:37b:bf50
3.123.191.81 0:0:0:0:0:ffff:37b:bf51
3.123.191.82 0:0:0:0:0:ffff:37b:bf52
3.123.191.83 0:0:0:0:0:ffff:37b:bf53
3.123.191.84 0:0:0:0:0:ffff:37b:bf54
3.123.191.85 0:0:0:0:0:ffff:37b:bf55
3.123.191.86 0:0:0:0:0:ffff:37b:bf56
3.123.191.87 0:0:0:0:0:ffff:37b:bf57
3.123.191.88 0:0:0:0:0:ffff:37b:bf58
3.123.191.89 0:0:0:0:0:ffff:37b:bf59
3.123.191.90 0:0:0:0:0:ffff:37b:bf5a
3.123.191.91 0:0:0:0:0:ffff:37b:bf5b
3.123.191.92 0:0:0:0:0:ffff:37b:bf5c
3.123.191.93 0:0:0:0:0:ffff:37b:bf5d
3.123.191.94 0:0:0:0:0:ffff:37b:bf5e
3.123.191.95 0:0:0:0:0:ffff:37b:bf5f
3.123.191.96 0:0:0:0:0:ffff:37b:bf60
3.123.191.97 0:0:0:0:0:ffff:37b:bf61
3.123.191.98 0:0:0:0:0:ffff:37b:bf62
3.123.191.99 0:0:0:0:0:ffff:37b:bf63
3.123.191.100 0:0:0:0:0:ffff:37b:bf64
3.123.191.101 0:0:0:0:0:ffff:37b:bf65
3.123.191.102 0:0:0:0:0:ffff:37b:bf66
3.123.191.103 0:0:0:0:0:ffff:37b:bf67
3.123.191.104 0:0:0:0:0:ffff:37b:bf68
3.123.191.105 0:0:0:0:0:ffff:37b:bf69
3.123.191.106 0:0:0:0:0:ffff:37b:bf6a
3.123.191.107 0:0:0:0:0:ffff:37b:bf6b
3.123.191.108 0:0:0:0:0:ffff:37b:bf6c
3.123.191.109 0:0:0:0:0:ffff:37b:bf6d
3.123.191.110 0:0:0:0:0:ffff:37b:bf6e
3.123.191.111 0:0:0:0:0:ffff:37b:bf6f
3.123.191.112 0:0:0:0:0:ffff:37b:bf70
3.123.191.113 0:0:0:0:0:ffff:37b:bf71
3.123.191.114 0:0:0:0:0:ffff:37b:bf72
3.123.191.115 0:0:0:0:0:ffff:37b:bf73
3.123.191.116 0:0:0:0:0:ffff:37b:bf74
3.123.191.117 0:0:0:0:0:ffff:37b:bf75
3.123.191.118 0:0:0:0:0:ffff:37b:bf76
3.123.191.119 0:0:0:0:0:ffff:37b:bf77
3.123.191.120 0:0:0:0:0:ffff:37b:bf78


3.123.191.121 0:0:0:0:0:ffff:37b:bf79
3.123.191.122 0:0:0:0:0:ffff:37b:bf7a
3.123.191.123 0:0:0:0:0:ffff:37b:bf7b
3.123.191.124 0:0:0:0:0:ffff:37b:bf7c
3.123.191.125 0:0:0:0:0:ffff:37b:bf7d
3.123.191.126 0:0:0:0:0:ffff:37b:bf7e
3.123.191.127 0:0:0:0:0:ffff:37b:bf7f
3.123.191.128 0:0:0:0:0:ffff:37b:bf80
3.123.191.129 0:0:0:0:0:ffff:37b:bf81
3.123.191.130 0:0:0:0:0:ffff:37b:bf82
3.123.191.131 0:0:0:0:0:ffff:37b:bf83
3.123.191.132 0:0:0:0:0:ffff:37b:bf84
3.123.191.133 0:0:0:0:0:ffff:37b:bf85
3.123.191.134 0:0:0:0:0:ffff:37b:bf86
3.123.191.135 0:0:0:0:0:ffff:37b:bf87
3.123.191.136 0:0:0:0:0:ffff:37b:bf88
3.123.191.137 0:0:0:0:0:ffff:37b:bf89
3.123.191.138 0:0:0:0:0:ffff:37b:bf8a
3.123.191.139 0:0:0:0:0:ffff:37b:bf8b
3.123.191.140 0:0:0:0:0:ffff:37b:bf8c
3.123.191.141 0:0:0:0:0:ffff:37b:bf8d
3.123.191.142 0:0:0:0:0:ffff:37b:bf8e
3.123.191.143 0:0:0:0:0:ffff:37b:bf8f
3.123.191.144 0:0:0:0:0:ffff:37b:bf90
3.123.191.145 0:0:0:0:0:ffff:37b:bf91
3.123.191.146 0:0:0:0:0:ffff:37b:bf92
3.123.191.147 0:0:0:0:0:ffff:37b:bf93
3.123.191.148 0:0:0:0:0:ffff:37b:bf94
3.123.191.149 0:0:0:0:0:ffff:37b:bf95
3.123.191.150 0:0:0:0:0:ffff:37b:bf96
3.123.191.151 0:0:0:0:0:ffff:37b:bf97
3.123.191.152 0:0:0:0:0:ffff:37b:bf98
3.123.191.153 0:0:0:0:0:ffff:37b:bf99
3.123.191.154 0:0:0:0:0:ffff:37b:bf9a
3.123.191.155 0:0:0:0:0:ffff:37b:bf9b
3.123.191.156 0:0:0:0:0:ffff:37b:bf9c
3.123.191.157 0:0:0:0:0:ffff:37b:bf9d
3.123.191.158 0:0:0:0:0:ffff:37b:bf9e
3.123.191.159 0:0:0:0:0:ffff:37b:bf9f
3.123.191.160 0:0:0:0:0:ffff:37b:bfa0
3.123.191.161 0:0:0:0:0:ffff:37b:bfa1
3.123.191.162 0:0:0:0:0:ffff:37b:bfa2
3.123.191.163 0:0:0:0:0:ffff:37b:bfa3
3.123.191.164 0:0:0:0:0:ffff:37b:bfa4
3.123.191.165 0:0:0:0:0:ffff:37b:bfa5
3.123.191.166 0:0:0:0:0:ffff:37b:bfa6
3.123.191.167 0:0:0:0:0:ffff:37b:bfa7
3.123.191.168 0:0:0:0:0:ffff:37b:bfa8
3.123.191.169 0:0:0:0:0:ffff:37b:bfa9
3.123.191.170 0:0:0:0:0:ffff:37b:bfaa
3.123.191.171 0:0:0:0:0:ffff:37b:bfab
3.123.191.172 0:0:0:0:0:ffff:37b:bfac
3.123.191.173 0:0:0:0:0:ffff:37b:bfad
3.123.191.174 0:0:0:0:0:ffff:37b:bfae
3.123.191.175 0:0:0:0:0:ffff:37b:bfaf
3.123.191.176 0:0:0:0:0:ffff:37b:bfb0
3.123.191.177 0:0:0:0:0:ffff:37b:bfb1
3.123.191.178 0:0:0:0:0:ffff:37b:bfb2
3.123.191.179 0:0:0:0:0:ffff:37b:bfb3
3.123.191.180 0:0:0:0:0:ffff:37b:bfb4


3.123.191.181 0:0:0:0:0:ffff:37b:bfb5
3.123.191.182 0:0:0:0:0:ffff:37b:bfb6
3.123.191.183 0:0:0:0:0:ffff:37b:bfb7
3.123.191.184 0:0:0:0:0:ffff:37b:bfb8
3.123.191.185 0:0:0:0:0:ffff:37b:bfb9
3.123.191.186 0:0:0:0:0:ffff:37b:bfba
3.123.191.187 0:0:0:0:0:ffff:37b:bfbb
3.123.191.188 0:0:0:0:0:ffff:37b:bfbc
3.123.191.189 0:0:0:0:0:ffff:37b:bfbd
3.123.191.190 0:0:0:0:0:ffff:37b:bfbe
3.123.191.191 0:0:0:0:0:ffff:37b:bfbf
3.123.191.192 0:0:0:0:0:ffff:37b:bfc0
3.123.191.193 0:0:0:0:0:ffff:37b:bfc1
3.123.191.194 0:0:0:0:0:ffff:37b:bfc2
3.123.191.195 0:0:0:0:0:ffff:37b:bfc3
3.123.191.196 0:0:0:0:0:ffff:37b:bfc4
3.123.191.197 0:0:0:0:0:ffff:37b:bfc5
3.123.191.198 0:0:0:0:0:ffff:37b:bfc6
3.123.191.199 0:0:0:0:0:ffff:37b:bfc7
3.123.191.200 0:0:0:0:0:ffff:37b:bfc8
3.123.191.201 0:0:0:0:0:ffff:37b:bfc9
3.123.191.202 0:0:0:0:0:ffff:37b:bfca
3.123.191.203 0:0:0:0:0:ffff:37b:bfcb
3.123.191.204 0:0:0:0:0:ffff:37b:bfcc
3.123.191.205 0:0:0:0:0:ffff:37b:bfcd
3.123.191.206 0:0:0:0:0:ffff:37b:bfce
3.123.191.207 0:0:0:0:0:ffff:37b:bfcf
3.123.191.208 0:0:0:0:0:ffff:37b:bfd0
3.123.191.209 0:0:0:0:0:ffff:37b:bfd1
3.123.191.210 0:0:0:0:0:ffff:37b:bfd2
3.123.191.211 0:0:0:0:0:ffff:37b:bfd3
3.123.191.212 0:0:0:0:0:ffff:37b:bfd4
3.123.191.213 0:0:0:0:0:ffff:37b:bfd5
3.123.191.214 0:0:0:0:0:ffff:37b:bfd6
3.123.191.215 0:0:0:0:0:ffff:37b:bfd7
3.123.191.216 0:0:0:0:0:ffff:37b:bfd8
3.123.191.217 0:0:0:0:0:ffff:37b:bfd9
3.123.191.218 0:0:0:0:0:ffff:37b:bfda
3.123.191.219 0:0:0:0:0:ffff:37b:bfdb
3.123.191.220 0:0:0:0:0:ffff:37b:bfdc
3.123.191.221 0:0:0:0:0:ffff:37b:bfdd
3.123.191.222 0:0:0:0:0:ffff:37b:bfde
3.123.191.223 0:0:0:0:0:ffff:37b:bfdf
3.123.191.224 0:0:0:0:0:ffff:37b:bfe0
3.123.191.225 0:0:0:0:0:ffff:37b:bfe1
3.123.191.226 0:0:0:0:0:ffff:37b:bfe2
3.123.191.227 0:0:0:0:0:ffff:37b:bfe3
3.123.191.228 0:0:0:0:0:ffff:37b:bfe4
3.123.191.229 0:0:0:0:0:ffff:37b:bfe5
3.123.191.230 0:0:0:0:0:ffff:37b:bfe6
3.123.191.231 0:0:0:0:0:ffff:37b:bfe7
3.123.191.232 0:0:0:0:0:ffff:37b:bfe8
3.123.191.233 0:0:0:0:0:ffff:37b:bfe9
3.123.191.234 0:0:0:0:0:ffff:37b:bfea
3.123.191.235 0:0:0:0:0:ffff:37b:bfeb
3.123.191.236 0:0:0:0:0:ffff:37b:bfec
3.123.191.237 0:0:0:0:0:ffff:37b:bfed
3.123.191.238 0:0:0:0:0:ffff:37b:bfee
3.123.191.239 0:0:0:0:0:ffff:37b:bfef
3.123.191.240 0:0:0:0:0:ffff:37b:bff0
3.123.191.241 0:0:0:0:0:ffff:37b:bff1
3.123.191.242 0:0:0:0:0:ffff:37b:bff2
3.123.191.243 0:0:0:0:0:ffff:37b:bff3
3.123.191.244 0:0:0:0:0:ffff:37b:bff4
3.123.191.245 0:0:0:0:0:ffff:37b:bff5
3.123.191.246 0:0:0:0:0:ffff:37b:bff6
3.123.191.247 0:0:0:0:0:ffff:37b:bff7
3.123.191.248 0:0:0:0:0:ffff:37b:bff8
3.123.191.249 0:0:0:0:0:ffff:37b:bff9
3.123.191.250 0:0:0:0:0:ffff:37b:bffa
3.123.191.251 0:0:0:0:0:ffff:37b:bffb
3.123.191.252 0:0:0:0:0:ffff:37b:bffc
3.123.191.253 0:0:0:0:0:ffff:37b:bffd
3.123.191.254 0:0:0:0:0:ffff:37b:bffe
3.123.191.255 0:0:0:0:0:ffff:37b:bfff


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.