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
199.138.171.1 0:0:0:0:0:ffff:c78a:ab01
199.138.171.2 0:0:0:0:0:ffff:c78a:ab02
199.138.171.3 0:0:0:0:0:ffff:c78a:ab03
199.138.171.4 0:0:0:0:0:ffff:c78a:ab04
199.138.171.5 0:0:0:0:0:ffff:c78a:ab05
199.138.171.6 0:0:0:0:0:ffff:c78a:ab06
199.138.171.7 0:0:0:0:0:ffff:c78a:ab07
199.138.171.8 0:0:0:0:0:ffff:c78a:ab08
199.138.171.9 0:0:0:0:0:ffff:c78a:ab09
199.138.171.10 0:0:0:0:0:ffff:c78a:ab0a
199.138.171.11 0:0:0:0:0:ffff:c78a:ab0b
199.138.171.12 0:0:0:0:0:ffff:c78a:ab0c
199.138.171.13 0:0:0:0:0:ffff:c78a:ab0d
199.138.171.14 0:0:0:0:0:ffff:c78a:ab0e
199.138.171.15 0:0:0:0:0:ffff:c78a:ab0f
199.138.171.16 0:0:0:0:0:ffff:c78a:ab10
199.138.171.17 0:0:0:0:0:ffff:c78a:ab11
199.138.171.18 0:0:0:0:0:ffff:c78a:ab12
199.138.171.19 0:0:0:0:0:ffff:c78a:ab13
199.138.171.20 0:0:0:0:0:ffff:c78a:ab14
199.138.171.21 0:0:0:0:0:ffff:c78a:ab15
199.138.171.22 0:0:0:0:0:ffff:c78a:ab16
199.138.171.23 0:0:0:0:0:ffff:c78a:ab17
199.138.171.24 0:0:0:0:0:ffff:c78a:ab18
199.138.171.25 0:0:0:0:0:ffff:c78a:ab19
199.138.171.26 0:0:0:0:0:ffff:c78a:ab1a
199.138.171.27 0:0:0:0:0:ffff:c78a:ab1b
199.138.171.28 0:0:0:0:0:ffff:c78a:ab1c
199.138.171.29 0:0:0:0:0:ffff:c78a:ab1d
199.138.171.30 0:0:0:0:0:ffff:c78a:ab1e
199.138.171.31 0:0:0:0:0:ffff:c78a:ab1f
199.138.171.32 0:0:0:0:0:ffff:c78a:ab20
199.138.171.33 0:0:0:0:0:ffff:c78a:ab21
199.138.171.34 0:0:0:0:0:ffff:c78a:ab22
199.138.171.35 0:0:0:0:0:ffff:c78a:ab23
199.138.171.36 0:0:0:0:0:ffff:c78a:ab24
199.138.171.37 0:0:0:0:0:ffff:c78a:ab25
199.138.171.38 0:0:0:0:0:ffff:c78a:ab26
199.138.171.39 0:0:0:0:0:ffff:c78a:ab27
199.138.171.40 0:0:0:0:0:ffff:c78a:ab28
199.138.171.41 0:0:0:0:0:ffff:c78a:ab29
199.138.171.42 0:0:0:0:0:ffff:c78a:ab2a
199.138.171.43 0:0:0:0:0:ffff:c78a:ab2b
199.138.171.44 0:0:0:0:0:ffff:c78a:ab2c
199.138.171.45 0:0:0:0:0:ffff:c78a:ab2d
199.138.171.46 0:0:0:0:0:ffff:c78a:ab2e
199.138.171.47 0:0:0:0:0:ffff:c78a:ab2f
199.138.171.48 0:0:0:0:0:ffff:c78a:ab30
199.138.171.49 0:0:0:0:0:ffff:c78a:ab31
199.138.171.50 0:0:0:0:0:ffff:c78a:ab32
199.138.171.51 0:0:0:0:0:ffff:c78a:ab33
199.138.171.52 0:0:0:0:0:ffff:c78a:ab34
199.138.171.53 0:0:0:0:0:ffff:c78a:ab35
199.138.171.54 0:0:0:0:0:ffff:c78a:ab36
199.138.171.55 0:0:0:0:0:ffff:c78a:ab37
199.138.171.56 0:0:0:0:0:ffff:c78a:ab38
199.138.171.57 0:0:0:0:0:ffff:c78a:ab39
199.138.171.58 0:0:0:0:0:ffff:c78a:ab3a
199.138.171.59 0:0:0:0:0:ffff:c78a:ab3b
199.138.171.60 0:0:0:0:0:ffff:c78a:ab3c


199.138.171.61 0:0:0:0:0:ffff:c78a:ab3d
199.138.171.62 0:0:0:0:0:ffff:c78a:ab3e
199.138.171.63 0:0:0:0:0:ffff:c78a:ab3f
199.138.171.64 0:0:0:0:0:ffff:c78a:ab40
199.138.171.65 0:0:0:0:0:ffff:c78a:ab41
199.138.171.66 0:0:0:0:0:ffff:c78a:ab42
199.138.171.67 0:0:0:0:0:ffff:c78a:ab43
199.138.171.68 0:0:0:0:0:ffff:c78a:ab44
199.138.171.69 0:0:0:0:0:ffff:c78a:ab45
199.138.171.70 0:0:0:0:0:ffff:c78a:ab46
199.138.171.71 0:0:0:0:0:ffff:c78a:ab47
199.138.171.72 0:0:0:0:0:ffff:c78a:ab48
199.138.171.73 0:0:0:0:0:ffff:c78a:ab49
199.138.171.74 0:0:0:0:0:ffff:c78a:ab4a
199.138.171.75 0:0:0:0:0:ffff:c78a:ab4b
199.138.171.76 0:0:0:0:0:ffff:c78a:ab4c
199.138.171.77 0:0:0:0:0:ffff:c78a:ab4d
199.138.171.78 0:0:0:0:0:ffff:c78a:ab4e
199.138.171.79 0:0:0:0:0:ffff:c78a:ab4f
199.138.171.80 0:0:0:0:0:ffff:c78a:ab50
199.138.171.81 0:0:0:0:0:ffff:c78a:ab51
199.138.171.82 0:0:0:0:0:ffff:c78a:ab52
199.138.171.83 0:0:0:0:0:ffff:c78a:ab53
199.138.171.84 0:0:0:0:0:ffff:c78a:ab54
199.138.171.85 0:0:0:0:0:ffff:c78a:ab55
199.138.171.86 0:0:0:0:0:ffff:c78a:ab56
199.138.171.87 0:0:0:0:0:ffff:c78a:ab57
199.138.171.88 0:0:0:0:0:ffff:c78a:ab58
199.138.171.89 0:0:0:0:0:ffff:c78a:ab59
199.138.171.90 0:0:0:0:0:ffff:c78a:ab5a
199.138.171.91 0:0:0:0:0:ffff:c78a:ab5b
199.138.171.92 0:0:0:0:0:ffff:c78a:ab5c
199.138.171.93 0:0:0:0:0:ffff:c78a:ab5d
199.138.171.94 0:0:0:0:0:ffff:c78a:ab5e
199.138.171.95 0:0:0:0:0:ffff:c78a:ab5f
199.138.171.96 0:0:0:0:0:ffff:c78a:ab60
199.138.171.97 0:0:0:0:0:ffff:c78a:ab61
199.138.171.98 0:0:0:0:0:ffff:c78a:ab62
199.138.171.99 0:0:0:0:0:ffff:c78a:ab63
199.138.171.100 0:0:0:0:0:ffff:c78a:ab64
199.138.171.101 0:0:0:0:0:ffff:c78a:ab65
199.138.171.102 0:0:0:0:0:ffff:c78a:ab66
199.138.171.103 0:0:0:0:0:ffff:c78a:ab67
199.138.171.104 0:0:0:0:0:ffff:c78a:ab68
199.138.171.105 0:0:0:0:0:ffff:c78a:ab69
199.138.171.106 0:0:0:0:0:ffff:c78a:ab6a
199.138.171.107 0:0:0:0:0:ffff:c78a:ab6b
199.138.171.108 0:0:0:0:0:ffff:c78a:ab6c
199.138.171.109 0:0:0:0:0:ffff:c78a:ab6d
199.138.171.110 0:0:0:0:0:ffff:c78a:ab6e
199.138.171.111 0:0:0:0:0:ffff:c78a:ab6f
199.138.171.112 0:0:0:0:0:ffff:c78a:ab70
199.138.171.113 0:0:0:0:0:ffff:c78a:ab71
199.138.171.114 0:0:0:0:0:ffff:c78a:ab72
199.138.171.115 0:0:0:0:0:ffff:c78a:ab73
199.138.171.116 0:0:0:0:0:ffff:c78a:ab74
199.138.171.117 0:0:0:0:0:ffff:c78a:ab75
199.138.171.118 0:0:0:0:0:ffff:c78a:ab76
199.138.171.119 0:0:0:0:0:ffff:c78a:ab77
199.138.171.120 0:0:0:0:0:ffff:c78a:ab78


199.138.171.121 0:0:0:0:0:ffff:c78a:ab79
199.138.171.122 0:0:0:0:0:ffff:c78a:ab7a
199.138.171.123 0:0:0:0:0:ffff:c78a:ab7b
199.138.171.124 0:0:0:0:0:ffff:c78a:ab7c
199.138.171.125 0:0:0:0:0:ffff:c78a:ab7d
199.138.171.126 0:0:0:0:0:ffff:c78a:ab7e
199.138.171.127 0:0:0:0:0:ffff:c78a:ab7f
199.138.171.128 0:0:0:0:0:ffff:c78a:ab80
199.138.171.129 0:0:0:0:0:ffff:c78a:ab81
199.138.171.130 0:0:0:0:0:ffff:c78a:ab82
199.138.171.131 0:0:0:0:0:ffff:c78a:ab83
199.138.171.132 0:0:0:0:0:ffff:c78a:ab84
199.138.171.133 0:0:0:0:0:ffff:c78a:ab85
199.138.171.134 0:0:0:0:0:ffff:c78a:ab86
199.138.171.135 0:0:0:0:0:ffff:c78a:ab87
199.138.171.136 0:0:0:0:0:ffff:c78a:ab88
199.138.171.137 0:0:0:0:0:ffff:c78a:ab89
199.138.171.138 0:0:0:0:0:ffff:c78a:ab8a
199.138.171.139 0:0:0:0:0:ffff:c78a:ab8b
199.138.171.140 0:0:0:0:0:ffff:c78a:ab8c
199.138.171.141 0:0:0:0:0:ffff:c78a:ab8d
199.138.171.142 0:0:0:0:0:ffff:c78a:ab8e
199.138.171.143 0:0:0:0:0:ffff:c78a:ab8f
199.138.171.144 0:0:0:0:0:ffff:c78a:ab90
199.138.171.145 0:0:0:0:0:ffff:c78a:ab91
199.138.171.146 0:0:0:0:0:ffff:c78a:ab92
199.138.171.147 0:0:0:0:0:ffff:c78a:ab93
199.138.171.148 0:0:0:0:0:ffff:c78a:ab94
199.138.171.149 0:0:0:0:0:ffff:c78a:ab95
199.138.171.150 0:0:0:0:0:ffff:c78a:ab96
199.138.171.151 0:0:0:0:0:ffff:c78a:ab97
199.138.171.152 0:0:0:0:0:ffff:c78a:ab98
199.138.171.153 0:0:0:0:0:ffff:c78a:ab99
199.138.171.154 0:0:0:0:0:ffff:c78a:ab9a
199.138.171.155 0:0:0:0:0:ffff:c78a:ab9b
199.138.171.156 0:0:0:0:0:ffff:c78a:ab9c
199.138.171.157 0:0:0:0:0:ffff:c78a:ab9d
199.138.171.158 0:0:0:0:0:ffff:c78a:ab9e
199.138.171.159 0:0:0:0:0:ffff:c78a:ab9f
199.138.171.160 0:0:0:0:0:ffff:c78a:aba0
199.138.171.161 0:0:0:0:0:ffff:c78a:aba1
199.138.171.162 0:0:0:0:0:ffff:c78a:aba2
199.138.171.163 0:0:0:0:0:ffff:c78a:aba3
199.138.171.164 0:0:0:0:0:ffff:c78a:aba4
199.138.171.165 0:0:0:0:0:ffff:c78a:aba5
199.138.171.166 0:0:0:0:0:ffff:c78a:aba6
199.138.171.167 0:0:0:0:0:ffff:c78a:aba7
199.138.171.168 0:0:0:0:0:ffff:c78a:aba8
199.138.171.169 0:0:0:0:0:ffff:c78a:aba9
199.138.171.170 0:0:0:0:0:ffff:c78a:abaa
199.138.171.171 0:0:0:0:0:ffff:c78a:abab
199.138.171.172 0:0:0:0:0:ffff:c78a:abac
199.138.171.173 0:0:0:0:0:ffff:c78a:abad
199.138.171.174 0:0:0:0:0:ffff:c78a:abae
199.138.171.175 0:0:0:0:0:ffff:c78a:abaf
199.138.171.176 0:0:0:0:0:ffff:c78a:abb0
199.138.171.177 0:0:0:0:0:ffff:c78a:abb1
199.138.171.178 0:0:0:0:0:ffff:c78a:abb2
199.138.171.179 0:0:0:0:0:ffff:c78a:abb3
199.138.171.180 0:0:0:0:0:ffff:c78a:abb4


199.138.171.181 0:0:0:0:0:ffff:c78a:abb5
199.138.171.182 0:0:0:0:0:ffff:c78a:abb6
199.138.171.183 0:0:0:0:0:ffff:c78a:abb7
199.138.171.184 0:0:0:0:0:ffff:c78a:abb8
199.138.171.185 0:0:0:0:0:ffff:c78a:abb9
199.138.171.186 0:0:0:0:0:ffff:c78a:abba
199.138.171.187 0:0:0:0:0:ffff:c78a:abbb
199.138.171.188 0:0:0:0:0:ffff:c78a:abbc
199.138.171.189 0:0:0:0:0:ffff:c78a:abbd
199.138.171.190 0:0:0:0:0:ffff:c78a:abbe
199.138.171.191 0:0:0:0:0:ffff:c78a:abbf
199.138.171.192 0:0:0:0:0:ffff:c78a:abc0
199.138.171.193 0:0:0:0:0:ffff:c78a:abc1
199.138.171.194 0:0:0:0:0:ffff:c78a:abc2
199.138.171.195 0:0:0:0:0:ffff:c78a:abc3
199.138.171.196 0:0:0:0:0:ffff:c78a:abc4
199.138.171.197 0:0:0:0:0:ffff:c78a:abc5
199.138.171.198 0:0:0:0:0:ffff:c78a:abc6
199.138.171.199 0:0:0:0:0:ffff:c78a:abc7
199.138.171.200 0:0:0:0:0:ffff:c78a:abc8
199.138.171.201 0:0:0:0:0:ffff:c78a:abc9
199.138.171.202 0:0:0:0:0:ffff:c78a:abca
199.138.171.203 0:0:0:0:0:ffff:c78a:abcb
199.138.171.204 0:0:0:0:0:ffff:c78a:abcc
199.138.171.205 0:0:0:0:0:ffff:c78a:abcd
199.138.171.206 0:0:0:0:0:ffff:c78a:abce
199.138.171.207 0:0:0:0:0:ffff:c78a:abcf
199.138.171.208 0:0:0:0:0:ffff:c78a:abd0
199.138.171.209 0:0:0:0:0:ffff:c78a:abd1
199.138.171.210 0:0:0:0:0:ffff:c78a:abd2
199.138.171.211 0:0:0:0:0:ffff:c78a:abd3
199.138.171.212 0:0:0:0:0:ffff:c78a:abd4
199.138.171.213 0:0:0:0:0:ffff:c78a:abd5
199.138.171.214 0:0:0:0:0:ffff:c78a:abd6
199.138.171.215 0:0:0:0:0:ffff:c78a:abd7
199.138.171.216 0:0:0:0:0:ffff:c78a:abd8
199.138.171.217 0:0:0:0:0:ffff:c78a:abd9
199.138.171.218 0:0:0:0:0:ffff:c78a:abda
199.138.171.219 0:0:0:0:0:ffff:c78a:abdb
199.138.171.220 0:0:0:0:0:ffff:c78a:abdc
199.138.171.221 0:0:0:0:0:ffff:c78a:abdd
199.138.171.222 0:0:0:0:0:ffff:c78a:abde
199.138.171.223 0:0:0:0:0:ffff:c78a:abdf
199.138.171.224 0:0:0:0:0:ffff:c78a:abe0
199.138.171.225 0:0:0:0:0:ffff:c78a:abe1
199.138.171.226 0:0:0:0:0:ffff:c78a:abe2
199.138.171.227 0:0:0:0:0:ffff:c78a:abe3
199.138.171.228 0:0:0:0:0:ffff:c78a:abe4
199.138.171.229 0:0:0:0:0:ffff:c78a:abe5
199.138.171.230 0:0:0:0:0:ffff:c78a:abe6
199.138.171.231 0:0:0:0:0:ffff:c78a:abe7
199.138.171.232 0:0:0:0:0:ffff:c78a:abe8
199.138.171.233 0:0:0:0:0:ffff:c78a:abe9
199.138.171.234 0:0:0:0:0:ffff:c78a:abea
199.138.171.235 0:0:0:0:0:ffff:c78a:abeb
199.138.171.236 0:0:0:0:0:ffff:c78a:abec
199.138.171.237 0:0:0:0:0:ffff:c78a:abed
199.138.171.238 0:0:0:0:0:ffff:c78a:abee
199.138.171.239 0:0:0:0:0:ffff:c78a:abef
199.138.171.240 0:0:0:0:0:ffff:c78a:abf0
199.138.171.241 0:0:0:0:0:ffff:c78a:abf1
199.138.171.242 0:0:0:0:0:ffff:c78a:abf2
199.138.171.243 0:0:0:0:0:ffff:c78a:abf3
199.138.171.244 0:0:0:0:0:ffff:c78a:abf4
199.138.171.245 0:0:0:0:0:ffff:c78a:abf5
199.138.171.246 0:0:0:0:0:ffff:c78a:abf6
199.138.171.247 0:0:0:0:0:ffff:c78a:abf7
199.138.171.248 0:0:0:0:0:ffff:c78a:abf8
199.138.171.249 0:0:0:0:0:ffff:c78a:abf9
199.138.171.250 0:0:0:0:0:ffff:c78a:abfa
199.138.171.251 0:0:0:0:0:ffff:c78a:abfb
199.138.171.252 0:0:0:0:0:ffff:c78a:abfc
199.138.171.253 0:0:0:0:0:ffff:c78a:abfd
199.138.171.254 0:0:0:0:0:ffff:c78a:abfe
199.138.171.255 0:0:0:0:0:ffff:c78a:abff


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.