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
199.138.239.1 0:0:0:0:0:ffff:c78a:ef01
199.138.239.2 0:0:0:0:0:ffff:c78a:ef02
199.138.239.3 0:0:0:0:0:ffff:c78a:ef03
199.138.239.4 0:0:0:0:0:ffff:c78a:ef04
199.138.239.5 0:0:0:0:0:ffff:c78a:ef05
199.138.239.6 0:0:0:0:0:ffff:c78a:ef06
199.138.239.7 0:0:0:0:0:ffff:c78a:ef07
199.138.239.8 0:0:0:0:0:ffff:c78a:ef08
199.138.239.9 0:0:0:0:0:ffff:c78a:ef09
199.138.239.10 0:0:0:0:0:ffff:c78a:ef0a
199.138.239.11 0:0:0:0:0:ffff:c78a:ef0b
199.138.239.12 0:0:0:0:0:ffff:c78a:ef0c
199.138.239.13 0:0:0:0:0:ffff:c78a:ef0d
199.138.239.14 0:0:0:0:0:ffff:c78a:ef0e
199.138.239.15 0:0:0:0:0:ffff:c78a:ef0f
199.138.239.16 0:0:0:0:0:ffff:c78a:ef10
199.138.239.17 0:0:0:0:0:ffff:c78a:ef11
199.138.239.18 0:0:0:0:0:ffff:c78a:ef12
199.138.239.19 0:0:0:0:0:ffff:c78a:ef13
199.138.239.20 0:0:0:0:0:ffff:c78a:ef14
199.138.239.21 0:0:0:0:0:ffff:c78a:ef15
199.138.239.22 0:0:0:0:0:ffff:c78a:ef16
199.138.239.23 0:0:0:0:0:ffff:c78a:ef17
199.138.239.24 0:0:0:0:0:ffff:c78a:ef18
199.138.239.25 0:0:0:0:0:ffff:c78a:ef19
199.138.239.26 0:0:0:0:0:ffff:c78a:ef1a
199.138.239.27 0:0:0:0:0:ffff:c78a:ef1b
199.138.239.28 0:0:0:0:0:ffff:c78a:ef1c
199.138.239.29 0:0:0:0:0:ffff:c78a:ef1d
199.138.239.30 0:0:0:0:0:ffff:c78a:ef1e
199.138.239.31 0:0:0:0:0:ffff:c78a:ef1f
199.138.239.32 0:0:0:0:0:ffff:c78a:ef20
199.138.239.33 0:0:0:0:0:ffff:c78a:ef21
199.138.239.34 0:0:0:0:0:ffff:c78a:ef22
199.138.239.35 0:0:0:0:0:ffff:c78a:ef23
199.138.239.36 0:0:0:0:0:ffff:c78a:ef24
199.138.239.37 0:0:0:0:0:ffff:c78a:ef25
199.138.239.38 0:0:0:0:0:ffff:c78a:ef26
199.138.239.39 0:0:0:0:0:ffff:c78a:ef27
199.138.239.40 0:0:0:0:0:ffff:c78a:ef28
199.138.239.41 0:0:0:0:0:ffff:c78a:ef29
199.138.239.42 0:0:0:0:0:ffff:c78a:ef2a
199.138.239.43 0:0:0:0:0:ffff:c78a:ef2b
199.138.239.44 0:0:0:0:0:ffff:c78a:ef2c
199.138.239.45 0:0:0:0:0:ffff:c78a:ef2d
199.138.239.46 0:0:0:0:0:ffff:c78a:ef2e
199.138.239.47 0:0:0:0:0:ffff:c78a:ef2f
199.138.239.48 0:0:0:0:0:ffff:c78a:ef30
199.138.239.49 0:0:0:0:0:ffff:c78a:ef31
199.138.239.50 0:0:0:0:0:ffff:c78a:ef32
199.138.239.51 0:0:0:0:0:ffff:c78a:ef33
199.138.239.52 0:0:0:0:0:ffff:c78a:ef34
199.138.239.53 0:0:0:0:0:ffff:c78a:ef35
199.138.239.54 0:0:0:0:0:ffff:c78a:ef36
199.138.239.55 0:0:0:0:0:ffff:c78a:ef37
199.138.239.56 0:0:0:0:0:ffff:c78a:ef38
199.138.239.57 0:0:0:0:0:ffff:c78a:ef39
199.138.239.58 0:0:0:0:0:ffff:c78a:ef3a
199.138.239.59 0:0:0:0:0:ffff:c78a:ef3b
199.138.239.60 0:0:0:0:0:ffff:c78a:ef3c


199.138.239.61 0:0:0:0:0:ffff:c78a:ef3d
199.138.239.62 0:0:0:0:0:ffff:c78a:ef3e
199.138.239.63 0:0:0:0:0:ffff:c78a:ef3f
199.138.239.64 0:0:0:0:0:ffff:c78a:ef40
199.138.239.65 0:0:0:0:0:ffff:c78a:ef41
199.138.239.66 0:0:0:0:0:ffff:c78a:ef42
199.138.239.67 0:0:0:0:0:ffff:c78a:ef43
199.138.239.68 0:0:0:0:0:ffff:c78a:ef44
199.138.239.69 0:0:0:0:0:ffff:c78a:ef45
199.138.239.70 0:0:0:0:0:ffff:c78a:ef46
199.138.239.71 0:0:0:0:0:ffff:c78a:ef47
199.138.239.72 0:0:0:0:0:ffff:c78a:ef48
199.138.239.73 0:0:0:0:0:ffff:c78a:ef49
199.138.239.74 0:0:0:0:0:ffff:c78a:ef4a
199.138.239.75 0:0:0:0:0:ffff:c78a:ef4b
199.138.239.76 0:0:0:0:0:ffff:c78a:ef4c
199.138.239.77 0:0:0:0:0:ffff:c78a:ef4d
199.138.239.78 0:0:0:0:0:ffff:c78a:ef4e
199.138.239.79 0:0:0:0:0:ffff:c78a:ef4f
199.138.239.80 0:0:0:0:0:ffff:c78a:ef50
199.138.239.81 0:0:0:0:0:ffff:c78a:ef51
199.138.239.82 0:0:0:0:0:ffff:c78a:ef52
199.138.239.83 0:0:0:0:0:ffff:c78a:ef53
199.138.239.84 0:0:0:0:0:ffff:c78a:ef54
199.138.239.85 0:0:0:0:0:ffff:c78a:ef55
199.138.239.86 0:0:0:0:0:ffff:c78a:ef56
199.138.239.87 0:0:0:0:0:ffff:c78a:ef57
199.138.239.88 0:0:0:0:0:ffff:c78a:ef58
199.138.239.89 0:0:0:0:0:ffff:c78a:ef59
199.138.239.90 0:0:0:0:0:ffff:c78a:ef5a
199.138.239.91 0:0:0:0:0:ffff:c78a:ef5b
199.138.239.92 0:0:0:0:0:ffff:c78a:ef5c
199.138.239.93 0:0:0:0:0:ffff:c78a:ef5d
199.138.239.94 0:0:0:0:0:ffff:c78a:ef5e
199.138.239.95 0:0:0:0:0:ffff:c78a:ef5f
199.138.239.96 0:0:0:0:0:ffff:c78a:ef60
199.138.239.97 0:0:0:0:0:ffff:c78a:ef61
199.138.239.98 0:0:0:0:0:ffff:c78a:ef62
199.138.239.99 0:0:0:0:0:ffff:c78a:ef63
199.138.239.100 0:0:0:0:0:ffff:c78a:ef64
199.138.239.101 0:0:0:0:0:ffff:c78a:ef65
199.138.239.102 0:0:0:0:0:ffff:c78a:ef66
199.138.239.103 0:0:0:0:0:ffff:c78a:ef67
199.138.239.104 0:0:0:0:0:ffff:c78a:ef68
199.138.239.105 0:0:0:0:0:ffff:c78a:ef69
199.138.239.106 0:0:0:0:0:ffff:c78a:ef6a
199.138.239.107 0:0:0:0:0:ffff:c78a:ef6b
199.138.239.108 0:0:0:0:0:ffff:c78a:ef6c
199.138.239.109 0:0:0:0:0:ffff:c78a:ef6d
199.138.239.110 0:0:0:0:0:ffff:c78a:ef6e
199.138.239.111 0:0:0:0:0:ffff:c78a:ef6f
199.138.239.112 0:0:0:0:0:ffff:c78a:ef70
199.138.239.113 0:0:0:0:0:ffff:c78a:ef71
199.138.239.114 0:0:0:0:0:ffff:c78a:ef72
199.138.239.115 0:0:0:0:0:ffff:c78a:ef73
199.138.239.116 0:0:0:0:0:ffff:c78a:ef74
199.138.239.117 0:0:0:0:0:ffff:c78a:ef75
199.138.239.118 0:0:0:0:0:ffff:c78a:ef76
199.138.239.119 0:0:0:0:0:ffff:c78a:ef77
199.138.239.120 0:0:0:0:0:ffff:c78a:ef78


199.138.239.121 0:0:0:0:0:ffff:c78a:ef79
199.138.239.122 0:0:0:0:0:ffff:c78a:ef7a
199.138.239.123 0:0:0:0:0:ffff:c78a:ef7b
199.138.239.124 0:0:0:0:0:ffff:c78a:ef7c
199.138.239.125 0:0:0:0:0:ffff:c78a:ef7d
199.138.239.126 0:0:0:0:0:ffff:c78a:ef7e
199.138.239.127 0:0:0:0:0:ffff:c78a:ef7f
199.138.239.128 0:0:0:0:0:ffff:c78a:ef80
199.138.239.129 0:0:0:0:0:ffff:c78a:ef81
199.138.239.130 0:0:0:0:0:ffff:c78a:ef82
199.138.239.131 0:0:0:0:0:ffff:c78a:ef83
199.138.239.132 0:0:0:0:0:ffff:c78a:ef84
199.138.239.133 0:0:0:0:0:ffff:c78a:ef85
199.138.239.134 0:0:0:0:0:ffff:c78a:ef86
199.138.239.135 0:0:0:0:0:ffff:c78a:ef87
199.138.239.136 0:0:0:0:0:ffff:c78a:ef88
199.138.239.137 0:0:0:0:0:ffff:c78a:ef89
199.138.239.138 0:0:0:0:0:ffff:c78a:ef8a
199.138.239.139 0:0:0:0:0:ffff:c78a:ef8b
199.138.239.140 0:0:0:0:0:ffff:c78a:ef8c
199.138.239.141 0:0:0:0:0:ffff:c78a:ef8d
199.138.239.142 0:0:0:0:0:ffff:c78a:ef8e
199.138.239.143 0:0:0:0:0:ffff:c78a:ef8f
199.138.239.144 0:0:0:0:0:ffff:c78a:ef90
199.138.239.145 0:0:0:0:0:ffff:c78a:ef91
199.138.239.146 0:0:0:0:0:ffff:c78a:ef92
199.138.239.147 0:0:0:0:0:ffff:c78a:ef93
199.138.239.148 0:0:0:0:0:ffff:c78a:ef94
199.138.239.149 0:0:0:0:0:ffff:c78a:ef95
199.138.239.150 0:0:0:0:0:ffff:c78a:ef96
199.138.239.151 0:0:0:0:0:ffff:c78a:ef97
199.138.239.152 0:0:0:0:0:ffff:c78a:ef98
199.138.239.153 0:0:0:0:0:ffff:c78a:ef99
199.138.239.154 0:0:0:0:0:ffff:c78a:ef9a
199.138.239.155 0:0:0:0:0:ffff:c78a:ef9b
199.138.239.156 0:0:0:0:0:ffff:c78a:ef9c
199.138.239.157 0:0:0:0:0:ffff:c78a:ef9d
199.138.239.158 0:0:0:0:0:ffff:c78a:ef9e
199.138.239.159 0:0:0:0:0:ffff:c78a:ef9f
199.138.239.160 0:0:0:0:0:ffff:c78a:efa0
199.138.239.161 0:0:0:0:0:ffff:c78a:efa1
199.138.239.162 0:0:0:0:0:ffff:c78a:efa2
199.138.239.163 0:0:0:0:0:ffff:c78a:efa3
199.138.239.164 0:0:0:0:0:ffff:c78a:efa4
199.138.239.165 0:0:0:0:0:ffff:c78a:efa5
199.138.239.166 0:0:0:0:0:ffff:c78a:efa6
199.138.239.167 0:0:0:0:0:ffff:c78a:efa7
199.138.239.168 0:0:0:0:0:ffff:c78a:efa8
199.138.239.169 0:0:0:0:0:ffff:c78a:efa9
199.138.239.170 0:0:0:0:0:ffff:c78a:efaa
199.138.239.171 0:0:0:0:0:ffff:c78a:efab
199.138.239.172 0:0:0:0:0:ffff:c78a:efac
199.138.239.173 0:0:0:0:0:ffff:c78a:efad
199.138.239.174 0:0:0:0:0:ffff:c78a:efae
199.138.239.175 0:0:0:0:0:ffff:c78a:efaf
199.138.239.176 0:0:0:0:0:ffff:c78a:efb0
199.138.239.177 0:0:0:0:0:ffff:c78a:efb1
199.138.239.178 0:0:0:0:0:ffff:c78a:efb2
199.138.239.179 0:0:0:0:0:ffff:c78a:efb3
199.138.239.180 0:0:0:0:0:ffff:c78a:efb4


199.138.239.181 0:0:0:0:0:ffff:c78a:efb5
199.138.239.182 0:0:0:0:0:ffff:c78a:efb6
199.138.239.183 0:0:0:0:0:ffff:c78a:efb7
199.138.239.184 0:0:0:0:0:ffff:c78a:efb8
199.138.239.185 0:0:0:0:0:ffff:c78a:efb9
199.138.239.186 0:0:0:0:0:ffff:c78a:efba
199.138.239.187 0:0:0:0:0:ffff:c78a:efbb
199.138.239.188 0:0:0:0:0:ffff:c78a:efbc
199.138.239.189 0:0:0:0:0:ffff:c78a:efbd
199.138.239.190 0:0:0:0:0:ffff:c78a:efbe
199.138.239.191 0:0:0:0:0:ffff:c78a:efbf
199.138.239.192 0:0:0:0:0:ffff:c78a:efc0
199.138.239.193 0:0:0:0:0:ffff:c78a:efc1
199.138.239.194 0:0:0:0:0:ffff:c78a:efc2
199.138.239.195 0:0:0:0:0:ffff:c78a:efc3
199.138.239.196 0:0:0:0:0:ffff:c78a:efc4
199.138.239.197 0:0:0:0:0:ffff:c78a:efc5
199.138.239.198 0:0:0:0:0:ffff:c78a:efc6
199.138.239.199 0:0:0:0:0:ffff:c78a:efc7
199.138.239.200 0:0:0:0:0:ffff:c78a:efc8
199.138.239.201 0:0:0:0:0:ffff:c78a:efc9
199.138.239.202 0:0:0:0:0:ffff:c78a:efca
199.138.239.203 0:0:0:0:0:ffff:c78a:efcb
199.138.239.204 0:0:0:0:0:ffff:c78a:efcc
199.138.239.205 0:0:0:0:0:ffff:c78a:efcd
199.138.239.206 0:0:0:0:0:ffff:c78a:efce
199.138.239.207 0:0:0:0:0:ffff:c78a:efcf
199.138.239.208 0:0:0:0:0:ffff:c78a:efd0
199.138.239.209 0:0:0:0:0:ffff:c78a:efd1
199.138.239.210 0:0:0:0:0:ffff:c78a:efd2
199.138.239.211 0:0:0:0:0:ffff:c78a:efd3
199.138.239.212 0:0:0:0:0:ffff:c78a:efd4
199.138.239.213 0:0:0:0:0:ffff:c78a:efd5
199.138.239.214 0:0:0:0:0:ffff:c78a:efd6
199.138.239.215 0:0:0:0:0:ffff:c78a:efd7
199.138.239.216 0:0:0:0:0:ffff:c78a:efd8
199.138.239.217 0:0:0:0:0:ffff:c78a:efd9
199.138.239.218 0:0:0:0:0:ffff:c78a:efda
199.138.239.219 0:0:0:0:0:ffff:c78a:efdb
199.138.239.220 0:0:0:0:0:ffff:c78a:efdc
199.138.239.221 0:0:0:0:0:ffff:c78a:efdd
199.138.239.222 0:0:0:0:0:ffff:c78a:efde
199.138.239.223 0:0:0:0:0:ffff:c78a:efdf
199.138.239.224 0:0:0:0:0:ffff:c78a:efe0
199.138.239.225 0:0:0:0:0:ffff:c78a:efe1
199.138.239.226 0:0:0:0:0:ffff:c78a:efe2
199.138.239.227 0:0:0:0:0:ffff:c78a:efe3
199.138.239.228 0:0:0:0:0:ffff:c78a:efe4
199.138.239.229 0:0:0:0:0:ffff:c78a:efe5
199.138.239.230 0:0:0:0:0:ffff:c78a:efe6
199.138.239.231 0:0:0:0:0:ffff:c78a:efe7
199.138.239.232 0:0:0:0:0:ffff:c78a:efe8
199.138.239.233 0:0:0:0:0:ffff:c78a:efe9
199.138.239.234 0:0:0:0:0:ffff:c78a:efea
199.138.239.235 0:0:0:0:0:ffff:c78a:efeb
199.138.239.236 0:0:0:0:0:ffff:c78a:efec
199.138.239.237 0:0:0:0:0:ffff:c78a:efed
199.138.239.238 0:0:0:0:0:ffff:c78a:efee
199.138.239.239 0:0:0:0:0:ffff:c78a:efef
199.138.239.240 0:0:0:0:0:ffff:c78a:eff0
199.138.239.241 0:0:0:0:0:ffff:c78a:eff1
199.138.239.242 0:0:0:0:0:ffff:c78a:eff2
199.138.239.243 0:0:0:0:0:ffff:c78a:eff3
199.138.239.244 0:0:0:0:0:ffff:c78a:eff4
199.138.239.245 0:0:0:0:0:ffff:c78a:eff5
199.138.239.246 0:0:0:0:0:ffff:c78a:eff6
199.138.239.247 0:0:0:0:0:ffff:c78a:eff7
199.138.239.248 0:0:0:0:0:ffff:c78a:eff8
199.138.239.249 0:0:0:0:0:ffff:c78a:eff9
199.138.239.250 0:0:0:0:0:ffff:c78a:effa
199.138.239.251 0:0:0:0:0:ffff:c78a:effb
199.138.239.252 0:0:0:0:0:ffff:c78a:effc
199.138.239.253 0:0:0:0:0:ffff:c78a:effd
199.138.239.254 0:0:0:0:0:ffff:c78a:effe
199.138.239.255 0:0:0:0:0:ffff:c78a:efff


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.