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
199.138.249.1 0:0:0:0:0:ffff:c78a:f901
199.138.249.2 0:0:0:0:0:ffff:c78a:f902
199.138.249.3 0:0:0:0:0:ffff:c78a:f903
199.138.249.4 0:0:0:0:0:ffff:c78a:f904
199.138.249.5 0:0:0:0:0:ffff:c78a:f905
199.138.249.6 0:0:0:0:0:ffff:c78a:f906
199.138.249.7 0:0:0:0:0:ffff:c78a:f907
199.138.249.8 0:0:0:0:0:ffff:c78a:f908
199.138.249.9 0:0:0:0:0:ffff:c78a:f909
199.138.249.10 0:0:0:0:0:ffff:c78a:f90a
199.138.249.11 0:0:0:0:0:ffff:c78a:f90b
199.138.249.12 0:0:0:0:0:ffff:c78a:f90c
199.138.249.13 0:0:0:0:0:ffff:c78a:f90d
199.138.249.14 0:0:0:0:0:ffff:c78a:f90e
199.138.249.15 0:0:0:0:0:ffff:c78a:f90f
199.138.249.16 0:0:0:0:0:ffff:c78a:f910
199.138.249.17 0:0:0:0:0:ffff:c78a:f911
199.138.249.18 0:0:0:0:0:ffff:c78a:f912
199.138.249.19 0:0:0:0:0:ffff:c78a:f913
199.138.249.20 0:0:0:0:0:ffff:c78a:f914
199.138.249.21 0:0:0:0:0:ffff:c78a:f915
199.138.249.22 0:0:0:0:0:ffff:c78a:f916
199.138.249.23 0:0:0:0:0:ffff:c78a:f917
199.138.249.24 0:0:0:0:0:ffff:c78a:f918
199.138.249.25 0:0:0:0:0:ffff:c78a:f919
199.138.249.26 0:0:0:0:0:ffff:c78a:f91a
199.138.249.27 0:0:0:0:0:ffff:c78a:f91b
199.138.249.28 0:0:0:0:0:ffff:c78a:f91c
199.138.249.29 0:0:0:0:0:ffff:c78a:f91d
199.138.249.30 0:0:0:0:0:ffff:c78a:f91e
199.138.249.31 0:0:0:0:0:ffff:c78a:f91f
199.138.249.32 0:0:0:0:0:ffff:c78a:f920
199.138.249.33 0:0:0:0:0:ffff:c78a:f921
199.138.249.34 0:0:0:0:0:ffff:c78a:f922
199.138.249.35 0:0:0:0:0:ffff:c78a:f923
199.138.249.36 0:0:0:0:0:ffff:c78a:f924
199.138.249.37 0:0:0:0:0:ffff:c78a:f925
199.138.249.38 0:0:0:0:0:ffff:c78a:f926
199.138.249.39 0:0:0:0:0:ffff:c78a:f927
199.138.249.40 0:0:0:0:0:ffff:c78a:f928
199.138.249.41 0:0:0:0:0:ffff:c78a:f929
199.138.249.42 0:0:0:0:0:ffff:c78a:f92a
199.138.249.43 0:0:0:0:0:ffff:c78a:f92b
199.138.249.44 0:0:0:0:0:ffff:c78a:f92c
199.138.249.45 0:0:0:0:0:ffff:c78a:f92d
199.138.249.46 0:0:0:0:0:ffff:c78a:f92e
199.138.249.47 0:0:0:0:0:ffff:c78a:f92f
199.138.249.48 0:0:0:0:0:ffff:c78a:f930
199.138.249.49 0:0:0:0:0:ffff:c78a:f931
199.138.249.50 0:0:0:0:0:ffff:c78a:f932
199.138.249.51 0:0:0:0:0:ffff:c78a:f933
199.138.249.52 0:0:0:0:0:ffff:c78a:f934
199.138.249.53 0:0:0:0:0:ffff:c78a:f935
199.138.249.54 0:0:0:0:0:ffff:c78a:f936
199.138.249.55 0:0:0:0:0:ffff:c78a:f937
199.138.249.56 0:0:0:0:0:ffff:c78a:f938
199.138.249.57 0:0:0:0:0:ffff:c78a:f939
199.138.249.58 0:0:0:0:0:ffff:c78a:f93a
199.138.249.59 0:0:0:0:0:ffff:c78a:f93b
199.138.249.60 0:0:0:0:0:ffff:c78a:f93c


199.138.249.61 0:0:0:0:0:ffff:c78a:f93d
199.138.249.62 0:0:0:0:0:ffff:c78a:f93e
199.138.249.63 0:0:0:0:0:ffff:c78a:f93f
199.138.249.64 0:0:0:0:0:ffff:c78a:f940
199.138.249.65 0:0:0:0:0:ffff:c78a:f941
199.138.249.66 0:0:0:0:0:ffff:c78a:f942
199.138.249.67 0:0:0:0:0:ffff:c78a:f943
199.138.249.68 0:0:0:0:0:ffff:c78a:f944
199.138.249.69 0:0:0:0:0:ffff:c78a:f945
199.138.249.70 0:0:0:0:0:ffff:c78a:f946
199.138.249.71 0:0:0:0:0:ffff:c78a:f947
199.138.249.72 0:0:0:0:0:ffff:c78a:f948
199.138.249.73 0:0:0:0:0:ffff:c78a:f949
199.138.249.74 0:0:0:0:0:ffff:c78a:f94a
199.138.249.75 0:0:0:0:0:ffff:c78a:f94b
199.138.249.76 0:0:0:0:0:ffff:c78a:f94c
199.138.249.77 0:0:0:0:0:ffff:c78a:f94d
199.138.249.78 0:0:0:0:0:ffff:c78a:f94e
199.138.249.79 0:0:0:0:0:ffff:c78a:f94f
199.138.249.80 0:0:0:0:0:ffff:c78a:f950
199.138.249.81 0:0:0:0:0:ffff:c78a:f951
199.138.249.82 0:0:0:0:0:ffff:c78a:f952
199.138.249.83 0:0:0:0:0:ffff:c78a:f953
199.138.249.84 0:0:0:0:0:ffff:c78a:f954
199.138.249.85 0:0:0:0:0:ffff:c78a:f955
199.138.249.86 0:0:0:0:0:ffff:c78a:f956
199.138.249.87 0:0:0:0:0:ffff:c78a:f957
199.138.249.88 0:0:0:0:0:ffff:c78a:f958
199.138.249.89 0:0:0:0:0:ffff:c78a:f959
199.138.249.90 0:0:0:0:0:ffff:c78a:f95a
199.138.249.91 0:0:0:0:0:ffff:c78a:f95b
199.138.249.92 0:0:0:0:0:ffff:c78a:f95c
199.138.249.93 0:0:0:0:0:ffff:c78a:f95d
199.138.249.94 0:0:0:0:0:ffff:c78a:f95e
199.138.249.95 0:0:0:0:0:ffff:c78a:f95f
199.138.249.96 0:0:0:0:0:ffff:c78a:f960
199.138.249.97 0:0:0:0:0:ffff:c78a:f961
199.138.249.98 0:0:0:0:0:ffff:c78a:f962
199.138.249.99 0:0:0:0:0:ffff:c78a:f963
199.138.249.100 0:0:0:0:0:ffff:c78a:f964
199.138.249.101 0:0:0:0:0:ffff:c78a:f965
199.138.249.102 0:0:0:0:0:ffff:c78a:f966
199.138.249.103 0:0:0:0:0:ffff:c78a:f967
199.138.249.104 0:0:0:0:0:ffff:c78a:f968
199.138.249.105 0:0:0:0:0:ffff:c78a:f969
199.138.249.106 0:0:0:0:0:ffff:c78a:f96a
199.138.249.107 0:0:0:0:0:ffff:c78a:f96b
199.138.249.108 0:0:0:0:0:ffff:c78a:f96c
199.138.249.109 0:0:0:0:0:ffff:c78a:f96d
199.138.249.110 0:0:0:0:0:ffff:c78a:f96e
199.138.249.111 0:0:0:0:0:ffff:c78a:f96f
199.138.249.112 0:0:0:0:0:ffff:c78a:f970
199.138.249.113 0:0:0:0:0:ffff:c78a:f971
199.138.249.114 0:0:0:0:0:ffff:c78a:f972
199.138.249.115 0:0:0:0:0:ffff:c78a:f973
199.138.249.116 0:0:0:0:0:ffff:c78a:f974
199.138.249.117 0:0:0:0:0:ffff:c78a:f975
199.138.249.118 0:0:0:0:0:ffff:c78a:f976
199.138.249.119 0:0:0:0:0:ffff:c78a:f977
199.138.249.120 0:0:0:0:0:ffff:c78a:f978


199.138.249.121 0:0:0:0:0:ffff:c78a:f979
199.138.249.122 0:0:0:0:0:ffff:c78a:f97a
199.138.249.123 0:0:0:0:0:ffff:c78a:f97b
199.138.249.124 0:0:0:0:0:ffff:c78a:f97c
199.138.249.125 0:0:0:0:0:ffff:c78a:f97d
199.138.249.126 0:0:0:0:0:ffff:c78a:f97e
199.138.249.127 0:0:0:0:0:ffff:c78a:f97f
199.138.249.128 0:0:0:0:0:ffff:c78a:f980
199.138.249.129 0:0:0:0:0:ffff:c78a:f981
199.138.249.130 0:0:0:0:0:ffff:c78a:f982
199.138.249.131 0:0:0:0:0:ffff:c78a:f983
199.138.249.132 0:0:0:0:0:ffff:c78a:f984
199.138.249.133 0:0:0:0:0:ffff:c78a:f985
199.138.249.134 0:0:0:0:0:ffff:c78a:f986
199.138.249.135 0:0:0:0:0:ffff:c78a:f987
199.138.249.136 0:0:0:0:0:ffff:c78a:f988
199.138.249.137 0:0:0:0:0:ffff:c78a:f989
199.138.249.138 0:0:0:0:0:ffff:c78a:f98a
199.138.249.139 0:0:0:0:0:ffff:c78a:f98b
199.138.249.140 0:0:0:0:0:ffff:c78a:f98c
199.138.249.141 0:0:0:0:0:ffff:c78a:f98d
199.138.249.142 0:0:0:0:0:ffff:c78a:f98e
199.138.249.143 0:0:0:0:0:ffff:c78a:f98f
199.138.249.144 0:0:0:0:0:ffff:c78a:f990
199.138.249.145 0:0:0:0:0:ffff:c78a:f991
199.138.249.146 0:0:0:0:0:ffff:c78a:f992
199.138.249.147 0:0:0:0:0:ffff:c78a:f993
199.138.249.148 0:0:0:0:0:ffff:c78a:f994
199.138.249.149 0:0:0:0:0:ffff:c78a:f995
199.138.249.150 0:0:0:0:0:ffff:c78a:f996
199.138.249.151 0:0:0:0:0:ffff:c78a:f997
199.138.249.152 0:0:0:0:0:ffff:c78a:f998
199.138.249.153 0:0:0:0:0:ffff:c78a:f999
199.138.249.154 0:0:0:0:0:ffff:c78a:f99a
199.138.249.155 0:0:0:0:0:ffff:c78a:f99b
199.138.249.156 0:0:0:0:0:ffff:c78a:f99c
199.138.249.157 0:0:0:0:0:ffff:c78a:f99d
199.138.249.158 0:0:0:0:0:ffff:c78a:f99e
199.138.249.159 0:0:0:0:0:ffff:c78a:f99f
199.138.249.160 0:0:0:0:0:ffff:c78a:f9a0
199.138.249.161 0:0:0:0:0:ffff:c78a:f9a1
199.138.249.162 0:0:0:0:0:ffff:c78a:f9a2
199.138.249.163 0:0:0:0:0:ffff:c78a:f9a3
199.138.249.164 0:0:0:0:0:ffff:c78a:f9a4
199.138.249.165 0:0:0:0:0:ffff:c78a:f9a5
199.138.249.166 0:0:0:0:0:ffff:c78a:f9a6
199.138.249.167 0:0:0:0:0:ffff:c78a:f9a7
199.138.249.168 0:0:0:0:0:ffff:c78a:f9a8
199.138.249.169 0:0:0:0:0:ffff:c78a:f9a9
199.138.249.170 0:0:0:0:0:ffff:c78a:f9aa
199.138.249.171 0:0:0:0:0:ffff:c78a:f9ab
199.138.249.172 0:0:0:0:0:ffff:c78a:f9ac
199.138.249.173 0:0:0:0:0:ffff:c78a:f9ad
199.138.249.174 0:0:0:0:0:ffff:c78a:f9ae
199.138.249.175 0:0:0:0:0:ffff:c78a:f9af
199.138.249.176 0:0:0:0:0:ffff:c78a:f9b0
199.138.249.177 0:0:0:0:0:ffff:c78a:f9b1
199.138.249.178 0:0:0:0:0:ffff:c78a:f9b2
199.138.249.179 0:0:0:0:0:ffff:c78a:f9b3
199.138.249.180 0:0:0:0:0:ffff:c78a:f9b4


199.138.249.181 0:0:0:0:0:ffff:c78a:f9b5
199.138.249.182 0:0:0:0:0:ffff:c78a:f9b6
199.138.249.183 0:0:0:0:0:ffff:c78a:f9b7
199.138.249.184 0:0:0:0:0:ffff:c78a:f9b8
199.138.249.185 0:0:0:0:0:ffff:c78a:f9b9
199.138.249.186 0:0:0:0:0:ffff:c78a:f9ba
199.138.249.187 0:0:0:0:0:ffff:c78a:f9bb
199.138.249.188 0:0:0:0:0:ffff:c78a:f9bc
199.138.249.189 0:0:0:0:0:ffff:c78a:f9bd
199.138.249.190 0:0:0:0:0:ffff:c78a:f9be
199.138.249.191 0:0:0:0:0:ffff:c78a:f9bf
199.138.249.192 0:0:0:0:0:ffff:c78a:f9c0
199.138.249.193 0:0:0:0:0:ffff:c78a:f9c1
199.138.249.194 0:0:0:0:0:ffff:c78a:f9c2
199.138.249.195 0:0:0:0:0:ffff:c78a:f9c3
199.138.249.196 0:0:0:0:0:ffff:c78a:f9c4
199.138.249.197 0:0:0:0:0:ffff:c78a:f9c5
199.138.249.198 0:0:0:0:0:ffff:c78a:f9c6
199.138.249.199 0:0:0:0:0:ffff:c78a:f9c7
199.138.249.200 0:0:0:0:0:ffff:c78a:f9c8
199.138.249.201 0:0:0:0:0:ffff:c78a:f9c9
199.138.249.202 0:0:0:0:0:ffff:c78a:f9ca
199.138.249.203 0:0:0:0:0:ffff:c78a:f9cb
199.138.249.204 0:0:0:0:0:ffff:c78a:f9cc
199.138.249.205 0:0:0:0:0:ffff:c78a:f9cd
199.138.249.206 0:0:0:0:0:ffff:c78a:f9ce
199.138.249.207 0:0:0:0:0:ffff:c78a:f9cf
199.138.249.208 0:0:0:0:0:ffff:c78a:f9d0
199.138.249.209 0:0:0:0:0:ffff:c78a:f9d1
199.138.249.210 0:0:0:0:0:ffff:c78a:f9d2
199.138.249.211 0:0:0:0:0:ffff:c78a:f9d3
199.138.249.212 0:0:0:0:0:ffff:c78a:f9d4
199.138.249.213 0:0:0:0:0:ffff:c78a:f9d5
199.138.249.214 0:0:0:0:0:ffff:c78a:f9d6
199.138.249.215 0:0:0:0:0:ffff:c78a:f9d7
199.138.249.216 0:0:0:0:0:ffff:c78a:f9d8
199.138.249.217 0:0:0:0:0:ffff:c78a:f9d9
199.138.249.218 0:0:0:0:0:ffff:c78a:f9da
199.138.249.219 0:0:0:0:0:ffff:c78a:f9db
199.138.249.220 0:0:0:0:0:ffff:c78a:f9dc
199.138.249.221 0:0:0:0:0:ffff:c78a:f9dd
199.138.249.222 0:0:0:0:0:ffff:c78a:f9de
199.138.249.223 0:0:0:0:0:ffff:c78a:f9df
199.138.249.224 0:0:0:0:0:ffff:c78a:f9e0
199.138.249.225 0:0:0:0:0:ffff:c78a:f9e1
199.138.249.226 0:0:0:0:0:ffff:c78a:f9e2
199.138.249.227 0:0:0:0:0:ffff:c78a:f9e3
199.138.249.228 0:0:0:0:0:ffff:c78a:f9e4
199.138.249.229 0:0:0:0:0:ffff:c78a:f9e5
199.138.249.230 0:0:0:0:0:ffff:c78a:f9e6
199.138.249.231 0:0:0:0:0:ffff:c78a:f9e7
199.138.249.232 0:0:0:0:0:ffff:c78a:f9e8
199.138.249.233 0:0:0:0:0:ffff:c78a:f9e9
199.138.249.234 0:0:0:0:0:ffff:c78a:f9ea
199.138.249.235 0:0:0:0:0:ffff:c78a:f9eb
199.138.249.236 0:0:0:0:0:ffff:c78a:f9ec
199.138.249.237 0:0:0:0:0:ffff:c78a:f9ed
199.138.249.238 0:0:0:0:0:ffff:c78a:f9ee
199.138.249.239 0:0:0:0:0:ffff:c78a:f9ef
199.138.249.240 0:0:0:0:0:ffff:c78a:f9f0
199.138.249.241 0:0:0:0:0:ffff:c78a:f9f1
199.138.249.242 0:0:0:0:0:ffff:c78a:f9f2
199.138.249.243 0:0:0:0:0:ffff:c78a:f9f3
199.138.249.244 0:0:0:0:0:ffff:c78a:f9f4
199.138.249.245 0:0:0:0:0:ffff:c78a:f9f5
199.138.249.246 0:0:0:0:0:ffff:c78a:f9f6
199.138.249.247 0:0:0:0:0:ffff:c78a:f9f7
199.138.249.248 0:0:0:0:0:ffff:c78a:f9f8
199.138.249.249 0:0:0:0:0:ffff:c78a:f9f9
199.138.249.250 0:0:0:0:0:ffff:c78a:f9fa
199.138.249.251 0:0:0:0:0:ffff:c78a:f9fb
199.138.249.252 0:0:0:0:0:ffff:c78a:f9fc
199.138.249.253 0:0:0:0:0:ffff:c78a:f9fd
199.138.249.254 0:0:0:0:0:ffff:c78a:f9fe
199.138.249.255 0:0:0:0:0:ffff:c78a:f9ff


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.