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
12.91.9.1 0:0:0:0:0:ffff:c5b:901
12.91.9.2 0:0:0:0:0:ffff:c5b:902
12.91.9.3 0:0:0:0:0:ffff:c5b:903
12.91.9.4 0:0:0:0:0:ffff:c5b:904
12.91.9.5 0:0:0:0:0:ffff:c5b:905
12.91.9.6 0:0:0:0:0:ffff:c5b:906
12.91.9.7 0:0:0:0:0:ffff:c5b:907
12.91.9.8 0:0:0:0:0:ffff:c5b:908
12.91.9.9 0:0:0:0:0:ffff:c5b:909
12.91.9.10 0:0:0:0:0:ffff:c5b:90a
12.91.9.11 0:0:0:0:0:ffff:c5b:90b
12.91.9.12 0:0:0:0:0:ffff:c5b:90c
12.91.9.13 0:0:0:0:0:ffff:c5b:90d
12.91.9.14 0:0:0:0:0:ffff:c5b:90e
12.91.9.15 0:0:0:0:0:ffff:c5b:90f
12.91.9.16 0:0:0:0:0:ffff:c5b:910
12.91.9.17 0:0:0:0:0:ffff:c5b:911
12.91.9.18 0:0:0:0:0:ffff:c5b:912
12.91.9.19 0:0:0:0:0:ffff:c5b:913
12.91.9.20 0:0:0:0:0:ffff:c5b:914
12.91.9.21 0:0:0:0:0:ffff:c5b:915
12.91.9.22 0:0:0:0:0:ffff:c5b:916
12.91.9.23 0:0:0:0:0:ffff:c5b:917
12.91.9.24 0:0:0:0:0:ffff:c5b:918
12.91.9.25 0:0:0:0:0:ffff:c5b:919
12.91.9.26 0:0:0:0:0:ffff:c5b:91a
12.91.9.27 0:0:0:0:0:ffff:c5b:91b
12.91.9.28 0:0:0:0:0:ffff:c5b:91c
12.91.9.29 0:0:0:0:0:ffff:c5b:91d
12.91.9.30 0:0:0:0:0:ffff:c5b:91e
12.91.9.31 0:0:0:0:0:ffff:c5b:91f
12.91.9.32 0:0:0:0:0:ffff:c5b:920
12.91.9.33 0:0:0:0:0:ffff:c5b:921
12.91.9.34 0:0:0:0:0:ffff:c5b:922
12.91.9.35 0:0:0:0:0:ffff:c5b:923
12.91.9.36 0:0:0:0:0:ffff:c5b:924
12.91.9.37 0:0:0:0:0:ffff:c5b:925
12.91.9.38 0:0:0:0:0:ffff:c5b:926
12.91.9.39 0:0:0:0:0:ffff:c5b:927
12.91.9.40 0:0:0:0:0:ffff:c5b:928
12.91.9.41 0:0:0:0:0:ffff:c5b:929
12.91.9.42 0:0:0:0:0:ffff:c5b:92a
12.91.9.43 0:0:0:0:0:ffff:c5b:92b
12.91.9.44 0:0:0:0:0:ffff:c5b:92c
12.91.9.45 0:0:0:0:0:ffff:c5b:92d
12.91.9.46 0:0:0:0:0:ffff:c5b:92e
12.91.9.47 0:0:0:0:0:ffff:c5b:92f
12.91.9.48 0:0:0:0:0:ffff:c5b:930
12.91.9.49 0:0:0:0:0:ffff:c5b:931
12.91.9.50 0:0:0:0:0:ffff:c5b:932
12.91.9.51 0:0:0:0:0:ffff:c5b:933
12.91.9.52 0:0:0:0:0:ffff:c5b:934
12.91.9.53 0:0:0:0:0:ffff:c5b:935
12.91.9.54 0:0:0:0:0:ffff:c5b:936
12.91.9.55 0:0:0:0:0:ffff:c5b:937
12.91.9.56 0:0:0:0:0:ffff:c5b:938
12.91.9.57 0:0:0:0:0:ffff:c5b:939
12.91.9.58 0:0:0:0:0:ffff:c5b:93a
12.91.9.59 0:0:0:0:0:ffff:c5b:93b
12.91.9.60 0:0:0:0:0:ffff:c5b:93c


12.91.9.61 0:0:0:0:0:ffff:c5b:93d
12.91.9.62 0:0:0:0:0:ffff:c5b:93e
12.91.9.63 0:0:0:0:0:ffff:c5b:93f
12.91.9.64 0:0:0:0:0:ffff:c5b:940
12.91.9.65 0:0:0:0:0:ffff:c5b:941
12.91.9.66 0:0:0:0:0:ffff:c5b:942
12.91.9.67 0:0:0:0:0:ffff:c5b:943
12.91.9.68 0:0:0:0:0:ffff:c5b:944
12.91.9.69 0:0:0:0:0:ffff:c5b:945
12.91.9.70 0:0:0:0:0:ffff:c5b:946
12.91.9.71 0:0:0:0:0:ffff:c5b:947
12.91.9.72 0:0:0:0:0:ffff:c5b:948
12.91.9.73 0:0:0:0:0:ffff:c5b:949
12.91.9.74 0:0:0:0:0:ffff:c5b:94a
12.91.9.75 0:0:0:0:0:ffff:c5b:94b
12.91.9.76 0:0:0:0:0:ffff:c5b:94c
12.91.9.77 0:0:0:0:0:ffff:c5b:94d
12.91.9.78 0:0:0:0:0:ffff:c5b:94e
12.91.9.79 0:0:0:0:0:ffff:c5b:94f
12.91.9.80 0:0:0:0:0:ffff:c5b:950
12.91.9.81 0:0:0:0:0:ffff:c5b:951
12.91.9.82 0:0:0:0:0:ffff:c5b:952
12.91.9.83 0:0:0:0:0:ffff:c5b:953
12.91.9.84 0:0:0:0:0:ffff:c5b:954
12.91.9.85 0:0:0:0:0:ffff:c5b:955
12.91.9.86 0:0:0:0:0:ffff:c5b:956
12.91.9.87 0:0:0:0:0:ffff:c5b:957
12.91.9.88 0:0:0:0:0:ffff:c5b:958
12.91.9.89 0:0:0:0:0:ffff:c5b:959
12.91.9.90 0:0:0:0:0:ffff:c5b:95a
12.91.9.91 0:0:0:0:0:ffff:c5b:95b
12.91.9.92 0:0:0:0:0:ffff:c5b:95c
12.91.9.93 0:0:0:0:0:ffff:c5b:95d
12.91.9.94 0:0:0:0:0:ffff:c5b:95e
12.91.9.95 0:0:0:0:0:ffff:c5b:95f
12.91.9.96 0:0:0:0:0:ffff:c5b:960
12.91.9.97 0:0:0:0:0:ffff:c5b:961
12.91.9.98 0:0:0:0:0:ffff:c5b:962
12.91.9.99 0:0:0:0:0:ffff:c5b:963
12.91.9.100 0:0:0:0:0:ffff:c5b:964
12.91.9.101 0:0:0:0:0:ffff:c5b:965
12.91.9.102 0:0:0:0:0:ffff:c5b:966
12.91.9.103 0:0:0:0:0:ffff:c5b:967
12.91.9.104 0:0:0:0:0:ffff:c5b:968
12.91.9.105 0:0:0:0:0:ffff:c5b:969
12.91.9.106 0:0:0:0:0:ffff:c5b:96a
12.91.9.107 0:0:0:0:0:ffff:c5b:96b
12.91.9.108 0:0:0:0:0:ffff:c5b:96c
12.91.9.109 0:0:0:0:0:ffff:c5b:96d
12.91.9.110 0:0:0:0:0:ffff:c5b:96e
12.91.9.111 0:0:0:0:0:ffff:c5b:96f
12.91.9.112 0:0:0:0:0:ffff:c5b:970
12.91.9.113 0:0:0:0:0:ffff:c5b:971
12.91.9.114 0:0:0:0:0:ffff:c5b:972
12.91.9.115 0:0:0:0:0:ffff:c5b:973
12.91.9.116 0:0:0:0:0:ffff:c5b:974
12.91.9.117 0:0:0:0:0:ffff:c5b:975
12.91.9.118 0:0:0:0:0:ffff:c5b:976
12.91.9.119 0:0:0:0:0:ffff:c5b:977
12.91.9.120 0:0:0:0:0:ffff:c5b:978


12.91.9.121 0:0:0:0:0:ffff:c5b:979
12.91.9.122 0:0:0:0:0:ffff:c5b:97a
12.91.9.123 0:0:0:0:0:ffff:c5b:97b
12.91.9.124 0:0:0:0:0:ffff:c5b:97c
12.91.9.125 0:0:0:0:0:ffff:c5b:97d
12.91.9.126 0:0:0:0:0:ffff:c5b:97e
12.91.9.127 0:0:0:0:0:ffff:c5b:97f
12.91.9.128 0:0:0:0:0:ffff:c5b:980
12.91.9.129 0:0:0:0:0:ffff:c5b:981
12.91.9.130 0:0:0:0:0:ffff:c5b:982
12.91.9.131 0:0:0:0:0:ffff:c5b:983
12.91.9.132 0:0:0:0:0:ffff:c5b:984
12.91.9.133 0:0:0:0:0:ffff:c5b:985
12.91.9.134 0:0:0:0:0:ffff:c5b:986
12.91.9.135 0:0:0:0:0:ffff:c5b:987
12.91.9.136 0:0:0:0:0:ffff:c5b:988
12.91.9.137 0:0:0:0:0:ffff:c5b:989
12.91.9.138 0:0:0:0:0:ffff:c5b:98a
12.91.9.139 0:0:0:0:0:ffff:c5b:98b
12.91.9.140 0:0:0:0:0:ffff:c5b:98c
12.91.9.141 0:0:0:0:0:ffff:c5b:98d
12.91.9.142 0:0:0:0:0:ffff:c5b:98e
12.91.9.143 0:0:0:0:0:ffff:c5b:98f
12.91.9.144 0:0:0:0:0:ffff:c5b:990
12.91.9.145 0:0:0:0:0:ffff:c5b:991
12.91.9.146 0:0:0:0:0:ffff:c5b:992
12.91.9.147 0:0:0:0:0:ffff:c5b:993
12.91.9.148 0:0:0:0:0:ffff:c5b:994
12.91.9.149 0:0:0:0:0:ffff:c5b:995
12.91.9.150 0:0:0:0:0:ffff:c5b:996
12.91.9.151 0:0:0:0:0:ffff:c5b:997
12.91.9.152 0:0:0:0:0:ffff:c5b:998
12.91.9.153 0:0:0:0:0:ffff:c5b:999
12.91.9.154 0:0:0:0:0:ffff:c5b:99a
12.91.9.155 0:0:0:0:0:ffff:c5b:99b
12.91.9.156 0:0:0:0:0:ffff:c5b:99c
12.91.9.157 0:0:0:0:0:ffff:c5b:99d
12.91.9.158 0:0:0:0:0:ffff:c5b:99e
12.91.9.159 0:0:0:0:0:ffff:c5b:99f
12.91.9.160 0:0:0:0:0:ffff:c5b:9a0
12.91.9.161 0:0:0:0:0:ffff:c5b:9a1
12.91.9.162 0:0:0:0:0:ffff:c5b:9a2
12.91.9.163 0:0:0:0:0:ffff:c5b:9a3
12.91.9.164 0:0:0:0:0:ffff:c5b:9a4
12.91.9.165 0:0:0:0:0:ffff:c5b:9a5
12.91.9.166 0:0:0:0:0:ffff:c5b:9a6
12.91.9.167 0:0:0:0:0:ffff:c5b:9a7
12.91.9.168 0:0:0:0:0:ffff:c5b:9a8
12.91.9.169 0:0:0:0:0:ffff:c5b:9a9
12.91.9.170 0:0:0:0:0:ffff:c5b:9aa
12.91.9.171 0:0:0:0:0:ffff:c5b:9ab
12.91.9.172 0:0:0:0:0:ffff:c5b:9ac
12.91.9.173 0:0:0:0:0:ffff:c5b:9ad
12.91.9.174 0:0:0:0:0:ffff:c5b:9ae
12.91.9.175 0:0:0:0:0:ffff:c5b:9af
12.91.9.176 0:0:0:0:0:ffff:c5b:9b0
12.91.9.177 0:0:0:0:0:ffff:c5b:9b1
12.91.9.178 0:0:0:0:0:ffff:c5b:9b2
12.91.9.179 0:0:0:0:0:ffff:c5b:9b3
12.91.9.180 0:0:0:0:0:ffff:c5b:9b4


12.91.9.181 0:0:0:0:0:ffff:c5b:9b5
12.91.9.182 0:0:0:0:0:ffff:c5b:9b6
12.91.9.183 0:0:0:0:0:ffff:c5b:9b7
12.91.9.184 0:0:0:0:0:ffff:c5b:9b8
12.91.9.185 0:0:0:0:0:ffff:c5b:9b9
12.91.9.186 0:0:0:0:0:ffff:c5b:9ba
12.91.9.187 0:0:0:0:0:ffff:c5b:9bb
12.91.9.188 0:0:0:0:0:ffff:c5b:9bc
12.91.9.189 0:0:0:0:0:ffff:c5b:9bd
12.91.9.190 0:0:0:0:0:ffff:c5b:9be
12.91.9.191 0:0:0:0:0:ffff:c5b:9bf
12.91.9.192 0:0:0:0:0:ffff:c5b:9c0
12.91.9.193 0:0:0:0:0:ffff:c5b:9c1
12.91.9.194 0:0:0:0:0:ffff:c5b:9c2
12.91.9.195 0:0:0:0:0:ffff:c5b:9c3
12.91.9.196 0:0:0:0:0:ffff:c5b:9c4
12.91.9.197 0:0:0:0:0:ffff:c5b:9c5
12.91.9.198 0:0:0:0:0:ffff:c5b:9c6
12.91.9.199 0:0:0:0:0:ffff:c5b:9c7
12.91.9.200 0:0:0:0:0:ffff:c5b:9c8
12.91.9.201 0:0:0:0:0:ffff:c5b:9c9
12.91.9.202 0:0:0:0:0:ffff:c5b:9ca
12.91.9.203 0:0:0:0:0:ffff:c5b:9cb
12.91.9.204 0:0:0:0:0:ffff:c5b:9cc
12.91.9.205 0:0:0:0:0:ffff:c5b:9cd
12.91.9.206 0:0:0:0:0:ffff:c5b:9ce
12.91.9.207 0:0:0:0:0:ffff:c5b:9cf
12.91.9.208 0:0:0:0:0:ffff:c5b:9d0
12.91.9.209 0:0:0:0:0:ffff:c5b:9d1
12.91.9.210 0:0:0:0:0:ffff:c5b:9d2
12.91.9.211 0:0:0:0:0:ffff:c5b:9d3
12.91.9.212 0:0:0:0:0:ffff:c5b:9d4
12.91.9.213 0:0:0:0:0:ffff:c5b:9d5
12.91.9.214 0:0:0:0:0:ffff:c5b:9d6
12.91.9.215 0:0:0:0:0:ffff:c5b:9d7
12.91.9.216 0:0:0:0:0:ffff:c5b:9d8
12.91.9.217 0:0:0:0:0:ffff:c5b:9d9
12.91.9.218 0:0:0:0:0:ffff:c5b:9da
12.91.9.219 0:0:0:0:0:ffff:c5b:9db
12.91.9.220 0:0:0:0:0:ffff:c5b:9dc
12.91.9.221 0:0:0:0:0:ffff:c5b:9dd
12.91.9.222 0:0:0:0:0:ffff:c5b:9de
12.91.9.223 0:0:0:0:0:ffff:c5b:9df
12.91.9.224 0:0:0:0:0:ffff:c5b:9e0
12.91.9.225 0:0:0:0:0:ffff:c5b:9e1
12.91.9.226 0:0:0:0:0:ffff:c5b:9e2
12.91.9.227 0:0:0:0:0:ffff:c5b:9e3
12.91.9.228 0:0:0:0:0:ffff:c5b:9e4
12.91.9.229 0:0:0:0:0:ffff:c5b:9e5
12.91.9.230 0:0:0:0:0:ffff:c5b:9e6
12.91.9.231 0:0:0:0:0:ffff:c5b:9e7
12.91.9.232 0:0:0:0:0:ffff:c5b:9e8
12.91.9.233 0:0:0:0:0:ffff:c5b:9e9
12.91.9.234 0:0:0:0:0:ffff:c5b:9ea
12.91.9.235 0:0:0:0:0:ffff:c5b:9eb
12.91.9.236 0:0:0:0:0:ffff:c5b:9ec
12.91.9.237 0:0:0:0:0:ffff:c5b:9ed
12.91.9.238 0:0:0:0:0:ffff:c5b:9ee
12.91.9.239 0:0:0:0:0:ffff:c5b:9ef
12.91.9.240 0:0:0:0:0:ffff:c5b:9f0
12.91.9.241 0:0:0:0:0:ffff:c5b:9f1
12.91.9.242 0:0:0:0:0:ffff:c5b:9f2
12.91.9.243 0:0:0:0:0:ffff:c5b:9f3
12.91.9.244 0:0:0:0:0:ffff:c5b:9f4
12.91.9.245 0:0:0:0:0:ffff:c5b:9f5
12.91.9.246 0:0:0:0:0:ffff:c5b:9f6
12.91.9.247 0:0:0:0:0:ffff:c5b:9f7
12.91.9.248 0:0:0:0:0:ffff:c5b:9f8
12.91.9.249 0:0:0:0:0:ffff:c5b:9f9
12.91.9.250 0:0:0:0:0:ffff:c5b:9fa
12.91.9.251 0:0:0:0:0:ffff:c5b:9fb
12.91.9.252 0:0:0:0:0:ffff:c5b:9fc
12.91.9.253 0:0:0:0:0:ffff:c5b:9fd
12.91.9.254 0:0:0:0:0:ffff:c5b:9fe
12.91.9.255 0:0:0:0:0:ffff:c5b:9ff


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.