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
65.121.248.1 0:0:0:0:0:ffff:4179:f801
65.121.248.2 0:0:0:0:0:ffff:4179:f802
65.121.248.3 0:0:0:0:0:ffff:4179:f803
65.121.248.4 0:0:0:0:0:ffff:4179:f804
65.121.248.5 0:0:0:0:0:ffff:4179:f805
65.121.248.6 0:0:0:0:0:ffff:4179:f806
65.121.248.7 0:0:0:0:0:ffff:4179:f807
65.121.248.8 0:0:0:0:0:ffff:4179:f808
65.121.248.9 0:0:0:0:0:ffff:4179:f809
65.121.248.10 0:0:0:0:0:ffff:4179:f80a
65.121.248.11 0:0:0:0:0:ffff:4179:f80b
65.121.248.12 0:0:0:0:0:ffff:4179:f80c
65.121.248.13 0:0:0:0:0:ffff:4179:f80d
65.121.248.14 0:0:0:0:0:ffff:4179:f80e
65.121.248.15 0:0:0:0:0:ffff:4179:f80f
65.121.248.16 0:0:0:0:0:ffff:4179:f810
65.121.248.17 0:0:0:0:0:ffff:4179:f811
65.121.248.18 0:0:0:0:0:ffff:4179:f812
65.121.248.19 0:0:0:0:0:ffff:4179:f813
65.121.248.20 0:0:0:0:0:ffff:4179:f814
65.121.248.21 0:0:0:0:0:ffff:4179:f815
65.121.248.22 0:0:0:0:0:ffff:4179:f816
65.121.248.23 0:0:0:0:0:ffff:4179:f817
65.121.248.24 0:0:0:0:0:ffff:4179:f818
65.121.248.25 0:0:0:0:0:ffff:4179:f819
65.121.248.26 0:0:0:0:0:ffff:4179:f81a
65.121.248.27 0:0:0:0:0:ffff:4179:f81b
65.121.248.28 0:0:0:0:0:ffff:4179:f81c
65.121.248.29 0:0:0:0:0:ffff:4179:f81d
65.121.248.30 0:0:0:0:0:ffff:4179:f81e
65.121.248.31 0:0:0:0:0:ffff:4179:f81f
65.121.248.32 0:0:0:0:0:ffff:4179:f820
65.121.248.33 0:0:0:0:0:ffff:4179:f821
65.121.248.34 0:0:0:0:0:ffff:4179:f822
65.121.248.35 0:0:0:0:0:ffff:4179:f823
65.121.248.36 0:0:0:0:0:ffff:4179:f824
65.121.248.37 0:0:0:0:0:ffff:4179:f825
65.121.248.38 0:0:0:0:0:ffff:4179:f826
65.121.248.39 0:0:0:0:0:ffff:4179:f827
65.121.248.40 0:0:0:0:0:ffff:4179:f828
65.121.248.41 0:0:0:0:0:ffff:4179:f829
65.121.248.42 0:0:0:0:0:ffff:4179:f82a
65.121.248.43 0:0:0:0:0:ffff:4179:f82b
65.121.248.44 0:0:0:0:0:ffff:4179:f82c
65.121.248.45 0:0:0:0:0:ffff:4179:f82d
65.121.248.46 0:0:0:0:0:ffff:4179:f82e
65.121.248.47 0:0:0:0:0:ffff:4179:f82f
65.121.248.48 0:0:0:0:0:ffff:4179:f830
65.121.248.49 0:0:0:0:0:ffff:4179:f831
65.121.248.50 0:0:0:0:0:ffff:4179:f832
65.121.248.51 0:0:0:0:0:ffff:4179:f833
65.121.248.52 0:0:0:0:0:ffff:4179:f834
65.121.248.53 0:0:0:0:0:ffff:4179:f835
65.121.248.54 0:0:0:0:0:ffff:4179:f836
65.121.248.55 0:0:0:0:0:ffff:4179:f837
65.121.248.56 0:0:0:0:0:ffff:4179:f838
65.121.248.57 0:0:0:0:0:ffff:4179:f839
65.121.248.58 0:0:0:0:0:ffff:4179:f83a
65.121.248.59 0:0:0:0:0:ffff:4179:f83b
65.121.248.60 0:0:0:0:0:ffff:4179:f83c


65.121.248.61 0:0:0:0:0:ffff:4179:f83d
65.121.248.62 0:0:0:0:0:ffff:4179:f83e
65.121.248.63 0:0:0:0:0:ffff:4179:f83f
65.121.248.64 0:0:0:0:0:ffff:4179:f840
65.121.248.65 0:0:0:0:0:ffff:4179:f841
65.121.248.66 0:0:0:0:0:ffff:4179:f842
65.121.248.67 0:0:0:0:0:ffff:4179:f843
65.121.248.68 0:0:0:0:0:ffff:4179:f844
65.121.248.69 0:0:0:0:0:ffff:4179:f845
65.121.248.70 0:0:0:0:0:ffff:4179:f846
65.121.248.71 0:0:0:0:0:ffff:4179:f847
65.121.248.72 0:0:0:0:0:ffff:4179:f848
65.121.248.73 0:0:0:0:0:ffff:4179:f849
65.121.248.74 0:0:0:0:0:ffff:4179:f84a
65.121.248.75 0:0:0:0:0:ffff:4179:f84b
65.121.248.76 0:0:0:0:0:ffff:4179:f84c
65.121.248.77 0:0:0:0:0:ffff:4179:f84d
65.121.248.78 0:0:0:0:0:ffff:4179:f84e
65.121.248.79 0:0:0:0:0:ffff:4179:f84f
65.121.248.80 0:0:0:0:0:ffff:4179:f850
65.121.248.81 0:0:0:0:0:ffff:4179:f851
65.121.248.82 0:0:0:0:0:ffff:4179:f852
65.121.248.83 0:0:0:0:0:ffff:4179:f853
65.121.248.84 0:0:0:0:0:ffff:4179:f854
65.121.248.85 0:0:0:0:0:ffff:4179:f855
65.121.248.86 0:0:0:0:0:ffff:4179:f856
65.121.248.87 0:0:0:0:0:ffff:4179:f857
65.121.248.88 0:0:0:0:0:ffff:4179:f858
65.121.248.89 0:0:0:0:0:ffff:4179:f859
65.121.248.90 0:0:0:0:0:ffff:4179:f85a
65.121.248.91 0:0:0:0:0:ffff:4179:f85b
65.121.248.92 0:0:0:0:0:ffff:4179:f85c
65.121.248.93 0:0:0:0:0:ffff:4179:f85d
65.121.248.94 0:0:0:0:0:ffff:4179:f85e
65.121.248.95 0:0:0:0:0:ffff:4179:f85f
65.121.248.96 0:0:0:0:0:ffff:4179:f860
65.121.248.97 0:0:0:0:0:ffff:4179:f861
65.121.248.98 0:0:0:0:0:ffff:4179:f862
65.121.248.99 0:0:0:0:0:ffff:4179:f863
65.121.248.100 0:0:0:0:0:ffff:4179:f864
65.121.248.101 0:0:0:0:0:ffff:4179:f865
65.121.248.102 0:0:0:0:0:ffff:4179:f866
65.121.248.103 0:0:0:0:0:ffff:4179:f867
65.121.248.104 0:0:0:0:0:ffff:4179:f868
65.121.248.105 0:0:0:0:0:ffff:4179:f869
65.121.248.106 0:0:0:0:0:ffff:4179:f86a
65.121.248.107 0:0:0:0:0:ffff:4179:f86b
65.121.248.108 0:0:0:0:0:ffff:4179:f86c
65.121.248.109 0:0:0:0:0:ffff:4179:f86d
65.121.248.110 0:0:0:0:0:ffff:4179:f86e
65.121.248.111 0:0:0:0:0:ffff:4179:f86f
65.121.248.112 0:0:0:0:0:ffff:4179:f870
65.121.248.113 0:0:0:0:0:ffff:4179:f871
65.121.248.114 0:0:0:0:0:ffff:4179:f872
65.121.248.115 0:0:0:0:0:ffff:4179:f873
65.121.248.116 0:0:0:0:0:ffff:4179:f874
65.121.248.117 0:0:0:0:0:ffff:4179:f875
65.121.248.118 0:0:0:0:0:ffff:4179:f876
65.121.248.119 0:0:0:0:0:ffff:4179:f877
65.121.248.120 0:0:0:0:0:ffff:4179:f878


65.121.248.121 0:0:0:0:0:ffff:4179:f879
65.121.248.122 0:0:0:0:0:ffff:4179:f87a
65.121.248.123 0:0:0:0:0:ffff:4179:f87b
65.121.248.124 0:0:0:0:0:ffff:4179:f87c
65.121.248.125 0:0:0:0:0:ffff:4179:f87d
65.121.248.126 0:0:0:0:0:ffff:4179:f87e
65.121.248.127 0:0:0:0:0:ffff:4179:f87f
65.121.248.128 0:0:0:0:0:ffff:4179:f880
65.121.248.129 0:0:0:0:0:ffff:4179:f881
65.121.248.130 0:0:0:0:0:ffff:4179:f882
65.121.248.131 0:0:0:0:0:ffff:4179:f883
65.121.248.132 0:0:0:0:0:ffff:4179:f884
65.121.248.133 0:0:0:0:0:ffff:4179:f885
65.121.248.134 0:0:0:0:0:ffff:4179:f886
65.121.248.135 0:0:0:0:0:ffff:4179:f887
65.121.248.136 0:0:0:0:0:ffff:4179:f888
65.121.248.137 0:0:0:0:0:ffff:4179:f889
65.121.248.138 0:0:0:0:0:ffff:4179:f88a
65.121.248.139 0:0:0:0:0:ffff:4179:f88b
65.121.248.140 0:0:0:0:0:ffff:4179:f88c
65.121.248.141 0:0:0:0:0:ffff:4179:f88d
65.121.248.142 0:0:0:0:0:ffff:4179:f88e
65.121.248.143 0:0:0:0:0:ffff:4179:f88f
65.121.248.144 0:0:0:0:0:ffff:4179:f890
65.121.248.145 0:0:0:0:0:ffff:4179:f891
65.121.248.146 0:0:0:0:0:ffff:4179:f892
65.121.248.147 0:0:0:0:0:ffff:4179:f893
65.121.248.148 0:0:0:0:0:ffff:4179:f894
65.121.248.149 0:0:0:0:0:ffff:4179:f895
65.121.248.150 0:0:0:0:0:ffff:4179:f896
65.121.248.151 0:0:0:0:0:ffff:4179:f897
65.121.248.152 0:0:0:0:0:ffff:4179:f898
65.121.248.153 0:0:0:0:0:ffff:4179:f899
65.121.248.154 0:0:0:0:0:ffff:4179:f89a
65.121.248.155 0:0:0:0:0:ffff:4179:f89b
65.121.248.156 0:0:0:0:0:ffff:4179:f89c
65.121.248.157 0:0:0:0:0:ffff:4179:f89d
65.121.248.158 0:0:0:0:0:ffff:4179:f89e
65.121.248.159 0:0:0:0:0:ffff:4179:f89f
65.121.248.160 0:0:0:0:0:ffff:4179:f8a0
65.121.248.161 0:0:0:0:0:ffff:4179:f8a1
65.121.248.162 0:0:0:0:0:ffff:4179:f8a2
65.121.248.163 0:0:0:0:0:ffff:4179:f8a3
65.121.248.164 0:0:0:0:0:ffff:4179:f8a4
65.121.248.165 0:0:0:0:0:ffff:4179:f8a5
65.121.248.166 0:0:0:0:0:ffff:4179:f8a6
65.121.248.167 0:0:0:0:0:ffff:4179:f8a7
65.121.248.168 0:0:0:0:0:ffff:4179:f8a8
65.121.248.169 0:0:0:0:0:ffff:4179:f8a9
65.121.248.170 0:0:0:0:0:ffff:4179:f8aa
65.121.248.171 0:0:0:0:0:ffff:4179:f8ab
65.121.248.172 0:0:0:0:0:ffff:4179:f8ac
65.121.248.173 0:0:0:0:0:ffff:4179:f8ad
65.121.248.174 0:0:0:0:0:ffff:4179:f8ae
65.121.248.175 0:0:0:0:0:ffff:4179:f8af
65.121.248.176 0:0:0:0:0:ffff:4179:f8b0
65.121.248.177 0:0:0:0:0:ffff:4179:f8b1
65.121.248.178 0:0:0:0:0:ffff:4179:f8b2
65.121.248.179 0:0:0:0:0:ffff:4179:f8b3
65.121.248.180 0:0:0:0:0:ffff:4179:f8b4


65.121.248.181 0:0:0:0:0:ffff:4179:f8b5
65.121.248.182 0:0:0:0:0:ffff:4179:f8b6
65.121.248.183 0:0:0:0:0:ffff:4179:f8b7
65.121.248.184 0:0:0:0:0:ffff:4179:f8b8
65.121.248.185 0:0:0:0:0:ffff:4179:f8b9
65.121.248.186 0:0:0:0:0:ffff:4179:f8ba
65.121.248.187 0:0:0:0:0:ffff:4179:f8bb
65.121.248.188 0:0:0:0:0:ffff:4179:f8bc
65.121.248.189 0:0:0:0:0:ffff:4179:f8bd
65.121.248.190 0:0:0:0:0:ffff:4179:f8be
65.121.248.191 0:0:0:0:0:ffff:4179:f8bf
65.121.248.192 0:0:0:0:0:ffff:4179:f8c0
65.121.248.193 0:0:0:0:0:ffff:4179:f8c1
65.121.248.194 0:0:0:0:0:ffff:4179:f8c2
65.121.248.195 0:0:0:0:0:ffff:4179:f8c3
65.121.248.196 0:0:0:0:0:ffff:4179:f8c4
65.121.248.197 0:0:0:0:0:ffff:4179:f8c5
65.121.248.198 0:0:0:0:0:ffff:4179:f8c6
65.121.248.199 0:0:0:0:0:ffff:4179:f8c7
65.121.248.200 0:0:0:0:0:ffff:4179:f8c8
65.121.248.201 0:0:0:0:0:ffff:4179:f8c9
65.121.248.202 0:0:0:0:0:ffff:4179:f8ca
65.121.248.203 0:0:0:0:0:ffff:4179:f8cb
65.121.248.204 0:0:0:0:0:ffff:4179:f8cc
65.121.248.205 0:0:0:0:0:ffff:4179:f8cd
65.121.248.206 0:0:0:0:0:ffff:4179:f8ce
65.121.248.207 0:0:0:0:0:ffff:4179:f8cf
65.121.248.208 0:0:0:0:0:ffff:4179:f8d0
65.121.248.209 0:0:0:0:0:ffff:4179:f8d1
65.121.248.210 0:0:0:0:0:ffff:4179:f8d2
65.121.248.211 0:0:0:0:0:ffff:4179:f8d3
65.121.248.212 0:0:0:0:0:ffff:4179:f8d4
65.121.248.213 0:0:0:0:0:ffff:4179:f8d5
65.121.248.214 0:0:0:0:0:ffff:4179:f8d6
65.121.248.215 0:0:0:0:0:ffff:4179:f8d7
65.121.248.216 0:0:0:0:0:ffff:4179:f8d8
65.121.248.217 0:0:0:0:0:ffff:4179:f8d9
65.121.248.218 0:0:0:0:0:ffff:4179:f8da
65.121.248.219 0:0:0:0:0:ffff:4179:f8db
65.121.248.220 0:0:0:0:0:ffff:4179:f8dc
65.121.248.221 0:0:0:0:0:ffff:4179:f8dd
65.121.248.222 0:0:0:0:0:ffff:4179:f8de
65.121.248.223 0:0:0:0:0:ffff:4179:f8df
65.121.248.224 0:0:0:0:0:ffff:4179:f8e0
65.121.248.225 0:0:0:0:0:ffff:4179:f8e1
65.121.248.226 0:0:0:0:0:ffff:4179:f8e2
65.121.248.227 0:0:0:0:0:ffff:4179:f8e3
65.121.248.228 0:0:0:0:0:ffff:4179:f8e4
65.121.248.229 0:0:0:0:0:ffff:4179:f8e5
65.121.248.230 0:0:0:0:0:ffff:4179:f8e6
65.121.248.231 0:0:0:0:0:ffff:4179:f8e7
65.121.248.232 0:0:0:0:0:ffff:4179:f8e8
65.121.248.233 0:0:0:0:0:ffff:4179:f8e9
65.121.248.234 0:0:0:0:0:ffff:4179:f8ea
65.121.248.235 0:0:0:0:0:ffff:4179:f8eb
65.121.248.236 0:0:0:0:0:ffff:4179:f8ec
65.121.248.237 0:0:0:0:0:ffff:4179:f8ed
65.121.248.238 0:0:0:0:0:ffff:4179:f8ee
65.121.248.239 0:0:0:0:0:ffff:4179:f8ef
65.121.248.240 0:0:0:0:0:ffff:4179:f8f0
65.121.248.241 0:0:0:0:0:ffff:4179:f8f1
65.121.248.242 0:0:0:0:0:ffff:4179:f8f2
65.121.248.243 0:0:0:0:0:ffff:4179:f8f3
65.121.248.244 0:0:0:0:0:ffff:4179:f8f4
65.121.248.245 0:0:0:0:0:ffff:4179:f8f5
65.121.248.246 0:0:0:0:0:ffff:4179:f8f6
65.121.248.247 0:0:0:0:0:ffff:4179:f8f7
65.121.248.248 0:0:0:0:0:ffff:4179:f8f8
65.121.248.249 0:0:0:0:0:ffff:4179:f8f9
65.121.248.250 0:0:0:0:0:ffff:4179:f8fa
65.121.248.251 0:0:0:0:0:ffff:4179:f8fb
65.121.248.252 0:0:0:0:0:ffff:4179:f8fc
65.121.248.253 0:0:0:0:0:ffff:4179:f8fd
65.121.248.254 0:0:0:0:0:ffff:4179:f8fe
65.121.248.255 0:0:0:0:0:ffff:4179:f8ff


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.