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
75.237.121.1 0:0:0:0:0:ffff:4bed:7901
75.237.121.2 0:0:0:0:0:ffff:4bed:7902
75.237.121.3 0:0:0:0:0:ffff:4bed:7903
75.237.121.4 0:0:0:0:0:ffff:4bed:7904
75.237.121.5 0:0:0:0:0:ffff:4bed:7905
75.237.121.6 0:0:0:0:0:ffff:4bed:7906
75.237.121.7 0:0:0:0:0:ffff:4bed:7907
75.237.121.8 0:0:0:0:0:ffff:4bed:7908
75.237.121.9 0:0:0:0:0:ffff:4bed:7909
75.237.121.10 0:0:0:0:0:ffff:4bed:790a
75.237.121.11 0:0:0:0:0:ffff:4bed:790b
75.237.121.12 0:0:0:0:0:ffff:4bed:790c
75.237.121.13 0:0:0:0:0:ffff:4bed:790d
75.237.121.14 0:0:0:0:0:ffff:4bed:790e
75.237.121.15 0:0:0:0:0:ffff:4bed:790f
75.237.121.16 0:0:0:0:0:ffff:4bed:7910
75.237.121.17 0:0:0:0:0:ffff:4bed:7911
75.237.121.18 0:0:0:0:0:ffff:4bed:7912
75.237.121.19 0:0:0:0:0:ffff:4bed:7913
75.237.121.20 0:0:0:0:0:ffff:4bed:7914
75.237.121.21 0:0:0:0:0:ffff:4bed:7915
75.237.121.22 0:0:0:0:0:ffff:4bed:7916
75.237.121.23 0:0:0:0:0:ffff:4bed:7917
75.237.121.24 0:0:0:0:0:ffff:4bed:7918
75.237.121.25 0:0:0:0:0:ffff:4bed:7919
75.237.121.26 0:0:0:0:0:ffff:4bed:791a
75.237.121.27 0:0:0:0:0:ffff:4bed:791b
75.237.121.28 0:0:0:0:0:ffff:4bed:791c
75.237.121.29 0:0:0:0:0:ffff:4bed:791d
75.237.121.30 0:0:0:0:0:ffff:4bed:791e
75.237.121.31 0:0:0:0:0:ffff:4bed:791f
75.237.121.32 0:0:0:0:0:ffff:4bed:7920
75.237.121.33 0:0:0:0:0:ffff:4bed:7921
75.237.121.34 0:0:0:0:0:ffff:4bed:7922
75.237.121.35 0:0:0:0:0:ffff:4bed:7923
75.237.121.36 0:0:0:0:0:ffff:4bed:7924
75.237.121.37 0:0:0:0:0:ffff:4bed:7925
75.237.121.38 0:0:0:0:0:ffff:4bed:7926
75.237.121.39 0:0:0:0:0:ffff:4bed:7927
75.237.121.40 0:0:0:0:0:ffff:4bed:7928
75.237.121.41 0:0:0:0:0:ffff:4bed:7929
75.237.121.42 0:0:0:0:0:ffff:4bed:792a
75.237.121.43 0:0:0:0:0:ffff:4bed:792b
75.237.121.44 0:0:0:0:0:ffff:4bed:792c
75.237.121.45 0:0:0:0:0:ffff:4bed:792d
75.237.121.46 0:0:0:0:0:ffff:4bed:792e
75.237.121.47 0:0:0:0:0:ffff:4bed:792f
75.237.121.48 0:0:0:0:0:ffff:4bed:7930
75.237.121.49 0:0:0:0:0:ffff:4bed:7931
75.237.121.50 0:0:0:0:0:ffff:4bed:7932
75.237.121.51 0:0:0:0:0:ffff:4bed:7933
75.237.121.52 0:0:0:0:0:ffff:4bed:7934
75.237.121.53 0:0:0:0:0:ffff:4bed:7935
75.237.121.54 0:0:0:0:0:ffff:4bed:7936
75.237.121.55 0:0:0:0:0:ffff:4bed:7937
75.237.121.56 0:0:0:0:0:ffff:4bed:7938
75.237.121.57 0:0:0:0:0:ffff:4bed:7939
75.237.121.58 0:0:0:0:0:ffff:4bed:793a
75.237.121.59 0:0:0:0:0:ffff:4bed:793b
75.237.121.60 0:0:0:0:0:ffff:4bed:793c


75.237.121.61 0:0:0:0:0:ffff:4bed:793d
75.237.121.62 0:0:0:0:0:ffff:4bed:793e
75.237.121.63 0:0:0:0:0:ffff:4bed:793f
75.237.121.64 0:0:0:0:0:ffff:4bed:7940
75.237.121.65 0:0:0:0:0:ffff:4bed:7941
75.237.121.66 0:0:0:0:0:ffff:4bed:7942
75.237.121.67 0:0:0:0:0:ffff:4bed:7943
75.237.121.68 0:0:0:0:0:ffff:4bed:7944
75.237.121.69 0:0:0:0:0:ffff:4bed:7945
75.237.121.70 0:0:0:0:0:ffff:4bed:7946
75.237.121.71 0:0:0:0:0:ffff:4bed:7947
75.237.121.72 0:0:0:0:0:ffff:4bed:7948
75.237.121.73 0:0:0:0:0:ffff:4bed:7949
75.237.121.74 0:0:0:0:0:ffff:4bed:794a
75.237.121.75 0:0:0:0:0:ffff:4bed:794b
75.237.121.76 0:0:0:0:0:ffff:4bed:794c
75.237.121.77 0:0:0:0:0:ffff:4bed:794d
75.237.121.78 0:0:0:0:0:ffff:4bed:794e
75.237.121.79 0:0:0:0:0:ffff:4bed:794f
75.237.121.80 0:0:0:0:0:ffff:4bed:7950
75.237.121.81 0:0:0:0:0:ffff:4bed:7951
75.237.121.82 0:0:0:0:0:ffff:4bed:7952
75.237.121.83 0:0:0:0:0:ffff:4bed:7953
75.237.121.84 0:0:0:0:0:ffff:4bed:7954
75.237.121.85 0:0:0:0:0:ffff:4bed:7955
75.237.121.86 0:0:0:0:0:ffff:4bed:7956
75.237.121.87 0:0:0:0:0:ffff:4bed:7957
75.237.121.88 0:0:0:0:0:ffff:4bed:7958
75.237.121.89 0:0:0:0:0:ffff:4bed:7959
75.237.121.90 0:0:0:0:0:ffff:4bed:795a
75.237.121.91 0:0:0:0:0:ffff:4bed:795b
75.237.121.92 0:0:0:0:0:ffff:4bed:795c
75.237.121.93 0:0:0:0:0:ffff:4bed:795d
75.237.121.94 0:0:0:0:0:ffff:4bed:795e
75.237.121.95 0:0:0:0:0:ffff:4bed:795f
75.237.121.96 0:0:0:0:0:ffff:4bed:7960
75.237.121.97 0:0:0:0:0:ffff:4bed:7961
75.237.121.98 0:0:0:0:0:ffff:4bed:7962
75.237.121.99 0:0:0:0:0:ffff:4bed:7963
75.237.121.100 0:0:0:0:0:ffff:4bed:7964
75.237.121.101 0:0:0:0:0:ffff:4bed:7965
75.237.121.102 0:0:0:0:0:ffff:4bed:7966
75.237.121.103 0:0:0:0:0:ffff:4bed:7967
75.237.121.104 0:0:0:0:0:ffff:4bed:7968
75.237.121.105 0:0:0:0:0:ffff:4bed:7969
75.237.121.106 0:0:0:0:0:ffff:4bed:796a
75.237.121.107 0:0:0:0:0:ffff:4bed:796b
75.237.121.108 0:0:0:0:0:ffff:4bed:796c
75.237.121.109 0:0:0:0:0:ffff:4bed:796d
75.237.121.110 0:0:0:0:0:ffff:4bed:796e
75.237.121.111 0:0:0:0:0:ffff:4bed:796f
75.237.121.112 0:0:0:0:0:ffff:4bed:7970
75.237.121.113 0:0:0:0:0:ffff:4bed:7971
75.237.121.114 0:0:0:0:0:ffff:4bed:7972
75.237.121.115 0:0:0:0:0:ffff:4bed:7973
75.237.121.116 0:0:0:0:0:ffff:4bed:7974
75.237.121.117 0:0:0:0:0:ffff:4bed:7975
75.237.121.118 0:0:0:0:0:ffff:4bed:7976
75.237.121.119 0:0:0:0:0:ffff:4bed:7977
75.237.121.120 0:0:0:0:0:ffff:4bed:7978


75.237.121.121 0:0:0:0:0:ffff:4bed:7979
75.237.121.122 0:0:0:0:0:ffff:4bed:797a
75.237.121.123 0:0:0:0:0:ffff:4bed:797b
75.237.121.124 0:0:0:0:0:ffff:4bed:797c
75.237.121.125 0:0:0:0:0:ffff:4bed:797d
75.237.121.126 0:0:0:0:0:ffff:4bed:797e
75.237.121.127 0:0:0:0:0:ffff:4bed:797f
75.237.121.128 0:0:0:0:0:ffff:4bed:7980
75.237.121.129 0:0:0:0:0:ffff:4bed:7981
75.237.121.130 0:0:0:0:0:ffff:4bed:7982
75.237.121.131 0:0:0:0:0:ffff:4bed:7983
75.237.121.132 0:0:0:0:0:ffff:4bed:7984
75.237.121.133 0:0:0:0:0:ffff:4bed:7985
75.237.121.134 0:0:0:0:0:ffff:4bed:7986
75.237.121.135 0:0:0:0:0:ffff:4bed:7987
75.237.121.136 0:0:0:0:0:ffff:4bed:7988
75.237.121.137 0:0:0:0:0:ffff:4bed:7989
75.237.121.138 0:0:0:0:0:ffff:4bed:798a
75.237.121.139 0:0:0:0:0:ffff:4bed:798b
75.237.121.140 0:0:0:0:0:ffff:4bed:798c
75.237.121.141 0:0:0:0:0:ffff:4bed:798d
75.237.121.142 0:0:0:0:0:ffff:4bed:798e
75.237.121.143 0:0:0:0:0:ffff:4bed:798f
75.237.121.144 0:0:0:0:0:ffff:4bed:7990
75.237.121.145 0:0:0:0:0:ffff:4bed:7991
75.237.121.146 0:0:0:0:0:ffff:4bed:7992
75.237.121.147 0:0:0:0:0:ffff:4bed:7993
75.237.121.148 0:0:0:0:0:ffff:4bed:7994
75.237.121.149 0:0:0:0:0:ffff:4bed:7995
75.237.121.150 0:0:0:0:0:ffff:4bed:7996
75.237.121.151 0:0:0:0:0:ffff:4bed:7997
75.237.121.152 0:0:0:0:0:ffff:4bed:7998
75.237.121.153 0:0:0:0:0:ffff:4bed:7999
75.237.121.154 0:0:0:0:0:ffff:4bed:799a
75.237.121.155 0:0:0:0:0:ffff:4bed:799b
75.237.121.156 0:0:0:0:0:ffff:4bed:799c
75.237.121.157 0:0:0:0:0:ffff:4bed:799d
75.237.121.158 0:0:0:0:0:ffff:4bed:799e
75.237.121.159 0:0:0:0:0:ffff:4bed:799f
75.237.121.160 0:0:0:0:0:ffff:4bed:79a0
75.237.121.161 0:0:0:0:0:ffff:4bed:79a1
75.237.121.162 0:0:0:0:0:ffff:4bed:79a2
75.237.121.163 0:0:0:0:0:ffff:4bed:79a3
75.237.121.164 0:0:0:0:0:ffff:4bed:79a4
75.237.121.165 0:0:0:0:0:ffff:4bed:79a5
75.237.121.166 0:0:0:0:0:ffff:4bed:79a6
75.237.121.167 0:0:0:0:0:ffff:4bed:79a7
75.237.121.168 0:0:0:0:0:ffff:4bed:79a8
75.237.121.169 0:0:0:0:0:ffff:4bed:79a9
75.237.121.170 0:0:0:0:0:ffff:4bed:79aa
75.237.121.171 0:0:0:0:0:ffff:4bed:79ab
75.237.121.172 0:0:0:0:0:ffff:4bed:79ac
75.237.121.173 0:0:0:0:0:ffff:4bed:79ad
75.237.121.174 0:0:0:0:0:ffff:4bed:79ae
75.237.121.175 0:0:0:0:0:ffff:4bed:79af
75.237.121.176 0:0:0:0:0:ffff:4bed:79b0
75.237.121.177 0:0:0:0:0:ffff:4bed:79b1
75.237.121.178 0:0:0:0:0:ffff:4bed:79b2
75.237.121.179 0:0:0:0:0:ffff:4bed:79b3
75.237.121.180 0:0:0:0:0:ffff:4bed:79b4


75.237.121.181 0:0:0:0:0:ffff:4bed:79b5
75.237.121.182 0:0:0:0:0:ffff:4bed:79b6
75.237.121.183 0:0:0:0:0:ffff:4bed:79b7
75.237.121.184 0:0:0:0:0:ffff:4bed:79b8
75.237.121.185 0:0:0:0:0:ffff:4bed:79b9
75.237.121.186 0:0:0:0:0:ffff:4bed:79ba
75.237.121.187 0:0:0:0:0:ffff:4bed:79bb
75.237.121.188 0:0:0:0:0:ffff:4bed:79bc
75.237.121.189 0:0:0:0:0:ffff:4bed:79bd
75.237.121.190 0:0:0:0:0:ffff:4bed:79be
75.237.121.191 0:0:0:0:0:ffff:4bed:79bf
75.237.121.192 0:0:0:0:0:ffff:4bed:79c0
75.237.121.193 0:0:0:0:0:ffff:4bed:79c1
75.237.121.194 0:0:0:0:0:ffff:4bed:79c2
75.237.121.195 0:0:0:0:0:ffff:4bed:79c3
75.237.121.196 0:0:0:0:0:ffff:4bed:79c4
75.237.121.197 0:0:0:0:0:ffff:4bed:79c5
75.237.121.198 0:0:0:0:0:ffff:4bed:79c6
75.237.121.199 0:0:0:0:0:ffff:4bed:79c7
75.237.121.200 0:0:0:0:0:ffff:4bed:79c8
75.237.121.201 0:0:0:0:0:ffff:4bed:79c9
75.237.121.202 0:0:0:0:0:ffff:4bed:79ca
75.237.121.203 0:0:0:0:0:ffff:4bed:79cb
75.237.121.204 0:0:0:0:0:ffff:4bed:79cc
75.237.121.205 0:0:0:0:0:ffff:4bed:79cd
75.237.121.206 0:0:0:0:0:ffff:4bed:79ce
75.237.121.207 0:0:0:0:0:ffff:4bed:79cf
75.237.121.208 0:0:0:0:0:ffff:4bed:79d0
75.237.121.209 0:0:0:0:0:ffff:4bed:79d1
75.237.121.210 0:0:0:0:0:ffff:4bed:79d2
75.237.121.211 0:0:0:0:0:ffff:4bed:79d3
75.237.121.212 0:0:0:0:0:ffff:4bed:79d4
75.237.121.213 0:0:0:0:0:ffff:4bed:79d5
75.237.121.214 0:0:0:0:0:ffff:4bed:79d6
75.237.121.215 0:0:0:0:0:ffff:4bed:79d7
75.237.121.216 0:0:0:0:0:ffff:4bed:79d8
75.237.121.217 0:0:0:0:0:ffff:4bed:79d9
75.237.121.218 0:0:0:0:0:ffff:4bed:79da
75.237.121.219 0:0:0:0:0:ffff:4bed:79db
75.237.121.220 0:0:0:0:0:ffff:4bed:79dc
75.237.121.221 0:0:0:0:0:ffff:4bed:79dd
75.237.121.222 0:0:0:0:0:ffff:4bed:79de
75.237.121.223 0:0:0:0:0:ffff:4bed:79df
75.237.121.224 0:0:0:0:0:ffff:4bed:79e0
75.237.121.225 0:0:0:0:0:ffff:4bed:79e1
75.237.121.226 0:0:0:0:0:ffff:4bed:79e2
75.237.121.227 0:0:0:0:0:ffff:4bed:79e3
75.237.121.228 0:0:0:0:0:ffff:4bed:79e4
75.237.121.229 0:0:0:0:0:ffff:4bed:79e5
75.237.121.230 0:0:0:0:0:ffff:4bed:79e6
75.237.121.231 0:0:0:0:0:ffff:4bed:79e7
75.237.121.232 0:0:0:0:0:ffff:4bed:79e8
75.237.121.233 0:0:0:0:0:ffff:4bed:79e9
75.237.121.234 0:0:0:0:0:ffff:4bed:79ea
75.237.121.235 0:0:0:0:0:ffff:4bed:79eb
75.237.121.236 0:0:0:0:0:ffff:4bed:79ec
75.237.121.237 0:0:0:0:0:ffff:4bed:79ed
75.237.121.238 0:0:0:0:0:ffff:4bed:79ee
75.237.121.239 0:0:0:0:0:ffff:4bed:79ef
75.237.121.240 0:0:0:0:0:ffff:4bed:79f0
75.237.121.241 0:0:0:0:0:ffff:4bed:79f1
75.237.121.242 0:0:0:0:0:ffff:4bed:79f2
75.237.121.243 0:0:0:0:0:ffff:4bed:79f3
75.237.121.244 0:0:0:0:0:ffff:4bed:79f4
75.237.121.245 0:0:0:0:0:ffff:4bed:79f5
75.237.121.246 0:0:0:0:0:ffff:4bed:79f6
75.237.121.247 0:0:0:0:0:ffff:4bed:79f7
75.237.121.248 0:0:0:0:0:ffff:4bed:79f8
75.237.121.249 0:0:0:0:0:ffff:4bed:79f9
75.237.121.250 0:0:0:0:0:ffff:4bed:79fa
75.237.121.251 0:0:0:0:0:ffff:4bed:79fb
75.237.121.252 0:0:0:0:0:ffff:4bed:79fc
75.237.121.253 0:0:0:0:0:ffff:4bed:79fd
75.237.121.254 0:0:0:0:0:ffff:4bed:79fe
75.237.121.255 0:0:0:0:0:ffff:4bed:79ff


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.