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
66.76.89.1 0:0:0:0:0:ffff:424c:5901
66.76.89.2 0:0:0:0:0:ffff:424c:5902
66.76.89.3 0:0:0:0:0:ffff:424c:5903
66.76.89.4 0:0:0:0:0:ffff:424c:5904
66.76.89.5 0:0:0:0:0:ffff:424c:5905
66.76.89.6 0:0:0:0:0:ffff:424c:5906
66.76.89.7 0:0:0:0:0:ffff:424c:5907
66.76.89.8 0:0:0:0:0:ffff:424c:5908
66.76.89.9 0:0:0:0:0:ffff:424c:5909
66.76.89.10 0:0:0:0:0:ffff:424c:590a
66.76.89.11 0:0:0:0:0:ffff:424c:590b
66.76.89.12 0:0:0:0:0:ffff:424c:590c
66.76.89.13 0:0:0:0:0:ffff:424c:590d
66.76.89.14 0:0:0:0:0:ffff:424c:590e
66.76.89.15 0:0:0:0:0:ffff:424c:590f
66.76.89.16 0:0:0:0:0:ffff:424c:5910
66.76.89.17 0:0:0:0:0:ffff:424c:5911
66.76.89.18 0:0:0:0:0:ffff:424c:5912
66.76.89.19 0:0:0:0:0:ffff:424c:5913
66.76.89.20 0:0:0:0:0:ffff:424c:5914
66.76.89.21 0:0:0:0:0:ffff:424c:5915
66.76.89.22 0:0:0:0:0:ffff:424c:5916
66.76.89.23 0:0:0:0:0:ffff:424c:5917
66.76.89.24 0:0:0:0:0:ffff:424c:5918
66.76.89.25 0:0:0:0:0:ffff:424c:5919
66.76.89.26 0:0:0:0:0:ffff:424c:591a
66.76.89.27 0:0:0:0:0:ffff:424c:591b
66.76.89.28 0:0:0:0:0:ffff:424c:591c
66.76.89.29 0:0:0:0:0:ffff:424c:591d
66.76.89.30 0:0:0:0:0:ffff:424c:591e
66.76.89.31 0:0:0:0:0:ffff:424c:591f
66.76.89.32 0:0:0:0:0:ffff:424c:5920
66.76.89.33 0:0:0:0:0:ffff:424c:5921
66.76.89.34 0:0:0:0:0:ffff:424c:5922
66.76.89.35 0:0:0:0:0:ffff:424c:5923
66.76.89.36 0:0:0:0:0:ffff:424c:5924
66.76.89.37 0:0:0:0:0:ffff:424c:5925
66.76.89.38 0:0:0:0:0:ffff:424c:5926
66.76.89.39 0:0:0:0:0:ffff:424c:5927
66.76.89.40 0:0:0:0:0:ffff:424c:5928
66.76.89.41 0:0:0:0:0:ffff:424c:5929
66.76.89.42 0:0:0:0:0:ffff:424c:592a
66.76.89.43 0:0:0:0:0:ffff:424c:592b
66.76.89.44 0:0:0:0:0:ffff:424c:592c
66.76.89.45 0:0:0:0:0:ffff:424c:592d
66.76.89.46 0:0:0:0:0:ffff:424c:592e
66.76.89.47 0:0:0:0:0:ffff:424c:592f
66.76.89.48 0:0:0:0:0:ffff:424c:5930
66.76.89.49 0:0:0:0:0:ffff:424c:5931
66.76.89.50 0:0:0:0:0:ffff:424c:5932
66.76.89.51 0:0:0:0:0:ffff:424c:5933
66.76.89.52 0:0:0:0:0:ffff:424c:5934
66.76.89.53 0:0:0:0:0:ffff:424c:5935
66.76.89.54 0:0:0:0:0:ffff:424c:5936
66.76.89.55 0:0:0:0:0:ffff:424c:5937
66.76.89.56 0:0:0:0:0:ffff:424c:5938
66.76.89.57 0:0:0:0:0:ffff:424c:5939
66.76.89.58 0:0:0:0:0:ffff:424c:593a
66.76.89.59 0:0:0:0:0:ffff:424c:593b
66.76.89.60 0:0:0:0:0:ffff:424c:593c


66.76.89.61 0:0:0:0:0:ffff:424c:593d
66.76.89.62 0:0:0:0:0:ffff:424c:593e
66.76.89.63 0:0:0:0:0:ffff:424c:593f
66.76.89.64 0:0:0:0:0:ffff:424c:5940
66.76.89.65 0:0:0:0:0:ffff:424c:5941
66.76.89.66 0:0:0:0:0:ffff:424c:5942
66.76.89.67 0:0:0:0:0:ffff:424c:5943
66.76.89.68 0:0:0:0:0:ffff:424c:5944
66.76.89.69 0:0:0:0:0:ffff:424c:5945
66.76.89.70 0:0:0:0:0:ffff:424c:5946
66.76.89.71 0:0:0:0:0:ffff:424c:5947
66.76.89.72 0:0:0:0:0:ffff:424c:5948
66.76.89.73 0:0:0:0:0:ffff:424c:5949
66.76.89.74 0:0:0:0:0:ffff:424c:594a
66.76.89.75 0:0:0:0:0:ffff:424c:594b
66.76.89.76 0:0:0:0:0:ffff:424c:594c
66.76.89.77 0:0:0:0:0:ffff:424c:594d
66.76.89.78 0:0:0:0:0:ffff:424c:594e
66.76.89.79 0:0:0:0:0:ffff:424c:594f
66.76.89.80 0:0:0:0:0:ffff:424c:5950
66.76.89.81 0:0:0:0:0:ffff:424c:5951
66.76.89.82 0:0:0:0:0:ffff:424c:5952
66.76.89.83 0:0:0:0:0:ffff:424c:5953
66.76.89.84 0:0:0:0:0:ffff:424c:5954
66.76.89.85 0:0:0:0:0:ffff:424c:5955
66.76.89.86 0:0:0:0:0:ffff:424c:5956
66.76.89.87 0:0:0:0:0:ffff:424c:5957
66.76.89.88 0:0:0:0:0:ffff:424c:5958
66.76.89.89 0:0:0:0:0:ffff:424c:5959
66.76.89.90 0:0:0:0:0:ffff:424c:595a
66.76.89.91 0:0:0:0:0:ffff:424c:595b
66.76.89.92 0:0:0:0:0:ffff:424c:595c
66.76.89.93 0:0:0:0:0:ffff:424c:595d
66.76.89.94 0:0:0:0:0:ffff:424c:595e
66.76.89.95 0:0:0:0:0:ffff:424c:595f
66.76.89.96 0:0:0:0:0:ffff:424c:5960
66.76.89.97 0:0:0:0:0:ffff:424c:5961
66.76.89.98 0:0:0:0:0:ffff:424c:5962
66.76.89.99 0:0:0:0:0:ffff:424c:5963
66.76.89.100 0:0:0:0:0:ffff:424c:5964
66.76.89.101 0:0:0:0:0:ffff:424c:5965
66.76.89.102 0:0:0:0:0:ffff:424c:5966
66.76.89.103 0:0:0:0:0:ffff:424c:5967
66.76.89.104 0:0:0:0:0:ffff:424c:5968
66.76.89.105 0:0:0:0:0:ffff:424c:5969
66.76.89.106 0:0:0:0:0:ffff:424c:596a
66.76.89.107 0:0:0:0:0:ffff:424c:596b
66.76.89.108 0:0:0:0:0:ffff:424c:596c
66.76.89.109 0:0:0:0:0:ffff:424c:596d
66.76.89.110 0:0:0:0:0:ffff:424c:596e
66.76.89.111 0:0:0:0:0:ffff:424c:596f
66.76.89.112 0:0:0:0:0:ffff:424c:5970
66.76.89.113 0:0:0:0:0:ffff:424c:5971
66.76.89.114 0:0:0:0:0:ffff:424c:5972
66.76.89.115 0:0:0:0:0:ffff:424c:5973
66.76.89.116 0:0:0:0:0:ffff:424c:5974
66.76.89.117 0:0:0:0:0:ffff:424c:5975
66.76.89.118 0:0:0:0:0:ffff:424c:5976
66.76.89.119 0:0:0:0:0:ffff:424c:5977
66.76.89.120 0:0:0:0:0:ffff:424c:5978


66.76.89.121 0:0:0:0:0:ffff:424c:5979
66.76.89.122 0:0:0:0:0:ffff:424c:597a
66.76.89.123 0:0:0:0:0:ffff:424c:597b
66.76.89.124 0:0:0:0:0:ffff:424c:597c
66.76.89.125 0:0:0:0:0:ffff:424c:597d
66.76.89.126 0:0:0:0:0:ffff:424c:597e
66.76.89.127 0:0:0:0:0:ffff:424c:597f
66.76.89.128 0:0:0:0:0:ffff:424c:5980
66.76.89.129 0:0:0:0:0:ffff:424c:5981
66.76.89.130 0:0:0:0:0:ffff:424c:5982
66.76.89.131 0:0:0:0:0:ffff:424c:5983
66.76.89.132 0:0:0:0:0:ffff:424c:5984
66.76.89.133 0:0:0:0:0:ffff:424c:5985
66.76.89.134 0:0:0:0:0:ffff:424c:5986
66.76.89.135 0:0:0:0:0:ffff:424c:5987
66.76.89.136 0:0:0:0:0:ffff:424c:5988
66.76.89.137 0:0:0:0:0:ffff:424c:5989
66.76.89.138 0:0:0:0:0:ffff:424c:598a
66.76.89.139 0:0:0:0:0:ffff:424c:598b
66.76.89.140 0:0:0:0:0:ffff:424c:598c
66.76.89.141 0:0:0:0:0:ffff:424c:598d
66.76.89.142 0:0:0:0:0:ffff:424c:598e
66.76.89.143 0:0:0:0:0:ffff:424c:598f
66.76.89.144 0:0:0:0:0:ffff:424c:5990
66.76.89.145 0:0:0:0:0:ffff:424c:5991
66.76.89.146 0:0:0:0:0:ffff:424c:5992
66.76.89.147 0:0:0:0:0:ffff:424c:5993
66.76.89.148 0:0:0:0:0:ffff:424c:5994
66.76.89.149 0:0:0:0:0:ffff:424c:5995
66.76.89.150 0:0:0:0:0:ffff:424c:5996
66.76.89.151 0:0:0:0:0:ffff:424c:5997
66.76.89.152 0:0:0:0:0:ffff:424c:5998
66.76.89.153 0:0:0:0:0:ffff:424c:5999
66.76.89.154 0:0:0:0:0:ffff:424c:599a
66.76.89.155 0:0:0:0:0:ffff:424c:599b
66.76.89.156 0:0:0:0:0:ffff:424c:599c
66.76.89.157 0:0:0:0:0:ffff:424c:599d
66.76.89.158 0:0:0:0:0:ffff:424c:599e
66.76.89.159 0:0:0:0:0:ffff:424c:599f
66.76.89.160 0:0:0:0:0:ffff:424c:59a0
66.76.89.161 0:0:0:0:0:ffff:424c:59a1
66.76.89.162 0:0:0:0:0:ffff:424c:59a2
66.76.89.163 0:0:0:0:0:ffff:424c:59a3
66.76.89.164 0:0:0:0:0:ffff:424c:59a4
66.76.89.165 0:0:0:0:0:ffff:424c:59a5
66.76.89.166 0:0:0:0:0:ffff:424c:59a6
66.76.89.167 0:0:0:0:0:ffff:424c:59a7
66.76.89.168 0:0:0:0:0:ffff:424c:59a8
66.76.89.169 0:0:0:0:0:ffff:424c:59a9
66.76.89.170 0:0:0:0:0:ffff:424c:59aa
66.76.89.171 0:0:0:0:0:ffff:424c:59ab
66.76.89.172 0:0:0:0:0:ffff:424c:59ac
66.76.89.173 0:0:0:0:0:ffff:424c:59ad
66.76.89.174 0:0:0:0:0:ffff:424c:59ae
66.76.89.175 0:0:0:0:0:ffff:424c:59af
66.76.89.176 0:0:0:0:0:ffff:424c:59b0
66.76.89.177 0:0:0:0:0:ffff:424c:59b1
66.76.89.178 0:0:0:0:0:ffff:424c:59b2
66.76.89.179 0:0:0:0:0:ffff:424c:59b3
66.76.89.180 0:0:0:0:0:ffff:424c:59b4


66.76.89.181 0:0:0:0:0:ffff:424c:59b5
66.76.89.182 0:0:0:0:0:ffff:424c:59b6
66.76.89.183 0:0:0:0:0:ffff:424c:59b7
66.76.89.184 0:0:0:0:0:ffff:424c:59b8
66.76.89.185 0:0:0:0:0:ffff:424c:59b9
66.76.89.186 0:0:0:0:0:ffff:424c:59ba
66.76.89.187 0:0:0:0:0:ffff:424c:59bb
66.76.89.188 0:0:0:0:0:ffff:424c:59bc
66.76.89.189 0:0:0:0:0:ffff:424c:59bd
66.76.89.190 0:0:0:0:0:ffff:424c:59be
66.76.89.191 0:0:0:0:0:ffff:424c:59bf
66.76.89.192 0:0:0:0:0:ffff:424c:59c0
66.76.89.193 0:0:0:0:0:ffff:424c:59c1
66.76.89.194 0:0:0:0:0:ffff:424c:59c2
66.76.89.195 0:0:0:0:0:ffff:424c:59c3
66.76.89.196 0:0:0:0:0:ffff:424c:59c4
66.76.89.197 0:0:0:0:0:ffff:424c:59c5
66.76.89.198 0:0:0:0:0:ffff:424c:59c6
66.76.89.199 0:0:0:0:0:ffff:424c:59c7
66.76.89.200 0:0:0:0:0:ffff:424c:59c8
66.76.89.201 0:0:0:0:0:ffff:424c:59c9
66.76.89.202 0:0:0:0:0:ffff:424c:59ca
66.76.89.203 0:0:0:0:0:ffff:424c:59cb
66.76.89.204 0:0:0:0:0:ffff:424c:59cc
66.76.89.205 0:0:0:0:0:ffff:424c:59cd
66.76.89.206 0:0:0:0:0:ffff:424c:59ce
66.76.89.207 0:0:0:0:0:ffff:424c:59cf
66.76.89.208 0:0:0:0:0:ffff:424c:59d0
66.76.89.209 0:0:0:0:0:ffff:424c:59d1
66.76.89.210 0:0:0:0:0:ffff:424c:59d2
66.76.89.211 0:0:0:0:0:ffff:424c:59d3
66.76.89.212 0:0:0:0:0:ffff:424c:59d4
66.76.89.213 0:0:0:0:0:ffff:424c:59d5
66.76.89.214 0:0:0:0:0:ffff:424c:59d6
66.76.89.215 0:0:0:0:0:ffff:424c:59d7
66.76.89.216 0:0:0:0:0:ffff:424c:59d8
66.76.89.217 0:0:0:0:0:ffff:424c:59d9
66.76.89.218 0:0:0:0:0:ffff:424c:59da
66.76.89.219 0:0:0:0:0:ffff:424c:59db
66.76.89.220 0:0:0:0:0:ffff:424c:59dc
66.76.89.221 0:0:0:0:0:ffff:424c:59dd
66.76.89.222 0:0:0:0:0:ffff:424c:59de
66.76.89.223 0:0:0:0:0:ffff:424c:59df
66.76.89.224 0:0:0:0:0:ffff:424c:59e0
66.76.89.225 0:0:0:0:0:ffff:424c:59e1
66.76.89.226 0:0:0:0:0:ffff:424c:59e2
66.76.89.227 0:0:0:0:0:ffff:424c:59e3
66.76.89.228 0:0:0:0:0:ffff:424c:59e4
66.76.89.229 0:0:0:0:0:ffff:424c:59e5
66.76.89.230 0:0:0:0:0:ffff:424c:59e6
66.76.89.231 0:0:0:0:0:ffff:424c:59e7
66.76.89.232 0:0:0:0:0:ffff:424c:59e8
66.76.89.233 0:0:0:0:0:ffff:424c:59e9
66.76.89.234 0:0:0:0:0:ffff:424c:59ea
66.76.89.235 0:0:0:0:0:ffff:424c:59eb
66.76.89.236 0:0:0:0:0:ffff:424c:59ec
66.76.89.237 0:0:0:0:0:ffff:424c:59ed
66.76.89.238 0:0:0:0:0:ffff:424c:59ee
66.76.89.239 0:0:0:0:0:ffff:424c:59ef
66.76.89.240 0:0:0:0:0:ffff:424c:59f0
66.76.89.241 0:0:0:0:0:ffff:424c:59f1
66.76.89.242 0:0:0:0:0:ffff:424c:59f2
66.76.89.243 0:0:0:0:0:ffff:424c:59f3
66.76.89.244 0:0:0:0:0:ffff:424c:59f4
66.76.89.245 0:0:0:0:0:ffff:424c:59f5
66.76.89.246 0:0:0:0:0:ffff:424c:59f6
66.76.89.247 0:0:0:0:0:ffff:424c:59f7
66.76.89.248 0:0:0:0:0:ffff:424c:59f8
66.76.89.249 0:0:0:0:0:ffff:424c:59f9
66.76.89.250 0:0:0:0:0:ffff:424c:59fa
66.76.89.251 0:0:0:0:0:ffff:424c:59fb
66.76.89.252 0:0:0:0:0:ffff:424c:59fc
66.76.89.253 0:0:0:0:0:ffff:424c:59fd
66.76.89.254 0:0:0:0:0:ffff:424c:59fe
66.76.89.255 0:0:0:0:0:ffff:424c:59ff


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.