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
21.17.7.1 0:0:0:0:0:ffff:1511:701
21.17.7.2 0:0:0:0:0:ffff:1511:702
21.17.7.3 0:0:0:0:0:ffff:1511:703
21.17.7.4 0:0:0:0:0:ffff:1511:704
21.17.7.5 0:0:0:0:0:ffff:1511:705
21.17.7.6 0:0:0:0:0:ffff:1511:706
21.17.7.7 0:0:0:0:0:ffff:1511:707
21.17.7.8 0:0:0:0:0:ffff:1511:708
21.17.7.9 0:0:0:0:0:ffff:1511:709
21.17.7.10 0:0:0:0:0:ffff:1511:70a
21.17.7.11 0:0:0:0:0:ffff:1511:70b
21.17.7.12 0:0:0:0:0:ffff:1511:70c
21.17.7.13 0:0:0:0:0:ffff:1511:70d
21.17.7.14 0:0:0:0:0:ffff:1511:70e
21.17.7.15 0:0:0:0:0:ffff:1511:70f
21.17.7.16 0:0:0:0:0:ffff:1511:710
21.17.7.17 0:0:0:0:0:ffff:1511:711
21.17.7.18 0:0:0:0:0:ffff:1511:712
21.17.7.19 0:0:0:0:0:ffff:1511:713
21.17.7.20 0:0:0:0:0:ffff:1511:714
21.17.7.21 0:0:0:0:0:ffff:1511:715
21.17.7.22 0:0:0:0:0:ffff:1511:716
21.17.7.23 0:0:0:0:0:ffff:1511:717
21.17.7.24 0:0:0:0:0:ffff:1511:718
21.17.7.25 0:0:0:0:0:ffff:1511:719
21.17.7.26 0:0:0:0:0:ffff:1511:71a
21.17.7.27 0:0:0:0:0:ffff:1511:71b
21.17.7.28 0:0:0:0:0:ffff:1511:71c
21.17.7.29 0:0:0:0:0:ffff:1511:71d
21.17.7.30 0:0:0:0:0:ffff:1511:71e
21.17.7.31 0:0:0:0:0:ffff:1511:71f
21.17.7.32 0:0:0:0:0:ffff:1511:720
21.17.7.33 0:0:0:0:0:ffff:1511:721
21.17.7.34 0:0:0:0:0:ffff:1511:722
21.17.7.35 0:0:0:0:0:ffff:1511:723
21.17.7.36 0:0:0:0:0:ffff:1511:724
21.17.7.37 0:0:0:0:0:ffff:1511:725
21.17.7.38 0:0:0:0:0:ffff:1511:726
21.17.7.39 0:0:0:0:0:ffff:1511:727
21.17.7.40 0:0:0:0:0:ffff:1511:728
21.17.7.41 0:0:0:0:0:ffff:1511:729
21.17.7.42 0:0:0:0:0:ffff:1511:72a
21.17.7.43 0:0:0:0:0:ffff:1511:72b
21.17.7.44 0:0:0:0:0:ffff:1511:72c
21.17.7.45 0:0:0:0:0:ffff:1511:72d
21.17.7.46 0:0:0:0:0:ffff:1511:72e
21.17.7.47 0:0:0:0:0:ffff:1511:72f
21.17.7.48 0:0:0:0:0:ffff:1511:730
21.17.7.49 0:0:0:0:0:ffff:1511:731
21.17.7.50 0:0:0:0:0:ffff:1511:732
21.17.7.51 0:0:0:0:0:ffff:1511:733
21.17.7.52 0:0:0:0:0:ffff:1511:734
21.17.7.53 0:0:0:0:0:ffff:1511:735
21.17.7.54 0:0:0:0:0:ffff:1511:736
21.17.7.55 0:0:0:0:0:ffff:1511:737
21.17.7.56 0:0:0:0:0:ffff:1511:738
21.17.7.57 0:0:0:0:0:ffff:1511:739
21.17.7.58 0:0:0:0:0:ffff:1511:73a
21.17.7.59 0:0:0:0:0:ffff:1511:73b
21.17.7.60 0:0:0:0:0:ffff:1511:73c


21.17.7.61 0:0:0:0:0:ffff:1511:73d
21.17.7.62 0:0:0:0:0:ffff:1511:73e
21.17.7.63 0:0:0:0:0:ffff:1511:73f
21.17.7.64 0:0:0:0:0:ffff:1511:740
21.17.7.65 0:0:0:0:0:ffff:1511:741
21.17.7.66 0:0:0:0:0:ffff:1511:742
21.17.7.67 0:0:0:0:0:ffff:1511:743
21.17.7.68 0:0:0:0:0:ffff:1511:744
21.17.7.69 0:0:0:0:0:ffff:1511:745
21.17.7.70 0:0:0:0:0:ffff:1511:746
21.17.7.71 0:0:0:0:0:ffff:1511:747
21.17.7.72 0:0:0:0:0:ffff:1511:748
21.17.7.73 0:0:0:0:0:ffff:1511:749
21.17.7.74 0:0:0:0:0:ffff:1511:74a
21.17.7.75 0:0:0:0:0:ffff:1511:74b
21.17.7.76 0:0:0:0:0:ffff:1511:74c
21.17.7.77 0:0:0:0:0:ffff:1511:74d
21.17.7.78 0:0:0:0:0:ffff:1511:74e
21.17.7.79 0:0:0:0:0:ffff:1511:74f
21.17.7.80 0:0:0:0:0:ffff:1511:750
21.17.7.81 0:0:0:0:0:ffff:1511:751
21.17.7.82 0:0:0:0:0:ffff:1511:752
21.17.7.83 0:0:0:0:0:ffff:1511:753
21.17.7.84 0:0:0:0:0:ffff:1511:754
21.17.7.85 0:0:0:0:0:ffff:1511:755
21.17.7.86 0:0:0:0:0:ffff:1511:756
21.17.7.87 0:0:0:0:0:ffff:1511:757
21.17.7.88 0:0:0:0:0:ffff:1511:758
21.17.7.89 0:0:0:0:0:ffff:1511:759
21.17.7.90 0:0:0:0:0:ffff:1511:75a
21.17.7.91 0:0:0:0:0:ffff:1511:75b
21.17.7.92 0:0:0:0:0:ffff:1511:75c
21.17.7.93 0:0:0:0:0:ffff:1511:75d
21.17.7.94 0:0:0:0:0:ffff:1511:75e
21.17.7.95 0:0:0:0:0:ffff:1511:75f
21.17.7.96 0:0:0:0:0:ffff:1511:760
21.17.7.97 0:0:0:0:0:ffff:1511:761
21.17.7.98 0:0:0:0:0:ffff:1511:762
21.17.7.99 0:0:0:0:0:ffff:1511:763
21.17.7.100 0:0:0:0:0:ffff:1511:764
21.17.7.101 0:0:0:0:0:ffff:1511:765
21.17.7.102 0:0:0:0:0:ffff:1511:766
21.17.7.103 0:0:0:0:0:ffff:1511:767
21.17.7.104 0:0:0:0:0:ffff:1511:768
21.17.7.105 0:0:0:0:0:ffff:1511:769
21.17.7.106 0:0:0:0:0:ffff:1511:76a
21.17.7.107 0:0:0:0:0:ffff:1511:76b
21.17.7.108 0:0:0:0:0:ffff:1511:76c
21.17.7.109 0:0:0:0:0:ffff:1511:76d
21.17.7.110 0:0:0:0:0:ffff:1511:76e
21.17.7.111 0:0:0:0:0:ffff:1511:76f
21.17.7.112 0:0:0:0:0:ffff:1511:770
21.17.7.113 0:0:0:0:0:ffff:1511:771
21.17.7.114 0:0:0:0:0:ffff:1511:772
21.17.7.115 0:0:0:0:0:ffff:1511:773
21.17.7.116 0:0:0:0:0:ffff:1511:774
21.17.7.117 0:0:0:0:0:ffff:1511:775
21.17.7.118 0:0:0:0:0:ffff:1511:776
21.17.7.119 0:0:0:0:0:ffff:1511:777
21.17.7.120 0:0:0:0:0:ffff:1511:778


21.17.7.121 0:0:0:0:0:ffff:1511:779
21.17.7.122 0:0:0:0:0:ffff:1511:77a
21.17.7.123 0:0:0:0:0:ffff:1511:77b
21.17.7.124 0:0:0:0:0:ffff:1511:77c
21.17.7.125 0:0:0:0:0:ffff:1511:77d
21.17.7.126 0:0:0:0:0:ffff:1511:77e
21.17.7.127 0:0:0:0:0:ffff:1511:77f
21.17.7.128 0:0:0:0:0:ffff:1511:780
21.17.7.129 0:0:0:0:0:ffff:1511:781
21.17.7.130 0:0:0:0:0:ffff:1511:782
21.17.7.131 0:0:0:0:0:ffff:1511:783
21.17.7.132 0:0:0:0:0:ffff:1511:784
21.17.7.133 0:0:0:0:0:ffff:1511:785
21.17.7.134 0:0:0:0:0:ffff:1511:786
21.17.7.135 0:0:0:0:0:ffff:1511:787
21.17.7.136 0:0:0:0:0:ffff:1511:788
21.17.7.137 0:0:0:0:0:ffff:1511:789
21.17.7.138 0:0:0:0:0:ffff:1511:78a
21.17.7.139 0:0:0:0:0:ffff:1511:78b
21.17.7.140 0:0:0:0:0:ffff:1511:78c
21.17.7.141 0:0:0:0:0:ffff:1511:78d
21.17.7.142 0:0:0:0:0:ffff:1511:78e
21.17.7.143 0:0:0:0:0:ffff:1511:78f
21.17.7.144 0:0:0:0:0:ffff:1511:790
21.17.7.145 0:0:0:0:0:ffff:1511:791
21.17.7.146 0:0:0:0:0:ffff:1511:792
21.17.7.147 0:0:0:0:0:ffff:1511:793
21.17.7.148 0:0:0:0:0:ffff:1511:794
21.17.7.149 0:0:0:0:0:ffff:1511:795
21.17.7.150 0:0:0:0:0:ffff:1511:796
21.17.7.151 0:0:0:0:0:ffff:1511:797
21.17.7.152 0:0:0:0:0:ffff:1511:798
21.17.7.153 0:0:0:0:0:ffff:1511:799
21.17.7.154 0:0:0:0:0:ffff:1511:79a
21.17.7.155 0:0:0:0:0:ffff:1511:79b
21.17.7.156 0:0:0:0:0:ffff:1511:79c
21.17.7.157 0:0:0:0:0:ffff:1511:79d
21.17.7.158 0:0:0:0:0:ffff:1511:79e
21.17.7.159 0:0:0:0:0:ffff:1511:79f
21.17.7.160 0:0:0:0:0:ffff:1511:7a0
21.17.7.161 0:0:0:0:0:ffff:1511:7a1
21.17.7.162 0:0:0:0:0:ffff:1511:7a2
21.17.7.163 0:0:0:0:0:ffff:1511:7a3
21.17.7.164 0:0:0:0:0:ffff:1511:7a4
21.17.7.165 0:0:0:0:0:ffff:1511:7a5
21.17.7.166 0:0:0:0:0:ffff:1511:7a6
21.17.7.167 0:0:0:0:0:ffff:1511:7a7
21.17.7.168 0:0:0:0:0:ffff:1511:7a8
21.17.7.169 0:0:0:0:0:ffff:1511:7a9
21.17.7.170 0:0:0:0:0:ffff:1511:7aa
21.17.7.171 0:0:0:0:0:ffff:1511:7ab
21.17.7.172 0:0:0:0:0:ffff:1511:7ac
21.17.7.173 0:0:0:0:0:ffff:1511:7ad
21.17.7.174 0:0:0:0:0:ffff:1511:7ae
21.17.7.175 0:0:0:0:0:ffff:1511:7af
21.17.7.176 0:0:0:0:0:ffff:1511:7b0
21.17.7.177 0:0:0:0:0:ffff:1511:7b1
21.17.7.178 0:0:0:0:0:ffff:1511:7b2
21.17.7.179 0:0:0:0:0:ffff:1511:7b3
21.17.7.180 0:0:0:0:0:ffff:1511:7b4


21.17.7.181 0:0:0:0:0:ffff:1511:7b5
21.17.7.182 0:0:0:0:0:ffff:1511:7b6
21.17.7.183 0:0:0:0:0:ffff:1511:7b7
21.17.7.184 0:0:0:0:0:ffff:1511:7b8
21.17.7.185 0:0:0:0:0:ffff:1511:7b9
21.17.7.186 0:0:0:0:0:ffff:1511:7ba
21.17.7.187 0:0:0:0:0:ffff:1511:7bb
21.17.7.188 0:0:0:0:0:ffff:1511:7bc
21.17.7.189 0:0:0:0:0:ffff:1511:7bd
21.17.7.190 0:0:0:0:0:ffff:1511:7be
21.17.7.191 0:0:0:0:0:ffff:1511:7bf
21.17.7.192 0:0:0:0:0:ffff:1511:7c0
21.17.7.193 0:0:0:0:0:ffff:1511:7c1
21.17.7.194 0:0:0:0:0:ffff:1511:7c2
21.17.7.195 0:0:0:0:0:ffff:1511:7c3
21.17.7.196 0:0:0:0:0:ffff:1511:7c4
21.17.7.197 0:0:0:0:0:ffff:1511:7c5
21.17.7.198 0:0:0:0:0:ffff:1511:7c6
21.17.7.199 0:0:0:0:0:ffff:1511:7c7
21.17.7.200 0:0:0:0:0:ffff:1511:7c8
21.17.7.201 0:0:0:0:0:ffff:1511:7c9
21.17.7.202 0:0:0:0:0:ffff:1511:7ca
21.17.7.203 0:0:0:0:0:ffff:1511:7cb
21.17.7.204 0:0:0:0:0:ffff:1511:7cc
21.17.7.205 0:0:0:0:0:ffff:1511:7cd
21.17.7.206 0:0:0:0:0:ffff:1511:7ce
21.17.7.207 0:0:0:0:0:ffff:1511:7cf
21.17.7.208 0:0:0:0:0:ffff:1511:7d0
21.17.7.209 0:0:0:0:0:ffff:1511:7d1
21.17.7.210 0:0:0:0:0:ffff:1511:7d2
21.17.7.211 0:0:0:0:0:ffff:1511:7d3
21.17.7.212 0:0:0:0:0:ffff:1511:7d4
21.17.7.213 0:0:0:0:0:ffff:1511:7d5
21.17.7.214 0:0:0:0:0:ffff:1511:7d6
21.17.7.215 0:0:0:0:0:ffff:1511:7d7
21.17.7.216 0:0:0:0:0:ffff:1511:7d8
21.17.7.217 0:0:0:0:0:ffff:1511:7d9
21.17.7.218 0:0:0:0:0:ffff:1511:7da
21.17.7.219 0:0:0:0:0:ffff:1511:7db
21.17.7.220 0:0:0:0:0:ffff:1511:7dc
21.17.7.221 0:0:0:0:0:ffff:1511:7dd
21.17.7.222 0:0:0:0:0:ffff:1511:7de
21.17.7.223 0:0:0:0:0:ffff:1511:7df
21.17.7.224 0:0:0:0:0:ffff:1511:7e0
21.17.7.225 0:0:0:0:0:ffff:1511:7e1
21.17.7.226 0:0:0:0:0:ffff:1511:7e2
21.17.7.227 0:0:0:0:0:ffff:1511:7e3
21.17.7.228 0:0:0:0:0:ffff:1511:7e4
21.17.7.229 0:0:0:0:0:ffff:1511:7e5
21.17.7.230 0:0:0:0:0:ffff:1511:7e6
21.17.7.231 0:0:0:0:0:ffff:1511:7e7
21.17.7.232 0:0:0:0:0:ffff:1511:7e8
21.17.7.233 0:0:0:0:0:ffff:1511:7e9
21.17.7.234 0:0:0:0:0:ffff:1511:7ea
21.17.7.235 0:0:0:0:0:ffff:1511:7eb
21.17.7.236 0:0:0:0:0:ffff:1511:7ec
21.17.7.237 0:0:0:0:0:ffff:1511:7ed
21.17.7.238 0:0:0:0:0:ffff:1511:7ee
21.17.7.239 0:0:0:0:0:ffff:1511:7ef
21.17.7.240 0:0:0:0:0:ffff:1511:7f0
21.17.7.241 0:0:0:0:0:ffff:1511:7f1
21.17.7.242 0:0:0:0:0:ffff:1511:7f2
21.17.7.243 0:0:0:0:0:ffff:1511:7f3
21.17.7.244 0:0:0:0:0:ffff:1511:7f4
21.17.7.245 0:0:0:0:0:ffff:1511:7f5
21.17.7.246 0:0:0:0:0:ffff:1511:7f6
21.17.7.247 0:0:0:0:0:ffff:1511:7f7
21.17.7.248 0:0:0:0:0:ffff:1511:7f8
21.17.7.249 0:0:0:0:0:ffff:1511:7f9
21.17.7.250 0:0:0:0:0:ffff:1511:7fa
21.17.7.251 0:0:0:0:0:ffff:1511:7fb
21.17.7.252 0:0:0:0:0:ffff:1511:7fc
21.17.7.253 0:0:0:0:0:ffff:1511:7fd
21.17.7.254 0:0:0:0:0:ffff:1511:7fe
21.17.7.255 0:0:0:0:0:ffff:1511:7ff


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.