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
72.136.103.1 0:0:0:0:0:ffff:4888:6701
72.136.103.2 0:0:0:0:0:ffff:4888:6702
72.136.103.3 0:0:0:0:0:ffff:4888:6703
72.136.103.4 0:0:0:0:0:ffff:4888:6704
72.136.103.5 0:0:0:0:0:ffff:4888:6705
72.136.103.6 0:0:0:0:0:ffff:4888:6706
72.136.103.7 0:0:0:0:0:ffff:4888:6707
72.136.103.8 0:0:0:0:0:ffff:4888:6708
72.136.103.9 0:0:0:0:0:ffff:4888:6709
72.136.103.10 0:0:0:0:0:ffff:4888:670a
72.136.103.11 0:0:0:0:0:ffff:4888:670b
72.136.103.12 0:0:0:0:0:ffff:4888:670c
72.136.103.13 0:0:0:0:0:ffff:4888:670d
72.136.103.14 0:0:0:0:0:ffff:4888:670e
72.136.103.15 0:0:0:0:0:ffff:4888:670f
72.136.103.16 0:0:0:0:0:ffff:4888:6710
72.136.103.17 0:0:0:0:0:ffff:4888:6711
72.136.103.18 0:0:0:0:0:ffff:4888:6712
72.136.103.19 0:0:0:0:0:ffff:4888:6713
72.136.103.20 0:0:0:0:0:ffff:4888:6714
72.136.103.21 0:0:0:0:0:ffff:4888:6715
72.136.103.22 0:0:0:0:0:ffff:4888:6716
72.136.103.23 0:0:0:0:0:ffff:4888:6717
72.136.103.24 0:0:0:0:0:ffff:4888:6718
72.136.103.25 0:0:0:0:0:ffff:4888:6719
72.136.103.26 0:0:0:0:0:ffff:4888:671a
72.136.103.27 0:0:0:0:0:ffff:4888:671b
72.136.103.28 0:0:0:0:0:ffff:4888:671c
72.136.103.29 0:0:0:0:0:ffff:4888:671d
72.136.103.30 0:0:0:0:0:ffff:4888:671e
72.136.103.31 0:0:0:0:0:ffff:4888:671f
72.136.103.32 0:0:0:0:0:ffff:4888:6720
72.136.103.33 0:0:0:0:0:ffff:4888:6721
72.136.103.34 0:0:0:0:0:ffff:4888:6722
72.136.103.35 0:0:0:0:0:ffff:4888:6723
72.136.103.36 0:0:0:0:0:ffff:4888:6724
72.136.103.37 0:0:0:0:0:ffff:4888:6725
72.136.103.38 0:0:0:0:0:ffff:4888:6726
72.136.103.39 0:0:0:0:0:ffff:4888:6727
72.136.103.40 0:0:0:0:0:ffff:4888:6728
72.136.103.41 0:0:0:0:0:ffff:4888:6729
72.136.103.42 0:0:0:0:0:ffff:4888:672a
72.136.103.43 0:0:0:0:0:ffff:4888:672b
72.136.103.44 0:0:0:0:0:ffff:4888:672c
72.136.103.45 0:0:0:0:0:ffff:4888:672d
72.136.103.46 0:0:0:0:0:ffff:4888:672e
72.136.103.47 0:0:0:0:0:ffff:4888:672f
72.136.103.48 0:0:0:0:0:ffff:4888:6730
72.136.103.49 0:0:0:0:0:ffff:4888:6731
72.136.103.50 0:0:0:0:0:ffff:4888:6732
72.136.103.51 0:0:0:0:0:ffff:4888:6733
72.136.103.52 0:0:0:0:0:ffff:4888:6734
72.136.103.53 0:0:0:0:0:ffff:4888:6735
72.136.103.54 0:0:0:0:0:ffff:4888:6736
72.136.103.55 0:0:0:0:0:ffff:4888:6737
72.136.103.56 0:0:0:0:0:ffff:4888:6738
72.136.103.57 0:0:0:0:0:ffff:4888:6739
72.136.103.58 0:0:0:0:0:ffff:4888:673a
72.136.103.59 0:0:0:0:0:ffff:4888:673b
72.136.103.60 0:0:0:0:0:ffff:4888:673c


72.136.103.61 0:0:0:0:0:ffff:4888:673d
72.136.103.62 0:0:0:0:0:ffff:4888:673e
72.136.103.63 0:0:0:0:0:ffff:4888:673f
72.136.103.64 0:0:0:0:0:ffff:4888:6740
72.136.103.65 0:0:0:0:0:ffff:4888:6741
72.136.103.66 0:0:0:0:0:ffff:4888:6742
72.136.103.67 0:0:0:0:0:ffff:4888:6743
72.136.103.68 0:0:0:0:0:ffff:4888:6744
72.136.103.69 0:0:0:0:0:ffff:4888:6745
72.136.103.70 0:0:0:0:0:ffff:4888:6746
72.136.103.71 0:0:0:0:0:ffff:4888:6747
72.136.103.72 0:0:0:0:0:ffff:4888:6748
72.136.103.73 0:0:0:0:0:ffff:4888:6749
72.136.103.74 0:0:0:0:0:ffff:4888:674a
72.136.103.75 0:0:0:0:0:ffff:4888:674b
72.136.103.76 0:0:0:0:0:ffff:4888:674c
72.136.103.77 0:0:0:0:0:ffff:4888:674d
72.136.103.78 0:0:0:0:0:ffff:4888:674e
72.136.103.79 0:0:0:0:0:ffff:4888:674f
72.136.103.80 0:0:0:0:0:ffff:4888:6750
72.136.103.81 0:0:0:0:0:ffff:4888:6751
72.136.103.82 0:0:0:0:0:ffff:4888:6752
72.136.103.83 0:0:0:0:0:ffff:4888:6753
72.136.103.84 0:0:0:0:0:ffff:4888:6754
72.136.103.85 0:0:0:0:0:ffff:4888:6755
72.136.103.86 0:0:0:0:0:ffff:4888:6756
72.136.103.87 0:0:0:0:0:ffff:4888:6757
72.136.103.88 0:0:0:0:0:ffff:4888:6758
72.136.103.89 0:0:0:0:0:ffff:4888:6759
72.136.103.90 0:0:0:0:0:ffff:4888:675a
72.136.103.91 0:0:0:0:0:ffff:4888:675b
72.136.103.92 0:0:0:0:0:ffff:4888:675c
72.136.103.93 0:0:0:0:0:ffff:4888:675d
72.136.103.94 0:0:0:0:0:ffff:4888:675e
72.136.103.95 0:0:0:0:0:ffff:4888:675f
72.136.103.96 0:0:0:0:0:ffff:4888:6760
72.136.103.97 0:0:0:0:0:ffff:4888:6761
72.136.103.98 0:0:0:0:0:ffff:4888:6762
72.136.103.99 0:0:0:0:0:ffff:4888:6763
72.136.103.100 0:0:0:0:0:ffff:4888:6764
72.136.103.101 0:0:0:0:0:ffff:4888:6765
72.136.103.102 0:0:0:0:0:ffff:4888:6766
72.136.103.103 0:0:0:0:0:ffff:4888:6767
72.136.103.104 0:0:0:0:0:ffff:4888:6768
72.136.103.105 0:0:0:0:0:ffff:4888:6769
72.136.103.106 0:0:0:0:0:ffff:4888:676a
72.136.103.107 0:0:0:0:0:ffff:4888:676b
72.136.103.108 0:0:0:0:0:ffff:4888:676c
72.136.103.109 0:0:0:0:0:ffff:4888:676d
72.136.103.110 0:0:0:0:0:ffff:4888:676e
72.136.103.111 0:0:0:0:0:ffff:4888:676f
72.136.103.112 0:0:0:0:0:ffff:4888:6770
72.136.103.113 0:0:0:0:0:ffff:4888:6771
72.136.103.114 0:0:0:0:0:ffff:4888:6772
72.136.103.115 0:0:0:0:0:ffff:4888:6773
72.136.103.116 0:0:0:0:0:ffff:4888:6774
72.136.103.117 0:0:0:0:0:ffff:4888:6775
72.136.103.118 0:0:0:0:0:ffff:4888:6776
72.136.103.119 0:0:0:0:0:ffff:4888:6777
72.136.103.120 0:0:0:0:0:ffff:4888:6778


72.136.103.121 0:0:0:0:0:ffff:4888:6779
72.136.103.122 0:0:0:0:0:ffff:4888:677a
72.136.103.123 0:0:0:0:0:ffff:4888:677b
72.136.103.124 0:0:0:0:0:ffff:4888:677c
72.136.103.125 0:0:0:0:0:ffff:4888:677d
72.136.103.126 0:0:0:0:0:ffff:4888:677e
72.136.103.127 0:0:0:0:0:ffff:4888:677f
72.136.103.128 0:0:0:0:0:ffff:4888:6780
72.136.103.129 0:0:0:0:0:ffff:4888:6781
72.136.103.130 0:0:0:0:0:ffff:4888:6782
72.136.103.131 0:0:0:0:0:ffff:4888:6783
72.136.103.132 0:0:0:0:0:ffff:4888:6784
72.136.103.133 0:0:0:0:0:ffff:4888:6785
72.136.103.134 0:0:0:0:0:ffff:4888:6786
72.136.103.135 0:0:0:0:0:ffff:4888:6787
72.136.103.136 0:0:0:0:0:ffff:4888:6788
72.136.103.137 0:0:0:0:0:ffff:4888:6789
72.136.103.138 0:0:0:0:0:ffff:4888:678a
72.136.103.139 0:0:0:0:0:ffff:4888:678b
72.136.103.140 0:0:0:0:0:ffff:4888:678c
72.136.103.141 0:0:0:0:0:ffff:4888:678d
72.136.103.142 0:0:0:0:0:ffff:4888:678e
72.136.103.143 0:0:0:0:0:ffff:4888:678f
72.136.103.144 0:0:0:0:0:ffff:4888:6790
72.136.103.145 0:0:0:0:0:ffff:4888:6791
72.136.103.146 0:0:0:0:0:ffff:4888:6792
72.136.103.147 0:0:0:0:0:ffff:4888:6793
72.136.103.148 0:0:0:0:0:ffff:4888:6794
72.136.103.149 0:0:0:0:0:ffff:4888:6795
72.136.103.150 0:0:0:0:0:ffff:4888:6796
72.136.103.151 0:0:0:0:0:ffff:4888:6797
72.136.103.152 0:0:0:0:0:ffff:4888:6798
72.136.103.153 0:0:0:0:0:ffff:4888:6799
72.136.103.154 0:0:0:0:0:ffff:4888:679a
72.136.103.155 0:0:0:0:0:ffff:4888:679b
72.136.103.156 0:0:0:0:0:ffff:4888:679c
72.136.103.157 0:0:0:0:0:ffff:4888:679d
72.136.103.158 0:0:0:0:0:ffff:4888:679e
72.136.103.159 0:0:0:0:0:ffff:4888:679f
72.136.103.160 0:0:0:0:0:ffff:4888:67a0
72.136.103.161 0:0:0:0:0:ffff:4888:67a1
72.136.103.162 0:0:0:0:0:ffff:4888:67a2
72.136.103.163 0:0:0:0:0:ffff:4888:67a3
72.136.103.164 0:0:0:0:0:ffff:4888:67a4
72.136.103.165 0:0:0:0:0:ffff:4888:67a5
72.136.103.166 0:0:0:0:0:ffff:4888:67a6
72.136.103.167 0:0:0:0:0:ffff:4888:67a7
72.136.103.168 0:0:0:0:0:ffff:4888:67a8
72.136.103.169 0:0:0:0:0:ffff:4888:67a9
72.136.103.170 0:0:0:0:0:ffff:4888:67aa
72.136.103.171 0:0:0:0:0:ffff:4888:67ab
72.136.103.172 0:0:0:0:0:ffff:4888:67ac
72.136.103.173 0:0:0:0:0:ffff:4888:67ad
72.136.103.174 0:0:0:0:0:ffff:4888:67ae
72.136.103.175 0:0:0:0:0:ffff:4888:67af
72.136.103.176 0:0:0:0:0:ffff:4888:67b0
72.136.103.177 0:0:0:0:0:ffff:4888:67b1
72.136.103.178 0:0:0:0:0:ffff:4888:67b2
72.136.103.179 0:0:0:0:0:ffff:4888:67b3
72.136.103.180 0:0:0:0:0:ffff:4888:67b4


72.136.103.181 0:0:0:0:0:ffff:4888:67b5
72.136.103.182 0:0:0:0:0:ffff:4888:67b6
72.136.103.183 0:0:0:0:0:ffff:4888:67b7
72.136.103.184 0:0:0:0:0:ffff:4888:67b8
72.136.103.185 0:0:0:0:0:ffff:4888:67b9
72.136.103.186 0:0:0:0:0:ffff:4888:67ba
72.136.103.187 0:0:0:0:0:ffff:4888:67bb
72.136.103.188 0:0:0:0:0:ffff:4888:67bc
72.136.103.189 0:0:0:0:0:ffff:4888:67bd
72.136.103.190 0:0:0:0:0:ffff:4888:67be
72.136.103.191 0:0:0:0:0:ffff:4888:67bf
72.136.103.192 0:0:0:0:0:ffff:4888:67c0
72.136.103.193 0:0:0:0:0:ffff:4888:67c1
72.136.103.194 0:0:0:0:0:ffff:4888:67c2
72.136.103.195 0:0:0:0:0:ffff:4888:67c3
72.136.103.196 0:0:0:0:0:ffff:4888:67c4
72.136.103.197 0:0:0:0:0:ffff:4888:67c5
72.136.103.198 0:0:0:0:0:ffff:4888:67c6
72.136.103.199 0:0:0:0:0:ffff:4888:67c7
72.136.103.200 0:0:0:0:0:ffff:4888:67c8
72.136.103.201 0:0:0:0:0:ffff:4888:67c9
72.136.103.202 0:0:0:0:0:ffff:4888:67ca
72.136.103.203 0:0:0:0:0:ffff:4888:67cb
72.136.103.204 0:0:0:0:0:ffff:4888:67cc
72.136.103.205 0:0:0:0:0:ffff:4888:67cd
72.136.103.206 0:0:0:0:0:ffff:4888:67ce
72.136.103.207 0:0:0:0:0:ffff:4888:67cf
72.136.103.208 0:0:0:0:0:ffff:4888:67d0
72.136.103.209 0:0:0:0:0:ffff:4888:67d1
72.136.103.210 0:0:0:0:0:ffff:4888:67d2
72.136.103.211 0:0:0:0:0:ffff:4888:67d3
72.136.103.212 0:0:0:0:0:ffff:4888:67d4
72.136.103.213 0:0:0:0:0:ffff:4888:67d5
72.136.103.214 0:0:0:0:0:ffff:4888:67d6
72.136.103.215 0:0:0:0:0:ffff:4888:67d7
72.136.103.216 0:0:0:0:0:ffff:4888:67d8
72.136.103.217 0:0:0:0:0:ffff:4888:67d9
72.136.103.218 0:0:0:0:0:ffff:4888:67da
72.136.103.219 0:0:0:0:0:ffff:4888:67db
72.136.103.220 0:0:0:0:0:ffff:4888:67dc
72.136.103.221 0:0:0:0:0:ffff:4888:67dd
72.136.103.222 0:0:0:0:0:ffff:4888:67de
72.136.103.223 0:0:0:0:0:ffff:4888:67df
72.136.103.224 0:0:0:0:0:ffff:4888:67e0
72.136.103.225 0:0:0:0:0:ffff:4888:67e1
72.136.103.226 0:0:0:0:0:ffff:4888:67e2
72.136.103.227 0:0:0:0:0:ffff:4888:67e3
72.136.103.228 0:0:0:0:0:ffff:4888:67e4
72.136.103.229 0:0:0:0:0:ffff:4888:67e5
72.136.103.230 0:0:0:0:0:ffff:4888:67e6
72.136.103.231 0:0:0:0:0:ffff:4888:67e7
72.136.103.232 0:0:0:0:0:ffff:4888:67e8
72.136.103.233 0:0:0:0:0:ffff:4888:67e9
72.136.103.234 0:0:0:0:0:ffff:4888:67ea
72.136.103.235 0:0:0:0:0:ffff:4888:67eb
72.136.103.236 0:0:0:0:0:ffff:4888:67ec
72.136.103.237 0:0:0:0:0:ffff:4888:67ed
72.136.103.238 0:0:0:0:0:ffff:4888:67ee
72.136.103.239 0:0:0:0:0:ffff:4888:67ef
72.136.103.240 0:0:0:0:0:ffff:4888:67f0
72.136.103.241 0:0:0:0:0:ffff:4888:67f1
72.136.103.242 0:0:0:0:0:ffff:4888:67f2
72.136.103.243 0:0:0:0:0:ffff:4888:67f3
72.136.103.244 0:0:0:0:0:ffff:4888:67f4
72.136.103.245 0:0:0:0:0:ffff:4888:67f5
72.136.103.246 0:0:0:0:0:ffff:4888:67f6
72.136.103.247 0:0:0:0:0:ffff:4888:67f7
72.136.103.248 0:0:0:0:0:ffff:4888:67f8
72.136.103.249 0:0:0:0:0:ffff:4888:67f9
72.136.103.250 0:0:0:0:0:ffff:4888:67fa
72.136.103.251 0:0:0:0:0:ffff:4888:67fb
72.136.103.252 0:0:0:0:0:ffff:4888:67fc
72.136.103.253 0:0:0:0:0:ffff:4888:67fd
72.136.103.254 0:0:0:0:0:ffff:4888:67fe
72.136.103.255 0:0:0:0:0:ffff:4888:67ff


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.