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
157.187.40.1 0:0:0:0:0:ffff:9dbb:2801
157.187.40.2 0:0:0:0:0:ffff:9dbb:2802
157.187.40.3 0:0:0:0:0:ffff:9dbb:2803
157.187.40.4 0:0:0:0:0:ffff:9dbb:2804
157.187.40.5 0:0:0:0:0:ffff:9dbb:2805
157.187.40.6 0:0:0:0:0:ffff:9dbb:2806
157.187.40.7 0:0:0:0:0:ffff:9dbb:2807
157.187.40.8 0:0:0:0:0:ffff:9dbb:2808
157.187.40.9 0:0:0:0:0:ffff:9dbb:2809
157.187.40.10 0:0:0:0:0:ffff:9dbb:280a
157.187.40.11 0:0:0:0:0:ffff:9dbb:280b
157.187.40.12 0:0:0:0:0:ffff:9dbb:280c
157.187.40.13 0:0:0:0:0:ffff:9dbb:280d
157.187.40.14 0:0:0:0:0:ffff:9dbb:280e
157.187.40.15 0:0:0:0:0:ffff:9dbb:280f
157.187.40.16 0:0:0:0:0:ffff:9dbb:2810
157.187.40.17 0:0:0:0:0:ffff:9dbb:2811
157.187.40.18 0:0:0:0:0:ffff:9dbb:2812
157.187.40.19 0:0:0:0:0:ffff:9dbb:2813
157.187.40.20 0:0:0:0:0:ffff:9dbb:2814
157.187.40.21 0:0:0:0:0:ffff:9dbb:2815
157.187.40.22 0:0:0:0:0:ffff:9dbb:2816
157.187.40.23 0:0:0:0:0:ffff:9dbb:2817
157.187.40.24 0:0:0:0:0:ffff:9dbb:2818
157.187.40.25 0:0:0:0:0:ffff:9dbb:2819
157.187.40.26 0:0:0:0:0:ffff:9dbb:281a
157.187.40.27 0:0:0:0:0:ffff:9dbb:281b
157.187.40.28 0:0:0:0:0:ffff:9dbb:281c
157.187.40.29 0:0:0:0:0:ffff:9dbb:281d
157.187.40.30 0:0:0:0:0:ffff:9dbb:281e
157.187.40.31 0:0:0:0:0:ffff:9dbb:281f
157.187.40.32 0:0:0:0:0:ffff:9dbb:2820
157.187.40.33 0:0:0:0:0:ffff:9dbb:2821
157.187.40.34 0:0:0:0:0:ffff:9dbb:2822
157.187.40.35 0:0:0:0:0:ffff:9dbb:2823
157.187.40.36 0:0:0:0:0:ffff:9dbb:2824
157.187.40.37 0:0:0:0:0:ffff:9dbb:2825
157.187.40.38 0:0:0:0:0:ffff:9dbb:2826
157.187.40.39 0:0:0:0:0:ffff:9dbb:2827
157.187.40.40 0:0:0:0:0:ffff:9dbb:2828
157.187.40.41 0:0:0:0:0:ffff:9dbb:2829
157.187.40.42 0:0:0:0:0:ffff:9dbb:282a
157.187.40.43 0:0:0:0:0:ffff:9dbb:282b
157.187.40.44 0:0:0:0:0:ffff:9dbb:282c
157.187.40.45 0:0:0:0:0:ffff:9dbb:282d
157.187.40.46 0:0:0:0:0:ffff:9dbb:282e
157.187.40.47 0:0:0:0:0:ffff:9dbb:282f
157.187.40.48 0:0:0:0:0:ffff:9dbb:2830
157.187.40.49 0:0:0:0:0:ffff:9dbb:2831
157.187.40.50 0:0:0:0:0:ffff:9dbb:2832
157.187.40.51 0:0:0:0:0:ffff:9dbb:2833
157.187.40.52 0:0:0:0:0:ffff:9dbb:2834
157.187.40.53 0:0:0:0:0:ffff:9dbb:2835
157.187.40.54 0:0:0:0:0:ffff:9dbb:2836
157.187.40.55 0:0:0:0:0:ffff:9dbb:2837
157.187.40.56 0:0:0:0:0:ffff:9dbb:2838
157.187.40.57 0:0:0:0:0:ffff:9dbb:2839
157.187.40.58 0:0:0:0:0:ffff:9dbb:283a
157.187.40.59 0:0:0:0:0:ffff:9dbb:283b
157.187.40.60 0:0:0:0:0:ffff:9dbb:283c


157.187.40.61 0:0:0:0:0:ffff:9dbb:283d
157.187.40.62 0:0:0:0:0:ffff:9dbb:283e
157.187.40.63 0:0:0:0:0:ffff:9dbb:283f
157.187.40.64 0:0:0:0:0:ffff:9dbb:2840
157.187.40.65 0:0:0:0:0:ffff:9dbb:2841
157.187.40.66 0:0:0:0:0:ffff:9dbb:2842
157.187.40.67 0:0:0:0:0:ffff:9dbb:2843
157.187.40.68 0:0:0:0:0:ffff:9dbb:2844
157.187.40.69 0:0:0:0:0:ffff:9dbb:2845
157.187.40.70 0:0:0:0:0:ffff:9dbb:2846
157.187.40.71 0:0:0:0:0:ffff:9dbb:2847
157.187.40.72 0:0:0:0:0:ffff:9dbb:2848
157.187.40.73 0:0:0:0:0:ffff:9dbb:2849
157.187.40.74 0:0:0:0:0:ffff:9dbb:284a
157.187.40.75 0:0:0:0:0:ffff:9dbb:284b
157.187.40.76 0:0:0:0:0:ffff:9dbb:284c
157.187.40.77 0:0:0:0:0:ffff:9dbb:284d
157.187.40.78 0:0:0:0:0:ffff:9dbb:284e
157.187.40.79 0:0:0:0:0:ffff:9dbb:284f
157.187.40.80 0:0:0:0:0:ffff:9dbb:2850
157.187.40.81 0:0:0:0:0:ffff:9dbb:2851
157.187.40.82 0:0:0:0:0:ffff:9dbb:2852
157.187.40.83 0:0:0:0:0:ffff:9dbb:2853
157.187.40.84 0:0:0:0:0:ffff:9dbb:2854
157.187.40.85 0:0:0:0:0:ffff:9dbb:2855
157.187.40.86 0:0:0:0:0:ffff:9dbb:2856
157.187.40.87 0:0:0:0:0:ffff:9dbb:2857
157.187.40.88 0:0:0:0:0:ffff:9dbb:2858
157.187.40.89 0:0:0:0:0:ffff:9dbb:2859
157.187.40.90 0:0:0:0:0:ffff:9dbb:285a
157.187.40.91 0:0:0:0:0:ffff:9dbb:285b
157.187.40.92 0:0:0:0:0:ffff:9dbb:285c
157.187.40.93 0:0:0:0:0:ffff:9dbb:285d
157.187.40.94 0:0:0:0:0:ffff:9dbb:285e
157.187.40.95 0:0:0:0:0:ffff:9dbb:285f
157.187.40.96 0:0:0:0:0:ffff:9dbb:2860
157.187.40.97 0:0:0:0:0:ffff:9dbb:2861
157.187.40.98 0:0:0:0:0:ffff:9dbb:2862
157.187.40.99 0:0:0:0:0:ffff:9dbb:2863
157.187.40.100 0:0:0:0:0:ffff:9dbb:2864
157.187.40.101 0:0:0:0:0:ffff:9dbb:2865
157.187.40.102 0:0:0:0:0:ffff:9dbb:2866
157.187.40.103 0:0:0:0:0:ffff:9dbb:2867
157.187.40.104 0:0:0:0:0:ffff:9dbb:2868
157.187.40.105 0:0:0:0:0:ffff:9dbb:2869
157.187.40.106 0:0:0:0:0:ffff:9dbb:286a
157.187.40.107 0:0:0:0:0:ffff:9dbb:286b
157.187.40.108 0:0:0:0:0:ffff:9dbb:286c
157.187.40.109 0:0:0:0:0:ffff:9dbb:286d
157.187.40.110 0:0:0:0:0:ffff:9dbb:286e
157.187.40.111 0:0:0:0:0:ffff:9dbb:286f
157.187.40.112 0:0:0:0:0:ffff:9dbb:2870
157.187.40.113 0:0:0:0:0:ffff:9dbb:2871
157.187.40.114 0:0:0:0:0:ffff:9dbb:2872
157.187.40.115 0:0:0:0:0:ffff:9dbb:2873
157.187.40.116 0:0:0:0:0:ffff:9dbb:2874
157.187.40.117 0:0:0:0:0:ffff:9dbb:2875
157.187.40.118 0:0:0:0:0:ffff:9dbb:2876
157.187.40.119 0:0:0:0:0:ffff:9dbb:2877
157.187.40.120 0:0:0:0:0:ffff:9dbb:2878


157.187.40.121 0:0:0:0:0:ffff:9dbb:2879
157.187.40.122 0:0:0:0:0:ffff:9dbb:287a
157.187.40.123 0:0:0:0:0:ffff:9dbb:287b
157.187.40.124 0:0:0:0:0:ffff:9dbb:287c
157.187.40.125 0:0:0:0:0:ffff:9dbb:287d
157.187.40.126 0:0:0:0:0:ffff:9dbb:287e
157.187.40.127 0:0:0:0:0:ffff:9dbb:287f
157.187.40.128 0:0:0:0:0:ffff:9dbb:2880
157.187.40.129 0:0:0:0:0:ffff:9dbb:2881
157.187.40.130 0:0:0:0:0:ffff:9dbb:2882
157.187.40.131 0:0:0:0:0:ffff:9dbb:2883
157.187.40.132 0:0:0:0:0:ffff:9dbb:2884
157.187.40.133 0:0:0:0:0:ffff:9dbb:2885
157.187.40.134 0:0:0:0:0:ffff:9dbb:2886
157.187.40.135 0:0:0:0:0:ffff:9dbb:2887
157.187.40.136 0:0:0:0:0:ffff:9dbb:2888
157.187.40.137 0:0:0:0:0:ffff:9dbb:2889
157.187.40.138 0:0:0:0:0:ffff:9dbb:288a
157.187.40.139 0:0:0:0:0:ffff:9dbb:288b
157.187.40.140 0:0:0:0:0:ffff:9dbb:288c
157.187.40.141 0:0:0:0:0:ffff:9dbb:288d
157.187.40.142 0:0:0:0:0:ffff:9dbb:288e
157.187.40.143 0:0:0:0:0:ffff:9dbb:288f
157.187.40.144 0:0:0:0:0:ffff:9dbb:2890
157.187.40.145 0:0:0:0:0:ffff:9dbb:2891
157.187.40.146 0:0:0:0:0:ffff:9dbb:2892
157.187.40.147 0:0:0:0:0:ffff:9dbb:2893
157.187.40.148 0:0:0:0:0:ffff:9dbb:2894
157.187.40.149 0:0:0:0:0:ffff:9dbb:2895
157.187.40.150 0:0:0:0:0:ffff:9dbb:2896
157.187.40.151 0:0:0:0:0:ffff:9dbb:2897
157.187.40.152 0:0:0:0:0:ffff:9dbb:2898
157.187.40.153 0:0:0:0:0:ffff:9dbb:2899
157.187.40.154 0:0:0:0:0:ffff:9dbb:289a
157.187.40.155 0:0:0:0:0:ffff:9dbb:289b
157.187.40.156 0:0:0:0:0:ffff:9dbb:289c
157.187.40.157 0:0:0:0:0:ffff:9dbb:289d
157.187.40.158 0:0:0:0:0:ffff:9dbb:289e
157.187.40.159 0:0:0:0:0:ffff:9dbb:289f
157.187.40.160 0:0:0:0:0:ffff:9dbb:28a0
157.187.40.161 0:0:0:0:0:ffff:9dbb:28a1
157.187.40.162 0:0:0:0:0:ffff:9dbb:28a2
157.187.40.163 0:0:0:0:0:ffff:9dbb:28a3
157.187.40.164 0:0:0:0:0:ffff:9dbb:28a4
157.187.40.165 0:0:0:0:0:ffff:9dbb:28a5
157.187.40.166 0:0:0:0:0:ffff:9dbb:28a6
157.187.40.167 0:0:0:0:0:ffff:9dbb:28a7
157.187.40.168 0:0:0:0:0:ffff:9dbb:28a8
157.187.40.169 0:0:0:0:0:ffff:9dbb:28a9
157.187.40.170 0:0:0:0:0:ffff:9dbb:28aa
157.187.40.171 0:0:0:0:0:ffff:9dbb:28ab
157.187.40.172 0:0:0:0:0:ffff:9dbb:28ac
157.187.40.173 0:0:0:0:0:ffff:9dbb:28ad
157.187.40.174 0:0:0:0:0:ffff:9dbb:28ae
157.187.40.175 0:0:0:0:0:ffff:9dbb:28af
157.187.40.176 0:0:0:0:0:ffff:9dbb:28b0
157.187.40.177 0:0:0:0:0:ffff:9dbb:28b1
157.187.40.178 0:0:0:0:0:ffff:9dbb:28b2
157.187.40.179 0:0:0:0:0:ffff:9dbb:28b3
157.187.40.180 0:0:0:0:0:ffff:9dbb:28b4


157.187.40.181 0:0:0:0:0:ffff:9dbb:28b5
157.187.40.182 0:0:0:0:0:ffff:9dbb:28b6
157.187.40.183 0:0:0:0:0:ffff:9dbb:28b7
157.187.40.184 0:0:0:0:0:ffff:9dbb:28b8
157.187.40.185 0:0:0:0:0:ffff:9dbb:28b9
157.187.40.186 0:0:0:0:0:ffff:9dbb:28ba
157.187.40.187 0:0:0:0:0:ffff:9dbb:28bb
157.187.40.188 0:0:0:0:0:ffff:9dbb:28bc
157.187.40.189 0:0:0:0:0:ffff:9dbb:28bd
157.187.40.190 0:0:0:0:0:ffff:9dbb:28be
157.187.40.191 0:0:0:0:0:ffff:9dbb:28bf
157.187.40.192 0:0:0:0:0:ffff:9dbb:28c0
157.187.40.193 0:0:0:0:0:ffff:9dbb:28c1
157.187.40.194 0:0:0:0:0:ffff:9dbb:28c2
157.187.40.195 0:0:0:0:0:ffff:9dbb:28c3
157.187.40.196 0:0:0:0:0:ffff:9dbb:28c4
157.187.40.197 0:0:0:0:0:ffff:9dbb:28c5
157.187.40.198 0:0:0:0:0:ffff:9dbb:28c6
157.187.40.199 0:0:0:0:0:ffff:9dbb:28c7
157.187.40.200 0:0:0:0:0:ffff:9dbb:28c8
157.187.40.201 0:0:0:0:0:ffff:9dbb:28c9
157.187.40.202 0:0:0:0:0:ffff:9dbb:28ca
157.187.40.203 0:0:0:0:0:ffff:9dbb:28cb
157.187.40.204 0:0:0:0:0:ffff:9dbb:28cc
157.187.40.205 0:0:0:0:0:ffff:9dbb:28cd
157.187.40.206 0:0:0:0:0:ffff:9dbb:28ce
157.187.40.207 0:0:0:0:0:ffff:9dbb:28cf
157.187.40.208 0:0:0:0:0:ffff:9dbb:28d0
157.187.40.209 0:0:0:0:0:ffff:9dbb:28d1
157.187.40.210 0:0:0:0:0:ffff:9dbb:28d2
157.187.40.211 0:0:0:0:0:ffff:9dbb:28d3
157.187.40.212 0:0:0:0:0:ffff:9dbb:28d4
157.187.40.213 0:0:0:0:0:ffff:9dbb:28d5
157.187.40.214 0:0:0:0:0:ffff:9dbb:28d6
157.187.40.215 0:0:0:0:0:ffff:9dbb:28d7
157.187.40.216 0:0:0:0:0:ffff:9dbb:28d8
157.187.40.217 0:0:0:0:0:ffff:9dbb:28d9
157.187.40.218 0:0:0:0:0:ffff:9dbb:28da
157.187.40.219 0:0:0:0:0:ffff:9dbb:28db
157.187.40.220 0:0:0:0:0:ffff:9dbb:28dc
157.187.40.221 0:0:0:0:0:ffff:9dbb:28dd
157.187.40.222 0:0:0:0:0:ffff:9dbb:28de
157.187.40.223 0:0:0:0:0:ffff:9dbb:28df
157.187.40.224 0:0:0:0:0:ffff:9dbb:28e0
157.187.40.225 0:0:0:0:0:ffff:9dbb:28e1
157.187.40.226 0:0:0:0:0:ffff:9dbb:28e2
157.187.40.227 0:0:0:0:0:ffff:9dbb:28e3
157.187.40.228 0:0:0:0:0:ffff:9dbb:28e4
157.187.40.229 0:0:0:0:0:ffff:9dbb:28e5
157.187.40.230 0:0:0:0:0:ffff:9dbb:28e6
157.187.40.231 0:0:0:0:0:ffff:9dbb:28e7
157.187.40.232 0:0:0:0:0:ffff:9dbb:28e8
157.187.40.233 0:0:0:0:0:ffff:9dbb:28e9
157.187.40.234 0:0:0:0:0:ffff:9dbb:28ea
157.187.40.235 0:0:0:0:0:ffff:9dbb:28eb
157.187.40.236 0:0:0:0:0:ffff:9dbb:28ec
157.187.40.237 0:0:0:0:0:ffff:9dbb:28ed
157.187.40.238 0:0:0:0:0:ffff:9dbb:28ee
157.187.40.239 0:0:0:0:0:ffff:9dbb:28ef
157.187.40.240 0:0:0:0:0:ffff:9dbb:28f0
157.187.40.241 0:0:0:0:0:ffff:9dbb:28f1
157.187.40.242 0:0:0:0:0:ffff:9dbb:28f2
157.187.40.243 0:0:0:0:0:ffff:9dbb:28f3
157.187.40.244 0:0:0:0:0:ffff:9dbb:28f4
157.187.40.245 0:0:0:0:0:ffff:9dbb:28f5
157.187.40.246 0:0:0:0:0:ffff:9dbb:28f6
157.187.40.247 0:0:0:0:0:ffff:9dbb:28f7
157.187.40.248 0:0:0:0:0:ffff:9dbb:28f8
157.187.40.249 0:0:0:0:0:ffff:9dbb:28f9
157.187.40.250 0:0:0:0:0:ffff:9dbb:28fa
157.187.40.251 0:0:0:0:0:ffff:9dbb:28fb
157.187.40.252 0:0:0:0:0:ffff:9dbb:28fc
157.187.40.253 0:0:0:0:0:ffff:9dbb:28fd
157.187.40.254 0:0:0:0:0:ffff:9dbb:28fe
157.187.40.255 0:0:0:0:0:ffff:9dbb:28ff


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.