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
143.243.40.1 0:0:0:0:0:ffff:8ff3:2801
143.243.40.2 0:0:0:0:0:ffff:8ff3:2802
143.243.40.3 0:0:0:0:0:ffff:8ff3:2803
143.243.40.4 0:0:0:0:0:ffff:8ff3:2804
143.243.40.5 0:0:0:0:0:ffff:8ff3:2805
143.243.40.6 0:0:0:0:0:ffff:8ff3:2806
143.243.40.7 0:0:0:0:0:ffff:8ff3:2807
143.243.40.8 0:0:0:0:0:ffff:8ff3:2808
143.243.40.9 0:0:0:0:0:ffff:8ff3:2809
143.243.40.10 0:0:0:0:0:ffff:8ff3:280a
143.243.40.11 0:0:0:0:0:ffff:8ff3:280b
143.243.40.12 0:0:0:0:0:ffff:8ff3:280c
143.243.40.13 0:0:0:0:0:ffff:8ff3:280d
143.243.40.14 0:0:0:0:0:ffff:8ff3:280e
143.243.40.15 0:0:0:0:0:ffff:8ff3:280f
143.243.40.16 0:0:0:0:0:ffff:8ff3:2810
143.243.40.17 0:0:0:0:0:ffff:8ff3:2811
143.243.40.18 0:0:0:0:0:ffff:8ff3:2812
143.243.40.19 0:0:0:0:0:ffff:8ff3:2813
143.243.40.20 0:0:0:0:0:ffff:8ff3:2814
143.243.40.21 0:0:0:0:0:ffff:8ff3:2815
143.243.40.22 0:0:0:0:0:ffff:8ff3:2816
143.243.40.23 0:0:0:0:0:ffff:8ff3:2817
143.243.40.24 0:0:0:0:0:ffff:8ff3:2818
143.243.40.25 0:0:0:0:0:ffff:8ff3:2819
143.243.40.26 0:0:0:0:0:ffff:8ff3:281a
143.243.40.27 0:0:0:0:0:ffff:8ff3:281b
143.243.40.28 0:0:0:0:0:ffff:8ff3:281c
143.243.40.29 0:0:0:0:0:ffff:8ff3:281d
143.243.40.30 0:0:0:0:0:ffff:8ff3:281e
143.243.40.31 0:0:0:0:0:ffff:8ff3:281f
143.243.40.32 0:0:0:0:0:ffff:8ff3:2820
143.243.40.33 0:0:0:0:0:ffff:8ff3:2821
143.243.40.34 0:0:0:0:0:ffff:8ff3:2822
143.243.40.35 0:0:0:0:0:ffff:8ff3:2823
143.243.40.36 0:0:0:0:0:ffff:8ff3:2824
143.243.40.37 0:0:0:0:0:ffff:8ff3:2825
143.243.40.38 0:0:0:0:0:ffff:8ff3:2826
143.243.40.39 0:0:0:0:0:ffff:8ff3:2827
143.243.40.40 0:0:0:0:0:ffff:8ff3:2828
143.243.40.41 0:0:0:0:0:ffff:8ff3:2829
143.243.40.42 0:0:0:0:0:ffff:8ff3:282a
143.243.40.43 0:0:0:0:0:ffff:8ff3:282b
143.243.40.44 0:0:0:0:0:ffff:8ff3:282c
143.243.40.45 0:0:0:0:0:ffff:8ff3:282d
143.243.40.46 0:0:0:0:0:ffff:8ff3:282e
143.243.40.47 0:0:0:0:0:ffff:8ff3:282f
143.243.40.48 0:0:0:0:0:ffff:8ff3:2830
143.243.40.49 0:0:0:0:0:ffff:8ff3:2831
143.243.40.50 0:0:0:0:0:ffff:8ff3:2832
143.243.40.51 0:0:0:0:0:ffff:8ff3:2833
143.243.40.52 0:0:0:0:0:ffff:8ff3:2834
143.243.40.53 0:0:0:0:0:ffff:8ff3:2835
143.243.40.54 0:0:0:0:0:ffff:8ff3:2836
143.243.40.55 0:0:0:0:0:ffff:8ff3:2837
143.243.40.56 0:0:0:0:0:ffff:8ff3:2838
143.243.40.57 0:0:0:0:0:ffff:8ff3:2839
143.243.40.58 0:0:0:0:0:ffff:8ff3:283a
143.243.40.59 0:0:0:0:0:ffff:8ff3:283b
143.243.40.60 0:0:0:0:0:ffff:8ff3:283c


143.243.40.61 0:0:0:0:0:ffff:8ff3:283d
143.243.40.62 0:0:0:0:0:ffff:8ff3:283e
143.243.40.63 0:0:0:0:0:ffff:8ff3:283f
143.243.40.64 0:0:0:0:0:ffff:8ff3:2840
143.243.40.65 0:0:0:0:0:ffff:8ff3:2841
143.243.40.66 0:0:0:0:0:ffff:8ff3:2842
143.243.40.67 0:0:0:0:0:ffff:8ff3:2843
143.243.40.68 0:0:0:0:0:ffff:8ff3:2844
143.243.40.69 0:0:0:0:0:ffff:8ff3:2845
143.243.40.70 0:0:0:0:0:ffff:8ff3:2846
143.243.40.71 0:0:0:0:0:ffff:8ff3:2847
143.243.40.72 0:0:0:0:0:ffff:8ff3:2848
143.243.40.73 0:0:0:0:0:ffff:8ff3:2849
143.243.40.74 0:0:0:0:0:ffff:8ff3:284a
143.243.40.75 0:0:0:0:0:ffff:8ff3:284b
143.243.40.76 0:0:0:0:0:ffff:8ff3:284c
143.243.40.77 0:0:0:0:0:ffff:8ff3:284d
143.243.40.78 0:0:0:0:0:ffff:8ff3:284e
143.243.40.79 0:0:0:0:0:ffff:8ff3:284f
143.243.40.80 0:0:0:0:0:ffff:8ff3:2850
143.243.40.81 0:0:0:0:0:ffff:8ff3:2851
143.243.40.82 0:0:0:0:0:ffff:8ff3:2852
143.243.40.83 0:0:0:0:0:ffff:8ff3:2853
143.243.40.84 0:0:0:0:0:ffff:8ff3:2854
143.243.40.85 0:0:0:0:0:ffff:8ff3:2855
143.243.40.86 0:0:0:0:0:ffff:8ff3:2856
143.243.40.87 0:0:0:0:0:ffff:8ff3:2857
143.243.40.88 0:0:0:0:0:ffff:8ff3:2858
143.243.40.89 0:0:0:0:0:ffff:8ff3:2859
143.243.40.90 0:0:0:0:0:ffff:8ff3:285a
143.243.40.91 0:0:0:0:0:ffff:8ff3:285b
143.243.40.92 0:0:0:0:0:ffff:8ff3:285c
143.243.40.93 0:0:0:0:0:ffff:8ff3:285d
143.243.40.94 0:0:0:0:0:ffff:8ff3:285e
143.243.40.95 0:0:0:0:0:ffff:8ff3:285f
143.243.40.96 0:0:0:0:0:ffff:8ff3:2860
143.243.40.97 0:0:0:0:0:ffff:8ff3:2861
143.243.40.98 0:0:0:0:0:ffff:8ff3:2862
143.243.40.99 0:0:0:0:0:ffff:8ff3:2863
143.243.40.100 0:0:0:0:0:ffff:8ff3:2864
143.243.40.101 0:0:0:0:0:ffff:8ff3:2865
143.243.40.102 0:0:0:0:0:ffff:8ff3:2866
143.243.40.103 0:0:0:0:0:ffff:8ff3:2867
143.243.40.104 0:0:0:0:0:ffff:8ff3:2868
143.243.40.105 0:0:0:0:0:ffff:8ff3:2869
143.243.40.106 0:0:0:0:0:ffff:8ff3:286a
143.243.40.107 0:0:0:0:0:ffff:8ff3:286b
143.243.40.108 0:0:0:0:0:ffff:8ff3:286c
143.243.40.109 0:0:0:0:0:ffff:8ff3:286d
143.243.40.110 0:0:0:0:0:ffff:8ff3:286e
143.243.40.111 0:0:0:0:0:ffff:8ff3:286f
143.243.40.112 0:0:0:0:0:ffff:8ff3:2870
143.243.40.113 0:0:0:0:0:ffff:8ff3:2871
143.243.40.114 0:0:0:0:0:ffff:8ff3:2872
143.243.40.115 0:0:0:0:0:ffff:8ff3:2873
143.243.40.116 0:0:0:0:0:ffff:8ff3:2874
143.243.40.117 0:0:0:0:0:ffff:8ff3:2875
143.243.40.118 0:0:0:0:0:ffff:8ff3:2876
143.243.40.119 0:0:0:0:0:ffff:8ff3:2877
143.243.40.120 0:0:0:0:0:ffff:8ff3:2878


143.243.40.121 0:0:0:0:0:ffff:8ff3:2879
143.243.40.122 0:0:0:0:0:ffff:8ff3:287a
143.243.40.123 0:0:0:0:0:ffff:8ff3:287b
143.243.40.124 0:0:0:0:0:ffff:8ff3:287c
143.243.40.125 0:0:0:0:0:ffff:8ff3:287d
143.243.40.126 0:0:0:0:0:ffff:8ff3:287e
143.243.40.127 0:0:0:0:0:ffff:8ff3:287f
143.243.40.128 0:0:0:0:0:ffff:8ff3:2880
143.243.40.129 0:0:0:0:0:ffff:8ff3:2881
143.243.40.130 0:0:0:0:0:ffff:8ff3:2882
143.243.40.131 0:0:0:0:0:ffff:8ff3:2883
143.243.40.132 0:0:0:0:0:ffff:8ff3:2884
143.243.40.133 0:0:0:0:0:ffff:8ff3:2885
143.243.40.134 0:0:0:0:0:ffff:8ff3:2886
143.243.40.135 0:0:0:0:0:ffff:8ff3:2887
143.243.40.136 0:0:0:0:0:ffff:8ff3:2888
143.243.40.137 0:0:0:0:0:ffff:8ff3:2889
143.243.40.138 0:0:0:0:0:ffff:8ff3:288a
143.243.40.139 0:0:0:0:0:ffff:8ff3:288b
143.243.40.140 0:0:0:0:0:ffff:8ff3:288c
143.243.40.141 0:0:0:0:0:ffff:8ff3:288d
143.243.40.142 0:0:0:0:0:ffff:8ff3:288e
143.243.40.143 0:0:0:0:0:ffff:8ff3:288f
143.243.40.144 0:0:0:0:0:ffff:8ff3:2890
143.243.40.145 0:0:0:0:0:ffff:8ff3:2891
143.243.40.146 0:0:0:0:0:ffff:8ff3:2892
143.243.40.147 0:0:0:0:0:ffff:8ff3:2893
143.243.40.148 0:0:0:0:0:ffff:8ff3:2894
143.243.40.149 0:0:0:0:0:ffff:8ff3:2895
143.243.40.150 0:0:0:0:0:ffff:8ff3:2896
143.243.40.151 0:0:0:0:0:ffff:8ff3:2897
143.243.40.152 0:0:0:0:0:ffff:8ff3:2898
143.243.40.153 0:0:0:0:0:ffff:8ff3:2899
143.243.40.154 0:0:0:0:0:ffff:8ff3:289a
143.243.40.155 0:0:0:0:0:ffff:8ff3:289b
143.243.40.156 0:0:0:0:0:ffff:8ff3:289c
143.243.40.157 0:0:0:0:0:ffff:8ff3:289d
143.243.40.158 0:0:0:0:0:ffff:8ff3:289e
143.243.40.159 0:0:0:0:0:ffff:8ff3:289f
143.243.40.160 0:0:0:0:0:ffff:8ff3:28a0
143.243.40.161 0:0:0:0:0:ffff:8ff3:28a1
143.243.40.162 0:0:0:0:0:ffff:8ff3:28a2
143.243.40.163 0:0:0:0:0:ffff:8ff3:28a3
143.243.40.164 0:0:0:0:0:ffff:8ff3:28a4
143.243.40.165 0:0:0:0:0:ffff:8ff3:28a5
143.243.40.166 0:0:0:0:0:ffff:8ff3:28a6
143.243.40.167 0:0:0:0:0:ffff:8ff3:28a7
143.243.40.168 0:0:0:0:0:ffff:8ff3:28a8
143.243.40.169 0:0:0:0:0:ffff:8ff3:28a9
143.243.40.170 0:0:0:0:0:ffff:8ff3:28aa
143.243.40.171 0:0:0:0:0:ffff:8ff3:28ab
143.243.40.172 0:0:0:0:0:ffff:8ff3:28ac
143.243.40.173 0:0:0:0:0:ffff:8ff3:28ad
143.243.40.174 0:0:0:0:0:ffff:8ff3:28ae
143.243.40.175 0:0:0:0:0:ffff:8ff3:28af
143.243.40.176 0:0:0:0:0:ffff:8ff3:28b0
143.243.40.177 0:0:0:0:0:ffff:8ff3:28b1
143.243.40.178 0:0:0:0:0:ffff:8ff3:28b2
143.243.40.179 0:0:0:0:0:ffff:8ff3:28b3
143.243.40.180 0:0:0:0:0:ffff:8ff3:28b4


143.243.40.181 0:0:0:0:0:ffff:8ff3:28b5
143.243.40.182 0:0:0:0:0:ffff:8ff3:28b6
143.243.40.183 0:0:0:0:0:ffff:8ff3:28b7
143.243.40.184 0:0:0:0:0:ffff:8ff3:28b8
143.243.40.185 0:0:0:0:0:ffff:8ff3:28b9
143.243.40.186 0:0:0:0:0:ffff:8ff3:28ba
143.243.40.187 0:0:0:0:0:ffff:8ff3:28bb
143.243.40.188 0:0:0:0:0:ffff:8ff3:28bc
143.243.40.189 0:0:0:0:0:ffff:8ff3:28bd
143.243.40.190 0:0:0:0:0:ffff:8ff3:28be
143.243.40.191 0:0:0:0:0:ffff:8ff3:28bf
143.243.40.192 0:0:0:0:0:ffff:8ff3:28c0
143.243.40.193 0:0:0:0:0:ffff:8ff3:28c1
143.243.40.194 0:0:0:0:0:ffff:8ff3:28c2
143.243.40.195 0:0:0:0:0:ffff:8ff3:28c3
143.243.40.196 0:0:0:0:0:ffff:8ff3:28c4
143.243.40.197 0:0:0:0:0:ffff:8ff3:28c5
143.243.40.198 0:0:0:0:0:ffff:8ff3:28c6
143.243.40.199 0:0:0:0:0:ffff:8ff3:28c7
143.243.40.200 0:0:0:0:0:ffff:8ff3:28c8
143.243.40.201 0:0:0:0:0:ffff:8ff3:28c9
143.243.40.202 0:0:0:0:0:ffff:8ff3:28ca
143.243.40.203 0:0:0:0:0:ffff:8ff3:28cb
143.243.40.204 0:0:0:0:0:ffff:8ff3:28cc
143.243.40.205 0:0:0:0:0:ffff:8ff3:28cd
143.243.40.206 0:0:0:0:0:ffff:8ff3:28ce
143.243.40.207 0:0:0:0:0:ffff:8ff3:28cf
143.243.40.208 0:0:0:0:0:ffff:8ff3:28d0
143.243.40.209 0:0:0:0:0:ffff:8ff3:28d1
143.243.40.210 0:0:0:0:0:ffff:8ff3:28d2
143.243.40.211 0:0:0:0:0:ffff:8ff3:28d3
143.243.40.212 0:0:0:0:0:ffff:8ff3:28d4
143.243.40.213 0:0:0:0:0:ffff:8ff3:28d5
143.243.40.214 0:0:0:0:0:ffff:8ff3:28d6
143.243.40.215 0:0:0:0:0:ffff:8ff3:28d7
143.243.40.216 0:0:0:0:0:ffff:8ff3:28d8
143.243.40.217 0:0:0:0:0:ffff:8ff3:28d9
143.243.40.218 0:0:0:0:0:ffff:8ff3:28da
143.243.40.219 0:0:0:0:0:ffff:8ff3:28db
143.243.40.220 0:0:0:0:0:ffff:8ff3:28dc
143.243.40.221 0:0:0:0:0:ffff:8ff3:28dd
143.243.40.222 0:0:0:0:0:ffff:8ff3:28de
143.243.40.223 0:0:0:0:0:ffff:8ff3:28df
143.243.40.224 0:0:0:0:0:ffff:8ff3:28e0
143.243.40.225 0:0:0:0:0:ffff:8ff3:28e1
143.243.40.226 0:0:0:0:0:ffff:8ff3:28e2
143.243.40.227 0:0:0:0:0:ffff:8ff3:28e3
143.243.40.228 0:0:0:0:0:ffff:8ff3:28e4
143.243.40.229 0:0:0:0:0:ffff:8ff3:28e5
143.243.40.230 0:0:0:0:0:ffff:8ff3:28e6
143.243.40.231 0:0:0:0:0:ffff:8ff3:28e7
143.243.40.232 0:0:0:0:0:ffff:8ff3:28e8
143.243.40.233 0:0:0:0:0:ffff:8ff3:28e9
143.243.40.234 0:0:0:0:0:ffff:8ff3:28ea
143.243.40.235 0:0:0:0:0:ffff:8ff3:28eb
143.243.40.236 0:0:0:0:0:ffff:8ff3:28ec
143.243.40.237 0:0:0:0:0:ffff:8ff3:28ed
143.243.40.238 0:0:0:0:0:ffff:8ff3:28ee
143.243.40.239 0:0:0:0:0:ffff:8ff3:28ef
143.243.40.240 0:0:0:0:0:ffff:8ff3:28f0
143.243.40.241 0:0:0:0:0:ffff:8ff3:28f1
143.243.40.242 0:0:0:0:0:ffff:8ff3:28f2
143.243.40.243 0:0:0:0:0:ffff:8ff3:28f3
143.243.40.244 0:0:0:0:0:ffff:8ff3:28f4
143.243.40.245 0:0:0:0:0:ffff:8ff3:28f5
143.243.40.246 0:0:0:0:0:ffff:8ff3:28f6
143.243.40.247 0:0:0:0:0:ffff:8ff3:28f7
143.243.40.248 0:0:0:0:0:ffff:8ff3:28f8
143.243.40.249 0:0:0:0:0:ffff:8ff3:28f9
143.243.40.250 0:0:0:0:0:ffff:8ff3:28fa
143.243.40.251 0:0:0:0:0:ffff:8ff3:28fb
143.243.40.252 0:0:0:0:0:ffff:8ff3:28fc
143.243.40.253 0:0:0:0:0:ffff:8ff3:28fd
143.243.40.254 0:0:0:0:0:ffff:8ff3:28fe
143.243.40.255 0:0:0:0:0:ffff:8ff3:28ff


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.