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
65.121.39.1 0:0:0:0:0:ffff:4179:2701
65.121.39.2 0:0:0:0:0:ffff:4179:2702
65.121.39.3 0:0:0:0:0:ffff:4179:2703
65.121.39.4 0:0:0:0:0:ffff:4179:2704
65.121.39.5 0:0:0:0:0:ffff:4179:2705
65.121.39.6 0:0:0:0:0:ffff:4179:2706
65.121.39.7 0:0:0:0:0:ffff:4179:2707
65.121.39.8 0:0:0:0:0:ffff:4179:2708
65.121.39.9 0:0:0:0:0:ffff:4179:2709
65.121.39.10 0:0:0:0:0:ffff:4179:270a
65.121.39.11 0:0:0:0:0:ffff:4179:270b
65.121.39.12 0:0:0:0:0:ffff:4179:270c
65.121.39.13 0:0:0:0:0:ffff:4179:270d
65.121.39.14 0:0:0:0:0:ffff:4179:270e
65.121.39.15 0:0:0:0:0:ffff:4179:270f
65.121.39.16 0:0:0:0:0:ffff:4179:2710
65.121.39.17 0:0:0:0:0:ffff:4179:2711
65.121.39.18 0:0:0:0:0:ffff:4179:2712
65.121.39.19 0:0:0:0:0:ffff:4179:2713
65.121.39.20 0:0:0:0:0:ffff:4179:2714
65.121.39.21 0:0:0:0:0:ffff:4179:2715
65.121.39.22 0:0:0:0:0:ffff:4179:2716
65.121.39.23 0:0:0:0:0:ffff:4179:2717
65.121.39.24 0:0:0:0:0:ffff:4179:2718
65.121.39.25 0:0:0:0:0:ffff:4179:2719
65.121.39.26 0:0:0:0:0:ffff:4179:271a
65.121.39.27 0:0:0:0:0:ffff:4179:271b
65.121.39.28 0:0:0:0:0:ffff:4179:271c
65.121.39.29 0:0:0:0:0:ffff:4179:271d
65.121.39.30 0:0:0:0:0:ffff:4179:271e
65.121.39.31 0:0:0:0:0:ffff:4179:271f
65.121.39.32 0:0:0:0:0:ffff:4179:2720
65.121.39.33 0:0:0:0:0:ffff:4179:2721
65.121.39.34 0:0:0:0:0:ffff:4179:2722
65.121.39.35 0:0:0:0:0:ffff:4179:2723
65.121.39.36 0:0:0:0:0:ffff:4179:2724
65.121.39.37 0:0:0:0:0:ffff:4179:2725
65.121.39.38 0:0:0:0:0:ffff:4179:2726
65.121.39.39 0:0:0:0:0:ffff:4179:2727
65.121.39.40 0:0:0:0:0:ffff:4179:2728
65.121.39.41 0:0:0:0:0:ffff:4179:2729
65.121.39.42 0:0:0:0:0:ffff:4179:272a
65.121.39.43 0:0:0:0:0:ffff:4179:272b
65.121.39.44 0:0:0:0:0:ffff:4179:272c
65.121.39.45 0:0:0:0:0:ffff:4179:272d
65.121.39.46 0:0:0:0:0:ffff:4179:272e
65.121.39.47 0:0:0:0:0:ffff:4179:272f
65.121.39.48 0:0:0:0:0:ffff:4179:2730
65.121.39.49 0:0:0:0:0:ffff:4179:2731
65.121.39.50 0:0:0:0:0:ffff:4179:2732
65.121.39.51 0:0:0:0:0:ffff:4179:2733
65.121.39.52 0:0:0:0:0:ffff:4179:2734
65.121.39.53 0:0:0:0:0:ffff:4179:2735
65.121.39.54 0:0:0:0:0:ffff:4179:2736
65.121.39.55 0:0:0:0:0:ffff:4179:2737
65.121.39.56 0:0:0:0:0:ffff:4179:2738
65.121.39.57 0:0:0:0:0:ffff:4179:2739
65.121.39.58 0:0:0:0:0:ffff:4179:273a
65.121.39.59 0:0:0:0:0:ffff:4179:273b
65.121.39.60 0:0:0:0:0:ffff:4179:273c


65.121.39.61 0:0:0:0:0:ffff:4179:273d
65.121.39.62 0:0:0:0:0:ffff:4179:273e
65.121.39.63 0:0:0:0:0:ffff:4179:273f
65.121.39.64 0:0:0:0:0:ffff:4179:2740
65.121.39.65 0:0:0:0:0:ffff:4179:2741
65.121.39.66 0:0:0:0:0:ffff:4179:2742
65.121.39.67 0:0:0:0:0:ffff:4179:2743
65.121.39.68 0:0:0:0:0:ffff:4179:2744
65.121.39.69 0:0:0:0:0:ffff:4179:2745
65.121.39.70 0:0:0:0:0:ffff:4179:2746
65.121.39.71 0:0:0:0:0:ffff:4179:2747
65.121.39.72 0:0:0:0:0:ffff:4179:2748
65.121.39.73 0:0:0:0:0:ffff:4179:2749
65.121.39.74 0:0:0:0:0:ffff:4179:274a
65.121.39.75 0:0:0:0:0:ffff:4179:274b
65.121.39.76 0:0:0:0:0:ffff:4179:274c
65.121.39.77 0:0:0:0:0:ffff:4179:274d
65.121.39.78 0:0:0:0:0:ffff:4179:274e
65.121.39.79 0:0:0:0:0:ffff:4179:274f
65.121.39.80 0:0:0:0:0:ffff:4179:2750
65.121.39.81 0:0:0:0:0:ffff:4179:2751
65.121.39.82 0:0:0:0:0:ffff:4179:2752
65.121.39.83 0:0:0:0:0:ffff:4179:2753
65.121.39.84 0:0:0:0:0:ffff:4179:2754
65.121.39.85 0:0:0:0:0:ffff:4179:2755
65.121.39.86 0:0:0:0:0:ffff:4179:2756
65.121.39.87 0:0:0:0:0:ffff:4179:2757
65.121.39.88 0:0:0:0:0:ffff:4179:2758
65.121.39.89 0:0:0:0:0:ffff:4179:2759
65.121.39.90 0:0:0:0:0:ffff:4179:275a
65.121.39.91 0:0:0:0:0:ffff:4179:275b
65.121.39.92 0:0:0:0:0:ffff:4179:275c
65.121.39.93 0:0:0:0:0:ffff:4179:275d
65.121.39.94 0:0:0:0:0:ffff:4179:275e
65.121.39.95 0:0:0:0:0:ffff:4179:275f
65.121.39.96 0:0:0:0:0:ffff:4179:2760
65.121.39.97 0:0:0:0:0:ffff:4179:2761
65.121.39.98 0:0:0:0:0:ffff:4179:2762
65.121.39.99 0:0:0:0:0:ffff:4179:2763
65.121.39.100 0:0:0:0:0:ffff:4179:2764
65.121.39.101 0:0:0:0:0:ffff:4179:2765
65.121.39.102 0:0:0:0:0:ffff:4179:2766
65.121.39.103 0:0:0:0:0:ffff:4179:2767
65.121.39.104 0:0:0:0:0:ffff:4179:2768
65.121.39.105 0:0:0:0:0:ffff:4179:2769
65.121.39.106 0:0:0:0:0:ffff:4179:276a
65.121.39.107 0:0:0:0:0:ffff:4179:276b
65.121.39.108 0:0:0:0:0:ffff:4179:276c
65.121.39.109 0:0:0:0:0:ffff:4179:276d
65.121.39.110 0:0:0:0:0:ffff:4179:276e
65.121.39.111 0:0:0:0:0:ffff:4179:276f
65.121.39.112 0:0:0:0:0:ffff:4179:2770
65.121.39.113 0:0:0:0:0:ffff:4179:2771
65.121.39.114 0:0:0:0:0:ffff:4179:2772
65.121.39.115 0:0:0:0:0:ffff:4179:2773
65.121.39.116 0:0:0:0:0:ffff:4179:2774
65.121.39.117 0:0:0:0:0:ffff:4179:2775
65.121.39.118 0:0:0:0:0:ffff:4179:2776
65.121.39.119 0:0:0:0:0:ffff:4179:2777
65.121.39.120 0:0:0:0:0:ffff:4179:2778


65.121.39.121 0:0:0:0:0:ffff:4179:2779
65.121.39.122 0:0:0:0:0:ffff:4179:277a
65.121.39.123 0:0:0:0:0:ffff:4179:277b
65.121.39.124 0:0:0:0:0:ffff:4179:277c
65.121.39.125 0:0:0:0:0:ffff:4179:277d
65.121.39.126 0:0:0:0:0:ffff:4179:277e
65.121.39.127 0:0:0:0:0:ffff:4179:277f
65.121.39.128 0:0:0:0:0:ffff:4179:2780
65.121.39.129 0:0:0:0:0:ffff:4179:2781
65.121.39.130 0:0:0:0:0:ffff:4179:2782
65.121.39.131 0:0:0:0:0:ffff:4179:2783
65.121.39.132 0:0:0:0:0:ffff:4179:2784
65.121.39.133 0:0:0:0:0:ffff:4179:2785
65.121.39.134 0:0:0:0:0:ffff:4179:2786
65.121.39.135 0:0:0:0:0:ffff:4179:2787
65.121.39.136 0:0:0:0:0:ffff:4179:2788
65.121.39.137 0:0:0:0:0:ffff:4179:2789
65.121.39.138 0:0:0:0:0:ffff:4179:278a
65.121.39.139 0:0:0:0:0:ffff:4179:278b
65.121.39.140 0:0:0:0:0:ffff:4179:278c
65.121.39.141 0:0:0:0:0:ffff:4179:278d
65.121.39.142 0:0:0:0:0:ffff:4179:278e
65.121.39.143 0:0:0:0:0:ffff:4179:278f
65.121.39.144 0:0:0:0:0:ffff:4179:2790
65.121.39.145 0:0:0:0:0:ffff:4179:2791
65.121.39.146 0:0:0:0:0:ffff:4179:2792
65.121.39.147 0:0:0:0:0:ffff:4179:2793
65.121.39.148 0:0:0:0:0:ffff:4179:2794
65.121.39.149 0:0:0:0:0:ffff:4179:2795
65.121.39.150 0:0:0:0:0:ffff:4179:2796
65.121.39.151 0:0:0:0:0:ffff:4179:2797
65.121.39.152 0:0:0:0:0:ffff:4179:2798
65.121.39.153 0:0:0:0:0:ffff:4179:2799
65.121.39.154 0:0:0:0:0:ffff:4179:279a
65.121.39.155 0:0:0:0:0:ffff:4179:279b
65.121.39.156 0:0:0:0:0:ffff:4179:279c
65.121.39.157 0:0:0:0:0:ffff:4179:279d
65.121.39.158 0:0:0:0:0:ffff:4179:279e
65.121.39.159 0:0:0:0:0:ffff:4179:279f
65.121.39.160 0:0:0:0:0:ffff:4179:27a0
65.121.39.161 0:0:0:0:0:ffff:4179:27a1
65.121.39.162 0:0:0:0:0:ffff:4179:27a2
65.121.39.163 0:0:0:0:0:ffff:4179:27a3
65.121.39.164 0:0:0:0:0:ffff:4179:27a4
65.121.39.165 0:0:0:0:0:ffff:4179:27a5
65.121.39.166 0:0:0:0:0:ffff:4179:27a6
65.121.39.167 0:0:0:0:0:ffff:4179:27a7
65.121.39.168 0:0:0:0:0:ffff:4179:27a8
65.121.39.169 0:0:0:0:0:ffff:4179:27a9
65.121.39.170 0:0:0:0:0:ffff:4179:27aa
65.121.39.171 0:0:0:0:0:ffff:4179:27ab
65.121.39.172 0:0:0:0:0:ffff:4179:27ac
65.121.39.173 0:0:0:0:0:ffff:4179:27ad
65.121.39.174 0:0:0:0:0:ffff:4179:27ae
65.121.39.175 0:0:0:0:0:ffff:4179:27af
65.121.39.176 0:0:0:0:0:ffff:4179:27b0
65.121.39.177 0:0:0:0:0:ffff:4179:27b1
65.121.39.178 0:0:0:0:0:ffff:4179:27b2
65.121.39.179 0:0:0:0:0:ffff:4179:27b3
65.121.39.180 0:0:0:0:0:ffff:4179:27b4


65.121.39.181 0:0:0:0:0:ffff:4179:27b5
65.121.39.182 0:0:0:0:0:ffff:4179:27b6
65.121.39.183 0:0:0:0:0:ffff:4179:27b7
65.121.39.184 0:0:0:0:0:ffff:4179:27b8
65.121.39.185 0:0:0:0:0:ffff:4179:27b9
65.121.39.186 0:0:0:0:0:ffff:4179:27ba
65.121.39.187 0:0:0:0:0:ffff:4179:27bb
65.121.39.188 0:0:0:0:0:ffff:4179:27bc
65.121.39.189 0:0:0:0:0:ffff:4179:27bd
65.121.39.190 0:0:0:0:0:ffff:4179:27be
65.121.39.191 0:0:0:0:0:ffff:4179:27bf
65.121.39.192 0:0:0:0:0:ffff:4179:27c0
65.121.39.193 0:0:0:0:0:ffff:4179:27c1
65.121.39.194 0:0:0:0:0:ffff:4179:27c2
65.121.39.195 0:0:0:0:0:ffff:4179:27c3
65.121.39.196 0:0:0:0:0:ffff:4179:27c4
65.121.39.197 0:0:0:0:0:ffff:4179:27c5
65.121.39.198 0:0:0:0:0:ffff:4179:27c6
65.121.39.199 0:0:0:0:0:ffff:4179:27c7
65.121.39.200 0:0:0:0:0:ffff:4179:27c8
65.121.39.201 0:0:0:0:0:ffff:4179:27c9
65.121.39.202 0:0:0:0:0:ffff:4179:27ca
65.121.39.203 0:0:0:0:0:ffff:4179:27cb
65.121.39.204 0:0:0:0:0:ffff:4179:27cc
65.121.39.205 0:0:0:0:0:ffff:4179:27cd
65.121.39.206 0:0:0:0:0:ffff:4179:27ce
65.121.39.207 0:0:0:0:0:ffff:4179:27cf
65.121.39.208 0:0:0:0:0:ffff:4179:27d0
65.121.39.209 0:0:0:0:0:ffff:4179:27d1
65.121.39.210 0:0:0:0:0:ffff:4179:27d2
65.121.39.211 0:0:0:0:0:ffff:4179:27d3
65.121.39.212 0:0:0:0:0:ffff:4179:27d4
65.121.39.213 0:0:0:0:0:ffff:4179:27d5
65.121.39.214 0:0:0:0:0:ffff:4179:27d6
65.121.39.215 0:0:0:0:0:ffff:4179:27d7
65.121.39.216 0:0:0:0:0:ffff:4179:27d8
65.121.39.217 0:0:0:0:0:ffff:4179:27d9
65.121.39.218 0:0:0:0:0:ffff:4179:27da
65.121.39.219 0:0:0:0:0:ffff:4179:27db
65.121.39.220 0:0:0:0:0:ffff:4179:27dc
65.121.39.221 0:0:0:0:0:ffff:4179:27dd
65.121.39.222 0:0:0:0:0:ffff:4179:27de
65.121.39.223 0:0:0:0:0:ffff:4179:27df
65.121.39.224 0:0:0:0:0:ffff:4179:27e0
65.121.39.225 0:0:0:0:0:ffff:4179:27e1
65.121.39.226 0:0:0:0:0:ffff:4179:27e2
65.121.39.227 0:0:0:0:0:ffff:4179:27e3
65.121.39.228 0:0:0:0:0:ffff:4179:27e4
65.121.39.229 0:0:0:0:0:ffff:4179:27e5
65.121.39.230 0:0:0:0:0:ffff:4179:27e6
65.121.39.231 0:0:0:0:0:ffff:4179:27e7
65.121.39.232 0:0:0:0:0:ffff:4179:27e8
65.121.39.233 0:0:0:0:0:ffff:4179:27e9
65.121.39.234 0:0:0:0:0:ffff:4179:27ea
65.121.39.235 0:0:0:0:0:ffff:4179:27eb
65.121.39.236 0:0:0:0:0:ffff:4179:27ec
65.121.39.237 0:0:0:0:0:ffff:4179:27ed
65.121.39.238 0:0:0:0:0:ffff:4179:27ee
65.121.39.239 0:0:0:0:0:ffff:4179:27ef
65.121.39.240 0:0:0:0:0:ffff:4179:27f0
65.121.39.241 0:0:0:0:0:ffff:4179:27f1
65.121.39.242 0:0:0:0:0:ffff:4179:27f2
65.121.39.243 0:0:0:0:0:ffff:4179:27f3
65.121.39.244 0:0:0:0:0:ffff:4179:27f4
65.121.39.245 0:0:0:0:0:ffff:4179:27f5
65.121.39.246 0:0:0:0:0:ffff:4179:27f6
65.121.39.247 0:0:0:0:0:ffff:4179:27f7
65.121.39.248 0:0:0:0:0:ffff:4179:27f8
65.121.39.249 0:0:0:0:0:ffff:4179:27f9
65.121.39.250 0:0:0:0:0:ffff:4179:27fa
65.121.39.251 0:0:0:0:0:ffff:4179:27fb
65.121.39.252 0:0:0:0:0:ffff:4179:27fc
65.121.39.253 0:0:0:0:0:ffff:4179:27fd
65.121.39.254 0:0:0:0:0:ffff:4179:27fe
65.121.39.255 0:0:0:0:0:ffff:4179:27ff


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.