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
197.151.149.1 0:0:0:0:0:ffff:c597:9501
197.151.149.2 0:0:0:0:0:ffff:c597:9502
197.151.149.3 0:0:0:0:0:ffff:c597:9503
197.151.149.4 0:0:0:0:0:ffff:c597:9504
197.151.149.5 0:0:0:0:0:ffff:c597:9505
197.151.149.6 0:0:0:0:0:ffff:c597:9506
197.151.149.7 0:0:0:0:0:ffff:c597:9507
197.151.149.8 0:0:0:0:0:ffff:c597:9508
197.151.149.9 0:0:0:0:0:ffff:c597:9509
197.151.149.10 0:0:0:0:0:ffff:c597:950a
197.151.149.11 0:0:0:0:0:ffff:c597:950b
197.151.149.12 0:0:0:0:0:ffff:c597:950c
197.151.149.13 0:0:0:0:0:ffff:c597:950d
197.151.149.14 0:0:0:0:0:ffff:c597:950e
197.151.149.15 0:0:0:0:0:ffff:c597:950f
197.151.149.16 0:0:0:0:0:ffff:c597:9510
197.151.149.17 0:0:0:0:0:ffff:c597:9511
197.151.149.18 0:0:0:0:0:ffff:c597:9512
197.151.149.19 0:0:0:0:0:ffff:c597:9513
197.151.149.20 0:0:0:0:0:ffff:c597:9514
197.151.149.21 0:0:0:0:0:ffff:c597:9515
197.151.149.22 0:0:0:0:0:ffff:c597:9516
197.151.149.23 0:0:0:0:0:ffff:c597:9517
197.151.149.24 0:0:0:0:0:ffff:c597:9518
197.151.149.25 0:0:0:0:0:ffff:c597:9519
197.151.149.26 0:0:0:0:0:ffff:c597:951a
197.151.149.27 0:0:0:0:0:ffff:c597:951b
197.151.149.28 0:0:0:0:0:ffff:c597:951c
197.151.149.29 0:0:0:0:0:ffff:c597:951d
197.151.149.30 0:0:0:0:0:ffff:c597:951e
197.151.149.31 0:0:0:0:0:ffff:c597:951f
197.151.149.32 0:0:0:0:0:ffff:c597:9520
197.151.149.33 0:0:0:0:0:ffff:c597:9521
197.151.149.34 0:0:0:0:0:ffff:c597:9522
197.151.149.35 0:0:0:0:0:ffff:c597:9523
197.151.149.36 0:0:0:0:0:ffff:c597:9524
197.151.149.37 0:0:0:0:0:ffff:c597:9525
197.151.149.38 0:0:0:0:0:ffff:c597:9526
197.151.149.39 0:0:0:0:0:ffff:c597:9527
197.151.149.40 0:0:0:0:0:ffff:c597:9528
197.151.149.41 0:0:0:0:0:ffff:c597:9529
197.151.149.42 0:0:0:0:0:ffff:c597:952a
197.151.149.43 0:0:0:0:0:ffff:c597:952b
197.151.149.44 0:0:0:0:0:ffff:c597:952c
197.151.149.45 0:0:0:0:0:ffff:c597:952d
197.151.149.46 0:0:0:0:0:ffff:c597:952e
197.151.149.47 0:0:0:0:0:ffff:c597:952f
197.151.149.48 0:0:0:0:0:ffff:c597:9530
197.151.149.49 0:0:0:0:0:ffff:c597:9531
197.151.149.50 0:0:0:0:0:ffff:c597:9532
197.151.149.51 0:0:0:0:0:ffff:c597:9533
197.151.149.52 0:0:0:0:0:ffff:c597:9534
197.151.149.53 0:0:0:0:0:ffff:c597:9535
197.151.149.54 0:0:0:0:0:ffff:c597:9536
197.151.149.55 0:0:0:0:0:ffff:c597:9537
197.151.149.56 0:0:0:0:0:ffff:c597:9538
197.151.149.57 0:0:0:0:0:ffff:c597:9539
197.151.149.58 0:0:0:0:0:ffff:c597:953a
197.151.149.59 0:0:0:0:0:ffff:c597:953b
197.151.149.60 0:0:0:0:0:ffff:c597:953c


197.151.149.61 0:0:0:0:0:ffff:c597:953d
197.151.149.62 0:0:0:0:0:ffff:c597:953e
197.151.149.63 0:0:0:0:0:ffff:c597:953f
197.151.149.64 0:0:0:0:0:ffff:c597:9540
197.151.149.65 0:0:0:0:0:ffff:c597:9541
197.151.149.66 0:0:0:0:0:ffff:c597:9542
197.151.149.67 0:0:0:0:0:ffff:c597:9543
197.151.149.68 0:0:0:0:0:ffff:c597:9544
197.151.149.69 0:0:0:0:0:ffff:c597:9545
197.151.149.70 0:0:0:0:0:ffff:c597:9546
197.151.149.71 0:0:0:0:0:ffff:c597:9547
197.151.149.72 0:0:0:0:0:ffff:c597:9548
197.151.149.73 0:0:0:0:0:ffff:c597:9549
197.151.149.74 0:0:0:0:0:ffff:c597:954a
197.151.149.75 0:0:0:0:0:ffff:c597:954b
197.151.149.76 0:0:0:0:0:ffff:c597:954c
197.151.149.77 0:0:0:0:0:ffff:c597:954d
197.151.149.78 0:0:0:0:0:ffff:c597:954e
197.151.149.79 0:0:0:0:0:ffff:c597:954f
197.151.149.80 0:0:0:0:0:ffff:c597:9550
197.151.149.81 0:0:0:0:0:ffff:c597:9551
197.151.149.82 0:0:0:0:0:ffff:c597:9552
197.151.149.83 0:0:0:0:0:ffff:c597:9553
197.151.149.84 0:0:0:0:0:ffff:c597:9554
197.151.149.85 0:0:0:0:0:ffff:c597:9555
197.151.149.86 0:0:0:0:0:ffff:c597:9556
197.151.149.87 0:0:0:0:0:ffff:c597:9557
197.151.149.88 0:0:0:0:0:ffff:c597:9558
197.151.149.89 0:0:0:0:0:ffff:c597:9559
197.151.149.90 0:0:0:0:0:ffff:c597:955a
197.151.149.91 0:0:0:0:0:ffff:c597:955b
197.151.149.92 0:0:0:0:0:ffff:c597:955c
197.151.149.93 0:0:0:0:0:ffff:c597:955d
197.151.149.94 0:0:0:0:0:ffff:c597:955e
197.151.149.95 0:0:0:0:0:ffff:c597:955f
197.151.149.96 0:0:0:0:0:ffff:c597:9560
197.151.149.97 0:0:0:0:0:ffff:c597:9561
197.151.149.98 0:0:0:0:0:ffff:c597:9562
197.151.149.99 0:0:0:0:0:ffff:c597:9563
197.151.149.100 0:0:0:0:0:ffff:c597:9564
197.151.149.101 0:0:0:0:0:ffff:c597:9565
197.151.149.102 0:0:0:0:0:ffff:c597:9566
197.151.149.103 0:0:0:0:0:ffff:c597:9567
197.151.149.104 0:0:0:0:0:ffff:c597:9568
197.151.149.105 0:0:0:0:0:ffff:c597:9569
197.151.149.106 0:0:0:0:0:ffff:c597:956a
197.151.149.107 0:0:0:0:0:ffff:c597:956b
197.151.149.108 0:0:0:0:0:ffff:c597:956c
197.151.149.109 0:0:0:0:0:ffff:c597:956d
197.151.149.110 0:0:0:0:0:ffff:c597:956e
197.151.149.111 0:0:0:0:0:ffff:c597:956f
197.151.149.112 0:0:0:0:0:ffff:c597:9570
197.151.149.113 0:0:0:0:0:ffff:c597:9571
197.151.149.114 0:0:0:0:0:ffff:c597:9572
197.151.149.115 0:0:0:0:0:ffff:c597:9573
197.151.149.116 0:0:0:0:0:ffff:c597:9574
197.151.149.117 0:0:0:0:0:ffff:c597:9575
197.151.149.118 0:0:0:0:0:ffff:c597:9576
197.151.149.119 0:0:0:0:0:ffff:c597:9577
197.151.149.120 0:0:0:0:0:ffff:c597:9578


197.151.149.121 0:0:0:0:0:ffff:c597:9579
197.151.149.122 0:0:0:0:0:ffff:c597:957a
197.151.149.123 0:0:0:0:0:ffff:c597:957b
197.151.149.124 0:0:0:0:0:ffff:c597:957c
197.151.149.125 0:0:0:0:0:ffff:c597:957d
197.151.149.126 0:0:0:0:0:ffff:c597:957e
197.151.149.127 0:0:0:0:0:ffff:c597:957f
197.151.149.128 0:0:0:0:0:ffff:c597:9580
197.151.149.129 0:0:0:0:0:ffff:c597:9581
197.151.149.130 0:0:0:0:0:ffff:c597:9582
197.151.149.131 0:0:0:0:0:ffff:c597:9583
197.151.149.132 0:0:0:0:0:ffff:c597:9584
197.151.149.133 0:0:0:0:0:ffff:c597:9585
197.151.149.134 0:0:0:0:0:ffff:c597:9586
197.151.149.135 0:0:0:0:0:ffff:c597:9587
197.151.149.136 0:0:0:0:0:ffff:c597:9588
197.151.149.137 0:0:0:0:0:ffff:c597:9589
197.151.149.138 0:0:0:0:0:ffff:c597:958a
197.151.149.139 0:0:0:0:0:ffff:c597:958b
197.151.149.140 0:0:0:0:0:ffff:c597:958c
197.151.149.141 0:0:0:0:0:ffff:c597:958d
197.151.149.142 0:0:0:0:0:ffff:c597:958e
197.151.149.143 0:0:0:0:0:ffff:c597:958f
197.151.149.144 0:0:0:0:0:ffff:c597:9590
197.151.149.145 0:0:0:0:0:ffff:c597:9591
197.151.149.146 0:0:0:0:0:ffff:c597:9592
197.151.149.147 0:0:0:0:0:ffff:c597:9593
197.151.149.148 0:0:0:0:0:ffff:c597:9594
197.151.149.149 0:0:0:0:0:ffff:c597:9595
197.151.149.150 0:0:0:0:0:ffff:c597:9596
197.151.149.151 0:0:0:0:0:ffff:c597:9597
197.151.149.152 0:0:0:0:0:ffff:c597:9598
197.151.149.153 0:0:0:0:0:ffff:c597:9599
197.151.149.154 0:0:0:0:0:ffff:c597:959a
197.151.149.155 0:0:0:0:0:ffff:c597:959b
197.151.149.156 0:0:0:0:0:ffff:c597:959c
197.151.149.157 0:0:0:0:0:ffff:c597:959d
197.151.149.158 0:0:0:0:0:ffff:c597:959e
197.151.149.159 0:0:0:0:0:ffff:c597:959f
197.151.149.160 0:0:0:0:0:ffff:c597:95a0
197.151.149.161 0:0:0:0:0:ffff:c597:95a1
197.151.149.162 0:0:0:0:0:ffff:c597:95a2
197.151.149.163 0:0:0:0:0:ffff:c597:95a3
197.151.149.164 0:0:0:0:0:ffff:c597:95a4
197.151.149.165 0:0:0:0:0:ffff:c597:95a5
197.151.149.166 0:0:0:0:0:ffff:c597:95a6
197.151.149.167 0:0:0:0:0:ffff:c597:95a7
197.151.149.168 0:0:0:0:0:ffff:c597:95a8
197.151.149.169 0:0:0:0:0:ffff:c597:95a9
197.151.149.170 0:0:0:0:0:ffff:c597:95aa
197.151.149.171 0:0:0:0:0:ffff:c597:95ab
197.151.149.172 0:0:0:0:0:ffff:c597:95ac
197.151.149.173 0:0:0:0:0:ffff:c597:95ad
197.151.149.174 0:0:0:0:0:ffff:c597:95ae
197.151.149.175 0:0:0:0:0:ffff:c597:95af
197.151.149.176 0:0:0:0:0:ffff:c597:95b0
197.151.149.177 0:0:0:0:0:ffff:c597:95b1
197.151.149.178 0:0:0:0:0:ffff:c597:95b2
197.151.149.179 0:0:0:0:0:ffff:c597:95b3
197.151.149.180 0:0:0:0:0:ffff:c597:95b4


197.151.149.181 0:0:0:0:0:ffff:c597:95b5
197.151.149.182 0:0:0:0:0:ffff:c597:95b6
197.151.149.183 0:0:0:0:0:ffff:c597:95b7
197.151.149.184 0:0:0:0:0:ffff:c597:95b8
197.151.149.185 0:0:0:0:0:ffff:c597:95b9
197.151.149.186 0:0:0:0:0:ffff:c597:95ba
197.151.149.187 0:0:0:0:0:ffff:c597:95bb
197.151.149.188 0:0:0:0:0:ffff:c597:95bc
197.151.149.189 0:0:0:0:0:ffff:c597:95bd
197.151.149.190 0:0:0:0:0:ffff:c597:95be
197.151.149.191 0:0:0:0:0:ffff:c597:95bf
197.151.149.192 0:0:0:0:0:ffff:c597:95c0
197.151.149.193 0:0:0:0:0:ffff:c597:95c1
197.151.149.194 0:0:0:0:0:ffff:c597:95c2
197.151.149.195 0:0:0:0:0:ffff:c597:95c3
197.151.149.196 0:0:0:0:0:ffff:c597:95c4
197.151.149.197 0:0:0:0:0:ffff:c597:95c5
197.151.149.198 0:0:0:0:0:ffff:c597:95c6
197.151.149.199 0:0:0:0:0:ffff:c597:95c7
197.151.149.200 0:0:0:0:0:ffff:c597:95c8
197.151.149.201 0:0:0:0:0:ffff:c597:95c9
197.151.149.202 0:0:0:0:0:ffff:c597:95ca
197.151.149.203 0:0:0:0:0:ffff:c597:95cb
197.151.149.204 0:0:0:0:0:ffff:c597:95cc
197.151.149.205 0:0:0:0:0:ffff:c597:95cd
197.151.149.206 0:0:0:0:0:ffff:c597:95ce
197.151.149.207 0:0:0:0:0:ffff:c597:95cf
197.151.149.208 0:0:0:0:0:ffff:c597:95d0
197.151.149.209 0:0:0:0:0:ffff:c597:95d1
197.151.149.210 0:0:0:0:0:ffff:c597:95d2
197.151.149.211 0:0:0:0:0:ffff:c597:95d3
197.151.149.212 0:0:0:0:0:ffff:c597:95d4
197.151.149.213 0:0:0:0:0:ffff:c597:95d5
197.151.149.214 0:0:0:0:0:ffff:c597:95d6
197.151.149.215 0:0:0:0:0:ffff:c597:95d7
197.151.149.216 0:0:0:0:0:ffff:c597:95d8
197.151.149.217 0:0:0:0:0:ffff:c597:95d9
197.151.149.218 0:0:0:0:0:ffff:c597:95da
197.151.149.219 0:0:0:0:0:ffff:c597:95db
197.151.149.220 0:0:0:0:0:ffff:c597:95dc
197.151.149.221 0:0:0:0:0:ffff:c597:95dd
197.151.149.222 0:0:0:0:0:ffff:c597:95de
197.151.149.223 0:0:0:0:0:ffff:c597:95df
197.151.149.224 0:0:0:0:0:ffff:c597:95e0
197.151.149.225 0:0:0:0:0:ffff:c597:95e1
197.151.149.226 0:0:0:0:0:ffff:c597:95e2
197.151.149.227 0:0:0:0:0:ffff:c597:95e3
197.151.149.228 0:0:0:0:0:ffff:c597:95e4
197.151.149.229 0:0:0:0:0:ffff:c597:95e5
197.151.149.230 0:0:0:0:0:ffff:c597:95e6
197.151.149.231 0:0:0:0:0:ffff:c597:95e7
197.151.149.232 0:0:0:0:0:ffff:c597:95e8
197.151.149.233 0:0:0:0:0:ffff:c597:95e9
197.151.149.234 0:0:0:0:0:ffff:c597:95ea
197.151.149.235 0:0:0:0:0:ffff:c597:95eb
197.151.149.236 0:0:0:0:0:ffff:c597:95ec
197.151.149.237 0:0:0:0:0:ffff:c597:95ed
197.151.149.238 0:0:0:0:0:ffff:c597:95ee
197.151.149.239 0:0:0:0:0:ffff:c597:95ef
197.151.149.240 0:0:0:0:0:ffff:c597:95f0
197.151.149.241 0:0:0:0:0:ffff:c597:95f1
197.151.149.242 0:0:0:0:0:ffff:c597:95f2
197.151.149.243 0:0:0:0:0:ffff:c597:95f3
197.151.149.244 0:0:0:0:0:ffff:c597:95f4
197.151.149.245 0:0:0:0:0:ffff:c597:95f5
197.151.149.246 0:0:0:0:0:ffff:c597:95f6
197.151.149.247 0:0:0:0:0:ffff:c597:95f7
197.151.149.248 0:0:0:0:0:ffff:c597:95f8
197.151.149.249 0:0:0:0:0:ffff:c597:95f9
197.151.149.250 0:0:0:0:0:ffff:c597:95fa
197.151.149.251 0:0:0:0:0:ffff:c597:95fb
197.151.149.252 0:0:0:0:0:ffff:c597:95fc
197.151.149.253 0:0:0:0:0:ffff:c597:95fd
197.151.149.254 0:0:0:0:0:ffff:c597:95fe
197.151.149.255 0:0:0:0:0:ffff:c597:95ff


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.