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
65.121.42.1 0:0:0:0:0:ffff:4179:2a01
65.121.42.2 0:0:0:0:0:ffff:4179:2a02
65.121.42.3 0:0:0:0:0:ffff:4179:2a03
65.121.42.4 0:0:0:0:0:ffff:4179:2a04
65.121.42.5 0:0:0:0:0:ffff:4179:2a05
65.121.42.6 0:0:0:0:0:ffff:4179:2a06
65.121.42.7 0:0:0:0:0:ffff:4179:2a07
65.121.42.8 0:0:0:0:0:ffff:4179:2a08
65.121.42.9 0:0:0:0:0:ffff:4179:2a09
65.121.42.10 0:0:0:0:0:ffff:4179:2a0a
65.121.42.11 0:0:0:0:0:ffff:4179:2a0b
65.121.42.12 0:0:0:0:0:ffff:4179:2a0c
65.121.42.13 0:0:0:0:0:ffff:4179:2a0d
65.121.42.14 0:0:0:0:0:ffff:4179:2a0e
65.121.42.15 0:0:0:0:0:ffff:4179:2a0f
65.121.42.16 0:0:0:0:0:ffff:4179:2a10
65.121.42.17 0:0:0:0:0:ffff:4179:2a11
65.121.42.18 0:0:0:0:0:ffff:4179:2a12
65.121.42.19 0:0:0:0:0:ffff:4179:2a13
65.121.42.20 0:0:0:0:0:ffff:4179:2a14
65.121.42.21 0:0:0:0:0:ffff:4179:2a15
65.121.42.22 0:0:0:0:0:ffff:4179:2a16
65.121.42.23 0:0:0:0:0:ffff:4179:2a17
65.121.42.24 0:0:0:0:0:ffff:4179:2a18
65.121.42.25 0:0:0:0:0:ffff:4179:2a19
65.121.42.26 0:0:0:0:0:ffff:4179:2a1a
65.121.42.27 0:0:0:0:0:ffff:4179:2a1b
65.121.42.28 0:0:0:0:0:ffff:4179:2a1c
65.121.42.29 0:0:0:0:0:ffff:4179:2a1d
65.121.42.30 0:0:0:0:0:ffff:4179:2a1e
65.121.42.31 0:0:0:0:0:ffff:4179:2a1f
65.121.42.32 0:0:0:0:0:ffff:4179:2a20
65.121.42.33 0:0:0:0:0:ffff:4179:2a21
65.121.42.34 0:0:0:0:0:ffff:4179:2a22
65.121.42.35 0:0:0:0:0:ffff:4179:2a23
65.121.42.36 0:0:0:0:0:ffff:4179:2a24
65.121.42.37 0:0:0:0:0:ffff:4179:2a25
65.121.42.38 0:0:0:0:0:ffff:4179:2a26
65.121.42.39 0:0:0:0:0:ffff:4179:2a27
65.121.42.40 0:0:0:0:0:ffff:4179:2a28
65.121.42.41 0:0:0:0:0:ffff:4179:2a29
65.121.42.42 0:0:0:0:0:ffff:4179:2a2a
65.121.42.43 0:0:0:0:0:ffff:4179:2a2b
65.121.42.44 0:0:0:0:0:ffff:4179:2a2c
65.121.42.45 0:0:0:0:0:ffff:4179:2a2d
65.121.42.46 0:0:0:0:0:ffff:4179:2a2e
65.121.42.47 0:0:0:0:0:ffff:4179:2a2f
65.121.42.48 0:0:0:0:0:ffff:4179:2a30
65.121.42.49 0:0:0:0:0:ffff:4179:2a31
65.121.42.50 0:0:0:0:0:ffff:4179:2a32
65.121.42.51 0:0:0:0:0:ffff:4179:2a33
65.121.42.52 0:0:0:0:0:ffff:4179:2a34
65.121.42.53 0:0:0:0:0:ffff:4179:2a35
65.121.42.54 0:0:0:0:0:ffff:4179:2a36
65.121.42.55 0:0:0:0:0:ffff:4179:2a37
65.121.42.56 0:0:0:0:0:ffff:4179:2a38
65.121.42.57 0:0:0:0:0:ffff:4179:2a39
65.121.42.58 0:0:0:0:0:ffff:4179:2a3a
65.121.42.59 0:0:0:0:0:ffff:4179:2a3b
65.121.42.60 0:0:0:0:0:ffff:4179:2a3c


65.121.42.61 0:0:0:0:0:ffff:4179:2a3d
65.121.42.62 0:0:0:0:0:ffff:4179:2a3e
65.121.42.63 0:0:0:0:0:ffff:4179:2a3f
65.121.42.64 0:0:0:0:0:ffff:4179:2a40
65.121.42.65 0:0:0:0:0:ffff:4179:2a41
65.121.42.66 0:0:0:0:0:ffff:4179:2a42
65.121.42.67 0:0:0:0:0:ffff:4179:2a43
65.121.42.68 0:0:0:0:0:ffff:4179:2a44
65.121.42.69 0:0:0:0:0:ffff:4179:2a45
65.121.42.70 0:0:0:0:0:ffff:4179:2a46
65.121.42.71 0:0:0:0:0:ffff:4179:2a47
65.121.42.72 0:0:0:0:0:ffff:4179:2a48
65.121.42.73 0:0:0:0:0:ffff:4179:2a49
65.121.42.74 0:0:0:0:0:ffff:4179:2a4a
65.121.42.75 0:0:0:0:0:ffff:4179:2a4b
65.121.42.76 0:0:0:0:0:ffff:4179:2a4c
65.121.42.77 0:0:0:0:0:ffff:4179:2a4d
65.121.42.78 0:0:0:0:0:ffff:4179:2a4e
65.121.42.79 0:0:0:0:0:ffff:4179:2a4f
65.121.42.80 0:0:0:0:0:ffff:4179:2a50
65.121.42.81 0:0:0:0:0:ffff:4179:2a51
65.121.42.82 0:0:0:0:0:ffff:4179:2a52
65.121.42.83 0:0:0:0:0:ffff:4179:2a53
65.121.42.84 0:0:0:0:0:ffff:4179:2a54
65.121.42.85 0:0:0:0:0:ffff:4179:2a55
65.121.42.86 0:0:0:0:0:ffff:4179:2a56
65.121.42.87 0:0:0:0:0:ffff:4179:2a57
65.121.42.88 0:0:0:0:0:ffff:4179:2a58
65.121.42.89 0:0:0:0:0:ffff:4179:2a59
65.121.42.90 0:0:0:0:0:ffff:4179:2a5a
65.121.42.91 0:0:0:0:0:ffff:4179:2a5b
65.121.42.92 0:0:0:0:0:ffff:4179:2a5c
65.121.42.93 0:0:0:0:0:ffff:4179:2a5d
65.121.42.94 0:0:0:0:0:ffff:4179:2a5e
65.121.42.95 0:0:0:0:0:ffff:4179:2a5f
65.121.42.96 0:0:0:0:0:ffff:4179:2a60
65.121.42.97 0:0:0:0:0:ffff:4179:2a61
65.121.42.98 0:0:0:0:0:ffff:4179:2a62
65.121.42.99 0:0:0:0:0:ffff:4179:2a63
65.121.42.100 0:0:0:0:0:ffff:4179:2a64
65.121.42.101 0:0:0:0:0:ffff:4179:2a65
65.121.42.102 0:0:0:0:0:ffff:4179:2a66
65.121.42.103 0:0:0:0:0:ffff:4179:2a67
65.121.42.104 0:0:0:0:0:ffff:4179:2a68
65.121.42.105 0:0:0:0:0:ffff:4179:2a69
65.121.42.106 0:0:0:0:0:ffff:4179:2a6a
65.121.42.107 0:0:0:0:0:ffff:4179:2a6b
65.121.42.108 0:0:0:0:0:ffff:4179:2a6c
65.121.42.109 0:0:0:0:0:ffff:4179:2a6d
65.121.42.110 0:0:0:0:0:ffff:4179:2a6e
65.121.42.111 0:0:0:0:0:ffff:4179:2a6f
65.121.42.112 0:0:0:0:0:ffff:4179:2a70
65.121.42.113 0:0:0:0:0:ffff:4179:2a71
65.121.42.114 0:0:0:0:0:ffff:4179:2a72
65.121.42.115 0:0:0:0:0:ffff:4179:2a73
65.121.42.116 0:0:0:0:0:ffff:4179:2a74
65.121.42.117 0:0:0:0:0:ffff:4179:2a75
65.121.42.118 0:0:0:0:0:ffff:4179:2a76
65.121.42.119 0:0:0:0:0:ffff:4179:2a77
65.121.42.120 0:0:0:0:0:ffff:4179:2a78


65.121.42.121 0:0:0:0:0:ffff:4179:2a79
65.121.42.122 0:0:0:0:0:ffff:4179:2a7a
65.121.42.123 0:0:0:0:0:ffff:4179:2a7b
65.121.42.124 0:0:0:0:0:ffff:4179:2a7c
65.121.42.125 0:0:0:0:0:ffff:4179:2a7d
65.121.42.126 0:0:0:0:0:ffff:4179:2a7e
65.121.42.127 0:0:0:0:0:ffff:4179:2a7f
65.121.42.128 0:0:0:0:0:ffff:4179:2a80
65.121.42.129 0:0:0:0:0:ffff:4179:2a81
65.121.42.130 0:0:0:0:0:ffff:4179:2a82
65.121.42.131 0:0:0:0:0:ffff:4179:2a83
65.121.42.132 0:0:0:0:0:ffff:4179:2a84
65.121.42.133 0:0:0:0:0:ffff:4179:2a85
65.121.42.134 0:0:0:0:0:ffff:4179:2a86
65.121.42.135 0:0:0:0:0:ffff:4179:2a87
65.121.42.136 0:0:0:0:0:ffff:4179:2a88
65.121.42.137 0:0:0:0:0:ffff:4179:2a89
65.121.42.138 0:0:0:0:0:ffff:4179:2a8a
65.121.42.139 0:0:0:0:0:ffff:4179:2a8b
65.121.42.140 0:0:0:0:0:ffff:4179:2a8c
65.121.42.141 0:0:0:0:0:ffff:4179:2a8d
65.121.42.142 0:0:0:0:0:ffff:4179:2a8e
65.121.42.143 0:0:0:0:0:ffff:4179:2a8f
65.121.42.144 0:0:0:0:0:ffff:4179:2a90
65.121.42.145 0:0:0:0:0:ffff:4179:2a91
65.121.42.146 0:0:0:0:0:ffff:4179:2a92
65.121.42.147 0:0:0:0:0:ffff:4179:2a93
65.121.42.148 0:0:0:0:0:ffff:4179:2a94
65.121.42.149 0:0:0:0:0:ffff:4179:2a95
65.121.42.150 0:0:0:0:0:ffff:4179:2a96
65.121.42.151 0:0:0:0:0:ffff:4179:2a97
65.121.42.152 0:0:0:0:0:ffff:4179:2a98
65.121.42.153 0:0:0:0:0:ffff:4179:2a99
65.121.42.154 0:0:0:0:0:ffff:4179:2a9a
65.121.42.155 0:0:0:0:0:ffff:4179:2a9b
65.121.42.156 0:0:0:0:0:ffff:4179:2a9c
65.121.42.157 0:0:0:0:0:ffff:4179:2a9d
65.121.42.158 0:0:0:0:0:ffff:4179:2a9e
65.121.42.159 0:0:0:0:0:ffff:4179:2a9f
65.121.42.160 0:0:0:0:0:ffff:4179:2aa0
65.121.42.161 0:0:0:0:0:ffff:4179:2aa1
65.121.42.162 0:0:0:0:0:ffff:4179:2aa2
65.121.42.163 0:0:0:0:0:ffff:4179:2aa3
65.121.42.164 0:0:0:0:0:ffff:4179:2aa4
65.121.42.165 0:0:0:0:0:ffff:4179:2aa5
65.121.42.166 0:0:0:0:0:ffff:4179:2aa6
65.121.42.167 0:0:0:0:0:ffff:4179:2aa7
65.121.42.168 0:0:0:0:0:ffff:4179:2aa8
65.121.42.169 0:0:0:0:0:ffff:4179:2aa9
65.121.42.170 0:0:0:0:0:ffff:4179:2aaa
65.121.42.171 0:0:0:0:0:ffff:4179:2aab
65.121.42.172 0:0:0:0:0:ffff:4179:2aac
65.121.42.173 0:0:0:0:0:ffff:4179:2aad
65.121.42.174 0:0:0:0:0:ffff:4179:2aae
65.121.42.175 0:0:0:0:0:ffff:4179:2aaf
65.121.42.176 0:0:0:0:0:ffff:4179:2ab0
65.121.42.177 0:0:0:0:0:ffff:4179:2ab1
65.121.42.178 0:0:0:0:0:ffff:4179:2ab2
65.121.42.179 0:0:0:0:0:ffff:4179:2ab3
65.121.42.180 0:0:0:0:0:ffff:4179:2ab4


65.121.42.181 0:0:0:0:0:ffff:4179:2ab5
65.121.42.182 0:0:0:0:0:ffff:4179:2ab6
65.121.42.183 0:0:0:0:0:ffff:4179:2ab7
65.121.42.184 0:0:0:0:0:ffff:4179:2ab8
65.121.42.185 0:0:0:0:0:ffff:4179:2ab9
65.121.42.186 0:0:0:0:0:ffff:4179:2aba
65.121.42.187 0:0:0:0:0:ffff:4179:2abb
65.121.42.188 0:0:0:0:0:ffff:4179:2abc
65.121.42.189 0:0:0:0:0:ffff:4179:2abd
65.121.42.190 0:0:0:0:0:ffff:4179:2abe
65.121.42.191 0:0:0:0:0:ffff:4179:2abf
65.121.42.192 0:0:0:0:0:ffff:4179:2ac0
65.121.42.193 0:0:0:0:0:ffff:4179:2ac1
65.121.42.194 0:0:0:0:0:ffff:4179:2ac2
65.121.42.195 0:0:0:0:0:ffff:4179:2ac3
65.121.42.196 0:0:0:0:0:ffff:4179:2ac4
65.121.42.197 0:0:0:0:0:ffff:4179:2ac5
65.121.42.198 0:0:0:0:0:ffff:4179:2ac6
65.121.42.199 0:0:0:0:0:ffff:4179:2ac7
65.121.42.200 0:0:0:0:0:ffff:4179:2ac8
65.121.42.201 0:0:0:0:0:ffff:4179:2ac9
65.121.42.202 0:0:0:0:0:ffff:4179:2aca
65.121.42.203 0:0:0:0:0:ffff:4179:2acb
65.121.42.204 0:0:0:0:0:ffff:4179:2acc
65.121.42.205 0:0:0:0:0:ffff:4179:2acd
65.121.42.206 0:0:0:0:0:ffff:4179:2ace
65.121.42.207 0:0:0:0:0:ffff:4179:2acf
65.121.42.208 0:0:0:0:0:ffff:4179:2ad0
65.121.42.209 0:0:0:0:0:ffff:4179:2ad1
65.121.42.210 0:0:0:0:0:ffff:4179:2ad2
65.121.42.211 0:0:0:0:0:ffff:4179:2ad3
65.121.42.212 0:0:0:0:0:ffff:4179:2ad4
65.121.42.213 0:0:0:0:0:ffff:4179:2ad5
65.121.42.214 0:0:0:0:0:ffff:4179:2ad6
65.121.42.215 0:0:0:0:0:ffff:4179:2ad7
65.121.42.216 0:0:0:0:0:ffff:4179:2ad8
65.121.42.217 0:0:0:0:0:ffff:4179:2ad9
65.121.42.218 0:0:0:0:0:ffff:4179:2ada
65.121.42.219 0:0:0:0:0:ffff:4179:2adb
65.121.42.220 0:0:0:0:0:ffff:4179:2adc
65.121.42.221 0:0:0:0:0:ffff:4179:2add
65.121.42.222 0:0:0:0:0:ffff:4179:2ade
65.121.42.223 0:0:0:0:0:ffff:4179:2adf
65.121.42.224 0:0:0:0:0:ffff:4179:2ae0
65.121.42.225 0:0:0:0:0:ffff:4179:2ae1
65.121.42.226 0:0:0:0:0:ffff:4179:2ae2
65.121.42.227 0:0:0:0:0:ffff:4179:2ae3
65.121.42.228 0:0:0:0:0:ffff:4179:2ae4
65.121.42.229 0:0:0:0:0:ffff:4179:2ae5
65.121.42.230 0:0:0:0:0:ffff:4179:2ae6
65.121.42.231 0:0:0:0:0:ffff:4179:2ae7
65.121.42.232 0:0:0:0:0:ffff:4179:2ae8
65.121.42.233 0:0:0:0:0:ffff:4179:2ae9
65.121.42.234 0:0:0:0:0:ffff:4179:2aea
65.121.42.235 0:0:0:0:0:ffff:4179:2aeb
65.121.42.236 0:0:0:0:0:ffff:4179:2aec
65.121.42.237 0:0:0:0:0:ffff:4179:2aed
65.121.42.238 0:0:0:0:0:ffff:4179:2aee
65.121.42.239 0:0:0:0:0:ffff:4179:2aef
65.121.42.240 0:0:0:0:0:ffff:4179:2af0
65.121.42.241 0:0:0:0:0:ffff:4179:2af1
65.121.42.242 0:0:0:0:0:ffff:4179:2af2
65.121.42.243 0:0:0:0:0:ffff:4179:2af3
65.121.42.244 0:0:0:0:0:ffff:4179:2af4
65.121.42.245 0:0:0:0:0:ffff:4179:2af5
65.121.42.246 0:0:0:0:0:ffff:4179:2af6
65.121.42.247 0:0:0:0:0:ffff:4179:2af7
65.121.42.248 0:0:0:0:0:ffff:4179:2af8
65.121.42.249 0:0:0:0:0:ffff:4179:2af9
65.121.42.250 0:0:0:0:0:ffff:4179:2afa
65.121.42.251 0:0:0:0:0:ffff:4179:2afb
65.121.42.252 0:0:0:0:0:ffff:4179:2afc
65.121.42.253 0:0:0:0:0:ffff:4179:2afd
65.121.42.254 0:0:0:0:0:ffff:4179:2afe
65.121.42.255 0:0:0:0:0:ffff:4179:2aff


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.