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
65.121.106.1 0:0:0:0:0:ffff:4179:6a01
65.121.106.2 0:0:0:0:0:ffff:4179:6a02
65.121.106.3 0:0:0:0:0:ffff:4179:6a03
65.121.106.4 0:0:0:0:0:ffff:4179:6a04
65.121.106.5 0:0:0:0:0:ffff:4179:6a05
65.121.106.6 0:0:0:0:0:ffff:4179:6a06
65.121.106.7 0:0:0:0:0:ffff:4179:6a07
65.121.106.8 0:0:0:0:0:ffff:4179:6a08
65.121.106.9 0:0:0:0:0:ffff:4179:6a09
65.121.106.10 0:0:0:0:0:ffff:4179:6a0a
65.121.106.11 0:0:0:0:0:ffff:4179:6a0b
65.121.106.12 0:0:0:0:0:ffff:4179:6a0c
65.121.106.13 0:0:0:0:0:ffff:4179:6a0d
65.121.106.14 0:0:0:0:0:ffff:4179:6a0e
65.121.106.15 0:0:0:0:0:ffff:4179:6a0f
65.121.106.16 0:0:0:0:0:ffff:4179:6a10
65.121.106.17 0:0:0:0:0:ffff:4179:6a11
65.121.106.18 0:0:0:0:0:ffff:4179:6a12
65.121.106.19 0:0:0:0:0:ffff:4179:6a13
65.121.106.20 0:0:0:0:0:ffff:4179:6a14
65.121.106.21 0:0:0:0:0:ffff:4179:6a15
65.121.106.22 0:0:0:0:0:ffff:4179:6a16
65.121.106.23 0:0:0:0:0:ffff:4179:6a17
65.121.106.24 0:0:0:0:0:ffff:4179:6a18
65.121.106.25 0:0:0:0:0:ffff:4179:6a19
65.121.106.26 0:0:0:0:0:ffff:4179:6a1a
65.121.106.27 0:0:0:0:0:ffff:4179:6a1b
65.121.106.28 0:0:0:0:0:ffff:4179:6a1c
65.121.106.29 0:0:0:0:0:ffff:4179:6a1d
65.121.106.30 0:0:0:0:0:ffff:4179:6a1e
65.121.106.31 0:0:0:0:0:ffff:4179:6a1f
65.121.106.32 0:0:0:0:0:ffff:4179:6a20
65.121.106.33 0:0:0:0:0:ffff:4179:6a21
65.121.106.34 0:0:0:0:0:ffff:4179:6a22
65.121.106.35 0:0:0:0:0:ffff:4179:6a23
65.121.106.36 0:0:0:0:0:ffff:4179:6a24
65.121.106.37 0:0:0:0:0:ffff:4179:6a25
65.121.106.38 0:0:0:0:0:ffff:4179:6a26
65.121.106.39 0:0:0:0:0:ffff:4179:6a27
65.121.106.40 0:0:0:0:0:ffff:4179:6a28
65.121.106.41 0:0:0:0:0:ffff:4179:6a29
65.121.106.42 0:0:0:0:0:ffff:4179:6a2a
65.121.106.43 0:0:0:0:0:ffff:4179:6a2b
65.121.106.44 0:0:0:0:0:ffff:4179:6a2c
65.121.106.45 0:0:0:0:0:ffff:4179:6a2d
65.121.106.46 0:0:0:0:0:ffff:4179:6a2e
65.121.106.47 0:0:0:0:0:ffff:4179:6a2f
65.121.106.48 0:0:0:0:0:ffff:4179:6a30
65.121.106.49 0:0:0:0:0:ffff:4179:6a31
65.121.106.50 0:0:0:0:0:ffff:4179:6a32
65.121.106.51 0:0:0:0:0:ffff:4179:6a33
65.121.106.52 0:0:0:0:0:ffff:4179:6a34
65.121.106.53 0:0:0:0:0:ffff:4179:6a35
65.121.106.54 0:0:0:0:0:ffff:4179:6a36
65.121.106.55 0:0:0:0:0:ffff:4179:6a37
65.121.106.56 0:0:0:0:0:ffff:4179:6a38
65.121.106.57 0:0:0:0:0:ffff:4179:6a39
65.121.106.58 0:0:0:0:0:ffff:4179:6a3a
65.121.106.59 0:0:0:0:0:ffff:4179:6a3b
65.121.106.60 0:0:0:0:0:ffff:4179:6a3c


65.121.106.61 0:0:0:0:0:ffff:4179:6a3d
65.121.106.62 0:0:0:0:0:ffff:4179:6a3e
65.121.106.63 0:0:0:0:0:ffff:4179:6a3f
65.121.106.64 0:0:0:0:0:ffff:4179:6a40
65.121.106.65 0:0:0:0:0:ffff:4179:6a41
65.121.106.66 0:0:0:0:0:ffff:4179:6a42
65.121.106.67 0:0:0:0:0:ffff:4179:6a43
65.121.106.68 0:0:0:0:0:ffff:4179:6a44
65.121.106.69 0:0:0:0:0:ffff:4179:6a45
65.121.106.70 0:0:0:0:0:ffff:4179:6a46
65.121.106.71 0:0:0:0:0:ffff:4179:6a47
65.121.106.72 0:0:0:0:0:ffff:4179:6a48
65.121.106.73 0:0:0:0:0:ffff:4179:6a49
65.121.106.74 0:0:0:0:0:ffff:4179:6a4a
65.121.106.75 0:0:0:0:0:ffff:4179:6a4b
65.121.106.76 0:0:0:0:0:ffff:4179:6a4c
65.121.106.77 0:0:0:0:0:ffff:4179:6a4d
65.121.106.78 0:0:0:0:0:ffff:4179:6a4e
65.121.106.79 0:0:0:0:0:ffff:4179:6a4f
65.121.106.80 0:0:0:0:0:ffff:4179:6a50
65.121.106.81 0:0:0:0:0:ffff:4179:6a51
65.121.106.82 0:0:0:0:0:ffff:4179:6a52
65.121.106.83 0:0:0:0:0:ffff:4179:6a53
65.121.106.84 0:0:0:0:0:ffff:4179:6a54
65.121.106.85 0:0:0:0:0:ffff:4179:6a55
65.121.106.86 0:0:0:0:0:ffff:4179:6a56
65.121.106.87 0:0:0:0:0:ffff:4179:6a57
65.121.106.88 0:0:0:0:0:ffff:4179:6a58
65.121.106.89 0:0:0:0:0:ffff:4179:6a59
65.121.106.90 0:0:0:0:0:ffff:4179:6a5a
65.121.106.91 0:0:0:0:0:ffff:4179:6a5b
65.121.106.92 0:0:0:0:0:ffff:4179:6a5c
65.121.106.93 0:0:0:0:0:ffff:4179:6a5d
65.121.106.94 0:0:0:0:0:ffff:4179:6a5e
65.121.106.95 0:0:0:0:0:ffff:4179:6a5f
65.121.106.96 0:0:0:0:0:ffff:4179:6a60
65.121.106.97 0:0:0:0:0:ffff:4179:6a61
65.121.106.98 0:0:0:0:0:ffff:4179:6a62
65.121.106.99 0:0:0:0:0:ffff:4179:6a63
65.121.106.100 0:0:0:0:0:ffff:4179:6a64
65.121.106.101 0:0:0:0:0:ffff:4179:6a65
65.121.106.102 0:0:0:0:0:ffff:4179:6a66
65.121.106.103 0:0:0:0:0:ffff:4179:6a67
65.121.106.104 0:0:0:0:0:ffff:4179:6a68
65.121.106.105 0:0:0:0:0:ffff:4179:6a69
65.121.106.106 0:0:0:0:0:ffff:4179:6a6a
65.121.106.107 0:0:0:0:0:ffff:4179:6a6b
65.121.106.108 0:0:0:0:0:ffff:4179:6a6c
65.121.106.109 0:0:0:0:0:ffff:4179:6a6d
65.121.106.110 0:0:0:0:0:ffff:4179:6a6e
65.121.106.111 0:0:0:0:0:ffff:4179:6a6f
65.121.106.112 0:0:0:0:0:ffff:4179:6a70
65.121.106.113 0:0:0:0:0:ffff:4179:6a71
65.121.106.114 0:0:0:0:0:ffff:4179:6a72
65.121.106.115 0:0:0:0:0:ffff:4179:6a73
65.121.106.116 0:0:0:0:0:ffff:4179:6a74
65.121.106.117 0:0:0:0:0:ffff:4179:6a75
65.121.106.118 0:0:0:0:0:ffff:4179:6a76
65.121.106.119 0:0:0:0:0:ffff:4179:6a77
65.121.106.120 0:0:0:0:0:ffff:4179:6a78


65.121.106.121 0:0:0:0:0:ffff:4179:6a79
65.121.106.122 0:0:0:0:0:ffff:4179:6a7a
65.121.106.123 0:0:0:0:0:ffff:4179:6a7b
65.121.106.124 0:0:0:0:0:ffff:4179:6a7c
65.121.106.125 0:0:0:0:0:ffff:4179:6a7d
65.121.106.126 0:0:0:0:0:ffff:4179:6a7e
65.121.106.127 0:0:0:0:0:ffff:4179:6a7f
65.121.106.128 0:0:0:0:0:ffff:4179:6a80
65.121.106.129 0:0:0:0:0:ffff:4179:6a81
65.121.106.130 0:0:0:0:0:ffff:4179:6a82
65.121.106.131 0:0:0:0:0:ffff:4179:6a83
65.121.106.132 0:0:0:0:0:ffff:4179:6a84
65.121.106.133 0:0:0:0:0:ffff:4179:6a85
65.121.106.134 0:0:0:0:0:ffff:4179:6a86
65.121.106.135 0:0:0:0:0:ffff:4179:6a87
65.121.106.136 0:0:0:0:0:ffff:4179:6a88
65.121.106.137 0:0:0:0:0:ffff:4179:6a89
65.121.106.138 0:0:0:0:0:ffff:4179:6a8a
65.121.106.139 0:0:0:0:0:ffff:4179:6a8b
65.121.106.140 0:0:0:0:0:ffff:4179:6a8c
65.121.106.141 0:0:0:0:0:ffff:4179:6a8d
65.121.106.142 0:0:0:0:0:ffff:4179:6a8e
65.121.106.143 0:0:0:0:0:ffff:4179:6a8f
65.121.106.144 0:0:0:0:0:ffff:4179:6a90
65.121.106.145 0:0:0:0:0:ffff:4179:6a91
65.121.106.146 0:0:0:0:0:ffff:4179:6a92
65.121.106.147 0:0:0:0:0:ffff:4179:6a93
65.121.106.148 0:0:0:0:0:ffff:4179:6a94
65.121.106.149 0:0:0:0:0:ffff:4179:6a95
65.121.106.150 0:0:0:0:0:ffff:4179:6a96
65.121.106.151 0:0:0:0:0:ffff:4179:6a97
65.121.106.152 0:0:0:0:0:ffff:4179:6a98
65.121.106.153 0:0:0:0:0:ffff:4179:6a99
65.121.106.154 0:0:0:0:0:ffff:4179:6a9a
65.121.106.155 0:0:0:0:0:ffff:4179:6a9b
65.121.106.156 0:0:0:0:0:ffff:4179:6a9c
65.121.106.157 0:0:0:0:0:ffff:4179:6a9d
65.121.106.158 0:0:0:0:0:ffff:4179:6a9e
65.121.106.159 0:0:0:0:0:ffff:4179:6a9f
65.121.106.160 0:0:0:0:0:ffff:4179:6aa0
65.121.106.161 0:0:0:0:0:ffff:4179:6aa1
65.121.106.162 0:0:0:0:0:ffff:4179:6aa2
65.121.106.163 0:0:0:0:0:ffff:4179:6aa3
65.121.106.164 0:0:0:0:0:ffff:4179:6aa4
65.121.106.165 0:0:0:0:0:ffff:4179:6aa5
65.121.106.166 0:0:0:0:0:ffff:4179:6aa6
65.121.106.167 0:0:0:0:0:ffff:4179:6aa7
65.121.106.168 0:0:0:0:0:ffff:4179:6aa8
65.121.106.169 0:0:0:0:0:ffff:4179:6aa9
65.121.106.170 0:0:0:0:0:ffff:4179:6aaa
65.121.106.171 0:0:0:0:0:ffff:4179:6aab
65.121.106.172 0:0:0:0:0:ffff:4179:6aac
65.121.106.173 0:0:0:0:0:ffff:4179:6aad
65.121.106.174 0:0:0:0:0:ffff:4179:6aae
65.121.106.175 0:0:0:0:0:ffff:4179:6aaf
65.121.106.176 0:0:0:0:0:ffff:4179:6ab0
65.121.106.177 0:0:0:0:0:ffff:4179:6ab1
65.121.106.178 0:0:0:0:0:ffff:4179:6ab2
65.121.106.179 0:0:0:0:0:ffff:4179:6ab3
65.121.106.180 0:0:0:0:0:ffff:4179:6ab4


65.121.106.181 0:0:0:0:0:ffff:4179:6ab5
65.121.106.182 0:0:0:0:0:ffff:4179:6ab6
65.121.106.183 0:0:0:0:0:ffff:4179:6ab7
65.121.106.184 0:0:0:0:0:ffff:4179:6ab8
65.121.106.185 0:0:0:0:0:ffff:4179:6ab9
65.121.106.186 0:0:0:0:0:ffff:4179:6aba
65.121.106.187 0:0:0:0:0:ffff:4179:6abb
65.121.106.188 0:0:0:0:0:ffff:4179:6abc
65.121.106.189 0:0:0:0:0:ffff:4179:6abd
65.121.106.190 0:0:0:0:0:ffff:4179:6abe
65.121.106.191 0:0:0:0:0:ffff:4179:6abf
65.121.106.192 0:0:0:0:0:ffff:4179:6ac0
65.121.106.193 0:0:0:0:0:ffff:4179:6ac1
65.121.106.194 0:0:0:0:0:ffff:4179:6ac2
65.121.106.195 0:0:0:0:0:ffff:4179:6ac3
65.121.106.196 0:0:0:0:0:ffff:4179:6ac4
65.121.106.197 0:0:0:0:0:ffff:4179:6ac5
65.121.106.198 0:0:0:0:0:ffff:4179:6ac6
65.121.106.199 0:0:0:0:0:ffff:4179:6ac7
65.121.106.200 0:0:0:0:0:ffff:4179:6ac8
65.121.106.201 0:0:0:0:0:ffff:4179:6ac9
65.121.106.202 0:0:0:0:0:ffff:4179:6aca
65.121.106.203 0:0:0:0:0:ffff:4179:6acb
65.121.106.204 0:0:0:0:0:ffff:4179:6acc
65.121.106.205 0:0:0:0:0:ffff:4179:6acd
65.121.106.206 0:0:0:0:0:ffff:4179:6ace
65.121.106.207 0:0:0:0:0:ffff:4179:6acf
65.121.106.208 0:0:0:0:0:ffff:4179:6ad0
65.121.106.209 0:0:0:0:0:ffff:4179:6ad1
65.121.106.210 0:0:0:0:0:ffff:4179:6ad2
65.121.106.211 0:0:0:0:0:ffff:4179:6ad3
65.121.106.212 0:0:0:0:0:ffff:4179:6ad4
65.121.106.213 0:0:0:0:0:ffff:4179:6ad5
65.121.106.214 0:0:0:0:0:ffff:4179:6ad6
65.121.106.215 0:0:0:0:0:ffff:4179:6ad7
65.121.106.216 0:0:0:0:0:ffff:4179:6ad8
65.121.106.217 0:0:0:0:0:ffff:4179:6ad9
65.121.106.218 0:0:0:0:0:ffff:4179:6ada
65.121.106.219 0:0:0:0:0:ffff:4179:6adb
65.121.106.220 0:0:0:0:0:ffff:4179:6adc
65.121.106.221 0:0:0:0:0:ffff:4179:6add
65.121.106.222 0:0:0:0:0:ffff:4179:6ade
65.121.106.223 0:0:0:0:0:ffff:4179:6adf
65.121.106.224 0:0:0:0:0:ffff:4179:6ae0
65.121.106.225 0:0:0:0:0:ffff:4179:6ae1
65.121.106.226 0:0:0:0:0:ffff:4179:6ae2
65.121.106.227 0:0:0:0:0:ffff:4179:6ae3
65.121.106.228 0:0:0:0:0:ffff:4179:6ae4
65.121.106.229 0:0:0:0:0:ffff:4179:6ae5
65.121.106.230 0:0:0:0:0:ffff:4179:6ae6
65.121.106.231 0:0:0:0:0:ffff:4179:6ae7
65.121.106.232 0:0:0:0:0:ffff:4179:6ae8
65.121.106.233 0:0:0:0:0:ffff:4179:6ae9
65.121.106.234 0:0:0:0:0:ffff:4179:6aea
65.121.106.235 0:0:0:0:0:ffff:4179:6aeb
65.121.106.236 0:0:0:0:0:ffff:4179:6aec
65.121.106.237 0:0:0:0:0:ffff:4179:6aed
65.121.106.238 0:0:0:0:0:ffff:4179:6aee
65.121.106.239 0:0:0:0:0:ffff:4179:6aef
65.121.106.240 0:0:0:0:0:ffff:4179:6af0
65.121.106.241 0:0:0:0:0:ffff:4179:6af1
65.121.106.242 0:0:0:0:0:ffff:4179:6af2
65.121.106.243 0:0:0:0:0:ffff:4179:6af3
65.121.106.244 0:0:0:0:0:ffff:4179:6af4
65.121.106.245 0:0:0:0:0:ffff:4179:6af5
65.121.106.246 0:0:0:0:0:ffff:4179:6af6
65.121.106.247 0:0:0:0:0:ffff:4179:6af7
65.121.106.248 0:0:0:0:0:ffff:4179:6af8
65.121.106.249 0:0:0:0:0:ffff:4179:6af9
65.121.106.250 0:0:0:0:0:ffff:4179:6afa
65.121.106.251 0:0:0:0:0:ffff:4179:6afb
65.121.106.252 0:0:0:0:0:ffff:4179:6afc
65.121.106.253 0:0:0:0:0:ffff:4179:6afd
65.121.106.254 0:0:0:0:0:ffff:4179:6afe
65.121.106.255 0:0:0:0:0:ffff:4179:6aff


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.