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
65.121.140.1 0:0:0:0:0:ffff:4179:8c01
65.121.140.2 0:0:0:0:0:ffff:4179:8c02
65.121.140.3 0:0:0:0:0:ffff:4179:8c03
65.121.140.4 0:0:0:0:0:ffff:4179:8c04
65.121.140.5 0:0:0:0:0:ffff:4179:8c05
65.121.140.6 0:0:0:0:0:ffff:4179:8c06
65.121.140.7 0:0:0:0:0:ffff:4179:8c07
65.121.140.8 0:0:0:0:0:ffff:4179:8c08
65.121.140.9 0:0:0:0:0:ffff:4179:8c09
65.121.140.10 0:0:0:0:0:ffff:4179:8c0a
65.121.140.11 0:0:0:0:0:ffff:4179:8c0b
65.121.140.12 0:0:0:0:0:ffff:4179:8c0c
65.121.140.13 0:0:0:0:0:ffff:4179:8c0d
65.121.140.14 0:0:0:0:0:ffff:4179:8c0e
65.121.140.15 0:0:0:0:0:ffff:4179:8c0f
65.121.140.16 0:0:0:0:0:ffff:4179:8c10
65.121.140.17 0:0:0:0:0:ffff:4179:8c11
65.121.140.18 0:0:0:0:0:ffff:4179:8c12
65.121.140.19 0:0:0:0:0:ffff:4179:8c13
65.121.140.20 0:0:0:0:0:ffff:4179:8c14
65.121.140.21 0:0:0:0:0:ffff:4179:8c15
65.121.140.22 0:0:0:0:0:ffff:4179:8c16
65.121.140.23 0:0:0:0:0:ffff:4179:8c17
65.121.140.24 0:0:0:0:0:ffff:4179:8c18
65.121.140.25 0:0:0:0:0:ffff:4179:8c19
65.121.140.26 0:0:0:0:0:ffff:4179:8c1a
65.121.140.27 0:0:0:0:0:ffff:4179:8c1b
65.121.140.28 0:0:0:0:0:ffff:4179:8c1c
65.121.140.29 0:0:0:0:0:ffff:4179:8c1d
65.121.140.30 0:0:0:0:0:ffff:4179:8c1e
65.121.140.31 0:0:0:0:0:ffff:4179:8c1f
65.121.140.32 0:0:0:0:0:ffff:4179:8c20
65.121.140.33 0:0:0:0:0:ffff:4179:8c21
65.121.140.34 0:0:0:0:0:ffff:4179:8c22
65.121.140.35 0:0:0:0:0:ffff:4179:8c23
65.121.140.36 0:0:0:0:0:ffff:4179:8c24
65.121.140.37 0:0:0:0:0:ffff:4179:8c25
65.121.140.38 0:0:0:0:0:ffff:4179:8c26
65.121.140.39 0:0:0:0:0:ffff:4179:8c27
65.121.140.40 0:0:0:0:0:ffff:4179:8c28
65.121.140.41 0:0:0:0:0:ffff:4179:8c29
65.121.140.42 0:0:0:0:0:ffff:4179:8c2a
65.121.140.43 0:0:0:0:0:ffff:4179:8c2b
65.121.140.44 0:0:0:0:0:ffff:4179:8c2c
65.121.140.45 0:0:0:0:0:ffff:4179:8c2d
65.121.140.46 0:0:0:0:0:ffff:4179:8c2e
65.121.140.47 0:0:0:0:0:ffff:4179:8c2f
65.121.140.48 0:0:0:0:0:ffff:4179:8c30
65.121.140.49 0:0:0:0:0:ffff:4179:8c31
65.121.140.50 0:0:0:0:0:ffff:4179:8c32
65.121.140.51 0:0:0:0:0:ffff:4179:8c33
65.121.140.52 0:0:0:0:0:ffff:4179:8c34
65.121.140.53 0:0:0:0:0:ffff:4179:8c35
65.121.140.54 0:0:0:0:0:ffff:4179:8c36
65.121.140.55 0:0:0:0:0:ffff:4179:8c37
65.121.140.56 0:0:0:0:0:ffff:4179:8c38
65.121.140.57 0:0:0:0:0:ffff:4179:8c39
65.121.140.58 0:0:0:0:0:ffff:4179:8c3a
65.121.140.59 0:0:0:0:0:ffff:4179:8c3b
65.121.140.60 0:0:0:0:0:ffff:4179:8c3c


65.121.140.61 0:0:0:0:0:ffff:4179:8c3d
65.121.140.62 0:0:0:0:0:ffff:4179:8c3e
65.121.140.63 0:0:0:0:0:ffff:4179:8c3f
65.121.140.64 0:0:0:0:0:ffff:4179:8c40
65.121.140.65 0:0:0:0:0:ffff:4179:8c41
65.121.140.66 0:0:0:0:0:ffff:4179:8c42
65.121.140.67 0:0:0:0:0:ffff:4179:8c43
65.121.140.68 0:0:0:0:0:ffff:4179:8c44
65.121.140.69 0:0:0:0:0:ffff:4179:8c45
65.121.140.70 0:0:0:0:0:ffff:4179:8c46
65.121.140.71 0:0:0:0:0:ffff:4179:8c47
65.121.140.72 0:0:0:0:0:ffff:4179:8c48
65.121.140.73 0:0:0:0:0:ffff:4179:8c49
65.121.140.74 0:0:0:0:0:ffff:4179:8c4a
65.121.140.75 0:0:0:0:0:ffff:4179:8c4b
65.121.140.76 0:0:0:0:0:ffff:4179:8c4c
65.121.140.77 0:0:0:0:0:ffff:4179:8c4d
65.121.140.78 0:0:0:0:0:ffff:4179:8c4e
65.121.140.79 0:0:0:0:0:ffff:4179:8c4f
65.121.140.80 0:0:0:0:0:ffff:4179:8c50
65.121.140.81 0:0:0:0:0:ffff:4179:8c51
65.121.140.82 0:0:0:0:0:ffff:4179:8c52
65.121.140.83 0:0:0:0:0:ffff:4179:8c53
65.121.140.84 0:0:0:0:0:ffff:4179:8c54
65.121.140.85 0:0:0:0:0:ffff:4179:8c55
65.121.140.86 0:0:0:0:0:ffff:4179:8c56
65.121.140.87 0:0:0:0:0:ffff:4179:8c57
65.121.140.88 0:0:0:0:0:ffff:4179:8c58
65.121.140.89 0:0:0:0:0:ffff:4179:8c59
65.121.140.90 0:0:0:0:0:ffff:4179:8c5a
65.121.140.91 0:0:0:0:0:ffff:4179:8c5b
65.121.140.92 0:0:0:0:0:ffff:4179:8c5c
65.121.140.93 0:0:0:0:0:ffff:4179:8c5d
65.121.140.94 0:0:0:0:0:ffff:4179:8c5e
65.121.140.95 0:0:0:0:0:ffff:4179:8c5f
65.121.140.96 0:0:0:0:0:ffff:4179:8c60
65.121.140.97 0:0:0:0:0:ffff:4179:8c61
65.121.140.98 0:0:0:0:0:ffff:4179:8c62
65.121.140.99 0:0:0:0:0:ffff:4179:8c63
65.121.140.100 0:0:0:0:0:ffff:4179:8c64
65.121.140.101 0:0:0:0:0:ffff:4179:8c65
65.121.140.102 0:0:0:0:0:ffff:4179:8c66
65.121.140.103 0:0:0:0:0:ffff:4179:8c67
65.121.140.104 0:0:0:0:0:ffff:4179:8c68
65.121.140.105 0:0:0:0:0:ffff:4179:8c69
65.121.140.106 0:0:0:0:0:ffff:4179:8c6a
65.121.140.107 0:0:0:0:0:ffff:4179:8c6b
65.121.140.108 0:0:0:0:0:ffff:4179:8c6c
65.121.140.109 0:0:0:0:0:ffff:4179:8c6d
65.121.140.110 0:0:0:0:0:ffff:4179:8c6e
65.121.140.111 0:0:0:0:0:ffff:4179:8c6f
65.121.140.112 0:0:0:0:0:ffff:4179:8c70
65.121.140.113 0:0:0:0:0:ffff:4179:8c71
65.121.140.114 0:0:0:0:0:ffff:4179:8c72
65.121.140.115 0:0:0:0:0:ffff:4179:8c73
65.121.140.116 0:0:0:0:0:ffff:4179:8c74
65.121.140.117 0:0:0:0:0:ffff:4179:8c75
65.121.140.118 0:0:0:0:0:ffff:4179:8c76
65.121.140.119 0:0:0:0:0:ffff:4179:8c77
65.121.140.120 0:0:0:0:0:ffff:4179:8c78


65.121.140.121 0:0:0:0:0:ffff:4179:8c79
65.121.140.122 0:0:0:0:0:ffff:4179:8c7a
65.121.140.123 0:0:0:0:0:ffff:4179:8c7b
65.121.140.124 0:0:0:0:0:ffff:4179:8c7c
65.121.140.125 0:0:0:0:0:ffff:4179:8c7d
65.121.140.126 0:0:0:0:0:ffff:4179:8c7e
65.121.140.127 0:0:0:0:0:ffff:4179:8c7f
65.121.140.128 0:0:0:0:0:ffff:4179:8c80
65.121.140.129 0:0:0:0:0:ffff:4179:8c81
65.121.140.130 0:0:0:0:0:ffff:4179:8c82
65.121.140.131 0:0:0:0:0:ffff:4179:8c83
65.121.140.132 0:0:0:0:0:ffff:4179:8c84
65.121.140.133 0:0:0:0:0:ffff:4179:8c85
65.121.140.134 0:0:0:0:0:ffff:4179:8c86
65.121.140.135 0:0:0:0:0:ffff:4179:8c87
65.121.140.136 0:0:0:0:0:ffff:4179:8c88
65.121.140.137 0:0:0:0:0:ffff:4179:8c89
65.121.140.138 0:0:0:0:0:ffff:4179:8c8a
65.121.140.139 0:0:0:0:0:ffff:4179:8c8b
65.121.140.140 0:0:0:0:0:ffff:4179:8c8c
65.121.140.141 0:0:0:0:0:ffff:4179:8c8d
65.121.140.142 0:0:0:0:0:ffff:4179:8c8e
65.121.140.143 0:0:0:0:0:ffff:4179:8c8f
65.121.140.144 0:0:0:0:0:ffff:4179:8c90
65.121.140.145 0:0:0:0:0:ffff:4179:8c91
65.121.140.146 0:0:0:0:0:ffff:4179:8c92
65.121.140.147 0:0:0:0:0:ffff:4179:8c93
65.121.140.148 0:0:0:0:0:ffff:4179:8c94
65.121.140.149 0:0:0:0:0:ffff:4179:8c95
65.121.140.150 0:0:0:0:0:ffff:4179:8c96
65.121.140.151 0:0:0:0:0:ffff:4179:8c97
65.121.140.152 0:0:0:0:0:ffff:4179:8c98
65.121.140.153 0:0:0:0:0:ffff:4179:8c99
65.121.140.154 0:0:0:0:0:ffff:4179:8c9a
65.121.140.155 0:0:0:0:0:ffff:4179:8c9b
65.121.140.156 0:0:0:0:0:ffff:4179:8c9c
65.121.140.157 0:0:0:0:0:ffff:4179:8c9d
65.121.140.158 0:0:0:0:0:ffff:4179:8c9e
65.121.140.159 0:0:0:0:0:ffff:4179:8c9f
65.121.140.160 0:0:0:0:0:ffff:4179:8ca0
65.121.140.161 0:0:0:0:0:ffff:4179:8ca1
65.121.140.162 0:0:0:0:0:ffff:4179:8ca2
65.121.140.163 0:0:0:0:0:ffff:4179:8ca3
65.121.140.164 0:0:0:0:0:ffff:4179:8ca4
65.121.140.165 0:0:0:0:0:ffff:4179:8ca5
65.121.140.166 0:0:0:0:0:ffff:4179:8ca6
65.121.140.167 0:0:0:0:0:ffff:4179:8ca7
65.121.140.168 0:0:0:0:0:ffff:4179:8ca8
65.121.140.169 0:0:0:0:0:ffff:4179:8ca9
65.121.140.170 0:0:0:0:0:ffff:4179:8caa
65.121.140.171 0:0:0:0:0:ffff:4179:8cab
65.121.140.172 0:0:0:0:0:ffff:4179:8cac
65.121.140.173 0:0:0:0:0:ffff:4179:8cad
65.121.140.174 0:0:0:0:0:ffff:4179:8cae
65.121.140.175 0:0:0:0:0:ffff:4179:8caf
65.121.140.176 0:0:0:0:0:ffff:4179:8cb0
65.121.140.177 0:0:0:0:0:ffff:4179:8cb1
65.121.140.178 0:0:0:0:0:ffff:4179:8cb2
65.121.140.179 0:0:0:0:0:ffff:4179:8cb3
65.121.140.180 0:0:0:0:0:ffff:4179:8cb4


65.121.140.181 0:0:0:0:0:ffff:4179:8cb5
65.121.140.182 0:0:0:0:0:ffff:4179:8cb6
65.121.140.183 0:0:0:0:0:ffff:4179:8cb7
65.121.140.184 0:0:0:0:0:ffff:4179:8cb8
65.121.140.185 0:0:0:0:0:ffff:4179:8cb9
65.121.140.186 0:0:0:0:0:ffff:4179:8cba
65.121.140.187 0:0:0:0:0:ffff:4179:8cbb
65.121.140.188 0:0:0:0:0:ffff:4179:8cbc
65.121.140.189 0:0:0:0:0:ffff:4179:8cbd
65.121.140.190 0:0:0:0:0:ffff:4179:8cbe
65.121.140.191 0:0:0:0:0:ffff:4179:8cbf
65.121.140.192 0:0:0:0:0:ffff:4179:8cc0
65.121.140.193 0:0:0:0:0:ffff:4179:8cc1
65.121.140.194 0:0:0:0:0:ffff:4179:8cc2
65.121.140.195 0:0:0:0:0:ffff:4179:8cc3
65.121.140.196 0:0:0:0:0:ffff:4179:8cc4
65.121.140.197 0:0:0:0:0:ffff:4179:8cc5
65.121.140.198 0:0:0:0:0:ffff:4179:8cc6
65.121.140.199 0:0:0:0:0:ffff:4179:8cc7
65.121.140.200 0:0:0:0:0:ffff:4179:8cc8
65.121.140.201 0:0:0:0:0:ffff:4179:8cc9
65.121.140.202 0:0:0:0:0:ffff:4179:8cca
65.121.140.203 0:0:0:0:0:ffff:4179:8ccb
65.121.140.204 0:0:0:0:0:ffff:4179:8ccc
65.121.140.205 0:0:0:0:0:ffff:4179:8ccd
65.121.140.206 0:0:0:0:0:ffff:4179:8cce
65.121.140.207 0:0:0:0:0:ffff:4179:8ccf
65.121.140.208 0:0:0:0:0:ffff:4179:8cd0
65.121.140.209 0:0:0:0:0:ffff:4179:8cd1
65.121.140.210 0:0:0:0:0:ffff:4179:8cd2
65.121.140.211 0:0:0:0:0:ffff:4179:8cd3
65.121.140.212 0:0:0:0:0:ffff:4179:8cd4
65.121.140.213 0:0:0:0:0:ffff:4179:8cd5
65.121.140.214 0:0:0:0:0:ffff:4179:8cd6
65.121.140.215 0:0:0:0:0:ffff:4179:8cd7
65.121.140.216 0:0:0:0:0:ffff:4179:8cd8
65.121.140.217 0:0:0:0:0:ffff:4179:8cd9
65.121.140.218 0:0:0:0:0:ffff:4179:8cda
65.121.140.219 0:0:0:0:0:ffff:4179:8cdb
65.121.140.220 0:0:0:0:0:ffff:4179:8cdc
65.121.140.221 0:0:0:0:0:ffff:4179:8cdd
65.121.140.222 0:0:0:0:0:ffff:4179:8cde
65.121.140.223 0:0:0:0:0:ffff:4179:8cdf
65.121.140.224 0:0:0:0:0:ffff:4179:8ce0
65.121.140.225 0:0:0:0:0:ffff:4179:8ce1
65.121.140.226 0:0:0:0:0:ffff:4179:8ce2
65.121.140.227 0:0:0:0:0:ffff:4179:8ce3
65.121.140.228 0:0:0:0:0:ffff:4179:8ce4
65.121.140.229 0:0:0:0:0:ffff:4179:8ce5
65.121.140.230 0:0:0:0:0:ffff:4179:8ce6
65.121.140.231 0:0:0:0:0:ffff:4179:8ce7
65.121.140.232 0:0:0:0:0:ffff:4179:8ce8
65.121.140.233 0:0:0:0:0:ffff:4179:8ce9
65.121.140.234 0:0:0:0:0:ffff:4179:8cea
65.121.140.235 0:0:0:0:0:ffff:4179:8ceb
65.121.140.236 0:0:0:0:0:ffff:4179:8cec
65.121.140.237 0:0:0:0:0:ffff:4179:8ced
65.121.140.238 0:0:0:0:0:ffff:4179:8cee
65.121.140.239 0:0:0:0:0:ffff:4179:8cef
65.121.140.240 0:0:0:0:0:ffff:4179:8cf0
65.121.140.241 0:0:0:0:0:ffff:4179:8cf1
65.121.140.242 0:0:0:0:0:ffff:4179:8cf2
65.121.140.243 0:0:0:0:0:ffff:4179:8cf3
65.121.140.244 0:0:0:0:0:ffff:4179:8cf4
65.121.140.245 0:0:0:0:0:ffff:4179:8cf5
65.121.140.246 0:0:0:0:0:ffff:4179:8cf6
65.121.140.247 0:0:0:0:0:ffff:4179:8cf7
65.121.140.248 0:0:0:0:0:ffff:4179:8cf8
65.121.140.249 0:0:0:0:0:ffff:4179:8cf9
65.121.140.250 0:0:0:0:0:ffff:4179:8cfa
65.121.140.251 0:0:0:0:0:ffff:4179:8cfb
65.121.140.252 0:0:0:0:0:ffff:4179:8cfc
65.121.140.253 0:0:0:0:0:ffff:4179:8cfd
65.121.140.254 0:0:0:0:0:ffff:4179:8cfe
65.121.140.255 0:0:0:0:0:ffff:4179:8cff


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.