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
65.121.236.1 0:0:0:0:0:ffff:4179:ec01
65.121.236.2 0:0:0:0:0:ffff:4179:ec02
65.121.236.3 0:0:0:0:0:ffff:4179:ec03
65.121.236.4 0:0:0:0:0:ffff:4179:ec04
65.121.236.5 0:0:0:0:0:ffff:4179:ec05
65.121.236.6 0:0:0:0:0:ffff:4179:ec06
65.121.236.7 0:0:0:0:0:ffff:4179:ec07
65.121.236.8 0:0:0:0:0:ffff:4179:ec08
65.121.236.9 0:0:0:0:0:ffff:4179:ec09
65.121.236.10 0:0:0:0:0:ffff:4179:ec0a
65.121.236.11 0:0:0:0:0:ffff:4179:ec0b
65.121.236.12 0:0:0:0:0:ffff:4179:ec0c
65.121.236.13 0:0:0:0:0:ffff:4179:ec0d
65.121.236.14 0:0:0:0:0:ffff:4179:ec0e
65.121.236.15 0:0:0:0:0:ffff:4179:ec0f
65.121.236.16 0:0:0:0:0:ffff:4179:ec10
65.121.236.17 0:0:0:0:0:ffff:4179:ec11
65.121.236.18 0:0:0:0:0:ffff:4179:ec12
65.121.236.19 0:0:0:0:0:ffff:4179:ec13
65.121.236.20 0:0:0:0:0:ffff:4179:ec14
65.121.236.21 0:0:0:0:0:ffff:4179:ec15
65.121.236.22 0:0:0:0:0:ffff:4179:ec16
65.121.236.23 0:0:0:0:0:ffff:4179:ec17
65.121.236.24 0:0:0:0:0:ffff:4179:ec18
65.121.236.25 0:0:0:0:0:ffff:4179:ec19
65.121.236.26 0:0:0:0:0:ffff:4179:ec1a
65.121.236.27 0:0:0:0:0:ffff:4179:ec1b
65.121.236.28 0:0:0:0:0:ffff:4179:ec1c
65.121.236.29 0:0:0:0:0:ffff:4179:ec1d
65.121.236.30 0:0:0:0:0:ffff:4179:ec1e
65.121.236.31 0:0:0:0:0:ffff:4179:ec1f
65.121.236.32 0:0:0:0:0:ffff:4179:ec20
65.121.236.33 0:0:0:0:0:ffff:4179:ec21
65.121.236.34 0:0:0:0:0:ffff:4179:ec22
65.121.236.35 0:0:0:0:0:ffff:4179:ec23
65.121.236.36 0:0:0:0:0:ffff:4179:ec24
65.121.236.37 0:0:0:0:0:ffff:4179:ec25
65.121.236.38 0:0:0:0:0:ffff:4179:ec26
65.121.236.39 0:0:0:0:0:ffff:4179:ec27
65.121.236.40 0:0:0:0:0:ffff:4179:ec28
65.121.236.41 0:0:0:0:0:ffff:4179:ec29
65.121.236.42 0:0:0:0:0:ffff:4179:ec2a
65.121.236.43 0:0:0:0:0:ffff:4179:ec2b
65.121.236.44 0:0:0:0:0:ffff:4179:ec2c
65.121.236.45 0:0:0:0:0:ffff:4179:ec2d
65.121.236.46 0:0:0:0:0:ffff:4179:ec2e
65.121.236.47 0:0:0:0:0:ffff:4179:ec2f
65.121.236.48 0:0:0:0:0:ffff:4179:ec30
65.121.236.49 0:0:0:0:0:ffff:4179:ec31
65.121.236.50 0:0:0:0:0:ffff:4179:ec32
65.121.236.51 0:0:0:0:0:ffff:4179:ec33
65.121.236.52 0:0:0:0:0:ffff:4179:ec34
65.121.236.53 0:0:0:0:0:ffff:4179:ec35
65.121.236.54 0:0:0:0:0:ffff:4179:ec36
65.121.236.55 0:0:0:0:0:ffff:4179:ec37
65.121.236.56 0:0:0:0:0:ffff:4179:ec38
65.121.236.57 0:0:0:0:0:ffff:4179:ec39
65.121.236.58 0:0:0:0:0:ffff:4179:ec3a
65.121.236.59 0:0:0:0:0:ffff:4179:ec3b
65.121.236.60 0:0:0:0:0:ffff:4179:ec3c


65.121.236.61 0:0:0:0:0:ffff:4179:ec3d
65.121.236.62 0:0:0:0:0:ffff:4179:ec3e
65.121.236.63 0:0:0:0:0:ffff:4179:ec3f
65.121.236.64 0:0:0:0:0:ffff:4179:ec40
65.121.236.65 0:0:0:0:0:ffff:4179:ec41
65.121.236.66 0:0:0:0:0:ffff:4179:ec42
65.121.236.67 0:0:0:0:0:ffff:4179:ec43
65.121.236.68 0:0:0:0:0:ffff:4179:ec44
65.121.236.69 0:0:0:0:0:ffff:4179:ec45
65.121.236.70 0:0:0:0:0:ffff:4179:ec46
65.121.236.71 0:0:0:0:0:ffff:4179:ec47
65.121.236.72 0:0:0:0:0:ffff:4179:ec48
65.121.236.73 0:0:0:0:0:ffff:4179:ec49
65.121.236.74 0:0:0:0:0:ffff:4179:ec4a
65.121.236.75 0:0:0:0:0:ffff:4179:ec4b
65.121.236.76 0:0:0:0:0:ffff:4179:ec4c
65.121.236.77 0:0:0:0:0:ffff:4179:ec4d
65.121.236.78 0:0:0:0:0:ffff:4179:ec4e
65.121.236.79 0:0:0:0:0:ffff:4179:ec4f
65.121.236.80 0:0:0:0:0:ffff:4179:ec50
65.121.236.81 0:0:0:0:0:ffff:4179:ec51
65.121.236.82 0:0:0:0:0:ffff:4179:ec52
65.121.236.83 0:0:0:0:0:ffff:4179:ec53
65.121.236.84 0:0:0:0:0:ffff:4179:ec54
65.121.236.85 0:0:0:0:0:ffff:4179:ec55
65.121.236.86 0:0:0:0:0:ffff:4179:ec56
65.121.236.87 0:0:0:0:0:ffff:4179:ec57
65.121.236.88 0:0:0:0:0:ffff:4179:ec58
65.121.236.89 0:0:0:0:0:ffff:4179:ec59
65.121.236.90 0:0:0:0:0:ffff:4179:ec5a
65.121.236.91 0:0:0:0:0:ffff:4179:ec5b
65.121.236.92 0:0:0:0:0:ffff:4179:ec5c
65.121.236.93 0:0:0:0:0:ffff:4179:ec5d
65.121.236.94 0:0:0:0:0:ffff:4179:ec5e
65.121.236.95 0:0:0:0:0:ffff:4179:ec5f
65.121.236.96 0:0:0:0:0:ffff:4179:ec60
65.121.236.97 0:0:0:0:0:ffff:4179:ec61
65.121.236.98 0:0:0:0:0:ffff:4179:ec62
65.121.236.99 0:0:0:0:0:ffff:4179:ec63
65.121.236.100 0:0:0:0:0:ffff:4179:ec64
65.121.236.101 0:0:0:0:0:ffff:4179:ec65
65.121.236.102 0:0:0:0:0:ffff:4179:ec66
65.121.236.103 0:0:0:0:0:ffff:4179:ec67
65.121.236.104 0:0:0:0:0:ffff:4179:ec68
65.121.236.105 0:0:0:0:0:ffff:4179:ec69
65.121.236.106 0:0:0:0:0:ffff:4179:ec6a
65.121.236.107 0:0:0:0:0:ffff:4179:ec6b
65.121.236.108 0:0:0:0:0:ffff:4179:ec6c
65.121.236.109 0:0:0:0:0:ffff:4179:ec6d
65.121.236.110 0:0:0:0:0:ffff:4179:ec6e
65.121.236.111 0:0:0:0:0:ffff:4179:ec6f
65.121.236.112 0:0:0:0:0:ffff:4179:ec70
65.121.236.113 0:0:0:0:0:ffff:4179:ec71
65.121.236.114 0:0:0:0:0:ffff:4179:ec72
65.121.236.115 0:0:0:0:0:ffff:4179:ec73
65.121.236.116 0:0:0:0:0:ffff:4179:ec74
65.121.236.117 0:0:0:0:0:ffff:4179:ec75
65.121.236.118 0:0:0:0:0:ffff:4179:ec76
65.121.236.119 0:0:0:0:0:ffff:4179:ec77
65.121.236.120 0:0:0:0:0:ffff:4179:ec78


65.121.236.121 0:0:0:0:0:ffff:4179:ec79
65.121.236.122 0:0:0:0:0:ffff:4179:ec7a
65.121.236.123 0:0:0:0:0:ffff:4179:ec7b
65.121.236.124 0:0:0:0:0:ffff:4179:ec7c
65.121.236.125 0:0:0:0:0:ffff:4179:ec7d
65.121.236.126 0:0:0:0:0:ffff:4179:ec7e
65.121.236.127 0:0:0:0:0:ffff:4179:ec7f
65.121.236.128 0:0:0:0:0:ffff:4179:ec80
65.121.236.129 0:0:0:0:0:ffff:4179:ec81
65.121.236.130 0:0:0:0:0:ffff:4179:ec82
65.121.236.131 0:0:0:0:0:ffff:4179:ec83
65.121.236.132 0:0:0:0:0:ffff:4179:ec84
65.121.236.133 0:0:0:0:0:ffff:4179:ec85
65.121.236.134 0:0:0:0:0:ffff:4179:ec86
65.121.236.135 0:0:0:0:0:ffff:4179:ec87
65.121.236.136 0:0:0:0:0:ffff:4179:ec88
65.121.236.137 0:0:0:0:0:ffff:4179:ec89
65.121.236.138 0:0:0:0:0:ffff:4179:ec8a
65.121.236.139 0:0:0:0:0:ffff:4179:ec8b
65.121.236.140 0:0:0:0:0:ffff:4179:ec8c
65.121.236.141 0:0:0:0:0:ffff:4179:ec8d
65.121.236.142 0:0:0:0:0:ffff:4179:ec8e
65.121.236.143 0:0:0:0:0:ffff:4179:ec8f
65.121.236.144 0:0:0:0:0:ffff:4179:ec90
65.121.236.145 0:0:0:0:0:ffff:4179:ec91
65.121.236.146 0:0:0:0:0:ffff:4179:ec92
65.121.236.147 0:0:0:0:0:ffff:4179:ec93
65.121.236.148 0:0:0:0:0:ffff:4179:ec94
65.121.236.149 0:0:0:0:0:ffff:4179:ec95
65.121.236.150 0:0:0:0:0:ffff:4179:ec96
65.121.236.151 0:0:0:0:0:ffff:4179:ec97
65.121.236.152 0:0:0:0:0:ffff:4179:ec98
65.121.236.153 0:0:0:0:0:ffff:4179:ec99
65.121.236.154 0:0:0:0:0:ffff:4179:ec9a
65.121.236.155 0:0:0:0:0:ffff:4179:ec9b
65.121.236.156 0:0:0:0:0:ffff:4179:ec9c
65.121.236.157 0:0:0:0:0:ffff:4179:ec9d
65.121.236.158 0:0:0:0:0:ffff:4179:ec9e
65.121.236.159 0:0:0:0:0:ffff:4179:ec9f
65.121.236.160 0:0:0:0:0:ffff:4179:eca0
65.121.236.161 0:0:0:0:0:ffff:4179:eca1
65.121.236.162 0:0:0:0:0:ffff:4179:eca2
65.121.236.163 0:0:0:0:0:ffff:4179:eca3
65.121.236.164 0:0:0:0:0:ffff:4179:eca4
65.121.236.165 0:0:0:0:0:ffff:4179:eca5
65.121.236.166 0:0:0:0:0:ffff:4179:eca6
65.121.236.167 0:0:0:0:0:ffff:4179:eca7
65.121.236.168 0:0:0:0:0:ffff:4179:eca8
65.121.236.169 0:0:0:0:0:ffff:4179:eca9
65.121.236.170 0:0:0:0:0:ffff:4179:ecaa
65.121.236.171 0:0:0:0:0:ffff:4179:ecab
65.121.236.172 0:0:0:0:0:ffff:4179:ecac
65.121.236.173 0:0:0:0:0:ffff:4179:ecad
65.121.236.174 0:0:0:0:0:ffff:4179:ecae
65.121.236.175 0:0:0:0:0:ffff:4179:ecaf
65.121.236.176 0:0:0:0:0:ffff:4179:ecb0
65.121.236.177 0:0:0:0:0:ffff:4179:ecb1
65.121.236.178 0:0:0:0:0:ffff:4179:ecb2
65.121.236.179 0:0:0:0:0:ffff:4179:ecb3
65.121.236.180 0:0:0:0:0:ffff:4179:ecb4


65.121.236.181 0:0:0:0:0:ffff:4179:ecb5
65.121.236.182 0:0:0:0:0:ffff:4179:ecb6
65.121.236.183 0:0:0:0:0:ffff:4179:ecb7
65.121.236.184 0:0:0:0:0:ffff:4179:ecb8
65.121.236.185 0:0:0:0:0:ffff:4179:ecb9
65.121.236.186 0:0:0:0:0:ffff:4179:ecba
65.121.236.187 0:0:0:0:0:ffff:4179:ecbb
65.121.236.188 0:0:0:0:0:ffff:4179:ecbc
65.121.236.189 0:0:0:0:0:ffff:4179:ecbd
65.121.236.190 0:0:0:0:0:ffff:4179:ecbe
65.121.236.191 0:0:0:0:0:ffff:4179:ecbf
65.121.236.192 0:0:0:0:0:ffff:4179:ecc0
65.121.236.193 0:0:0:0:0:ffff:4179:ecc1
65.121.236.194 0:0:0:0:0:ffff:4179:ecc2
65.121.236.195 0:0:0:0:0:ffff:4179:ecc3
65.121.236.196 0:0:0:0:0:ffff:4179:ecc4
65.121.236.197 0:0:0:0:0:ffff:4179:ecc5
65.121.236.198 0:0:0:0:0:ffff:4179:ecc6
65.121.236.199 0:0:0:0:0:ffff:4179:ecc7
65.121.236.200 0:0:0:0:0:ffff:4179:ecc8
65.121.236.201 0:0:0:0:0:ffff:4179:ecc9
65.121.236.202 0:0:0:0:0:ffff:4179:ecca
65.121.236.203 0:0:0:0:0:ffff:4179:eccb
65.121.236.204 0:0:0:0:0:ffff:4179:eccc
65.121.236.205 0:0:0:0:0:ffff:4179:eccd
65.121.236.206 0:0:0:0:0:ffff:4179:ecce
65.121.236.207 0:0:0:0:0:ffff:4179:eccf
65.121.236.208 0:0:0:0:0:ffff:4179:ecd0
65.121.236.209 0:0:0:0:0:ffff:4179:ecd1
65.121.236.210 0:0:0:0:0:ffff:4179:ecd2
65.121.236.211 0:0:0:0:0:ffff:4179:ecd3
65.121.236.212 0:0:0:0:0:ffff:4179:ecd4
65.121.236.213 0:0:0:0:0:ffff:4179:ecd5
65.121.236.214 0:0:0:0:0:ffff:4179:ecd6
65.121.236.215 0:0:0:0:0:ffff:4179:ecd7
65.121.236.216 0:0:0:0:0:ffff:4179:ecd8
65.121.236.217 0:0:0:0:0:ffff:4179:ecd9
65.121.236.218 0:0:0:0:0:ffff:4179:ecda
65.121.236.219 0:0:0:0:0:ffff:4179:ecdb
65.121.236.220 0:0:0:0:0:ffff:4179:ecdc
65.121.236.221 0:0:0:0:0:ffff:4179:ecdd
65.121.236.222 0:0:0:0:0:ffff:4179:ecde
65.121.236.223 0:0:0:0:0:ffff:4179:ecdf
65.121.236.224 0:0:0:0:0:ffff:4179:ece0
65.121.236.225 0:0:0:0:0:ffff:4179:ece1
65.121.236.226 0:0:0:0:0:ffff:4179:ece2
65.121.236.227 0:0:0:0:0:ffff:4179:ece3
65.121.236.228 0:0:0:0:0:ffff:4179:ece4
65.121.236.229 0:0:0:0:0:ffff:4179:ece5
65.121.236.230 0:0:0:0:0:ffff:4179:ece6
65.121.236.231 0:0:0:0:0:ffff:4179:ece7
65.121.236.232 0:0:0:0:0:ffff:4179:ece8
65.121.236.233 0:0:0:0:0:ffff:4179:ece9
65.121.236.234 0:0:0:0:0:ffff:4179:ecea
65.121.236.235 0:0:0:0:0:ffff:4179:eceb
65.121.236.236 0:0:0:0:0:ffff:4179:ecec
65.121.236.237 0:0:0:0:0:ffff:4179:eced
65.121.236.238 0:0:0:0:0:ffff:4179:ecee
65.121.236.239 0:0:0:0:0:ffff:4179:ecef
65.121.236.240 0:0:0:0:0:ffff:4179:ecf0
65.121.236.241 0:0:0:0:0:ffff:4179:ecf1
65.121.236.242 0:0:0:0:0:ffff:4179:ecf2
65.121.236.243 0:0:0:0:0:ffff:4179:ecf3
65.121.236.244 0:0:0:0:0:ffff:4179:ecf4
65.121.236.245 0:0:0:0:0:ffff:4179:ecf5
65.121.236.246 0:0:0:0:0:ffff:4179:ecf6
65.121.236.247 0:0:0:0:0:ffff:4179:ecf7
65.121.236.248 0:0:0:0:0:ffff:4179:ecf8
65.121.236.249 0:0:0:0:0:ffff:4179:ecf9
65.121.236.250 0:0:0:0:0:ffff:4179:ecfa
65.121.236.251 0:0:0:0:0:ffff:4179:ecfb
65.121.236.252 0:0:0:0:0:ffff:4179:ecfc
65.121.236.253 0:0:0:0:0:ffff:4179:ecfd
65.121.236.254 0:0:0:0:0:ffff:4179:ecfe
65.121.236.255 0:0:0:0:0:ffff:4179:ecff


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.