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
144.21.77.1 0:0:0:0:0:ffff:9015:4d01
144.21.77.2 0:0:0:0:0:ffff:9015:4d02
144.21.77.3 0:0:0:0:0:ffff:9015:4d03
144.21.77.4 0:0:0:0:0:ffff:9015:4d04
144.21.77.5 0:0:0:0:0:ffff:9015:4d05
144.21.77.6 0:0:0:0:0:ffff:9015:4d06
144.21.77.7 0:0:0:0:0:ffff:9015:4d07
144.21.77.8 0:0:0:0:0:ffff:9015:4d08
144.21.77.9 0:0:0:0:0:ffff:9015:4d09
144.21.77.10 0:0:0:0:0:ffff:9015:4d0a
144.21.77.11 0:0:0:0:0:ffff:9015:4d0b
144.21.77.12 0:0:0:0:0:ffff:9015:4d0c
144.21.77.13 0:0:0:0:0:ffff:9015:4d0d
144.21.77.14 0:0:0:0:0:ffff:9015:4d0e
144.21.77.15 0:0:0:0:0:ffff:9015:4d0f
144.21.77.16 0:0:0:0:0:ffff:9015:4d10
144.21.77.17 0:0:0:0:0:ffff:9015:4d11
144.21.77.18 0:0:0:0:0:ffff:9015:4d12
144.21.77.19 0:0:0:0:0:ffff:9015:4d13
144.21.77.20 0:0:0:0:0:ffff:9015:4d14
144.21.77.21 0:0:0:0:0:ffff:9015:4d15
144.21.77.22 0:0:0:0:0:ffff:9015:4d16
144.21.77.23 0:0:0:0:0:ffff:9015:4d17
144.21.77.24 0:0:0:0:0:ffff:9015:4d18
144.21.77.25 0:0:0:0:0:ffff:9015:4d19
144.21.77.26 0:0:0:0:0:ffff:9015:4d1a
144.21.77.27 0:0:0:0:0:ffff:9015:4d1b
144.21.77.28 0:0:0:0:0:ffff:9015:4d1c
144.21.77.29 0:0:0:0:0:ffff:9015:4d1d
144.21.77.30 0:0:0:0:0:ffff:9015:4d1e
144.21.77.31 0:0:0:0:0:ffff:9015:4d1f
144.21.77.32 0:0:0:0:0:ffff:9015:4d20
144.21.77.33 0:0:0:0:0:ffff:9015:4d21
144.21.77.34 0:0:0:0:0:ffff:9015:4d22
144.21.77.35 0:0:0:0:0:ffff:9015:4d23
144.21.77.36 0:0:0:0:0:ffff:9015:4d24
144.21.77.37 0:0:0:0:0:ffff:9015:4d25
144.21.77.38 0:0:0:0:0:ffff:9015:4d26
144.21.77.39 0:0:0:0:0:ffff:9015:4d27
144.21.77.40 0:0:0:0:0:ffff:9015:4d28
144.21.77.41 0:0:0:0:0:ffff:9015:4d29
144.21.77.42 0:0:0:0:0:ffff:9015:4d2a
144.21.77.43 0:0:0:0:0:ffff:9015:4d2b
144.21.77.44 0:0:0:0:0:ffff:9015:4d2c
144.21.77.45 0:0:0:0:0:ffff:9015:4d2d
144.21.77.46 0:0:0:0:0:ffff:9015:4d2e
144.21.77.47 0:0:0:0:0:ffff:9015:4d2f
144.21.77.48 0:0:0:0:0:ffff:9015:4d30
144.21.77.49 0:0:0:0:0:ffff:9015:4d31
144.21.77.50 0:0:0:0:0:ffff:9015:4d32
144.21.77.51 0:0:0:0:0:ffff:9015:4d33
144.21.77.52 0:0:0:0:0:ffff:9015:4d34
144.21.77.53 0:0:0:0:0:ffff:9015:4d35
144.21.77.54 0:0:0:0:0:ffff:9015:4d36
144.21.77.55 0:0:0:0:0:ffff:9015:4d37
144.21.77.56 0:0:0:0:0:ffff:9015:4d38
144.21.77.57 0:0:0:0:0:ffff:9015:4d39
144.21.77.58 0:0:0:0:0:ffff:9015:4d3a
144.21.77.59 0:0:0:0:0:ffff:9015:4d3b
144.21.77.60 0:0:0:0:0:ffff:9015:4d3c


144.21.77.61 0:0:0:0:0:ffff:9015:4d3d
144.21.77.62 0:0:0:0:0:ffff:9015:4d3e
144.21.77.63 0:0:0:0:0:ffff:9015:4d3f
144.21.77.64 0:0:0:0:0:ffff:9015:4d40
144.21.77.65 0:0:0:0:0:ffff:9015:4d41
144.21.77.66 0:0:0:0:0:ffff:9015:4d42
144.21.77.67 0:0:0:0:0:ffff:9015:4d43
144.21.77.68 0:0:0:0:0:ffff:9015:4d44
144.21.77.69 0:0:0:0:0:ffff:9015:4d45
144.21.77.70 0:0:0:0:0:ffff:9015:4d46
144.21.77.71 0:0:0:0:0:ffff:9015:4d47
144.21.77.72 0:0:0:0:0:ffff:9015:4d48
144.21.77.73 0:0:0:0:0:ffff:9015:4d49
144.21.77.74 0:0:0:0:0:ffff:9015:4d4a
144.21.77.75 0:0:0:0:0:ffff:9015:4d4b
144.21.77.76 0:0:0:0:0:ffff:9015:4d4c
144.21.77.77 0:0:0:0:0:ffff:9015:4d4d
144.21.77.78 0:0:0:0:0:ffff:9015:4d4e
144.21.77.79 0:0:0:0:0:ffff:9015:4d4f
144.21.77.80 0:0:0:0:0:ffff:9015:4d50
144.21.77.81 0:0:0:0:0:ffff:9015:4d51
144.21.77.82 0:0:0:0:0:ffff:9015:4d52
144.21.77.83 0:0:0:0:0:ffff:9015:4d53
144.21.77.84 0:0:0:0:0:ffff:9015:4d54
144.21.77.85 0:0:0:0:0:ffff:9015:4d55
144.21.77.86 0:0:0:0:0:ffff:9015:4d56
144.21.77.87 0:0:0:0:0:ffff:9015:4d57
144.21.77.88 0:0:0:0:0:ffff:9015:4d58
144.21.77.89 0:0:0:0:0:ffff:9015:4d59
144.21.77.90 0:0:0:0:0:ffff:9015:4d5a
144.21.77.91 0:0:0:0:0:ffff:9015:4d5b
144.21.77.92 0:0:0:0:0:ffff:9015:4d5c
144.21.77.93 0:0:0:0:0:ffff:9015:4d5d
144.21.77.94 0:0:0:0:0:ffff:9015:4d5e
144.21.77.95 0:0:0:0:0:ffff:9015:4d5f
144.21.77.96 0:0:0:0:0:ffff:9015:4d60
144.21.77.97 0:0:0:0:0:ffff:9015:4d61
144.21.77.98 0:0:0:0:0:ffff:9015:4d62
144.21.77.99 0:0:0:0:0:ffff:9015:4d63
144.21.77.100 0:0:0:0:0:ffff:9015:4d64
144.21.77.101 0:0:0:0:0:ffff:9015:4d65
144.21.77.102 0:0:0:0:0:ffff:9015:4d66
144.21.77.103 0:0:0:0:0:ffff:9015:4d67
144.21.77.104 0:0:0:0:0:ffff:9015:4d68
144.21.77.105 0:0:0:0:0:ffff:9015:4d69
144.21.77.106 0:0:0:0:0:ffff:9015:4d6a
144.21.77.107 0:0:0:0:0:ffff:9015:4d6b
144.21.77.108 0:0:0:0:0:ffff:9015:4d6c
144.21.77.109 0:0:0:0:0:ffff:9015:4d6d
144.21.77.110 0:0:0:0:0:ffff:9015:4d6e
144.21.77.111 0:0:0:0:0:ffff:9015:4d6f
144.21.77.112 0:0:0:0:0:ffff:9015:4d70
144.21.77.113 0:0:0:0:0:ffff:9015:4d71
144.21.77.114 0:0:0:0:0:ffff:9015:4d72
144.21.77.115 0:0:0:0:0:ffff:9015:4d73
144.21.77.116 0:0:0:0:0:ffff:9015:4d74
144.21.77.117 0:0:0:0:0:ffff:9015:4d75
144.21.77.118 0:0:0:0:0:ffff:9015:4d76
144.21.77.119 0:0:0:0:0:ffff:9015:4d77
144.21.77.120 0:0:0:0:0:ffff:9015:4d78


144.21.77.121 0:0:0:0:0:ffff:9015:4d79
144.21.77.122 0:0:0:0:0:ffff:9015:4d7a
144.21.77.123 0:0:0:0:0:ffff:9015:4d7b
144.21.77.124 0:0:0:0:0:ffff:9015:4d7c
144.21.77.125 0:0:0:0:0:ffff:9015:4d7d
144.21.77.126 0:0:0:0:0:ffff:9015:4d7e
144.21.77.127 0:0:0:0:0:ffff:9015:4d7f
144.21.77.128 0:0:0:0:0:ffff:9015:4d80
144.21.77.129 0:0:0:0:0:ffff:9015:4d81
144.21.77.130 0:0:0:0:0:ffff:9015:4d82
144.21.77.131 0:0:0:0:0:ffff:9015:4d83
144.21.77.132 0:0:0:0:0:ffff:9015:4d84
144.21.77.133 0:0:0:0:0:ffff:9015:4d85
144.21.77.134 0:0:0:0:0:ffff:9015:4d86
144.21.77.135 0:0:0:0:0:ffff:9015:4d87
144.21.77.136 0:0:0:0:0:ffff:9015:4d88
144.21.77.137 0:0:0:0:0:ffff:9015:4d89
144.21.77.138 0:0:0:0:0:ffff:9015:4d8a
144.21.77.139 0:0:0:0:0:ffff:9015:4d8b
144.21.77.140 0:0:0:0:0:ffff:9015:4d8c
144.21.77.141 0:0:0:0:0:ffff:9015:4d8d
144.21.77.142 0:0:0:0:0:ffff:9015:4d8e
144.21.77.143 0:0:0:0:0:ffff:9015:4d8f
144.21.77.144 0:0:0:0:0:ffff:9015:4d90
144.21.77.145 0:0:0:0:0:ffff:9015:4d91
144.21.77.146 0:0:0:0:0:ffff:9015:4d92
144.21.77.147 0:0:0:0:0:ffff:9015:4d93
144.21.77.148 0:0:0:0:0:ffff:9015:4d94
144.21.77.149 0:0:0:0:0:ffff:9015:4d95
144.21.77.150 0:0:0:0:0:ffff:9015:4d96
144.21.77.151 0:0:0:0:0:ffff:9015:4d97
144.21.77.152 0:0:0:0:0:ffff:9015:4d98
144.21.77.153 0:0:0:0:0:ffff:9015:4d99
144.21.77.154 0:0:0:0:0:ffff:9015:4d9a
144.21.77.155 0:0:0:0:0:ffff:9015:4d9b
144.21.77.156 0:0:0:0:0:ffff:9015:4d9c
144.21.77.157 0:0:0:0:0:ffff:9015:4d9d
144.21.77.158 0:0:0:0:0:ffff:9015:4d9e
144.21.77.159 0:0:0:0:0:ffff:9015:4d9f
144.21.77.160 0:0:0:0:0:ffff:9015:4da0
144.21.77.161 0:0:0:0:0:ffff:9015:4da1
144.21.77.162 0:0:0:0:0:ffff:9015:4da2
144.21.77.163 0:0:0:0:0:ffff:9015:4da3
144.21.77.164 0:0:0:0:0:ffff:9015:4da4
144.21.77.165 0:0:0:0:0:ffff:9015:4da5
144.21.77.166 0:0:0:0:0:ffff:9015:4da6
144.21.77.167 0:0:0:0:0:ffff:9015:4da7
144.21.77.168 0:0:0:0:0:ffff:9015:4da8
144.21.77.169 0:0:0:0:0:ffff:9015:4da9
144.21.77.170 0:0:0:0:0:ffff:9015:4daa
144.21.77.171 0:0:0:0:0:ffff:9015:4dab
144.21.77.172 0:0:0:0:0:ffff:9015:4dac
144.21.77.173 0:0:0:0:0:ffff:9015:4dad
144.21.77.174 0:0:0:0:0:ffff:9015:4dae
144.21.77.175 0:0:0:0:0:ffff:9015:4daf
144.21.77.176 0:0:0:0:0:ffff:9015:4db0
144.21.77.177 0:0:0:0:0:ffff:9015:4db1
144.21.77.178 0:0:0:0:0:ffff:9015:4db2
144.21.77.179 0:0:0:0:0:ffff:9015:4db3
144.21.77.180 0:0:0:0:0:ffff:9015:4db4


144.21.77.181 0:0:0:0:0:ffff:9015:4db5
144.21.77.182 0:0:0:0:0:ffff:9015:4db6
144.21.77.183 0:0:0:0:0:ffff:9015:4db7
144.21.77.184 0:0:0:0:0:ffff:9015:4db8
144.21.77.185 0:0:0:0:0:ffff:9015:4db9
144.21.77.186 0:0:0:0:0:ffff:9015:4dba
144.21.77.187 0:0:0:0:0:ffff:9015:4dbb
144.21.77.188 0:0:0:0:0:ffff:9015:4dbc
144.21.77.189 0:0:0:0:0:ffff:9015:4dbd
144.21.77.190 0:0:0:0:0:ffff:9015:4dbe
144.21.77.191 0:0:0:0:0:ffff:9015:4dbf
144.21.77.192 0:0:0:0:0:ffff:9015:4dc0
144.21.77.193 0:0:0:0:0:ffff:9015:4dc1
144.21.77.194 0:0:0:0:0:ffff:9015:4dc2
144.21.77.195 0:0:0:0:0:ffff:9015:4dc3
144.21.77.196 0:0:0:0:0:ffff:9015:4dc4
144.21.77.197 0:0:0:0:0:ffff:9015:4dc5
144.21.77.198 0:0:0:0:0:ffff:9015:4dc6
144.21.77.199 0:0:0:0:0:ffff:9015:4dc7
144.21.77.200 0:0:0:0:0:ffff:9015:4dc8
144.21.77.201 0:0:0:0:0:ffff:9015:4dc9
144.21.77.202 0:0:0:0:0:ffff:9015:4dca
144.21.77.203 0:0:0:0:0:ffff:9015:4dcb
144.21.77.204 0:0:0:0:0:ffff:9015:4dcc
144.21.77.205 0:0:0:0:0:ffff:9015:4dcd
144.21.77.206 0:0:0:0:0:ffff:9015:4dce
144.21.77.207 0:0:0:0:0:ffff:9015:4dcf
144.21.77.208 0:0:0:0:0:ffff:9015:4dd0
144.21.77.209 0:0:0:0:0:ffff:9015:4dd1
144.21.77.210 0:0:0:0:0:ffff:9015:4dd2
144.21.77.211 0:0:0:0:0:ffff:9015:4dd3
144.21.77.212 0:0:0:0:0:ffff:9015:4dd4
144.21.77.213 0:0:0:0:0:ffff:9015:4dd5
144.21.77.214 0:0:0:0:0:ffff:9015:4dd6
144.21.77.215 0:0:0:0:0:ffff:9015:4dd7
144.21.77.216 0:0:0:0:0:ffff:9015:4dd8
144.21.77.217 0:0:0:0:0:ffff:9015:4dd9
144.21.77.218 0:0:0:0:0:ffff:9015:4dda
144.21.77.219 0:0:0:0:0:ffff:9015:4ddb
144.21.77.220 0:0:0:0:0:ffff:9015:4ddc
144.21.77.221 0:0:0:0:0:ffff:9015:4ddd
144.21.77.222 0:0:0:0:0:ffff:9015:4dde
144.21.77.223 0:0:0:0:0:ffff:9015:4ddf
144.21.77.224 0:0:0:0:0:ffff:9015:4de0
144.21.77.225 0:0:0:0:0:ffff:9015:4de1
144.21.77.226 0:0:0:0:0:ffff:9015:4de2
144.21.77.227 0:0:0:0:0:ffff:9015:4de3
144.21.77.228 0:0:0:0:0:ffff:9015:4de4
144.21.77.229 0:0:0:0:0:ffff:9015:4de5
144.21.77.230 0:0:0:0:0:ffff:9015:4de6
144.21.77.231 0:0:0:0:0:ffff:9015:4de7
144.21.77.232 0:0:0:0:0:ffff:9015:4de8
144.21.77.233 0:0:0:0:0:ffff:9015:4de9
144.21.77.234 0:0:0:0:0:ffff:9015:4dea
144.21.77.235 0:0:0:0:0:ffff:9015:4deb
144.21.77.236 0:0:0:0:0:ffff:9015:4dec
144.21.77.237 0:0:0:0:0:ffff:9015:4ded
144.21.77.238 0:0:0:0:0:ffff:9015:4dee
144.21.77.239 0:0:0:0:0:ffff:9015:4def
144.21.77.240 0:0:0:0:0:ffff:9015:4df0
144.21.77.241 0:0:0:0:0:ffff:9015:4df1
144.21.77.242 0:0:0:0:0:ffff:9015:4df2
144.21.77.243 0:0:0:0:0:ffff:9015:4df3
144.21.77.244 0:0:0:0:0:ffff:9015:4df4
144.21.77.245 0:0:0:0:0:ffff:9015:4df5
144.21.77.246 0:0:0:0:0:ffff:9015:4df6
144.21.77.247 0:0:0:0:0:ffff:9015:4df7
144.21.77.248 0:0:0:0:0:ffff:9015:4df8
144.21.77.249 0:0:0:0:0:ffff:9015:4df9
144.21.77.250 0:0:0:0:0:ffff:9015:4dfa
144.21.77.251 0:0:0:0:0:ffff:9015:4dfb
144.21.77.252 0:0:0:0:0:ffff:9015:4dfc
144.21.77.253 0:0:0:0:0:ffff:9015:4dfd
144.21.77.254 0:0:0:0:0:ffff:9015:4dfe
144.21.77.255 0:0:0:0:0:ffff:9015:4dff


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.