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
144.21.254.1 0:0:0:0:0:ffff:9015:fe01
144.21.254.2 0:0:0:0:0:ffff:9015:fe02
144.21.254.3 0:0:0:0:0:ffff:9015:fe03
144.21.254.4 0:0:0:0:0:ffff:9015:fe04
144.21.254.5 0:0:0:0:0:ffff:9015:fe05
144.21.254.6 0:0:0:0:0:ffff:9015:fe06
144.21.254.7 0:0:0:0:0:ffff:9015:fe07
144.21.254.8 0:0:0:0:0:ffff:9015:fe08
144.21.254.9 0:0:0:0:0:ffff:9015:fe09
144.21.254.10 0:0:0:0:0:ffff:9015:fe0a
144.21.254.11 0:0:0:0:0:ffff:9015:fe0b
144.21.254.12 0:0:0:0:0:ffff:9015:fe0c
144.21.254.13 0:0:0:0:0:ffff:9015:fe0d
144.21.254.14 0:0:0:0:0:ffff:9015:fe0e
144.21.254.15 0:0:0:0:0:ffff:9015:fe0f
144.21.254.16 0:0:0:0:0:ffff:9015:fe10
144.21.254.17 0:0:0:0:0:ffff:9015:fe11
144.21.254.18 0:0:0:0:0:ffff:9015:fe12
144.21.254.19 0:0:0:0:0:ffff:9015:fe13
144.21.254.20 0:0:0:0:0:ffff:9015:fe14
144.21.254.21 0:0:0:0:0:ffff:9015:fe15
144.21.254.22 0:0:0:0:0:ffff:9015:fe16
144.21.254.23 0:0:0:0:0:ffff:9015:fe17
144.21.254.24 0:0:0:0:0:ffff:9015:fe18
144.21.254.25 0:0:0:0:0:ffff:9015:fe19
144.21.254.26 0:0:0:0:0:ffff:9015:fe1a
144.21.254.27 0:0:0:0:0:ffff:9015:fe1b
144.21.254.28 0:0:0:0:0:ffff:9015:fe1c
144.21.254.29 0:0:0:0:0:ffff:9015:fe1d
144.21.254.30 0:0:0:0:0:ffff:9015:fe1e
144.21.254.31 0:0:0:0:0:ffff:9015:fe1f
144.21.254.32 0:0:0:0:0:ffff:9015:fe20
144.21.254.33 0:0:0:0:0:ffff:9015:fe21
144.21.254.34 0:0:0:0:0:ffff:9015:fe22
144.21.254.35 0:0:0:0:0:ffff:9015:fe23
144.21.254.36 0:0:0:0:0:ffff:9015:fe24
144.21.254.37 0:0:0:0:0:ffff:9015:fe25
144.21.254.38 0:0:0:0:0:ffff:9015:fe26
144.21.254.39 0:0:0:0:0:ffff:9015:fe27
144.21.254.40 0:0:0:0:0:ffff:9015:fe28
144.21.254.41 0:0:0:0:0:ffff:9015:fe29
144.21.254.42 0:0:0:0:0:ffff:9015:fe2a
144.21.254.43 0:0:0:0:0:ffff:9015:fe2b
144.21.254.44 0:0:0:0:0:ffff:9015:fe2c
144.21.254.45 0:0:0:0:0:ffff:9015:fe2d
144.21.254.46 0:0:0:0:0:ffff:9015:fe2e
144.21.254.47 0:0:0:0:0:ffff:9015:fe2f
144.21.254.48 0:0:0:0:0:ffff:9015:fe30
144.21.254.49 0:0:0:0:0:ffff:9015:fe31
144.21.254.50 0:0:0:0:0:ffff:9015:fe32
144.21.254.51 0:0:0:0:0:ffff:9015:fe33
144.21.254.52 0:0:0:0:0:ffff:9015:fe34
144.21.254.53 0:0:0:0:0:ffff:9015:fe35
144.21.254.54 0:0:0:0:0:ffff:9015:fe36
144.21.254.55 0:0:0:0:0:ffff:9015:fe37
144.21.254.56 0:0:0:0:0:ffff:9015:fe38
144.21.254.57 0:0:0:0:0:ffff:9015:fe39
144.21.254.58 0:0:0:0:0:ffff:9015:fe3a
144.21.254.59 0:0:0:0:0:ffff:9015:fe3b
144.21.254.60 0:0:0:0:0:ffff:9015:fe3c


144.21.254.61 0:0:0:0:0:ffff:9015:fe3d
144.21.254.62 0:0:0:0:0:ffff:9015:fe3e
144.21.254.63 0:0:0:0:0:ffff:9015:fe3f
144.21.254.64 0:0:0:0:0:ffff:9015:fe40
144.21.254.65 0:0:0:0:0:ffff:9015:fe41
144.21.254.66 0:0:0:0:0:ffff:9015:fe42
144.21.254.67 0:0:0:0:0:ffff:9015:fe43
144.21.254.68 0:0:0:0:0:ffff:9015:fe44
144.21.254.69 0:0:0:0:0:ffff:9015:fe45
144.21.254.70 0:0:0:0:0:ffff:9015:fe46
144.21.254.71 0:0:0:0:0:ffff:9015:fe47
144.21.254.72 0:0:0:0:0:ffff:9015:fe48
144.21.254.73 0:0:0:0:0:ffff:9015:fe49
144.21.254.74 0:0:0:0:0:ffff:9015:fe4a
144.21.254.75 0:0:0:0:0:ffff:9015:fe4b
144.21.254.76 0:0:0:0:0:ffff:9015:fe4c
144.21.254.77 0:0:0:0:0:ffff:9015:fe4d
144.21.254.78 0:0:0:0:0:ffff:9015:fe4e
144.21.254.79 0:0:0:0:0:ffff:9015:fe4f
144.21.254.80 0:0:0:0:0:ffff:9015:fe50
144.21.254.81 0:0:0:0:0:ffff:9015:fe51
144.21.254.82 0:0:0:0:0:ffff:9015:fe52
144.21.254.83 0:0:0:0:0:ffff:9015:fe53
144.21.254.84 0:0:0:0:0:ffff:9015:fe54
144.21.254.85 0:0:0:0:0:ffff:9015:fe55
144.21.254.86 0:0:0:0:0:ffff:9015:fe56
144.21.254.87 0:0:0:0:0:ffff:9015:fe57
144.21.254.88 0:0:0:0:0:ffff:9015:fe58
144.21.254.89 0:0:0:0:0:ffff:9015:fe59
144.21.254.90 0:0:0:0:0:ffff:9015:fe5a
144.21.254.91 0:0:0:0:0:ffff:9015:fe5b
144.21.254.92 0:0:0:0:0:ffff:9015:fe5c
144.21.254.93 0:0:0:0:0:ffff:9015:fe5d
144.21.254.94 0:0:0:0:0:ffff:9015:fe5e
144.21.254.95 0:0:0:0:0:ffff:9015:fe5f
144.21.254.96 0:0:0:0:0:ffff:9015:fe60
144.21.254.97 0:0:0:0:0:ffff:9015:fe61
144.21.254.98 0:0:0:0:0:ffff:9015:fe62
144.21.254.99 0:0:0:0:0:ffff:9015:fe63
144.21.254.100 0:0:0:0:0:ffff:9015:fe64
144.21.254.101 0:0:0:0:0:ffff:9015:fe65
144.21.254.102 0:0:0:0:0:ffff:9015:fe66
144.21.254.103 0:0:0:0:0:ffff:9015:fe67
144.21.254.104 0:0:0:0:0:ffff:9015:fe68
144.21.254.105 0:0:0:0:0:ffff:9015:fe69
144.21.254.106 0:0:0:0:0:ffff:9015:fe6a
144.21.254.107 0:0:0:0:0:ffff:9015:fe6b
144.21.254.108 0:0:0:0:0:ffff:9015:fe6c
144.21.254.109 0:0:0:0:0:ffff:9015:fe6d
144.21.254.110 0:0:0:0:0:ffff:9015:fe6e
144.21.254.111 0:0:0:0:0:ffff:9015:fe6f
144.21.254.112 0:0:0:0:0:ffff:9015:fe70
144.21.254.113 0:0:0:0:0:ffff:9015:fe71
144.21.254.114 0:0:0:0:0:ffff:9015:fe72
144.21.254.115 0:0:0:0:0:ffff:9015:fe73
144.21.254.116 0:0:0:0:0:ffff:9015:fe74
144.21.254.117 0:0:0:0:0:ffff:9015:fe75
144.21.254.118 0:0:0:0:0:ffff:9015:fe76
144.21.254.119 0:0:0:0:0:ffff:9015:fe77
144.21.254.120 0:0:0:0:0:ffff:9015:fe78


144.21.254.121 0:0:0:0:0:ffff:9015:fe79
144.21.254.122 0:0:0:0:0:ffff:9015:fe7a
144.21.254.123 0:0:0:0:0:ffff:9015:fe7b
144.21.254.124 0:0:0:0:0:ffff:9015:fe7c
144.21.254.125 0:0:0:0:0:ffff:9015:fe7d
144.21.254.126 0:0:0:0:0:ffff:9015:fe7e
144.21.254.127 0:0:0:0:0:ffff:9015:fe7f
144.21.254.128 0:0:0:0:0:ffff:9015:fe80
144.21.254.129 0:0:0:0:0:ffff:9015:fe81
144.21.254.130 0:0:0:0:0:ffff:9015:fe82
144.21.254.131 0:0:0:0:0:ffff:9015:fe83
144.21.254.132 0:0:0:0:0:ffff:9015:fe84
144.21.254.133 0:0:0:0:0:ffff:9015:fe85
144.21.254.134 0:0:0:0:0:ffff:9015:fe86
144.21.254.135 0:0:0:0:0:ffff:9015:fe87
144.21.254.136 0:0:0:0:0:ffff:9015:fe88
144.21.254.137 0:0:0:0:0:ffff:9015:fe89
144.21.254.138 0:0:0:0:0:ffff:9015:fe8a
144.21.254.139 0:0:0:0:0:ffff:9015:fe8b
144.21.254.140 0:0:0:0:0:ffff:9015:fe8c
144.21.254.141 0:0:0:0:0:ffff:9015:fe8d
144.21.254.142 0:0:0:0:0:ffff:9015:fe8e
144.21.254.143 0:0:0:0:0:ffff:9015:fe8f
144.21.254.144 0:0:0:0:0:ffff:9015:fe90
144.21.254.145 0:0:0:0:0:ffff:9015:fe91
144.21.254.146 0:0:0:0:0:ffff:9015:fe92
144.21.254.147 0:0:0:0:0:ffff:9015:fe93
144.21.254.148 0:0:0:0:0:ffff:9015:fe94
144.21.254.149 0:0:0:0:0:ffff:9015:fe95
144.21.254.150 0:0:0:0:0:ffff:9015:fe96
144.21.254.151 0:0:0:0:0:ffff:9015:fe97
144.21.254.152 0:0:0:0:0:ffff:9015:fe98
144.21.254.153 0:0:0:0:0:ffff:9015:fe99
144.21.254.154 0:0:0:0:0:ffff:9015:fe9a
144.21.254.155 0:0:0:0:0:ffff:9015:fe9b
144.21.254.156 0:0:0:0:0:ffff:9015:fe9c
144.21.254.157 0:0:0:0:0:ffff:9015:fe9d
144.21.254.158 0:0:0:0:0:ffff:9015:fe9e
144.21.254.159 0:0:0:0:0:ffff:9015:fe9f
144.21.254.160 0:0:0:0:0:ffff:9015:fea0
144.21.254.161 0:0:0:0:0:ffff:9015:fea1
144.21.254.162 0:0:0:0:0:ffff:9015:fea2
144.21.254.163 0:0:0:0:0:ffff:9015:fea3
144.21.254.164 0:0:0:0:0:ffff:9015:fea4
144.21.254.165 0:0:0:0:0:ffff:9015:fea5
144.21.254.166 0:0:0:0:0:ffff:9015:fea6
144.21.254.167 0:0:0:0:0:ffff:9015:fea7
144.21.254.168 0:0:0:0:0:ffff:9015:fea8
144.21.254.169 0:0:0:0:0:ffff:9015:fea9
144.21.254.170 0:0:0:0:0:ffff:9015:feaa
144.21.254.171 0:0:0:0:0:ffff:9015:feab
144.21.254.172 0:0:0:0:0:ffff:9015:feac
144.21.254.173 0:0:0:0:0:ffff:9015:fead
144.21.254.174 0:0:0:0:0:ffff:9015:feae
144.21.254.175 0:0:0:0:0:ffff:9015:feaf
144.21.254.176 0:0:0:0:0:ffff:9015:feb0
144.21.254.177 0:0:0:0:0:ffff:9015:feb1
144.21.254.178 0:0:0:0:0:ffff:9015:feb2
144.21.254.179 0:0:0:0:0:ffff:9015:feb3
144.21.254.180 0:0:0:0:0:ffff:9015:feb4


144.21.254.181 0:0:0:0:0:ffff:9015:feb5
144.21.254.182 0:0:0:0:0:ffff:9015:feb6
144.21.254.183 0:0:0:0:0:ffff:9015:feb7
144.21.254.184 0:0:0:0:0:ffff:9015:feb8
144.21.254.185 0:0:0:0:0:ffff:9015:feb9
144.21.254.186 0:0:0:0:0:ffff:9015:feba
144.21.254.187 0:0:0:0:0:ffff:9015:febb
144.21.254.188 0:0:0:0:0:ffff:9015:febc
144.21.254.189 0:0:0:0:0:ffff:9015:febd
144.21.254.190 0:0:0:0:0:ffff:9015:febe
144.21.254.191 0:0:0:0:0:ffff:9015:febf
144.21.254.192 0:0:0:0:0:ffff:9015:fec0
144.21.254.193 0:0:0:0:0:ffff:9015:fec1
144.21.254.194 0:0:0:0:0:ffff:9015:fec2
144.21.254.195 0:0:0:0:0:ffff:9015:fec3
144.21.254.196 0:0:0:0:0:ffff:9015:fec4
144.21.254.197 0:0:0:0:0:ffff:9015:fec5
144.21.254.198 0:0:0:0:0:ffff:9015:fec6
144.21.254.199 0:0:0:0:0:ffff:9015:fec7
144.21.254.200 0:0:0:0:0:ffff:9015:fec8
144.21.254.201 0:0:0:0:0:ffff:9015:fec9
144.21.254.202 0:0:0:0:0:ffff:9015:feca
144.21.254.203 0:0:0:0:0:ffff:9015:fecb
144.21.254.204 0:0:0:0:0:ffff:9015:fecc
144.21.254.205 0:0:0:0:0:ffff:9015:fecd
144.21.254.206 0:0:0:0:0:ffff:9015:fece
144.21.254.207 0:0:0:0:0:ffff:9015:fecf
144.21.254.208 0:0:0:0:0:ffff:9015:fed0
144.21.254.209 0:0:0:0:0:ffff:9015:fed1
144.21.254.210 0:0:0:0:0:ffff:9015:fed2
144.21.254.211 0:0:0:0:0:ffff:9015:fed3
144.21.254.212 0:0:0:0:0:ffff:9015:fed4
144.21.254.213 0:0:0:0:0:ffff:9015:fed5
144.21.254.214 0:0:0:0:0:ffff:9015:fed6
144.21.254.215 0:0:0:0:0:ffff:9015:fed7
144.21.254.216 0:0:0:0:0:ffff:9015:fed8
144.21.254.217 0:0:0:0:0:ffff:9015:fed9
144.21.254.218 0:0:0:0:0:ffff:9015:feda
144.21.254.219 0:0:0:0:0:ffff:9015:fedb
144.21.254.220 0:0:0:0:0:ffff:9015:fedc
144.21.254.221 0:0:0:0:0:ffff:9015:fedd
144.21.254.222 0:0:0:0:0:ffff:9015:fede
144.21.254.223 0:0:0:0:0:ffff:9015:fedf
144.21.254.224 0:0:0:0:0:ffff:9015:fee0
144.21.254.225 0:0:0:0:0:ffff:9015:fee1
144.21.254.226 0:0:0:0:0:ffff:9015:fee2
144.21.254.227 0:0:0:0:0:ffff:9015:fee3
144.21.254.228 0:0:0:0:0:ffff:9015:fee4
144.21.254.229 0:0:0:0:0:ffff:9015:fee5
144.21.254.230 0:0:0:0:0:ffff:9015:fee6
144.21.254.231 0:0:0:0:0:ffff:9015:fee7
144.21.254.232 0:0:0:0:0:ffff:9015:fee8
144.21.254.233 0:0:0:0:0:ffff:9015:fee9
144.21.254.234 0:0:0:0:0:ffff:9015:feea
144.21.254.235 0:0:0:0:0:ffff:9015:feeb
144.21.254.236 0:0:0:0:0:ffff:9015:feec
144.21.254.237 0:0:0:0:0:ffff:9015:feed
144.21.254.238 0:0:0:0:0:ffff:9015:feee
144.21.254.239 0:0:0:0:0:ffff:9015:feef
144.21.254.240 0:0:0:0:0:ffff:9015:fef0
144.21.254.241 0:0:0:0:0:ffff:9015:fef1
144.21.254.242 0:0:0:0:0:ffff:9015:fef2
144.21.254.243 0:0:0:0:0:ffff:9015:fef3
144.21.254.244 0:0:0:0:0:ffff:9015:fef4
144.21.254.245 0:0:0:0:0:ffff:9015:fef5
144.21.254.246 0:0:0:0:0:ffff:9015:fef6
144.21.254.247 0:0:0:0:0:ffff:9015:fef7
144.21.254.248 0:0:0:0:0:ffff:9015:fef8
144.21.254.249 0:0:0:0:0:ffff:9015:fef9
144.21.254.250 0:0:0:0:0:ffff:9015:fefa
144.21.254.251 0:0:0:0:0:ffff:9015:fefb
144.21.254.252 0:0:0:0:0:ffff:9015:fefc
144.21.254.253 0:0:0:0:0:ffff:9015:fefd
144.21.254.254 0:0:0:0:0:ffff:9015:fefe
144.21.254.255 0:0:0:0:0:ffff:9015:feff


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.