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
144.21.16.1 0:0:0:0:0:ffff:9015:1001
144.21.16.2 0:0:0:0:0:ffff:9015:1002
144.21.16.3 0:0:0:0:0:ffff:9015:1003
144.21.16.4 0:0:0:0:0:ffff:9015:1004
144.21.16.5 0:0:0:0:0:ffff:9015:1005
144.21.16.6 0:0:0:0:0:ffff:9015:1006
144.21.16.7 0:0:0:0:0:ffff:9015:1007
144.21.16.8 0:0:0:0:0:ffff:9015:1008
144.21.16.9 0:0:0:0:0:ffff:9015:1009
144.21.16.10 0:0:0:0:0:ffff:9015:100a
144.21.16.11 0:0:0:0:0:ffff:9015:100b
144.21.16.12 0:0:0:0:0:ffff:9015:100c
144.21.16.13 0:0:0:0:0:ffff:9015:100d
144.21.16.14 0:0:0:0:0:ffff:9015:100e
144.21.16.15 0:0:0:0:0:ffff:9015:100f
144.21.16.16 0:0:0:0:0:ffff:9015:1010
144.21.16.17 0:0:0:0:0:ffff:9015:1011
144.21.16.18 0:0:0:0:0:ffff:9015:1012
144.21.16.19 0:0:0:0:0:ffff:9015:1013
144.21.16.20 0:0:0:0:0:ffff:9015:1014
144.21.16.21 0:0:0:0:0:ffff:9015:1015
144.21.16.22 0:0:0:0:0:ffff:9015:1016
144.21.16.23 0:0:0:0:0:ffff:9015:1017
144.21.16.24 0:0:0:0:0:ffff:9015:1018
144.21.16.25 0:0:0:0:0:ffff:9015:1019
144.21.16.26 0:0:0:0:0:ffff:9015:101a
144.21.16.27 0:0:0:0:0:ffff:9015:101b
144.21.16.28 0:0:0:0:0:ffff:9015:101c
144.21.16.29 0:0:0:0:0:ffff:9015:101d
144.21.16.30 0:0:0:0:0:ffff:9015:101e
144.21.16.31 0:0:0:0:0:ffff:9015:101f
144.21.16.32 0:0:0:0:0:ffff:9015:1020
144.21.16.33 0:0:0:0:0:ffff:9015:1021
144.21.16.34 0:0:0:0:0:ffff:9015:1022
144.21.16.35 0:0:0:0:0:ffff:9015:1023
144.21.16.36 0:0:0:0:0:ffff:9015:1024
144.21.16.37 0:0:0:0:0:ffff:9015:1025
144.21.16.38 0:0:0:0:0:ffff:9015:1026
144.21.16.39 0:0:0:0:0:ffff:9015:1027
144.21.16.40 0:0:0:0:0:ffff:9015:1028
144.21.16.41 0:0:0:0:0:ffff:9015:1029
144.21.16.42 0:0:0:0:0:ffff:9015:102a
144.21.16.43 0:0:0:0:0:ffff:9015:102b
144.21.16.44 0:0:0:0:0:ffff:9015:102c
144.21.16.45 0:0:0:0:0:ffff:9015:102d
144.21.16.46 0:0:0:0:0:ffff:9015:102e
144.21.16.47 0:0:0:0:0:ffff:9015:102f
144.21.16.48 0:0:0:0:0:ffff:9015:1030
144.21.16.49 0:0:0:0:0:ffff:9015:1031
144.21.16.50 0:0:0:0:0:ffff:9015:1032
144.21.16.51 0:0:0:0:0:ffff:9015:1033
144.21.16.52 0:0:0:0:0:ffff:9015:1034
144.21.16.53 0:0:0:0:0:ffff:9015:1035
144.21.16.54 0:0:0:0:0:ffff:9015:1036
144.21.16.55 0:0:0:0:0:ffff:9015:1037
144.21.16.56 0:0:0:0:0:ffff:9015:1038
144.21.16.57 0:0:0:0:0:ffff:9015:1039
144.21.16.58 0:0:0:0:0:ffff:9015:103a
144.21.16.59 0:0:0:0:0:ffff:9015:103b
144.21.16.60 0:0:0:0:0:ffff:9015:103c


144.21.16.61 0:0:0:0:0:ffff:9015:103d
144.21.16.62 0:0:0:0:0:ffff:9015:103e
144.21.16.63 0:0:0:0:0:ffff:9015:103f
144.21.16.64 0:0:0:0:0:ffff:9015:1040
144.21.16.65 0:0:0:0:0:ffff:9015:1041
144.21.16.66 0:0:0:0:0:ffff:9015:1042
144.21.16.67 0:0:0:0:0:ffff:9015:1043
144.21.16.68 0:0:0:0:0:ffff:9015:1044
144.21.16.69 0:0:0:0:0:ffff:9015:1045
144.21.16.70 0:0:0:0:0:ffff:9015:1046
144.21.16.71 0:0:0:0:0:ffff:9015:1047
144.21.16.72 0:0:0:0:0:ffff:9015:1048
144.21.16.73 0:0:0:0:0:ffff:9015:1049
144.21.16.74 0:0:0:0:0:ffff:9015:104a
144.21.16.75 0:0:0:0:0:ffff:9015:104b
144.21.16.76 0:0:0:0:0:ffff:9015:104c
144.21.16.77 0:0:0:0:0:ffff:9015:104d
144.21.16.78 0:0:0:0:0:ffff:9015:104e
144.21.16.79 0:0:0:0:0:ffff:9015:104f
144.21.16.80 0:0:0:0:0:ffff:9015:1050
144.21.16.81 0:0:0:0:0:ffff:9015:1051
144.21.16.82 0:0:0:0:0:ffff:9015:1052
144.21.16.83 0:0:0:0:0:ffff:9015:1053
144.21.16.84 0:0:0:0:0:ffff:9015:1054
144.21.16.85 0:0:0:0:0:ffff:9015:1055
144.21.16.86 0:0:0:0:0:ffff:9015:1056
144.21.16.87 0:0:0:0:0:ffff:9015:1057
144.21.16.88 0:0:0:0:0:ffff:9015:1058
144.21.16.89 0:0:0:0:0:ffff:9015:1059
144.21.16.90 0:0:0:0:0:ffff:9015:105a
144.21.16.91 0:0:0:0:0:ffff:9015:105b
144.21.16.92 0:0:0:0:0:ffff:9015:105c
144.21.16.93 0:0:0:0:0:ffff:9015:105d
144.21.16.94 0:0:0:0:0:ffff:9015:105e
144.21.16.95 0:0:0:0:0:ffff:9015:105f
144.21.16.96 0:0:0:0:0:ffff:9015:1060
144.21.16.97 0:0:0:0:0:ffff:9015:1061
144.21.16.98 0:0:0:0:0:ffff:9015:1062
144.21.16.99 0:0:0:0:0:ffff:9015:1063
144.21.16.100 0:0:0:0:0:ffff:9015:1064
144.21.16.101 0:0:0:0:0:ffff:9015:1065
144.21.16.102 0:0:0:0:0:ffff:9015:1066
144.21.16.103 0:0:0:0:0:ffff:9015:1067
144.21.16.104 0:0:0:0:0:ffff:9015:1068
144.21.16.105 0:0:0:0:0:ffff:9015:1069
144.21.16.106 0:0:0:0:0:ffff:9015:106a
144.21.16.107 0:0:0:0:0:ffff:9015:106b
144.21.16.108 0:0:0:0:0:ffff:9015:106c
144.21.16.109 0:0:0:0:0:ffff:9015:106d
144.21.16.110 0:0:0:0:0:ffff:9015:106e
144.21.16.111 0:0:0:0:0:ffff:9015:106f
144.21.16.112 0:0:0:0:0:ffff:9015:1070
144.21.16.113 0:0:0:0:0:ffff:9015:1071
144.21.16.114 0:0:0:0:0:ffff:9015:1072
144.21.16.115 0:0:0:0:0:ffff:9015:1073
144.21.16.116 0:0:0:0:0:ffff:9015:1074
144.21.16.117 0:0:0:0:0:ffff:9015:1075
144.21.16.118 0:0:0:0:0:ffff:9015:1076
144.21.16.119 0:0:0:0:0:ffff:9015:1077
144.21.16.120 0:0:0:0:0:ffff:9015:1078


144.21.16.121 0:0:0:0:0:ffff:9015:1079
144.21.16.122 0:0:0:0:0:ffff:9015:107a
144.21.16.123 0:0:0:0:0:ffff:9015:107b
144.21.16.124 0:0:0:0:0:ffff:9015:107c
144.21.16.125 0:0:0:0:0:ffff:9015:107d
144.21.16.126 0:0:0:0:0:ffff:9015:107e
144.21.16.127 0:0:0:0:0:ffff:9015:107f
144.21.16.128 0:0:0:0:0:ffff:9015:1080
144.21.16.129 0:0:0:0:0:ffff:9015:1081
144.21.16.130 0:0:0:0:0:ffff:9015:1082
144.21.16.131 0:0:0:0:0:ffff:9015:1083
144.21.16.132 0:0:0:0:0:ffff:9015:1084
144.21.16.133 0:0:0:0:0:ffff:9015:1085
144.21.16.134 0:0:0:0:0:ffff:9015:1086
144.21.16.135 0:0:0:0:0:ffff:9015:1087
144.21.16.136 0:0:0:0:0:ffff:9015:1088
144.21.16.137 0:0:0:0:0:ffff:9015:1089
144.21.16.138 0:0:0:0:0:ffff:9015:108a
144.21.16.139 0:0:0:0:0:ffff:9015:108b
144.21.16.140 0:0:0:0:0:ffff:9015:108c
144.21.16.141 0:0:0:0:0:ffff:9015:108d
144.21.16.142 0:0:0:0:0:ffff:9015:108e
144.21.16.143 0:0:0:0:0:ffff:9015:108f
144.21.16.144 0:0:0:0:0:ffff:9015:1090
144.21.16.145 0:0:0:0:0:ffff:9015:1091
144.21.16.146 0:0:0:0:0:ffff:9015:1092
144.21.16.147 0:0:0:0:0:ffff:9015:1093
144.21.16.148 0:0:0:0:0:ffff:9015:1094
144.21.16.149 0:0:0:0:0:ffff:9015:1095
144.21.16.150 0:0:0:0:0:ffff:9015:1096
144.21.16.151 0:0:0:0:0:ffff:9015:1097
144.21.16.152 0:0:0:0:0:ffff:9015:1098
144.21.16.153 0:0:0:0:0:ffff:9015:1099
144.21.16.154 0:0:0:0:0:ffff:9015:109a
144.21.16.155 0:0:0:0:0:ffff:9015:109b
144.21.16.156 0:0:0:0:0:ffff:9015:109c
144.21.16.157 0:0:0:0:0:ffff:9015:109d
144.21.16.158 0:0:0:0:0:ffff:9015:109e
144.21.16.159 0:0:0:0:0:ffff:9015:109f
144.21.16.160 0:0:0:0:0:ffff:9015:10a0
144.21.16.161 0:0:0:0:0:ffff:9015:10a1
144.21.16.162 0:0:0:0:0:ffff:9015:10a2
144.21.16.163 0:0:0:0:0:ffff:9015:10a3
144.21.16.164 0:0:0:0:0:ffff:9015:10a4
144.21.16.165 0:0:0:0:0:ffff:9015:10a5
144.21.16.166 0:0:0:0:0:ffff:9015:10a6
144.21.16.167 0:0:0:0:0:ffff:9015:10a7
144.21.16.168 0:0:0:0:0:ffff:9015:10a8
144.21.16.169 0:0:0:0:0:ffff:9015:10a9
144.21.16.170 0:0:0:0:0:ffff:9015:10aa
144.21.16.171 0:0:0:0:0:ffff:9015:10ab
144.21.16.172 0:0:0:0:0:ffff:9015:10ac
144.21.16.173 0:0:0:0:0:ffff:9015:10ad
144.21.16.174 0:0:0:0:0:ffff:9015:10ae
144.21.16.175 0:0:0:0:0:ffff:9015:10af
144.21.16.176 0:0:0:0:0:ffff:9015:10b0
144.21.16.177 0:0:0:0:0:ffff:9015:10b1
144.21.16.178 0:0:0:0:0:ffff:9015:10b2
144.21.16.179 0:0:0:0:0:ffff:9015:10b3
144.21.16.180 0:0:0:0:0:ffff:9015:10b4


144.21.16.181 0:0:0:0:0:ffff:9015:10b5
144.21.16.182 0:0:0:0:0:ffff:9015:10b6
144.21.16.183 0:0:0:0:0:ffff:9015:10b7
144.21.16.184 0:0:0:0:0:ffff:9015:10b8
144.21.16.185 0:0:0:0:0:ffff:9015:10b9
144.21.16.186 0:0:0:0:0:ffff:9015:10ba
144.21.16.187 0:0:0:0:0:ffff:9015:10bb
144.21.16.188 0:0:0:0:0:ffff:9015:10bc
144.21.16.189 0:0:0:0:0:ffff:9015:10bd
144.21.16.190 0:0:0:0:0:ffff:9015:10be
144.21.16.191 0:0:0:0:0:ffff:9015:10bf
144.21.16.192 0:0:0:0:0:ffff:9015:10c0
144.21.16.193 0:0:0:0:0:ffff:9015:10c1
144.21.16.194 0:0:0:0:0:ffff:9015:10c2
144.21.16.195 0:0:0:0:0:ffff:9015:10c3
144.21.16.196 0:0:0:0:0:ffff:9015:10c4
144.21.16.197 0:0:0:0:0:ffff:9015:10c5
144.21.16.198 0:0:0:0:0:ffff:9015:10c6
144.21.16.199 0:0:0:0:0:ffff:9015:10c7
144.21.16.200 0:0:0:0:0:ffff:9015:10c8
144.21.16.201 0:0:0:0:0:ffff:9015:10c9
144.21.16.202 0:0:0:0:0:ffff:9015:10ca
144.21.16.203 0:0:0:0:0:ffff:9015:10cb
144.21.16.204 0:0:0:0:0:ffff:9015:10cc
144.21.16.205 0:0:0:0:0:ffff:9015:10cd
144.21.16.206 0:0:0:0:0:ffff:9015:10ce
144.21.16.207 0:0:0:0:0:ffff:9015:10cf
144.21.16.208 0:0:0:0:0:ffff:9015:10d0
144.21.16.209 0:0:0:0:0:ffff:9015:10d1
144.21.16.210 0:0:0:0:0:ffff:9015:10d2
144.21.16.211 0:0:0:0:0:ffff:9015:10d3
144.21.16.212 0:0:0:0:0:ffff:9015:10d4
144.21.16.213 0:0:0:0:0:ffff:9015:10d5
144.21.16.214 0:0:0:0:0:ffff:9015:10d6
144.21.16.215 0:0:0:0:0:ffff:9015:10d7
144.21.16.216 0:0:0:0:0:ffff:9015:10d8
144.21.16.217 0:0:0:0:0:ffff:9015:10d9
144.21.16.218 0:0:0:0:0:ffff:9015:10da
144.21.16.219 0:0:0:0:0:ffff:9015:10db
144.21.16.220 0:0:0:0:0:ffff:9015:10dc
144.21.16.221 0:0:0:0:0:ffff:9015:10dd
144.21.16.222 0:0:0:0:0:ffff:9015:10de
144.21.16.223 0:0:0:0:0:ffff:9015:10df
144.21.16.224 0:0:0:0:0:ffff:9015:10e0
144.21.16.225 0:0:0:0:0:ffff:9015:10e1
144.21.16.226 0:0:0:0:0:ffff:9015:10e2
144.21.16.227 0:0:0:0:0:ffff:9015:10e3
144.21.16.228 0:0:0:0:0:ffff:9015:10e4
144.21.16.229 0:0:0:0:0:ffff:9015:10e5
144.21.16.230 0:0:0:0:0:ffff:9015:10e6
144.21.16.231 0:0:0:0:0:ffff:9015:10e7
144.21.16.232 0:0:0:0:0:ffff:9015:10e8
144.21.16.233 0:0:0:0:0:ffff:9015:10e9
144.21.16.234 0:0:0:0:0:ffff:9015:10ea
144.21.16.235 0:0:0:0:0:ffff:9015:10eb
144.21.16.236 0:0:0:0:0:ffff:9015:10ec
144.21.16.237 0:0:0:0:0:ffff:9015:10ed
144.21.16.238 0:0:0:0:0:ffff:9015:10ee
144.21.16.239 0:0:0:0:0:ffff:9015:10ef
144.21.16.240 0:0:0:0:0:ffff:9015:10f0
144.21.16.241 0:0:0:0:0:ffff:9015:10f1
144.21.16.242 0:0:0:0:0:ffff:9015:10f2
144.21.16.243 0:0:0:0:0:ffff:9015:10f3
144.21.16.244 0:0:0:0:0:ffff:9015:10f4
144.21.16.245 0:0:0:0:0:ffff:9015:10f5
144.21.16.246 0:0:0:0:0:ffff:9015:10f6
144.21.16.247 0:0:0:0:0:ffff:9015:10f7
144.21.16.248 0:0:0:0:0:ffff:9015:10f8
144.21.16.249 0:0:0:0:0:ffff:9015:10f9
144.21.16.250 0:0:0:0:0:ffff:9015:10fa
144.21.16.251 0:0:0:0:0:ffff:9015:10fb
144.21.16.252 0:0:0:0:0:ffff:9015:10fc
144.21.16.253 0:0:0:0:0:ffff:9015:10fd
144.21.16.254 0:0:0:0:0:ffff:9015:10fe
144.21.16.255 0:0:0:0:0:ffff:9015:10ff


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.