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
21.59.16.1 0:0:0:0:0:ffff:153b:1001
21.59.16.2 0:0:0:0:0:ffff:153b:1002
21.59.16.3 0:0:0:0:0:ffff:153b:1003
21.59.16.4 0:0:0:0:0:ffff:153b:1004
21.59.16.5 0:0:0:0:0:ffff:153b:1005
21.59.16.6 0:0:0:0:0:ffff:153b:1006
21.59.16.7 0:0:0:0:0:ffff:153b:1007
21.59.16.8 0:0:0:0:0:ffff:153b:1008
21.59.16.9 0:0:0:0:0:ffff:153b:1009
21.59.16.10 0:0:0:0:0:ffff:153b:100a
21.59.16.11 0:0:0:0:0:ffff:153b:100b
21.59.16.12 0:0:0:0:0:ffff:153b:100c
21.59.16.13 0:0:0:0:0:ffff:153b:100d
21.59.16.14 0:0:0:0:0:ffff:153b:100e
21.59.16.15 0:0:0:0:0:ffff:153b:100f
21.59.16.16 0:0:0:0:0:ffff:153b:1010
21.59.16.17 0:0:0:0:0:ffff:153b:1011
21.59.16.18 0:0:0:0:0:ffff:153b:1012
21.59.16.19 0:0:0:0:0:ffff:153b:1013
21.59.16.20 0:0:0:0:0:ffff:153b:1014
21.59.16.21 0:0:0:0:0:ffff:153b:1015
21.59.16.22 0:0:0:0:0:ffff:153b:1016
21.59.16.23 0:0:0:0:0:ffff:153b:1017
21.59.16.24 0:0:0:0:0:ffff:153b:1018
21.59.16.25 0:0:0:0:0:ffff:153b:1019
21.59.16.26 0:0:0:0:0:ffff:153b:101a
21.59.16.27 0:0:0:0:0:ffff:153b:101b
21.59.16.28 0:0:0:0:0:ffff:153b:101c
21.59.16.29 0:0:0:0:0:ffff:153b:101d
21.59.16.30 0:0:0:0:0:ffff:153b:101e
21.59.16.31 0:0:0:0:0:ffff:153b:101f
21.59.16.32 0:0:0:0:0:ffff:153b:1020
21.59.16.33 0:0:0:0:0:ffff:153b:1021
21.59.16.34 0:0:0:0:0:ffff:153b:1022
21.59.16.35 0:0:0:0:0:ffff:153b:1023
21.59.16.36 0:0:0:0:0:ffff:153b:1024
21.59.16.37 0:0:0:0:0:ffff:153b:1025
21.59.16.38 0:0:0:0:0:ffff:153b:1026
21.59.16.39 0:0:0:0:0:ffff:153b:1027
21.59.16.40 0:0:0:0:0:ffff:153b:1028
21.59.16.41 0:0:0:0:0:ffff:153b:1029
21.59.16.42 0:0:0:0:0:ffff:153b:102a
21.59.16.43 0:0:0:0:0:ffff:153b:102b
21.59.16.44 0:0:0:0:0:ffff:153b:102c
21.59.16.45 0:0:0:0:0:ffff:153b:102d
21.59.16.46 0:0:0:0:0:ffff:153b:102e
21.59.16.47 0:0:0:0:0:ffff:153b:102f
21.59.16.48 0:0:0:0:0:ffff:153b:1030
21.59.16.49 0:0:0:0:0:ffff:153b:1031
21.59.16.50 0:0:0:0:0:ffff:153b:1032
21.59.16.51 0:0:0:0:0:ffff:153b:1033
21.59.16.52 0:0:0:0:0:ffff:153b:1034
21.59.16.53 0:0:0:0:0:ffff:153b:1035
21.59.16.54 0:0:0:0:0:ffff:153b:1036
21.59.16.55 0:0:0:0:0:ffff:153b:1037
21.59.16.56 0:0:0:0:0:ffff:153b:1038
21.59.16.57 0:0:0:0:0:ffff:153b:1039
21.59.16.58 0:0:0:0:0:ffff:153b:103a
21.59.16.59 0:0:0:0:0:ffff:153b:103b
21.59.16.60 0:0:0:0:0:ffff:153b:103c


21.59.16.61 0:0:0:0:0:ffff:153b:103d
21.59.16.62 0:0:0:0:0:ffff:153b:103e
21.59.16.63 0:0:0:0:0:ffff:153b:103f
21.59.16.64 0:0:0:0:0:ffff:153b:1040
21.59.16.65 0:0:0:0:0:ffff:153b:1041
21.59.16.66 0:0:0:0:0:ffff:153b:1042
21.59.16.67 0:0:0:0:0:ffff:153b:1043
21.59.16.68 0:0:0:0:0:ffff:153b:1044
21.59.16.69 0:0:0:0:0:ffff:153b:1045
21.59.16.70 0:0:0:0:0:ffff:153b:1046
21.59.16.71 0:0:0:0:0:ffff:153b:1047
21.59.16.72 0:0:0:0:0:ffff:153b:1048
21.59.16.73 0:0:0:0:0:ffff:153b:1049
21.59.16.74 0:0:0:0:0:ffff:153b:104a
21.59.16.75 0:0:0:0:0:ffff:153b:104b
21.59.16.76 0:0:0:0:0:ffff:153b:104c
21.59.16.77 0:0:0:0:0:ffff:153b:104d
21.59.16.78 0:0:0:0:0:ffff:153b:104e
21.59.16.79 0:0:0:0:0:ffff:153b:104f
21.59.16.80 0:0:0:0:0:ffff:153b:1050
21.59.16.81 0:0:0:0:0:ffff:153b:1051
21.59.16.82 0:0:0:0:0:ffff:153b:1052
21.59.16.83 0:0:0:0:0:ffff:153b:1053
21.59.16.84 0:0:0:0:0:ffff:153b:1054
21.59.16.85 0:0:0:0:0:ffff:153b:1055
21.59.16.86 0:0:0:0:0:ffff:153b:1056
21.59.16.87 0:0:0:0:0:ffff:153b:1057
21.59.16.88 0:0:0:0:0:ffff:153b:1058
21.59.16.89 0:0:0:0:0:ffff:153b:1059
21.59.16.90 0:0:0:0:0:ffff:153b:105a
21.59.16.91 0:0:0:0:0:ffff:153b:105b
21.59.16.92 0:0:0:0:0:ffff:153b:105c
21.59.16.93 0:0:0:0:0:ffff:153b:105d
21.59.16.94 0:0:0:0:0:ffff:153b:105e
21.59.16.95 0:0:0:0:0:ffff:153b:105f
21.59.16.96 0:0:0:0:0:ffff:153b:1060
21.59.16.97 0:0:0:0:0:ffff:153b:1061
21.59.16.98 0:0:0:0:0:ffff:153b:1062
21.59.16.99 0:0:0:0:0:ffff:153b:1063
21.59.16.100 0:0:0:0:0:ffff:153b:1064
21.59.16.101 0:0:0:0:0:ffff:153b:1065
21.59.16.102 0:0:0:0:0:ffff:153b:1066
21.59.16.103 0:0:0:0:0:ffff:153b:1067
21.59.16.104 0:0:0:0:0:ffff:153b:1068
21.59.16.105 0:0:0:0:0:ffff:153b:1069
21.59.16.106 0:0:0:0:0:ffff:153b:106a
21.59.16.107 0:0:0:0:0:ffff:153b:106b
21.59.16.108 0:0:0:0:0:ffff:153b:106c
21.59.16.109 0:0:0:0:0:ffff:153b:106d
21.59.16.110 0:0:0:0:0:ffff:153b:106e
21.59.16.111 0:0:0:0:0:ffff:153b:106f
21.59.16.112 0:0:0:0:0:ffff:153b:1070
21.59.16.113 0:0:0:0:0:ffff:153b:1071
21.59.16.114 0:0:0:0:0:ffff:153b:1072
21.59.16.115 0:0:0:0:0:ffff:153b:1073
21.59.16.116 0:0:0:0:0:ffff:153b:1074
21.59.16.117 0:0:0:0:0:ffff:153b:1075
21.59.16.118 0:0:0:0:0:ffff:153b:1076
21.59.16.119 0:0:0:0:0:ffff:153b:1077
21.59.16.120 0:0:0:0:0:ffff:153b:1078


21.59.16.121 0:0:0:0:0:ffff:153b:1079
21.59.16.122 0:0:0:0:0:ffff:153b:107a
21.59.16.123 0:0:0:0:0:ffff:153b:107b
21.59.16.124 0:0:0:0:0:ffff:153b:107c
21.59.16.125 0:0:0:0:0:ffff:153b:107d
21.59.16.126 0:0:0:0:0:ffff:153b:107e
21.59.16.127 0:0:0:0:0:ffff:153b:107f
21.59.16.128 0:0:0:0:0:ffff:153b:1080
21.59.16.129 0:0:0:0:0:ffff:153b:1081
21.59.16.130 0:0:0:0:0:ffff:153b:1082
21.59.16.131 0:0:0:0:0:ffff:153b:1083
21.59.16.132 0:0:0:0:0:ffff:153b:1084
21.59.16.133 0:0:0:0:0:ffff:153b:1085
21.59.16.134 0:0:0:0:0:ffff:153b:1086
21.59.16.135 0:0:0:0:0:ffff:153b:1087
21.59.16.136 0:0:0:0:0:ffff:153b:1088
21.59.16.137 0:0:0:0:0:ffff:153b:1089
21.59.16.138 0:0:0:0:0:ffff:153b:108a
21.59.16.139 0:0:0:0:0:ffff:153b:108b
21.59.16.140 0:0:0:0:0:ffff:153b:108c
21.59.16.141 0:0:0:0:0:ffff:153b:108d
21.59.16.142 0:0:0:0:0:ffff:153b:108e
21.59.16.143 0:0:0:0:0:ffff:153b:108f
21.59.16.144 0:0:0:0:0:ffff:153b:1090
21.59.16.145 0:0:0:0:0:ffff:153b:1091
21.59.16.146 0:0:0:0:0:ffff:153b:1092
21.59.16.147 0:0:0:0:0:ffff:153b:1093
21.59.16.148 0:0:0:0:0:ffff:153b:1094
21.59.16.149 0:0:0:0:0:ffff:153b:1095
21.59.16.150 0:0:0:0:0:ffff:153b:1096
21.59.16.151 0:0:0:0:0:ffff:153b:1097
21.59.16.152 0:0:0:0:0:ffff:153b:1098
21.59.16.153 0:0:0:0:0:ffff:153b:1099
21.59.16.154 0:0:0:0:0:ffff:153b:109a
21.59.16.155 0:0:0:0:0:ffff:153b:109b
21.59.16.156 0:0:0:0:0:ffff:153b:109c
21.59.16.157 0:0:0:0:0:ffff:153b:109d
21.59.16.158 0:0:0:0:0:ffff:153b:109e
21.59.16.159 0:0:0:0:0:ffff:153b:109f
21.59.16.160 0:0:0:0:0:ffff:153b:10a0
21.59.16.161 0:0:0:0:0:ffff:153b:10a1
21.59.16.162 0:0:0:0:0:ffff:153b:10a2
21.59.16.163 0:0:0:0:0:ffff:153b:10a3
21.59.16.164 0:0:0:0:0:ffff:153b:10a4
21.59.16.165 0:0:0:0:0:ffff:153b:10a5
21.59.16.166 0:0:0:0:0:ffff:153b:10a6
21.59.16.167 0:0:0:0:0:ffff:153b:10a7
21.59.16.168 0:0:0:0:0:ffff:153b:10a8
21.59.16.169 0:0:0:0:0:ffff:153b:10a9
21.59.16.170 0:0:0:0:0:ffff:153b:10aa
21.59.16.171 0:0:0:0:0:ffff:153b:10ab
21.59.16.172 0:0:0:0:0:ffff:153b:10ac
21.59.16.173 0:0:0:0:0:ffff:153b:10ad
21.59.16.174 0:0:0:0:0:ffff:153b:10ae
21.59.16.175 0:0:0:0:0:ffff:153b:10af
21.59.16.176 0:0:0:0:0:ffff:153b:10b0
21.59.16.177 0:0:0:0:0:ffff:153b:10b1
21.59.16.178 0:0:0:0:0:ffff:153b:10b2
21.59.16.179 0:0:0:0:0:ffff:153b:10b3
21.59.16.180 0:0:0:0:0:ffff:153b:10b4


21.59.16.181 0:0:0:0:0:ffff:153b:10b5
21.59.16.182 0:0:0:0:0:ffff:153b:10b6
21.59.16.183 0:0:0:0:0:ffff:153b:10b7
21.59.16.184 0:0:0:0:0:ffff:153b:10b8
21.59.16.185 0:0:0:0:0:ffff:153b:10b9
21.59.16.186 0:0:0:0:0:ffff:153b:10ba
21.59.16.187 0:0:0:0:0:ffff:153b:10bb
21.59.16.188 0:0:0:0:0:ffff:153b:10bc
21.59.16.189 0:0:0:0:0:ffff:153b:10bd
21.59.16.190 0:0:0:0:0:ffff:153b:10be
21.59.16.191 0:0:0:0:0:ffff:153b:10bf
21.59.16.192 0:0:0:0:0:ffff:153b:10c0
21.59.16.193 0:0:0:0:0:ffff:153b:10c1
21.59.16.194 0:0:0:0:0:ffff:153b:10c2
21.59.16.195 0:0:0:0:0:ffff:153b:10c3
21.59.16.196 0:0:0:0:0:ffff:153b:10c4
21.59.16.197 0:0:0:0:0:ffff:153b:10c5
21.59.16.198 0:0:0:0:0:ffff:153b:10c6
21.59.16.199 0:0:0:0:0:ffff:153b:10c7
21.59.16.200 0:0:0:0:0:ffff:153b:10c8
21.59.16.201 0:0:0:0:0:ffff:153b:10c9
21.59.16.202 0:0:0:0:0:ffff:153b:10ca
21.59.16.203 0:0:0:0:0:ffff:153b:10cb
21.59.16.204 0:0:0:0:0:ffff:153b:10cc
21.59.16.205 0:0:0:0:0:ffff:153b:10cd
21.59.16.206 0:0:0:0:0:ffff:153b:10ce
21.59.16.207 0:0:0:0:0:ffff:153b:10cf
21.59.16.208 0:0:0:0:0:ffff:153b:10d0
21.59.16.209 0:0:0:0:0:ffff:153b:10d1
21.59.16.210 0:0:0:0:0:ffff:153b:10d2
21.59.16.211 0:0:0:0:0:ffff:153b:10d3
21.59.16.212 0:0:0:0:0:ffff:153b:10d4
21.59.16.213 0:0:0:0:0:ffff:153b:10d5
21.59.16.214 0:0:0:0:0:ffff:153b:10d6
21.59.16.215 0:0:0:0:0:ffff:153b:10d7
21.59.16.216 0:0:0:0:0:ffff:153b:10d8
21.59.16.217 0:0:0:0:0:ffff:153b:10d9
21.59.16.218 0:0:0:0:0:ffff:153b:10da
21.59.16.219 0:0:0:0:0:ffff:153b:10db
21.59.16.220 0:0:0:0:0:ffff:153b:10dc
21.59.16.221 0:0:0:0:0:ffff:153b:10dd
21.59.16.222 0:0:0:0:0:ffff:153b:10de
21.59.16.223 0:0:0:0:0:ffff:153b:10df
21.59.16.224 0:0:0:0:0:ffff:153b:10e0
21.59.16.225 0:0:0:0:0:ffff:153b:10e1
21.59.16.226 0:0:0:0:0:ffff:153b:10e2
21.59.16.227 0:0:0:0:0:ffff:153b:10e3
21.59.16.228 0:0:0:0:0:ffff:153b:10e4
21.59.16.229 0:0:0:0:0:ffff:153b:10e5
21.59.16.230 0:0:0:0:0:ffff:153b:10e6
21.59.16.231 0:0:0:0:0:ffff:153b:10e7
21.59.16.232 0:0:0:0:0:ffff:153b:10e8
21.59.16.233 0:0:0:0:0:ffff:153b:10e9
21.59.16.234 0:0:0:0:0:ffff:153b:10ea
21.59.16.235 0:0:0:0:0:ffff:153b:10eb
21.59.16.236 0:0:0:0:0:ffff:153b:10ec
21.59.16.237 0:0:0:0:0:ffff:153b:10ed
21.59.16.238 0:0:0:0:0:ffff:153b:10ee
21.59.16.239 0:0:0:0:0:ffff:153b:10ef
21.59.16.240 0:0:0:0:0:ffff:153b:10f0
21.59.16.241 0:0:0:0:0:ffff:153b:10f1
21.59.16.242 0:0:0:0:0:ffff:153b:10f2
21.59.16.243 0:0:0:0:0:ffff:153b:10f3
21.59.16.244 0:0:0:0:0:ffff:153b:10f4
21.59.16.245 0:0:0:0:0:ffff:153b:10f5
21.59.16.246 0:0:0:0:0:ffff:153b:10f6
21.59.16.247 0:0:0:0:0:ffff:153b:10f7
21.59.16.248 0:0:0:0:0:ffff:153b:10f8
21.59.16.249 0:0:0:0:0:ffff:153b:10f9
21.59.16.250 0:0:0:0:0:ffff:153b:10fa
21.59.16.251 0:0:0:0:0:ffff:153b:10fb
21.59.16.252 0:0:0:0:0:ffff:153b:10fc
21.59.16.253 0:0:0:0:0:ffff:153b:10fd
21.59.16.254 0:0:0:0:0:ffff:153b:10fe
21.59.16.255 0:0:0:0:0:ffff:153b: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.