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
11.37.128.1 0:0:0:0:0:ffff:b25:8001
11.37.128.2 0:0:0:0:0:ffff:b25:8002
11.37.128.3 0:0:0:0:0:ffff:b25:8003
11.37.128.4 0:0:0:0:0:ffff:b25:8004
11.37.128.5 0:0:0:0:0:ffff:b25:8005
11.37.128.6 0:0:0:0:0:ffff:b25:8006
11.37.128.7 0:0:0:0:0:ffff:b25:8007
11.37.128.8 0:0:0:0:0:ffff:b25:8008
11.37.128.9 0:0:0:0:0:ffff:b25:8009
11.37.128.10 0:0:0:0:0:ffff:b25:800a
11.37.128.11 0:0:0:0:0:ffff:b25:800b
11.37.128.12 0:0:0:0:0:ffff:b25:800c
11.37.128.13 0:0:0:0:0:ffff:b25:800d
11.37.128.14 0:0:0:0:0:ffff:b25:800e
11.37.128.15 0:0:0:0:0:ffff:b25:800f
11.37.128.16 0:0:0:0:0:ffff:b25:8010
11.37.128.17 0:0:0:0:0:ffff:b25:8011
11.37.128.18 0:0:0:0:0:ffff:b25:8012
11.37.128.19 0:0:0:0:0:ffff:b25:8013
11.37.128.20 0:0:0:0:0:ffff:b25:8014
11.37.128.21 0:0:0:0:0:ffff:b25:8015
11.37.128.22 0:0:0:0:0:ffff:b25:8016
11.37.128.23 0:0:0:0:0:ffff:b25:8017
11.37.128.24 0:0:0:0:0:ffff:b25:8018
11.37.128.25 0:0:0:0:0:ffff:b25:8019
11.37.128.26 0:0:0:0:0:ffff:b25:801a
11.37.128.27 0:0:0:0:0:ffff:b25:801b
11.37.128.28 0:0:0:0:0:ffff:b25:801c
11.37.128.29 0:0:0:0:0:ffff:b25:801d
11.37.128.30 0:0:0:0:0:ffff:b25:801e
11.37.128.31 0:0:0:0:0:ffff:b25:801f
11.37.128.32 0:0:0:0:0:ffff:b25:8020
11.37.128.33 0:0:0:0:0:ffff:b25:8021
11.37.128.34 0:0:0:0:0:ffff:b25:8022
11.37.128.35 0:0:0:0:0:ffff:b25:8023
11.37.128.36 0:0:0:0:0:ffff:b25:8024
11.37.128.37 0:0:0:0:0:ffff:b25:8025
11.37.128.38 0:0:0:0:0:ffff:b25:8026
11.37.128.39 0:0:0:0:0:ffff:b25:8027
11.37.128.40 0:0:0:0:0:ffff:b25:8028
11.37.128.41 0:0:0:0:0:ffff:b25:8029
11.37.128.42 0:0:0:0:0:ffff:b25:802a
11.37.128.43 0:0:0:0:0:ffff:b25:802b
11.37.128.44 0:0:0:0:0:ffff:b25:802c
11.37.128.45 0:0:0:0:0:ffff:b25:802d
11.37.128.46 0:0:0:0:0:ffff:b25:802e
11.37.128.47 0:0:0:0:0:ffff:b25:802f
11.37.128.48 0:0:0:0:0:ffff:b25:8030
11.37.128.49 0:0:0:0:0:ffff:b25:8031
11.37.128.50 0:0:0:0:0:ffff:b25:8032
11.37.128.51 0:0:0:0:0:ffff:b25:8033
11.37.128.52 0:0:0:0:0:ffff:b25:8034
11.37.128.53 0:0:0:0:0:ffff:b25:8035
11.37.128.54 0:0:0:0:0:ffff:b25:8036
11.37.128.55 0:0:0:0:0:ffff:b25:8037
11.37.128.56 0:0:0:0:0:ffff:b25:8038
11.37.128.57 0:0:0:0:0:ffff:b25:8039
11.37.128.58 0:0:0:0:0:ffff:b25:803a
11.37.128.59 0:0:0:0:0:ffff:b25:803b
11.37.128.60 0:0:0:0:0:ffff:b25:803c


11.37.128.61 0:0:0:0:0:ffff:b25:803d
11.37.128.62 0:0:0:0:0:ffff:b25:803e
11.37.128.63 0:0:0:0:0:ffff:b25:803f
11.37.128.64 0:0:0:0:0:ffff:b25:8040
11.37.128.65 0:0:0:0:0:ffff:b25:8041
11.37.128.66 0:0:0:0:0:ffff:b25:8042
11.37.128.67 0:0:0:0:0:ffff:b25:8043
11.37.128.68 0:0:0:0:0:ffff:b25:8044
11.37.128.69 0:0:0:0:0:ffff:b25:8045
11.37.128.70 0:0:0:0:0:ffff:b25:8046
11.37.128.71 0:0:0:0:0:ffff:b25:8047
11.37.128.72 0:0:0:0:0:ffff:b25:8048
11.37.128.73 0:0:0:0:0:ffff:b25:8049
11.37.128.74 0:0:0:0:0:ffff:b25:804a
11.37.128.75 0:0:0:0:0:ffff:b25:804b
11.37.128.76 0:0:0:0:0:ffff:b25:804c
11.37.128.77 0:0:0:0:0:ffff:b25:804d
11.37.128.78 0:0:0:0:0:ffff:b25:804e
11.37.128.79 0:0:0:0:0:ffff:b25:804f
11.37.128.80 0:0:0:0:0:ffff:b25:8050
11.37.128.81 0:0:0:0:0:ffff:b25:8051
11.37.128.82 0:0:0:0:0:ffff:b25:8052
11.37.128.83 0:0:0:0:0:ffff:b25:8053
11.37.128.84 0:0:0:0:0:ffff:b25:8054
11.37.128.85 0:0:0:0:0:ffff:b25:8055
11.37.128.86 0:0:0:0:0:ffff:b25:8056
11.37.128.87 0:0:0:0:0:ffff:b25:8057
11.37.128.88 0:0:0:0:0:ffff:b25:8058
11.37.128.89 0:0:0:0:0:ffff:b25:8059
11.37.128.90 0:0:0:0:0:ffff:b25:805a
11.37.128.91 0:0:0:0:0:ffff:b25:805b
11.37.128.92 0:0:0:0:0:ffff:b25:805c
11.37.128.93 0:0:0:0:0:ffff:b25:805d
11.37.128.94 0:0:0:0:0:ffff:b25:805e
11.37.128.95 0:0:0:0:0:ffff:b25:805f
11.37.128.96 0:0:0:0:0:ffff:b25:8060
11.37.128.97 0:0:0:0:0:ffff:b25:8061
11.37.128.98 0:0:0:0:0:ffff:b25:8062
11.37.128.99 0:0:0:0:0:ffff:b25:8063
11.37.128.100 0:0:0:0:0:ffff:b25:8064
11.37.128.101 0:0:0:0:0:ffff:b25:8065
11.37.128.102 0:0:0:0:0:ffff:b25:8066
11.37.128.103 0:0:0:0:0:ffff:b25:8067
11.37.128.104 0:0:0:0:0:ffff:b25:8068
11.37.128.105 0:0:0:0:0:ffff:b25:8069
11.37.128.106 0:0:0:0:0:ffff:b25:806a
11.37.128.107 0:0:0:0:0:ffff:b25:806b
11.37.128.108 0:0:0:0:0:ffff:b25:806c
11.37.128.109 0:0:0:0:0:ffff:b25:806d
11.37.128.110 0:0:0:0:0:ffff:b25:806e
11.37.128.111 0:0:0:0:0:ffff:b25:806f
11.37.128.112 0:0:0:0:0:ffff:b25:8070
11.37.128.113 0:0:0:0:0:ffff:b25:8071
11.37.128.114 0:0:0:0:0:ffff:b25:8072
11.37.128.115 0:0:0:0:0:ffff:b25:8073
11.37.128.116 0:0:0:0:0:ffff:b25:8074
11.37.128.117 0:0:0:0:0:ffff:b25:8075
11.37.128.118 0:0:0:0:0:ffff:b25:8076
11.37.128.119 0:0:0:0:0:ffff:b25:8077
11.37.128.120 0:0:0:0:0:ffff:b25:8078


11.37.128.121 0:0:0:0:0:ffff:b25:8079
11.37.128.122 0:0:0:0:0:ffff:b25:807a
11.37.128.123 0:0:0:0:0:ffff:b25:807b
11.37.128.124 0:0:0:0:0:ffff:b25:807c
11.37.128.125 0:0:0:0:0:ffff:b25:807d
11.37.128.126 0:0:0:0:0:ffff:b25:807e
11.37.128.127 0:0:0:0:0:ffff:b25:807f
11.37.128.128 0:0:0:0:0:ffff:b25:8080
11.37.128.129 0:0:0:0:0:ffff:b25:8081
11.37.128.130 0:0:0:0:0:ffff:b25:8082
11.37.128.131 0:0:0:0:0:ffff:b25:8083
11.37.128.132 0:0:0:0:0:ffff:b25:8084
11.37.128.133 0:0:0:0:0:ffff:b25:8085
11.37.128.134 0:0:0:0:0:ffff:b25:8086
11.37.128.135 0:0:0:0:0:ffff:b25:8087
11.37.128.136 0:0:0:0:0:ffff:b25:8088
11.37.128.137 0:0:0:0:0:ffff:b25:8089
11.37.128.138 0:0:0:0:0:ffff:b25:808a
11.37.128.139 0:0:0:0:0:ffff:b25:808b
11.37.128.140 0:0:0:0:0:ffff:b25:808c
11.37.128.141 0:0:0:0:0:ffff:b25:808d
11.37.128.142 0:0:0:0:0:ffff:b25:808e
11.37.128.143 0:0:0:0:0:ffff:b25:808f
11.37.128.144 0:0:0:0:0:ffff:b25:8090
11.37.128.145 0:0:0:0:0:ffff:b25:8091
11.37.128.146 0:0:0:0:0:ffff:b25:8092
11.37.128.147 0:0:0:0:0:ffff:b25:8093
11.37.128.148 0:0:0:0:0:ffff:b25:8094
11.37.128.149 0:0:0:0:0:ffff:b25:8095
11.37.128.150 0:0:0:0:0:ffff:b25:8096
11.37.128.151 0:0:0:0:0:ffff:b25:8097
11.37.128.152 0:0:0:0:0:ffff:b25:8098
11.37.128.153 0:0:0:0:0:ffff:b25:8099
11.37.128.154 0:0:0:0:0:ffff:b25:809a
11.37.128.155 0:0:0:0:0:ffff:b25:809b
11.37.128.156 0:0:0:0:0:ffff:b25:809c
11.37.128.157 0:0:0:0:0:ffff:b25:809d
11.37.128.158 0:0:0:0:0:ffff:b25:809e
11.37.128.159 0:0:0:0:0:ffff:b25:809f
11.37.128.160 0:0:0:0:0:ffff:b25:80a0
11.37.128.161 0:0:0:0:0:ffff:b25:80a1
11.37.128.162 0:0:0:0:0:ffff:b25:80a2
11.37.128.163 0:0:0:0:0:ffff:b25:80a3
11.37.128.164 0:0:0:0:0:ffff:b25:80a4
11.37.128.165 0:0:0:0:0:ffff:b25:80a5
11.37.128.166 0:0:0:0:0:ffff:b25:80a6
11.37.128.167 0:0:0:0:0:ffff:b25:80a7
11.37.128.168 0:0:0:0:0:ffff:b25:80a8
11.37.128.169 0:0:0:0:0:ffff:b25:80a9
11.37.128.170 0:0:0:0:0:ffff:b25:80aa
11.37.128.171 0:0:0:0:0:ffff:b25:80ab
11.37.128.172 0:0:0:0:0:ffff:b25:80ac
11.37.128.173 0:0:0:0:0:ffff:b25:80ad
11.37.128.174 0:0:0:0:0:ffff:b25:80ae
11.37.128.175 0:0:0:0:0:ffff:b25:80af
11.37.128.176 0:0:0:0:0:ffff:b25:80b0
11.37.128.177 0:0:0:0:0:ffff:b25:80b1
11.37.128.178 0:0:0:0:0:ffff:b25:80b2
11.37.128.179 0:0:0:0:0:ffff:b25:80b3
11.37.128.180 0:0:0:0:0:ffff:b25:80b4


11.37.128.181 0:0:0:0:0:ffff:b25:80b5
11.37.128.182 0:0:0:0:0:ffff:b25:80b6
11.37.128.183 0:0:0:0:0:ffff:b25:80b7
11.37.128.184 0:0:0:0:0:ffff:b25:80b8
11.37.128.185 0:0:0:0:0:ffff:b25:80b9
11.37.128.186 0:0:0:0:0:ffff:b25:80ba
11.37.128.187 0:0:0:0:0:ffff:b25:80bb
11.37.128.188 0:0:0:0:0:ffff:b25:80bc
11.37.128.189 0:0:0:0:0:ffff:b25:80bd
11.37.128.190 0:0:0:0:0:ffff:b25:80be
11.37.128.191 0:0:0:0:0:ffff:b25:80bf
11.37.128.192 0:0:0:0:0:ffff:b25:80c0
11.37.128.193 0:0:0:0:0:ffff:b25:80c1
11.37.128.194 0:0:0:0:0:ffff:b25:80c2
11.37.128.195 0:0:0:0:0:ffff:b25:80c3
11.37.128.196 0:0:0:0:0:ffff:b25:80c4
11.37.128.197 0:0:0:0:0:ffff:b25:80c5
11.37.128.198 0:0:0:0:0:ffff:b25:80c6
11.37.128.199 0:0:0:0:0:ffff:b25:80c7
11.37.128.200 0:0:0:0:0:ffff:b25:80c8
11.37.128.201 0:0:0:0:0:ffff:b25:80c9
11.37.128.202 0:0:0:0:0:ffff:b25:80ca
11.37.128.203 0:0:0:0:0:ffff:b25:80cb
11.37.128.204 0:0:0:0:0:ffff:b25:80cc
11.37.128.205 0:0:0:0:0:ffff:b25:80cd
11.37.128.206 0:0:0:0:0:ffff:b25:80ce
11.37.128.207 0:0:0:0:0:ffff:b25:80cf
11.37.128.208 0:0:0:0:0:ffff:b25:80d0
11.37.128.209 0:0:0:0:0:ffff:b25:80d1
11.37.128.210 0:0:0:0:0:ffff:b25:80d2
11.37.128.211 0:0:0:0:0:ffff:b25:80d3
11.37.128.212 0:0:0:0:0:ffff:b25:80d4
11.37.128.213 0:0:0:0:0:ffff:b25:80d5
11.37.128.214 0:0:0:0:0:ffff:b25:80d6
11.37.128.215 0:0:0:0:0:ffff:b25:80d7
11.37.128.216 0:0:0:0:0:ffff:b25:80d8
11.37.128.217 0:0:0:0:0:ffff:b25:80d9
11.37.128.218 0:0:0:0:0:ffff:b25:80da
11.37.128.219 0:0:0:0:0:ffff:b25:80db
11.37.128.220 0:0:0:0:0:ffff:b25:80dc
11.37.128.221 0:0:0:0:0:ffff:b25:80dd
11.37.128.222 0:0:0:0:0:ffff:b25:80de
11.37.128.223 0:0:0:0:0:ffff:b25:80df
11.37.128.224 0:0:0:0:0:ffff:b25:80e0
11.37.128.225 0:0:0:0:0:ffff:b25:80e1
11.37.128.226 0:0:0:0:0:ffff:b25:80e2
11.37.128.227 0:0:0:0:0:ffff:b25:80e3
11.37.128.228 0:0:0:0:0:ffff:b25:80e4
11.37.128.229 0:0:0:0:0:ffff:b25:80e5
11.37.128.230 0:0:0:0:0:ffff:b25:80e6
11.37.128.231 0:0:0:0:0:ffff:b25:80e7
11.37.128.232 0:0:0:0:0:ffff:b25:80e8
11.37.128.233 0:0:0:0:0:ffff:b25:80e9
11.37.128.234 0:0:0:0:0:ffff:b25:80ea
11.37.128.235 0:0:0:0:0:ffff:b25:80eb
11.37.128.236 0:0:0:0:0:ffff:b25:80ec
11.37.128.237 0:0:0:0:0:ffff:b25:80ed
11.37.128.238 0:0:0:0:0:ffff:b25:80ee
11.37.128.239 0:0:0:0:0:ffff:b25:80ef
11.37.128.240 0:0:0:0:0:ffff:b25:80f0
11.37.128.241 0:0:0:0:0:ffff:b25:80f1
11.37.128.242 0:0:0:0:0:ffff:b25:80f2
11.37.128.243 0:0:0:0:0:ffff:b25:80f3
11.37.128.244 0:0:0:0:0:ffff:b25:80f4
11.37.128.245 0:0:0:0:0:ffff:b25:80f5
11.37.128.246 0:0:0:0:0:ffff:b25:80f6
11.37.128.247 0:0:0:0:0:ffff:b25:80f7
11.37.128.248 0:0:0:0:0:ffff:b25:80f8
11.37.128.249 0:0:0:0:0:ffff:b25:80f9
11.37.128.250 0:0:0:0:0:ffff:b25:80fa
11.37.128.251 0:0:0:0:0:ffff:b25:80fb
11.37.128.252 0:0:0:0:0:ffff:b25:80fc
11.37.128.253 0:0:0:0:0:ffff:b25:80fd
11.37.128.254 0:0:0:0:0:ffff:b25:80fe
11.37.128.255 0:0:0:0:0:ffff:b25:80ff


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.