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
157.154.251.1 0:0:0:0:0:ffff:9d9a:fb01
157.154.251.2 0:0:0:0:0:ffff:9d9a:fb02
157.154.251.3 0:0:0:0:0:ffff:9d9a:fb03
157.154.251.4 0:0:0:0:0:ffff:9d9a:fb04
157.154.251.5 0:0:0:0:0:ffff:9d9a:fb05
157.154.251.6 0:0:0:0:0:ffff:9d9a:fb06
157.154.251.7 0:0:0:0:0:ffff:9d9a:fb07
157.154.251.8 0:0:0:0:0:ffff:9d9a:fb08
157.154.251.9 0:0:0:0:0:ffff:9d9a:fb09
157.154.251.10 0:0:0:0:0:ffff:9d9a:fb0a
157.154.251.11 0:0:0:0:0:ffff:9d9a:fb0b
157.154.251.12 0:0:0:0:0:ffff:9d9a:fb0c
157.154.251.13 0:0:0:0:0:ffff:9d9a:fb0d
157.154.251.14 0:0:0:0:0:ffff:9d9a:fb0e
157.154.251.15 0:0:0:0:0:ffff:9d9a:fb0f
157.154.251.16 0:0:0:0:0:ffff:9d9a:fb10
157.154.251.17 0:0:0:0:0:ffff:9d9a:fb11
157.154.251.18 0:0:0:0:0:ffff:9d9a:fb12
157.154.251.19 0:0:0:0:0:ffff:9d9a:fb13
157.154.251.20 0:0:0:0:0:ffff:9d9a:fb14
157.154.251.21 0:0:0:0:0:ffff:9d9a:fb15
157.154.251.22 0:0:0:0:0:ffff:9d9a:fb16
157.154.251.23 0:0:0:0:0:ffff:9d9a:fb17
157.154.251.24 0:0:0:0:0:ffff:9d9a:fb18
157.154.251.25 0:0:0:0:0:ffff:9d9a:fb19
157.154.251.26 0:0:0:0:0:ffff:9d9a:fb1a
157.154.251.27 0:0:0:0:0:ffff:9d9a:fb1b
157.154.251.28 0:0:0:0:0:ffff:9d9a:fb1c
157.154.251.29 0:0:0:0:0:ffff:9d9a:fb1d
157.154.251.30 0:0:0:0:0:ffff:9d9a:fb1e
157.154.251.31 0:0:0:0:0:ffff:9d9a:fb1f
157.154.251.32 0:0:0:0:0:ffff:9d9a:fb20
157.154.251.33 0:0:0:0:0:ffff:9d9a:fb21
157.154.251.34 0:0:0:0:0:ffff:9d9a:fb22
157.154.251.35 0:0:0:0:0:ffff:9d9a:fb23
157.154.251.36 0:0:0:0:0:ffff:9d9a:fb24
157.154.251.37 0:0:0:0:0:ffff:9d9a:fb25
157.154.251.38 0:0:0:0:0:ffff:9d9a:fb26
157.154.251.39 0:0:0:0:0:ffff:9d9a:fb27
157.154.251.40 0:0:0:0:0:ffff:9d9a:fb28
157.154.251.41 0:0:0:0:0:ffff:9d9a:fb29
157.154.251.42 0:0:0:0:0:ffff:9d9a:fb2a
157.154.251.43 0:0:0:0:0:ffff:9d9a:fb2b
157.154.251.44 0:0:0:0:0:ffff:9d9a:fb2c
157.154.251.45 0:0:0:0:0:ffff:9d9a:fb2d
157.154.251.46 0:0:0:0:0:ffff:9d9a:fb2e
157.154.251.47 0:0:0:0:0:ffff:9d9a:fb2f
157.154.251.48 0:0:0:0:0:ffff:9d9a:fb30
157.154.251.49 0:0:0:0:0:ffff:9d9a:fb31
157.154.251.50 0:0:0:0:0:ffff:9d9a:fb32
157.154.251.51 0:0:0:0:0:ffff:9d9a:fb33
157.154.251.52 0:0:0:0:0:ffff:9d9a:fb34
157.154.251.53 0:0:0:0:0:ffff:9d9a:fb35
157.154.251.54 0:0:0:0:0:ffff:9d9a:fb36
157.154.251.55 0:0:0:0:0:ffff:9d9a:fb37
157.154.251.56 0:0:0:0:0:ffff:9d9a:fb38
157.154.251.57 0:0:0:0:0:ffff:9d9a:fb39
157.154.251.58 0:0:0:0:0:ffff:9d9a:fb3a
157.154.251.59 0:0:0:0:0:ffff:9d9a:fb3b
157.154.251.60 0:0:0:0:0:ffff:9d9a:fb3c


157.154.251.61 0:0:0:0:0:ffff:9d9a:fb3d
157.154.251.62 0:0:0:0:0:ffff:9d9a:fb3e
157.154.251.63 0:0:0:0:0:ffff:9d9a:fb3f
157.154.251.64 0:0:0:0:0:ffff:9d9a:fb40
157.154.251.65 0:0:0:0:0:ffff:9d9a:fb41
157.154.251.66 0:0:0:0:0:ffff:9d9a:fb42
157.154.251.67 0:0:0:0:0:ffff:9d9a:fb43
157.154.251.68 0:0:0:0:0:ffff:9d9a:fb44
157.154.251.69 0:0:0:0:0:ffff:9d9a:fb45
157.154.251.70 0:0:0:0:0:ffff:9d9a:fb46
157.154.251.71 0:0:0:0:0:ffff:9d9a:fb47
157.154.251.72 0:0:0:0:0:ffff:9d9a:fb48
157.154.251.73 0:0:0:0:0:ffff:9d9a:fb49
157.154.251.74 0:0:0:0:0:ffff:9d9a:fb4a
157.154.251.75 0:0:0:0:0:ffff:9d9a:fb4b
157.154.251.76 0:0:0:0:0:ffff:9d9a:fb4c
157.154.251.77 0:0:0:0:0:ffff:9d9a:fb4d
157.154.251.78 0:0:0:0:0:ffff:9d9a:fb4e
157.154.251.79 0:0:0:0:0:ffff:9d9a:fb4f
157.154.251.80 0:0:0:0:0:ffff:9d9a:fb50
157.154.251.81 0:0:0:0:0:ffff:9d9a:fb51
157.154.251.82 0:0:0:0:0:ffff:9d9a:fb52
157.154.251.83 0:0:0:0:0:ffff:9d9a:fb53
157.154.251.84 0:0:0:0:0:ffff:9d9a:fb54
157.154.251.85 0:0:0:0:0:ffff:9d9a:fb55
157.154.251.86 0:0:0:0:0:ffff:9d9a:fb56
157.154.251.87 0:0:0:0:0:ffff:9d9a:fb57
157.154.251.88 0:0:0:0:0:ffff:9d9a:fb58
157.154.251.89 0:0:0:0:0:ffff:9d9a:fb59
157.154.251.90 0:0:0:0:0:ffff:9d9a:fb5a
157.154.251.91 0:0:0:0:0:ffff:9d9a:fb5b
157.154.251.92 0:0:0:0:0:ffff:9d9a:fb5c
157.154.251.93 0:0:0:0:0:ffff:9d9a:fb5d
157.154.251.94 0:0:0:0:0:ffff:9d9a:fb5e
157.154.251.95 0:0:0:0:0:ffff:9d9a:fb5f
157.154.251.96 0:0:0:0:0:ffff:9d9a:fb60
157.154.251.97 0:0:0:0:0:ffff:9d9a:fb61
157.154.251.98 0:0:0:0:0:ffff:9d9a:fb62
157.154.251.99 0:0:0:0:0:ffff:9d9a:fb63
157.154.251.100 0:0:0:0:0:ffff:9d9a:fb64
157.154.251.101 0:0:0:0:0:ffff:9d9a:fb65
157.154.251.102 0:0:0:0:0:ffff:9d9a:fb66
157.154.251.103 0:0:0:0:0:ffff:9d9a:fb67
157.154.251.104 0:0:0:0:0:ffff:9d9a:fb68
157.154.251.105 0:0:0:0:0:ffff:9d9a:fb69
157.154.251.106 0:0:0:0:0:ffff:9d9a:fb6a
157.154.251.107 0:0:0:0:0:ffff:9d9a:fb6b
157.154.251.108 0:0:0:0:0:ffff:9d9a:fb6c
157.154.251.109 0:0:0:0:0:ffff:9d9a:fb6d
157.154.251.110 0:0:0:0:0:ffff:9d9a:fb6e
157.154.251.111 0:0:0:0:0:ffff:9d9a:fb6f
157.154.251.112 0:0:0:0:0:ffff:9d9a:fb70
157.154.251.113 0:0:0:0:0:ffff:9d9a:fb71
157.154.251.114 0:0:0:0:0:ffff:9d9a:fb72
157.154.251.115 0:0:0:0:0:ffff:9d9a:fb73
157.154.251.116 0:0:0:0:0:ffff:9d9a:fb74
157.154.251.117 0:0:0:0:0:ffff:9d9a:fb75
157.154.251.118 0:0:0:0:0:ffff:9d9a:fb76
157.154.251.119 0:0:0:0:0:ffff:9d9a:fb77
157.154.251.120 0:0:0:0:0:ffff:9d9a:fb78


157.154.251.121 0:0:0:0:0:ffff:9d9a:fb79
157.154.251.122 0:0:0:0:0:ffff:9d9a:fb7a
157.154.251.123 0:0:0:0:0:ffff:9d9a:fb7b
157.154.251.124 0:0:0:0:0:ffff:9d9a:fb7c
157.154.251.125 0:0:0:0:0:ffff:9d9a:fb7d
157.154.251.126 0:0:0:0:0:ffff:9d9a:fb7e
157.154.251.127 0:0:0:0:0:ffff:9d9a:fb7f
157.154.251.128 0:0:0:0:0:ffff:9d9a:fb80
157.154.251.129 0:0:0:0:0:ffff:9d9a:fb81
157.154.251.130 0:0:0:0:0:ffff:9d9a:fb82
157.154.251.131 0:0:0:0:0:ffff:9d9a:fb83
157.154.251.132 0:0:0:0:0:ffff:9d9a:fb84
157.154.251.133 0:0:0:0:0:ffff:9d9a:fb85
157.154.251.134 0:0:0:0:0:ffff:9d9a:fb86
157.154.251.135 0:0:0:0:0:ffff:9d9a:fb87
157.154.251.136 0:0:0:0:0:ffff:9d9a:fb88
157.154.251.137 0:0:0:0:0:ffff:9d9a:fb89
157.154.251.138 0:0:0:0:0:ffff:9d9a:fb8a
157.154.251.139 0:0:0:0:0:ffff:9d9a:fb8b
157.154.251.140 0:0:0:0:0:ffff:9d9a:fb8c
157.154.251.141 0:0:0:0:0:ffff:9d9a:fb8d
157.154.251.142 0:0:0:0:0:ffff:9d9a:fb8e
157.154.251.143 0:0:0:0:0:ffff:9d9a:fb8f
157.154.251.144 0:0:0:0:0:ffff:9d9a:fb90
157.154.251.145 0:0:0:0:0:ffff:9d9a:fb91
157.154.251.146 0:0:0:0:0:ffff:9d9a:fb92
157.154.251.147 0:0:0:0:0:ffff:9d9a:fb93
157.154.251.148 0:0:0:0:0:ffff:9d9a:fb94
157.154.251.149 0:0:0:0:0:ffff:9d9a:fb95
157.154.251.150 0:0:0:0:0:ffff:9d9a:fb96
157.154.251.151 0:0:0:0:0:ffff:9d9a:fb97
157.154.251.152 0:0:0:0:0:ffff:9d9a:fb98
157.154.251.153 0:0:0:0:0:ffff:9d9a:fb99
157.154.251.154 0:0:0:0:0:ffff:9d9a:fb9a
157.154.251.155 0:0:0:0:0:ffff:9d9a:fb9b
157.154.251.156 0:0:0:0:0:ffff:9d9a:fb9c
157.154.251.157 0:0:0:0:0:ffff:9d9a:fb9d
157.154.251.158 0:0:0:0:0:ffff:9d9a:fb9e
157.154.251.159 0:0:0:0:0:ffff:9d9a:fb9f
157.154.251.160 0:0:0:0:0:ffff:9d9a:fba0
157.154.251.161 0:0:0:0:0:ffff:9d9a:fba1
157.154.251.162 0:0:0:0:0:ffff:9d9a:fba2
157.154.251.163 0:0:0:0:0:ffff:9d9a:fba3
157.154.251.164 0:0:0:0:0:ffff:9d9a:fba4
157.154.251.165 0:0:0:0:0:ffff:9d9a:fba5
157.154.251.166 0:0:0:0:0:ffff:9d9a:fba6
157.154.251.167 0:0:0:0:0:ffff:9d9a:fba7
157.154.251.168 0:0:0:0:0:ffff:9d9a:fba8
157.154.251.169 0:0:0:0:0:ffff:9d9a:fba9
157.154.251.170 0:0:0:0:0:ffff:9d9a:fbaa
157.154.251.171 0:0:0:0:0:ffff:9d9a:fbab
157.154.251.172 0:0:0:0:0:ffff:9d9a:fbac
157.154.251.173 0:0:0:0:0:ffff:9d9a:fbad
157.154.251.174 0:0:0:0:0:ffff:9d9a:fbae
157.154.251.175 0:0:0:0:0:ffff:9d9a:fbaf
157.154.251.176 0:0:0:0:0:ffff:9d9a:fbb0
157.154.251.177 0:0:0:0:0:ffff:9d9a:fbb1
157.154.251.178 0:0:0:0:0:ffff:9d9a:fbb2
157.154.251.179 0:0:0:0:0:ffff:9d9a:fbb3
157.154.251.180 0:0:0:0:0:ffff:9d9a:fbb4


157.154.251.181 0:0:0:0:0:ffff:9d9a:fbb5
157.154.251.182 0:0:0:0:0:ffff:9d9a:fbb6
157.154.251.183 0:0:0:0:0:ffff:9d9a:fbb7
157.154.251.184 0:0:0:0:0:ffff:9d9a:fbb8
157.154.251.185 0:0:0:0:0:ffff:9d9a:fbb9
157.154.251.186 0:0:0:0:0:ffff:9d9a:fbba
157.154.251.187 0:0:0:0:0:ffff:9d9a:fbbb
157.154.251.188 0:0:0:0:0:ffff:9d9a:fbbc
157.154.251.189 0:0:0:0:0:ffff:9d9a:fbbd
157.154.251.190 0:0:0:0:0:ffff:9d9a:fbbe
157.154.251.191 0:0:0:0:0:ffff:9d9a:fbbf
157.154.251.192 0:0:0:0:0:ffff:9d9a:fbc0
157.154.251.193 0:0:0:0:0:ffff:9d9a:fbc1
157.154.251.194 0:0:0:0:0:ffff:9d9a:fbc2
157.154.251.195 0:0:0:0:0:ffff:9d9a:fbc3
157.154.251.196 0:0:0:0:0:ffff:9d9a:fbc4
157.154.251.197 0:0:0:0:0:ffff:9d9a:fbc5
157.154.251.198 0:0:0:0:0:ffff:9d9a:fbc6
157.154.251.199 0:0:0:0:0:ffff:9d9a:fbc7
157.154.251.200 0:0:0:0:0:ffff:9d9a:fbc8
157.154.251.201 0:0:0:0:0:ffff:9d9a:fbc9
157.154.251.202 0:0:0:0:0:ffff:9d9a:fbca
157.154.251.203 0:0:0:0:0:ffff:9d9a:fbcb
157.154.251.204 0:0:0:0:0:ffff:9d9a:fbcc
157.154.251.205 0:0:0:0:0:ffff:9d9a:fbcd
157.154.251.206 0:0:0:0:0:ffff:9d9a:fbce
157.154.251.207 0:0:0:0:0:ffff:9d9a:fbcf
157.154.251.208 0:0:0:0:0:ffff:9d9a:fbd0
157.154.251.209 0:0:0:0:0:ffff:9d9a:fbd1
157.154.251.210 0:0:0:0:0:ffff:9d9a:fbd2
157.154.251.211 0:0:0:0:0:ffff:9d9a:fbd3
157.154.251.212 0:0:0:0:0:ffff:9d9a:fbd4
157.154.251.213 0:0:0:0:0:ffff:9d9a:fbd5
157.154.251.214 0:0:0:0:0:ffff:9d9a:fbd6
157.154.251.215 0:0:0:0:0:ffff:9d9a:fbd7
157.154.251.216 0:0:0:0:0:ffff:9d9a:fbd8
157.154.251.217 0:0:0:0:0:ffff:9d9a:fbd9
157.154.251.218 0:0:0:0:0:ffff:9d9a:fbda
157.154.251.219 0:0:0:0:0:ffff:9d9a:fbdb
157.154.251.220 0:0:0:0:0:ffff:9d9a:fbdc
157.154.251.221 0:0:0:0:0:ffff:9d9a:fbdd
157.154.251.222 0:0:0:0:0:ffff:9d9a:fbde
157.154.251.223 0:0:0:0:0:ffff:9d9a:fbdf
157.154.251.224 0:0:0:0:0:ffff:9d9a:fbe0
157.154.251.225 0:0:0:0:0:ffff:9d9a:fbe1
157.154.251.226 0:0:0:0:0:ffff:9d9a:fbe2
157.154.251.227 0:0:0:0:0:ffff:9d9a:fbe3
157.154.251.228 0:0:0:0:0:ffff:9d9a:fbe4
157.154.251.229 0:0:0:0:0:ffff:9d9a:fbe5
157.154.251.230 0:0:0:0:0:ffff:9d9a:fbe6
157.154.251.231 0:0:0:0:0:ffff:9d9a:fbe7
157.154.251.232 0:0:0:0:0:ffff:9d9a:fbe8
157.154.251.233 0:0:0:0:0:ffff:9d9a:fbe9
157.154.251.234 0:0:0:0:0:ffff:9d9a:fbea
157.154.251.235 0:0:0:0:0:ffff:9d9a:fbeb
157.154.251.236 0:0:0:0:0:ffff:9d9a:fbec
157.154.251.237 0:0:0:0:0:ffff:9d9a:fbed
157.154.251.238 0:0:0:0:0:ffff:9d9a:fbee
157.154.251.239 0:0:0:0:0:ffff:9d9a:fbef
157.154.251.240 0:0:0:0:0:ffff:9d9a:fbf0
157.154.251.241 0:0:0:0:0:ffff:9d9a:fbf1
157.154.251.242 0:0:0:0:0:ffff:9d9a:fbf2
157.154.251.243 0:0:0:0:0:ffff:9d9a:fbf3
157.154.251.244 0:0:0:0:0:ffff:9d9a:fbf4
157.154.251.245 0:0:0:0:0:ffff:9d9a:fbf5
157.154.251.246 0:0:0:0:0:ffff:9d9a:fbf6
157.154.251.247 0:0:0:0:0:ffff:9d9a:fbf7
157.154.251.248 0:0:0:0:0:ffff:9d9a:fbf8
157.154.251.249 0:0:0:0:0:ffff:9d9a:fbf9
157.154.251.250 0:0:0:0:0:ffff:9d9a:fbfa
157.154.251.251 0:0:0:0:0:ffff:9d9a:fbfb
157.154.251.252 0:0:0:0:0:ffff:9d9a:fbfc
157.154.251.253 0:0:0:0:0:ffff:9d9a:fbfd
157.154.251.254 0:0:0:0:0:ffff:9d9a:fbfe
157.154.251.255 0:0:0:0:0:ffff:9d9a:fbff


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.