227.0.0.0/8 CIDR Lookup — 16.78M IPs…

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Multicast · RFC 5771

Class D multicast address range — used for one-to-many delivery protocols like mDNS, OSPF, SSDP, and streaming media. Source addresses are always unicast; these appear only as destinations.

This range is reserved by IANA — it is not allocated to an organization, ISP, or regional internet registry. Addresses here appear on every private/internal network that follows the standard, so lookups will not identify a specific owner. 227.0.0.0/8 is a sub-block of 224.0.0.0/4, the defining reserved range.

First 256 of 16,777,216 IP addresses in 227.0.0.0/8

227.0.0.0 227.0.0.1 227.0.0.2 227.0.0.3 227.0.0.4 227.0.0.5 227.0.0.6 227.0.0.7 227.0.0.8 227.0.0.9 227.0.0.10 227.0.0.11 227.0.0.12 227.0.0.13 227.0.0.14 227.0.0.15 227.0.0.16 227.0.0.17 227.0.0.18 227.0.0.19 227.0.0.20 227.0.0.21 227.0.0.22 227.0.0.23 227.0.0.24 227.0.0.25 227.0.0.26 227.0.0.27 227.0.0.28 227.0.0.29 227.0.0.30 227.0.0.31 227.0.0.32 227.0.0.33 227.0.0.34 227.0.0.35 227.0.0.36 227.0.0.37 227.0.0.38 227.0.0.39 227.0.0.40 227.0.0.41 227.0.0.42 227.0.0.43 227.0.0.44 227.0.0.45 227.0.0.46 227.0.0.47 227.0.0.48 227.0.0.49 227.0.0.50 227.0.0.51 227.0.0.52 227.0.0.53 227.0.0.54 227.0.0.55 227.0.0.56 227.0.0.57 227.0.0.58 227.0.0.59 227.0.0.60 227.0.0.61 227.0.0.62 227.0.0.63 227.0.0.64 227.0.0.65 227.0.0.66 227.0.0.67 227.0.0.68 227.0.0.69 227.0.0.70 227.0.0.71 227.0.0.72 227.0.0.73 227.0.0.74 227.0.0.75 227.0.0.76 227.0.0.77 227.0.0.78 227.0.0.79 227.0.0.80 227.0.0.81 227.0.0.82 227.0.0.83 227.0.0.84 227.0.0.85 227.0.0.86 227.0.0.87 227.0.0.88 227.0.0.89 227.0.0.90 227.0.0.91 227.0.0.92 227.0.0.93 227.0.0.94 227.0.0.95 227.0.0.96 227.0.0.97 227.0.0.98 227.0.0.99 227.0.0.100 227.0.0.101 227.0.0.102 227.0.0.103 227.0.0.104 227.0.0.105 227.0.0.106 227.0.0.107 227.0.0.108 227.0.0.109 227.0.0.110 227.0.0.111 227.0.0.112 227.0.0.113 227.0.0.114 227.0.0.115 227.0.0.116 227.0.0.117 227.0.0.118 227.0.0.119 227.0.0.120 227.0.0.121 227.0.0.122 227.0.0.123 227.0.0.124 227.0.0.125 227.0.0.126 227.0.0.127 227.0.0.128 227.0.0.129 227.0.0.130 227.0.0.131 227.0.0.132 227.0.0.133 227.0.0.134 227.0.0.135 227.0.0.136 227.0.0.137 227.0.0.138 227.0.0.139 227.0.0.140 227.0.0.141 227.0.0.142 227.0.0.143 227.0.0.144 227.0.0.145 227.0.0.146 227.0.0.147 227.0.0.148 227.0.0.149 227.0.0.150 227.0.0.151 227.0.0.152 227.0.0.153 227.0.0.154 227.0.0.155 227.0.0.156 227.0.0.157 227.0.0.158 227.0.0.159 227.0.0.160 227.0.0.161 227.0.0.162 227.0.0.163 227.0.0.164 227.0.0.165 227.0.0.166 227.0.0.167 227.0.0.168 227.0.0.169 227.0.0.170 227.0.0.171 227.0.0.172 227.0.0.173 227.0.0.174 227.0.0.175 227.0.0.176 227.0.0.177 227.0.0.178 227.0.0.179 227.0.0.180 227.0.0.181 227.0.0.182 227.0.0.183 227.0.0.184 227.0.0.185 227.0.0.186 227.0.0.187 227.0.0.188 227.0.0.189 227.0.0.190 227.0.0.191 227.0.0.192 227.0.0.193 227.0.0.194 227.0.0.195 227.0.0.196 227.0.0.197 227.0.0.198 227.0.0.199 227.0.0.200 227.0.0.201 227.0.0.202 227.0.0.203 227.0.0.204 227.0.0.205 227.0.0.206 227.0.0.207 227.0.0.208 227.0.0.209 227.0.0.210 227.0.0.211 227.0.0.212 227.0.0.213 227.0.0.214 227.0.0.215 227.0.0.216 227.0.0.217 227.0.0.218 227.0.0.219 227.0.0.220 227.0.0.221 227.0.0.222 227.0.0.223 227.0.0.224 227.0.0.225 227.0.0.226 227.0.0.227 227.0.0.228 227.0.0.229 227.0.0.230 227.0.0.231 227.0.0.232 227.0.0.233 227.0.0.234 227.0.0.235 227.0.0.236 227.0.0.237 227.0.0.238 227.0.0.239 227.0.0.240 227.0.0.241 227.0.0.242 227.0.0.243 227.0.0.244 227.0.0.245 227.0.0.246 227.0.0.247 227.0.0.248 227.0.0.249 227.0.0.250 227.0.0.251 227.0.0.252 227.0.0.253 227.0.0.254 227.0.0.255 + 16.78M more (range too large to list inline)

Frequently Asked Questions

What is 227.0.0.0/8?

227.0.0.0/8 falls inside 224.0.0.0/4 — a Multicast range reserved by RFC 5771. Class D multicast address range — used for one-to-many delivery protocols like mDNS, OSPF, SSDP, and streaming media. Source addresses are always unicast; these appear only as destinations.

Is 227.0.0.0/8 routable on the public internet?

No. 227.0.0.0/8 is part of IANA-reserved special-use space (224.0.0.0/4, RFC 5771). Packets with these addresses are either filtered by backbone routers or handled as local/special traffic — they never reach the public internet.

Who owns 227.0.0.0/8?

227.0.0.0/8 is not allocated to any organization or ISP. It is part of the Multicast block reserved by IANA under RFC 5771 for every network to use privately.