subnet.im

Allocated but unannounced space

Every block here was allocated or assigned by a regional internet registry, and none of them appeared in any routing table we collected at our last snapshot — neither as a route of their own, nor covered by a larger announcement, nor carved up into more specifics.

“Unannounced” does not mean “unused”

Plenty of allocated space is deliberately kept off the public internet: private interconnects, lab and lawful-intercept ranges, networks reachable only inside one operator, and space held in reserve. Some of it is announced somewhere our collectors cannot see, which is a limit of our vantage points rather than a fact about the block.

It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today. Nothing on this page means a block is unallocated, available, or free to announce.

Browse by registry

Browse by country

Countries with the most unannounced blocks, largest first.

Unannounced blocks in China

6,735 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1101 to 1150 of 6735
PrefixAddressesRegistryCountryAllocated
103.238.172.0/221kAPNICCN25th Jul 2014
103.238.176.0/221kAPNICCN25th Jul 2014
103.238.180.0/221kAPNICCN25th Jul 2014
103.238.196.0/221kAPNICCN25th Jul 2014
103.238.20.0/221kAPNICCN20th Jul 2014
103.238.24.0/221kAPNICCN20th Jul 2014
103.238.252.0/221kAPNICCN29th Jul 2014
103.238.28.0/221kAPNICCN20th Jul 2014
103.238.32.0/221kAPNICCN20th Jul 2014
103.238.36.0/221kAPNICCN20th Jul 2014
103.238.40.0/221kAPNICCN20th Jul 2014
103.238.56.0/221kAPNICCN20th Jul 2014
103.238.88.0/221kAPNICCN22nd Jul 2014
103.238.92.0/221kAPNICCN22nd Jul 2014
103.239.156.0/221kAPNICCN6th Aug 2014
103.239.180.0/221kAPNICCN7th Aug 2014
103.239.196.0/221kAPNICCN7th Aug 2014
103.239.208.0/221kAPNICCN7th Aug 2014
103.239.44.0/221kAPNICCN31st Jul 2014
103.24.128.0/221kAPNICCN16th Apr 2013
103.24.144.0/221kAPNICCN17th Apr 2013
103.24.184.0/221kAPNICCN19th Apr 2013
103.24.220.0/221kAPNICCN23rd Apr 2013
103.24.24.0/221kAPNICCN23rd Jun 2016
103.24.252.0/221kAPNICCN24th Apr 2013
103.240.172.0/221kAPNICCN16th Aug 2013
103.240.188.0/221kAPNICCN29th Jun 2016
103.240.202.0/23512APNICCN24th Jul 2023
103.240.42.0/23512APNICCN21st Jul 2023
103.240.72.0/221kAPNICCN12th Aug 2013
103.241.12.0/221kAPNICCN23rd Aug 2013
103.241.160.0/221kAPNICCN3rd Sept 2013
103.241.172.0/23512APNICCN24th Jul 2023
103.241.184.0/221kAPNICCN4th Sept 2013
103.241.188.0/221kAPNICCN4th Sept 2013
103.241.96.0/221kAPNICCN29th Aug 2013
103.242.160.0/221kAPNICCN22nd Sept 2013
103.242.176.0/221kAPNICCN23rd Sept 2013
103.242.200.0/221kAPNICCN24th Sept 2013
103.242.220.0/221kAPNICCN26th Sept 2013
103.242.240.0/221kAPNICCN29th Sept 2013
103.242.64.0/221kAPNICCN12th Sept 2013
103.244.16.0/221kAPNICCN6th Dec 2012
103.244.164.0/221kAPNICCN19th Dec 2012
103.244.252.0/221kAPNICCN28th Dec 2012
103.244.26.0/23512APNICCN28th Jul 2023
103.244.60.0/221kAPNICCN11th Dec 2012
103.244.68.0/221kAPNICCN11th Dec 2012
103.244.72.0/221kAPNICCN11th Dec 2012
103.244.76.0/221kAPNICCN12th Dec 2012