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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 1001 to 1050 of 6735
PrefixAddressesRegistryCountryAllocated
103.223.64.0/221kAPNICCN5th Jun 2016
103.223.68.0/221kAPNICCN5th Jun 2016
103.223.72.0/221kAPNICCN5th Jun 2016
103.223.76.0/221kAPNICCN5th Jun 2016
103.223.80.0/221kAPNICCN5th Jun 2016
103.223.84.0/221kAPNICCN5th Jun 2016
103.223.88.0/221kAPNICCN5th Jun 2016
103.223.92.0/221kAPNICCN5th Jun 2016
103.223.96.0/221kAPNICCN5th Jun 2016
103.224.0.0/221kAPNICCN23rd Jun 2016
103.224.220.0/221kAPNICCN26th Jan 2014
103.224.224.0/221kAPNICCN26th Jan 2014
103.224.40.0/221kAPNICCN10th Jan 2014
103.224.44.0/221kAPNICCN10th Jan 2014
103.224.60.0/221kAPNICCN13th Jan 2014
103.225.18.0/24256APNICCN16th Jun 2023
103.226.116.0/23512APNICCN20th Jun 2023
103.226.132.0/221kAPNICCN25th Feb 2014
103.226.156.0/221kAPNICCN26th Feb 2014
103.226.16.0/221kAPNICCN18th Feb 2014
103.226.180.0/221kAPNICCN27th Feb 2014
103.226.196.0/221kAPNICCN27th Feb 2014
103.226.40.0/221kAPNICCN19th Feb 2014
103.226.60.0/221kAPNICCN20th Feb 2014
103.226.80.0/221kAPNICCN21st Feb 2014
103.227.100.0/221kAPNICCN10th Mar 2014
103.227.132.0/221kAPNICCN12th Mar 2014
103.227.196.0/221kAPNICCN14th Mar 2014
103.227.204.0/221kAPNICCN14th Mar 2014
103.227.212.0/221kAPNICCN17th Mar 2014
103.227.48.0/221kAPNICCN6th Mar 2014
103.227.72.0/221kAPNICCN7th Mar 2014
103.228.12.0/221kAPNICCN20th Mar 2014
103.228.176.0/221kAPNICCN28th Mar 2014
103.228.232.0/221kAPNICCN2nd Apr 2014
103.228.88.0/221kAPNICCN25th Mar 2014
103.229.136.0/221kAPNICCN16th Apr 2014
103.229.20.0/221kAPNICCN4th Apr 2014
103.229.228.0/221kAPNICCN23rd Apr 2014
103.229.240.0/221kAPNICCN23rd Apr 2014
103.23.164.0/221kAPNICCN30th Nov 2011
103.23.176.0/221kAPNICCN1st Dec 2011
103.23.228.0/221kAPNICCN8th Dec 2011
103.23.56.0/221kAPNICCN16th Nov 2011
103.230.0.0/221kAPNICCN24th Apr 2014
103.230.196.0/221kAPNICCN4th May 2014
103.230.204.0/221kAPNICCN4th May 2014
103.230.28.0/221kAPNICCN24th Apr 2014
103.230.44.0/221kAPNICCN24th Apr 2014
103.230.96.0/221kAPNICCN29th Apr 2014