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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 251 to 300 of 6735
PrefixAddressesRegistryCountryAllocated
103.126.16.0/221kAPNICCN26th Nov 2018
103.126.44.0/221kAPNICCN27th Nov 2018
103.13.12.0/221kAPNICCN29th Oct 2015
103.13.124.0/221kAPNICCN3rd Jul 2012
103.13.196.0/221kAPNICCN27th Jul 2012
103.130.132.0/221kAPNICCN8th Oct 2018
103.130.228.0/221kAPNICCN11th Oct 2018
103.131.168.0/221kAPNICCN22nd Oct 2018
103.131.20.0/221kAPNICCN15th Oct 2018
103.131.224.0/221kAPNICCN25th Oct 2018
103.131.228.0/221kAPNICCN25th Oct 2018
103.131.240.0/221kAPNICCN25th Oct 2018
103.131.36.0/221kAPNICCN16th Oct 2018
103.132.104.0/212kAPNICCN4th Jan 2019
103.132.112.0/212kAPNICCN4th Jan 2019
103.132.120.0/221kAPNICCN4th Jan 2019
103.132.188.0/221kAPNICCN11th Jan 2019
103.132.208.0/221kAPNICCN14th Jan 2019
103.132.48.0/221kAPNICCN2nd Jan 2019
103.132.60.0/221kAPNICCN2nd Jan 2019
103.132.64.0/204.1kAPNICCN2nd Jan 2019
103.132.80.0/221kAPNICCN2nd Jan 2019
103.133.12.0/221kAPNICCN18th Jan 2019
103.133.232.0/221kAPNICCN31st Jan 2019
103.133.40.0/221kAPNICCN21st Jan 2019
103.134.196.0/221kAPNICCN17th Feb 2019
103.134.232.0/23512APNICCN8th May 2023
103.135.124.0/221kAPNICCN26th Feb 2019
103.135.148.0/221kAPNICCN27th Feb 2019
103.135.156.0/221kAPNICCN27th Feb 2019
103.135.176.0/221kAPNICCN28th Feb 2019
103.135.184.0/221kAPNICCN28th Feb 2019
103.135.236.0/221kAPNICCN4th Mar 2019
103.135.80.0/221kAPNICCN22nd Feb 2019
103.136.128.0/221kAPNICCN8th Mar 2019
103.136.232.0/221kAPNICCN14th Mar 2019
103.137.136.0/23512APNICCN28th Mar 2019
103.137.180.0/221kAPNICCN2nd Apr 2019
103.137.236.0/221kAPNICCN5th Apr 2019
103.137.58.0/23512APNICCN22nd Mar 2019
103.137.76.0/221kAPNICCN25th Mar 2019
103.138.134.0/23512APNICCN24th Apr 2019
103.138.2.0/23512APNICCN8th Apr 2019
103.138.208.0/23512APNICCN6th May 2019
103.138.220.0/23512APNICCN7th May 2019
103.138.248.0/23512APNICCN9th May 2019
103.139.134.0/23512APNICCN24th May 2019
103.139.204.0/23512APNICCN5th Jun 2019
103.139.22.0/23512APNICCN13th May 2019
103.139.92.0/23512APNICCN15th Aug 2022