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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 2051 to 2100 of 6735
PrefixAddressesRegistryCountryAllocated
103.86.212.0/221kAPNICCN2nd Mar 2017
103.86.216.0/221kAPNICCN2nd Mar 2017
103.86.220.0/221kAPNICCN2nd Mar 2017
103.86.224.0/221kAPNICCN2nd Mar 2017
103.86.228.0/221kAPNICCN2nd Mar 2017
103.86.232.0/221kAPNICCN2nd Mar 2017
103.86.236.0/221kAPNICCN2nd Mar 2017
103.86.240.0/221kAPNICCN2nd Mar 2017
103.86.244.0/221kAPNICCN2nd Mar 2017
103.86.248.0/221kAPNICCN2nd Mar 2017
103.86.252.0/221kAPNICCN2nd Mar 2017
103.86.28.0/221kAPNICCN16th Feb 2017
103.86.32.0/221kAPNICCN17th Feb 2017
103.86.60.0/221kAPNICCN20th Feb 2017
103.87.0.0/221kAPNICCN2nd Mar 2017
103.87.132.0/221kAPNICCN8th Mar 2017
103.87.20.0/221kAPNICCN3rd Mar 2017
103.87.224.0/221kAPNICCN13th Mar 2017
103.87.32.0/221kAPNICCN3rd Mar 2017
103.87.4.0/221kAPNICCN2nd Mar 2017
103.87.96.0/221kAPNICCN7th Mar 2017
103.88.12.0/221kAPNICCN16th Mar 2017
103.88.16.0/221kAPNICCN16th Mar 2017
103.88.164.0/221kAPNICCN22nd Mar 2017
103.88.20.0/221kAPNICCN16th Mar 2017
103.88.212.0/221kAPNICCN23rd Mar 2017
103.88.4.0/221kAPNICCN16th Mar 2017
103.88.60.0/221kAPNICCN20th Mar 2017
103.88.72.0/221kAPNICCN20th Mar 2017
103.88.8.0/221kAPNICCN16th Mar 2017
103.89.100.0/221kAPNICCN30th Mar 2017
103.89.104.0/221kAPNICCN30th Mar 2017
103.89.108.0/221kAPNICCN30th Mar 2017
103.89.112.0/221kAPNICCN30th Mar 2017
103.89.116.0/221kAPNICCN30th Mar 2017
103.89.148.0/221kAPNICCN1st Apr 2017
103.89.172.0/221kAPNICCN5th Apr 2017
103.89.28.0/221kAPNICCN28th Mar 2017
103.89.96.0/221kAPNICCN30th Mar 2017
103.9.108.0/221kAPNICCN29th Oct 2015
103.9.152.0/221kAPNICCN17th May 2012
103.9.24.0/221kAPNICCN29th Oct 2015
103.9.248.0/221kAPNICCN20th Jun 2012
103.90.100.0/221kAPNICCN13th Apr 2017
103.90.104.0/221kAPNICCN13th Apr 2017
103.90.108.0/221kAPNICCN13th Apr 2017
103.90.112.0/221kAPNICCN13th Apr 2017
103.90.116.0/221kAPNICCN13th Apr 2017
103.90.120.0/221kAPNICCN13th Apr 2017
103.90.124.0/221kAPNICCN13th Apr 2017