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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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.

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Countries with unannounced space registered through RIPE NCC, largest first.

Unannounced blocks registered through RIPE NCC

25,269 blocks match, ordered by prefix.

Allocated but unannounced blocks, 21851 to 21900 of 25269
PrefixAddressesRegistryCountryAllocated
31.210.58.0/23512RIPE NCCTR4th May 2011
31.211.176.0/212kRIPE NCCDE9th May 2011
31.214.132.0/23512RIPE NCCIR6th May 2011
31.214.149.0/24256RIPE NCCDE6th May 2011
31.214.155.0/24256RIPE NCCES6th May 2011
31.214.200.0/23512RIPE NCCIR6th May 2011
31.220.12.0/23512RIPE NCCDE10th May 2011
31.220.128.0/212kRIPE NCCRO11th May 2011
31.220.147.0/24256RIPE NCCDE11th May 2011
31.220.244.0/24256RIPE NCCGB12th May 2011
31.220.36.0/221kRIPE NCCDE10th May 2011
31.220.8.0/221kRIPE NCCDE10th May 2011
31.222.230.0/24256RIPE NCCCA6th Oct 2021
31.222.231.0/24256RIPE NCCDE6th Oct 2021
31.222.238.0/24256RIPE NCCMD7th Oct 2021
31.222.251.0/24256RIPE NCCSC7th Oct 2021
31.222.40.0/212kRIPE NCCAL13th May 2011
31.223.176.0/212kRIPE NCCPS16th May 2011
31.24.160.0/212kRIPE NCCNL24th Feb 2011
31.24.254.0/24256RIPE NCCTR29th Jun 2022
31.24.84.0/24256RIPE NCCDE11th Jan 2022
31.25.192.0/221kRIPE NCCUS8th Mar 2011
31.25.232.0/23512RIPE NCCIR9th Mar 2011
31.25.80.0/212kRIPE NCCIE3rd Mar 2011
31.28.66.0/24256RIPE NCCGB23rd Feb 2011
31.28.74.0/24256RIPE NCCGB23rd Feb 2011
31.3.148.0/23512RIPE NCCDE3rd Aug 2011
31.3.220.0/24256RIPE NCCES8th Apr 2011
31.31.32.0/212kRIPE NCCNL17th Mar 2011
31.31.92.0/221kRIPE NCCDE18th Mar 2011
31.40.224.0/221kRIPE NCCRO9th Nov 2018
31.41.104.0/212kRIPE NCCUA28th Mar 2011
31.41.128.0/212kRIPE NCCUA29th Mar 2011
31.41.242.0/24256RIPE NCCRU6th Apr 2011
31.41.244.0/24256RIPE NCCRU6th Apr 2011
31.41.8.0/221kRIPE NCCRU11th Mar 2011
31.43.162.0/24256RIPE NCCSI1st Mar 2011
31.43.164.0/23512RIPE NCCUA1st Mar 2011
31.43.166.0/23512RIPE NCCFR1st Mar 2011
31.43.176.0/23512RIPE NCCPL1st Mar 2011
31.43.185.0/24256RIPE NCCUA1st Mar 2011
31.43.188.0/23512RIPE NCCUA1st Mar 2011
31.43.190.0/24256RIPE NCCUA1st Mar 2011
31.47.208.0/212kRIPE NCCRO22nd Mar 2011
31.7.168.0/212kRIPE NCCMK14th Apr 2011
31.7.224.0/204.1kRIPE NCCRU14th Apr 2011
31.71.0.0/1665.5kRIPE NCCGB25th Nov 2010
31.72.0.0/14262kRIPE NCCGB25th Nov 2010
31.78.0.0/15131kRIPE NCCGB25th Nov 2010
31.99.153.0/24256RIPE NCCGB25th Nov 2010