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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

24,896 blocks match, ordered by prefix.

Allocated but unannounced blocks, 21601 to 21650 of 24896
PrefixAddressesRegistryCountryAllocated
37.99.208.0/212kRIPE NCCIE8th Feb 2012
40.17.0.0/1665.5kRIPE NCCGB23rd Apr 1991
40.21.0.0/1665.5kRIPE NCCGB23rd Apr 1991
40.25.0.0/1665.5kRIPE NCCGB23rd Apr 1991
43.226.224.0/221kRIPE NCCAE28th Mar 2019
45.10.116.0/221kRIPE NCCNL25th Apr 2019
45.10.216.0/221kRIPE NCCRU25th Apr 2019
45.10.8.0/221kRIPE NCCFR23rd Apr 2019
45.11.120.0/221kRIPE NCCPL26th Apr 2019
45.11.144.0/221kRIPE NCCGG29th Apr 2019
45.11.244.0/221kRIPE NCCUS30th Apr 2019
45.11.28.0/221kRIPE NCCNL26th Apr 2019
45.11.94.0/24256RIPE NCCRU26th Apr 2019
45.116.184.0/221kRIPE NCCNL8th May 2015
45.12.108.0/221kRIPE NCCCY1st May 2019
45.12.120.0/221kRIPE NCCCH1st May 2019
45.12.128.0/221kRIPE NCCCY1st May 2019
45.12.132.0/221kRIPE NCCCY1st May 2019
45.12.136.0/221kRIPE NCCCY1st May 2019
45.12.144.0/221kRIPE NCCCY1st May 2019
45.12.152.0/221kRIPE NCCES1st May 2019
45.12.160.0/221kRIPE NCCAT1st May 2019
45.12.188.0/221kRIPE NCCGB2nd May 2019
45.12.232.0/221kRIPE NCCAT2nd May 2019
45.12.46.0/23512RIPE NCCAT30th Apr 2019
45.12.61.0/24256RIPE NCCSC30th Apr 2019
45.12.92.0/221kRIPE NCCDE1st May 2019
45.120.220.0/221kRIPE NCCES23rd Jun 2015
45.127.28.0/221kRIPE NCCAU14th Sept 2015
45.128.164.0/221kRIPE NCCAT12th Jul 2019
45.128.192.0/221kRIPE NCCSE12th Jul 2019
45.128.224.0/221kRIPE NCCDE12th Jul 2019
45.128.252.0/221kRIPE NCCDE12th Jul 2019
45.128.28.0/221kRIPE NCCAT11th Jul 2019
45.128.48.0/221kRIPE NCCCY11th Jul 2019
45.128.52.0/221kRIPE NCCCY11th Jul 2019
45.128.72.0/221kRIPE NCCCY11th Jul 2019
45.129.188.0/221kRIPE NCCSE16th Jul 2019
45.129.28.0/221kRIPE NCCAT15th Jul 2019
45.129.75.0/24256RIPE NCCNO13th Oct 2025
45.129.85.0/24256RIPE NCCBG15th Jul 2019
45.129.93.0/24256RIPE NCCDE15th Jul 2019
45.13.138.0/23512RIPE NCCSK3rd May 2019
45.13.170.0/24256RIPE NCCES6th May 2019
45.13.204.0/221kRIPE NCCCH7th May 2019
45.13.216.0/221kRIPE NCCDE7th May 2019
45.13.244.0/221kRIPE NCCAT7th May 2019
45.13.25.0/24256RIPE NCCRO7th Mar 2023
45.13.26.0/24256RIPE NCCRS7th Mar 2023
45.130.145.0/24256RIPE NCCRU17th Jul 2019