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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through RIPE NCC, largest first.

Unannounced blocks registered through RIPE NCC

24,875 blocks match, ordered by prefix.

Allocated but unannounced blocks, 8901 to 8950 of 24875
PrefixAddressesRegistryCountryAllocated
2001:678:548::/4865.5k × /64RIPE NCCRU20th Oct 2017
2001:678:550::/4865.5k × /64RIPE NCCGB23rd Oct 2017
2001:678:570::/4865.5k × /64RIPE NCCPL10th Nov 2017
2001:678:574::/4865.5k × /64RIPE NCCPL14th Nov 2017
2001:678:58c::/4865.5k × /64RIPE NCCIT10th Aug 2026
2001:678:590::/4865.5k × /64RIPE NCCPL5th Dec 2017
2001:678:59c::/4865.5k × /64RIPE NCCDE6th Dec 2017
2001:678:5a0::/4865.5k × /64RIPE NCCDE28th Oct 2019
2001:678:5a4::/4865.5k × /64RIPE NCCCZ8th Dec 2017
2001:678:5b8::/4865.5k × /64RIPE NCCSI16th Jan 2018
2001:678:5bc::/4865.5k × /64RIPE NCCPL16th Jan 2018
2001:678:5c8::/4865.5k × /64RIPE NCCRU18th Jan 2018
2001:678:5e8::/4865.5k × /64RIPE NCCAT12th Sept 2025
2001:678:5f0::/4865.5k × /64RIPE NCCUA21st Jan 2020
2001:678:5f4::/4865.5k × /64RIPE NCCPS6th Feb 2018
2001:678:5fc::/4865.5k × /64RIPE NCCKG8th Feb 2018
2001:678:608::/4865.5k × /64RIPE NCCPL2nd Mar 2018
2001:678:610::/4865.5k × /64RIPE NCCSE6th Mar 2018
2001:678:624::/4865.5k × /64RIPE NCCRU18th Sept 2025
2001:678:628::/4865.5k × /64RIPE NCCPL20th Mar 2018
2001:678:62c::/4865.5k × /64RIPE NCCRU21st Mar 2018
2001:678:630::/4865.5k × /64RIPE NCCRU23rd Mar 2018
2001:678:644::/4865.5k × /64RIPE NCCSE10th Apr 2018
2001:678:64c::/4865.5k × /64RIPE NCCCH18th Jun 2024
2001:678:650::/4865.5k × /64RIPE NCCTJ12th Apr 2018
2001:678:654::/4865.5k × /64RIPE NCCDE12th Apr 2018
2001:678:658::/4865.5k × /64RIPE NCCDE16th Jul 2024
2001:678:65c::/4865.5k × /64RIPE NCCRU16th Apr 2018
2001:678:66c::/4865.5k × /64RIPE NCCDE23rd Apr 2018
2001:678:670::/4865.5k × /64RIPE NCCRU23rd Apr 2018
2001:678:674::/4865.5k × /64RIPE NCCRU23rd Apr 2018
2001:678:678::/4865.5k × /64RIPE NCCCH23rd Apr 2018
2001:678:67c::/4865.5k × /64RIPE NCCDK24th Apr 2018
2001:678:684::/4865.5k × /64RIPE NCCDE25th Apr 2018
2001:678:688::/4865.5k × /64RIPE NCCNL25th Apr 2018
2001:678:694::/4865.5k × /64RIPE NCCSE1st May 2018
2001:678:698::/4865.5k × /64RIPE NCCNL4th May 2018
2001:678:6b4::/4865.5k × /64RIPE NCCSI14th May 2018
2001:678:6b8::/4865.5k × /64RIPE NCCGB14th May 2018
2001:678:6c8::/4865.5k × /64RIPE NCCDE24th May 2018
2001:678:6cc::/4865.5k × /64RIPE NCCDE28th Sept 2026
2001:678:6dc::/4865.5k × /64RIPE NCCDE30th Jan 2026
2001:678:700::/4865.5k × /64RIPE NCCRU31st May 2018
2001:678:708::/4865.5k × /64RIPE NCCUA1st Jun 2018
2001:678:70::/4865.5k × /64RIPE NCCSK12th Apr 2012
2001:678:710::/4865.5k × /64RIPE NCCAT7th Apr 2025
2001:678:714::/4865.5k × /64RIPE NCCGB16th Aug 2022
2001:678:730::/4865.5k × /64RIPE NCCBE26th Aug 2019
2001:678:734::/4865.5k × /64RIPE NCCSE18th May 2020
2001:678:740::/4865.5k × /64RIPE NCCSI14th Jun 2018