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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 36701 to 36750 of 85346
PrefixAddressesRegistryCountryAllocated
2001:67c:534::/4865.5k × /64RIPE NCCCH16th Apr 2014
2001:67c:544::/4865.5k × /64RIPE NCCUA17th Apr 2014
2001:67c:54c::/4865.5k × /64RIPE NCCFR17th Apr 2014
2001:67c:550::/4865.5k × /64RIPE NCCNO22nd Apr 2014
2001:67c:55c::/4865.5k × /64RIPE NCCNO23rd Apr 2014
2001:67c:574::/4865.5k × /64RIPE NCCNL2nd May 2014
2001:67c:578::/4865.5k × /64RIPE NCCSE5th May 2014
2001:67c:580::/4865.5k × /64RIPE NCCGB6th May 2014
2001:67c:584::/4865.5k × /64RIPE NCCPL26th Jul 2016
2001:67c:588::/4865.5k × /64RIPE NCCRO9th May 2014
2001:67c:594::/4865.5k × /64RIPE NCCDE13th May 2014
2001:67c:5a8::/4865.5k × /64RIPE NCCNL13th May 2014
2001:67c:5ac::/4865.5k × /64RIPE NCCRU23rd Nov 2023
2001:67c:5b0::/4865.5k × /64RIPE NCCCH7th Jul 2026
2001:67c:5b8::/4865.5k × /64RIPE NCCSE19th May 2014
2001:67c:5d0::/4865.5k × /64RIPE NCCLV22nd May 2014
2001:67c:5d8::/4865.5k × /64RIPE NCCCH23rd May 2014
2001:67c:5e0::/4865.5k × /64RIPE NCCTR23rd May 2014
2001:67c:5e4::/4865.5k × /64RIPE NCCDE23rd May 2014
2001:67c:5f0::/4865.5k × /64RIPE NCCSI28th May 2014
2001:67c:604::/4865.5k × /64RIPE NCCSE3rd Jun 2014
2001:67c:60::/4865.5k × /64RIPE NCCPL31st Jan 2020
2001:67c:60c::/4865.5k × /64RIPE NCCNL10th Feb 2026
2001:67c:610::/4865.5k × /64RIPE NCCDK4th Jun 2014
2001:67c:624::/4865.5k × /64RIPE NCCRO5th Jun 2014
2001:67c:63c::/4865.5k × /64RIPE NCCDE12th Jun 2014
2001:67c:648::/4865.5k × /64RIPE NCCNL16th Jun 2014
2001:67c:650::/4865.5k × /64RIPE NCCRU10th Feb 2026
2001:67c:654::/4865.5k × /64RIPE NCCSE19th Jun 2014
2001:67c:658::/4865.5k × /64RIPE NCCCZ20th Jun 2014
2001:67c:664::/4865.5k × /64RIPE NCCRU30th Jun 2014
2001:67c:668::/4865.5k × /64RIPE NCCAT27th Jun 2019
2001:67c:670::/4865.5k × /64RIPE NCCNL8th Aug 2024
2001:67c:68c::/4865.5k × /64RIPE NCCTR16th Jul 2014
2001:67c:694::/4865.5k × /64RIPE NCCGB17th Jul 2014
2001:67c:6a0::/4865.5k × /64RIPE NCCRU24th Jul 2014
2001:67c:6a8::/4865.5k × /64RIPE NCCGB24th Jul 2014
2001:67c:6b4::/4865.5k × /64RIPE NCCDE31st Jul 2014
2001:67c:6c0::/4865.5k × /64RIPE NCCTR7th Aug 2014
2001:67c:6d4::/4865.5k × /64RIPE NCCDE13th Aug 2014
2001:67c:6dc::/4865.5k × /64RIPE NCCRU27th Aug 2014
2001:67c:6e0::/4865.5k × /64RIPE NCCRU28th Aug 2014
2001:67c:6e4::/4865.5k × /64RIPE NCCEE12th Jun 2024
2001:67c:6f4::/4865.5k × /64RIPE NCCUA28th Jul 2016
2001:67c:6f8::/4865.5k × /64RIPE NCCFR7th Oct 2024
2001:67c:700::/4865.5k × /64RIPE NCCPL4th Sept 2014
2001:67c:70c::/4865.5k × /64RIPE NCCDE15th Jun 2015
2001:67c:718::/4865.5k × /64RIPE NCCPL15th Sept 2014
2001:67c:720::/4865.5k × /64RIPE NCCRU17th Sept 2014
2001:67c:724::/4865.5k × /64RIPE NCCSE17th Sept 2014