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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 36651 to 36700 of 85346
PrefixAddressesRegistryCountryAllocated
2001:67c:37c::/4865.5k × /64RIPE NCCCH24th Nov 2010
2001:67c:384::/4865.5k × /64RIPE NCCDE24th Nov 2010
2001:67c:388::/4865.5k × /64RIPE NCCDE25th Nov 2010
2001:67c:38::/4865.5k × /64RIPE NCCNL27th Jul 2009
2001:67c:3b0::/4865.5k × /64RIPE NCCFR22nd Dec 2010
2001:67c:3b8::/4865.5k × /64RIPE NCCIE29th Dec 2010
2001:67c:3bc::/4865.5k × /64RIPE NCCDK3rd Jan 2011
2001:67c:3c8::/4865.5k × /64RIPE NCCEE6th Jan 2011
2001:67c:3d0::/4865.5k × /64RIPE NCCNL7th Jan 2011
2001:67c:3d8::/4865.5k × /64RIPE NCCGB11th Jan 2011
2001:67c:3e4::/4865.5k × /64RIPE NCCGB25th Jul 2012
2001:67c:3f0::/4865.5k × /64RIPE NCCGB26th Jul 2012
2001:67c:3fc::/4865.5k × /64RIPE NCCCH6th Aug 2012
2001:67c:400::/4865.5k × /64RIPE NCCES9th Feb 2018
2001:67c:40c::/4865.5k × /64RIPE NCCSE6th Feb 2014
2001:67c:410::/4865.5k × /64RIPE NCCSE6th Feb 2014
2001:67c:414::/4865.5k × /64RIPE NCCFR5th Jul 2021
2001:67c:428::/4865.5k × /64RIPE NCCDE31st Aug 2022
2001:67c:42c::/4865.5k × /64RIPE NCCGB12th Feb 2014
2001:67c:430::/4865.5k × /64RIPE NCCRU13th Feb 2014
2001:67c:444::/4865.5k × /64RIPE NCCCH18th Feb 2014
2001:67c:44c::/4865.5k × /64RIPE NCCPL8th Feb 2017
2001:67c:450::/4865.5k × /64RIPE NCCNL10th Feb 2026
2001:67c:454::/4865.5k × /64RIPE NCCCZ20th Feb 2014
2001:67c:460::/4865.5k × /64RIPE NCCNL21st Feb 2014
2001:67c:464::/4865.5k × /64RIPE NCCTR24th Feb 2014
2001:67c:46c::/4865.5k × /64RIPE NCCCH26th Feb 2014
2001:67c:470::/4865.5k × /64RIPE NCCCH6th Apr 2016
2001:67c:474::/4865.5k × /64RIPE NCCCH8th Jun 2021
2001:67c:47c::/4865.5k × /64RIPE NCCCH27th Feb 2014
2001:67c:480::/4865.5k × /64RIPE NCCNO27th Feb 2014
2001:67c:48c::/4865.5k × /64RIPE NCCSI4th Mar 2014
2001:67c:494::/4865.5k × /64RIPE NCCFR6th Mar 2014
2001:67c:498::/4865.5k × /64RIPE NCCSE6th Mar 2014
2001:67c:4a8::/4865.5k × /64RIPE NCCFR7th Oct 2024
2001:67c:4b0::/4865.5k × /64RIPE NCCSK16th Aug 2024
2001:67c:4b4::/4865.5k × /64RIPE NCCRU27th Nov 2017
2001:67c:4b8::/4865.5k × /64RIPE NCCCH18th Mar 2014
2001:67c:4c0::/4865.5k × /64RIPE NCCFR20th Mar 2014
2001:67c:4c4::/4865.5k × /64RIPE NCCSE20th Mar 2014
2001:67c:4cc::/4865.5k × /64RIPE NCCUA4th Mar 2024
2001:67c:4d4::/4865.5k × /64RIPE NCCPL24th Mar 2014
2001:67c:4d8::/4865.5k × /64RIPE NCCSE24th Mar 2014
2001:67c:4f4::/4865.5k × /64RIPE NCCTR1st Apr 2014
2001:67c:4fc::/4865.5k × /64RIPE NCCBE1st Apr 2014
2001:67c:50c::/4865.5k × /64RIPE NCCDE7th Apr 2014
2001:67c:510::/4865.5k × /64RIPE NCCDE7th Apr 2014
2001:67c:51c::/4865.5k × /64RIPE NCCBG21st Nov 2022
2001:67c:520::/4865.5k × /64RIPE NCCNO9th Apr 2014
2001:67c:524::/4865.5k × /64RIPE NCCSE10th Apr 2014