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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

950 blocks match, ordered by prefix.

Allocated but unannounced blocks, 551 to 600 of 950
PrefixAddressesRegistryCountryAllocated
2001:67c:2c10::/4865.5k × /64RIPE NCCCH27th Oct 2014
2001:67c:2c20::/4865.5k × /64RIPE NCCCH28th Oct 2014
2001:67c:2c38::/4865.5k × /64RIPE NCCCH3rd Nov 2014
2001:67c:2c4::/4865.5k × /64RIPE NCCCH27th Aug 2010
2001:67c:2d80::/4865.5k × /64RIPE NCCCH18th Aug 2022
2001:67c:2e40::/4865.5k × /64RIPE NCCCH23rd Jun 2022
2001:67c:2e70::/4865.5k × /64RIPE NCCCH31st Mar 2016
2001:67c:2f00::/4865.5k × /64RIPE NCCCH5th Nov 2015
2001:67c:340::/4865.5k × /64RIPE NCCCH4th Nov 2010
2001:67c:370::/4865.5k × /64RIPE NCCCH18th Nov 2010
2001:67c:37c::/4865.5k × /64RIPE NCCCH24th Nov 2010
2001:67c:3fc::/4865.5k × /64RIPE NCCCH6th Aug 2012
2001:67c:444::/4865.5k × /64RIPE NCCCH18th 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:4b8::/4865.5k × /64RIPE NCCCH18th Mar 2014
2001:67c:534::/4865.5k × /64RIPE NCCCH16th Apr 2014
2001:67c:5b0::/4865.5k × /64RIPE NCCCH7th Jul 2026
2001:67c:5d8::/4865.5k × /64RIPE NCCCH23rd May 2014
2001:67c:7dc::/4865.5k × /64RIPE NCCCH17th Oct 2014
2001:67c:94::/4865.5k × /64RIPE NCCCH29th Oct 2009
2001:67c:a7c::/4865.5k × /64RIPE NCCCH23rd Sept 2022
2001:67c:ac0::/4865.5k × /64RIPE NCCCH28th Sept 2022
2001:67c:c0::/4865.5k × /64RIPE NCCCH1st Apr 2015
2001:67c:c10::/4865.5k × /64RIPE NCCCH9th Mar 2023
2001:67c:c8::/4865.5k × /64RIPE NCCCH9th Dec 2009
2001:67c:e4c::/4865.5k × /64RIPE NCCCH2nd Apr 2024
2001:67c:efc::/4865.5k × /64RIPE NCCCH10th Jul 2024
2001:7f8:111::/4865.5k × /64RIPE NCCCH28th May 2021
2001:7f8:119::/4865.5k × /64RIPE NCCCH20th Sept 2021
2001:7f8:11c::/4865.5k × /64RIPE NCCCH5th Jun 2023
2001:7f8:137::/4865.5k × /64RIPE NCCCH17th Jul 2025
2001:7f8:146::/4865.5k × /64RIPE NCCCH15th Jul 2025
2001:7f8:14a::/4865.5k × /64RIPE NCCCH9th Jun 2023
2001:7f8:15c::/4865.5k × /64RIPE NCCCH12th Sept 2024
2001:7f8:16c::/4865.5k × /64RIPE NCCCH19th Sept 2025
2001:7f8:172::/4865.5k × /64RIPE NCCCH30th Mar 2026
2001:7f8:1c::/4865.5k × /64RIPE NCCCH3rd Jun 2003
2001:7f8:24::/4865.5k × /64RIPE NCCCH13th Nov 2003
2001:7f8:93::/4865.5k × /64RIPE NCCCH9th Nov 2023
2001:7f8:b5::/4865.5k × /64RIPE NCCCH26th Jun 2017
2001:7f8:bf::/4865.5k × /64RIPE NCCCH22nd Nov 2017
2001:7f8:c::/4865.5k × /64RIPE NCCCH4th Nov 2002
2001:7f8:ca::/4865.5k × /64RIPE NCCCH23rd Feb 2022
2001:7f8:cc::/4865.5k × /64RIPE NCCCH19th Sept 2018
2001:7f8:d9::/4865.5k × /64RIPE NCCCH10th May 2019
2001:7f8:e7::/4865.5k × /64RIPE NCCCH3rd Dec 2019
2001:df0:de40::/4865.5k × /64APNICCH21st Jun 2022