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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 36051 to 36100 of 85346
PrefixAddressesRegistryCountryAllocated
2001:67c:16b4::/4865.5k × /64RIPE NCCNL2nd Nov 2012
2001:67c:16b8::/4865.5k × /64RIPE NCCBG2nd Nov 2012
2001:67c:16bc::/4865.5k × /64RIPE NCCSE2nd Nov 2012
2001:67c:16c::/4865.5k × /64RIPE NCCRU8th Apr 2015
2001:67c:16d8::/4865.5k × /64RIPE NCCRO9th Nov 2012
2001:67c:16e0::/4865.5k × /64RIPE NCCCH11th Aug 2016
2001:67c:16e8::/4865.5k × /64RIPE NCCPL12th Nov 2012
2001:67c:16f0::/4865.5k × /64RIPE NCCRU23rd Apr 2019
2001:67c:16fc::/4865.5k × /64RIPE NCCSE16th Nov 2012
2001:67c:1700::/4865.5k × /64RIPE NCCDE25th Apr 2013
2001:67c:1704::/4865.5k × /64RIPE NCCPL25th Apr 2013
2001:67c:1708::/4865.5k × /64RIPE NCCRU2nd Nov 2018
2001:67c:170::/4865.5k × /64RIPE NCCCH24th Feb 2010
2001:67c:170c::/4865.5k × /64RIPE NCCSK29th Apr 2013
2001:67c:1714::/4865.5k × /64RIPE NCCES15th Apr 2021
2001:67c:1718::/47131k × /64RIPE NCCFR17th Jul 2015
2001:67c:1728::/4865.5k × /64RIPE NCCGI2nd May 2013
2001:67c:172c::/4865.5k × /64RIPE NCCGB3rd May 2013
2001:67c:1738::/4865.5k × /64RIPE NCCPL16th Mar 2021
2001:67c:1744::/4865.5k × /64RIPE NCCDK10th May 2013
2001:67c:174c::/4865.5k × /64RIPE NCCIT27th May 2021
2001:67c:175c::/4865.5k × /64RIPE NCCDE17th May 2013
2001:67c:1760::/4865.5k × /64RIPE NCCDK17th May 2013
2001:67c:1764::/4865.5k × /64RIPE NCCPL27th Dec 2021
2001:67c:1774::/4865.5k × /64RIPE NCCRU22nd May 2013
2001:67c:177c::/4865.5k × /64RIPE NCCLT27th May 2013
2001:67c:1780::/4865.5k × /64RIPE NCCCH27th May 2013
2001:67c:178::/4865.5k × /64RIPE NCCAT2nd Mar 2010
2001:67c:17b4::/4865.5k × /64RIPE NCCCZ4th Jun 2013
2001:67c:17b8::/4865.5k × /64RIPE NCCCZ6th Jun 2013
2001:67c:17c4::/4865.5k × /64RIPE NCCTR15th Oct 2025
2001:67c:17c8::/4865.5k × /64RIPE NCCDE10th Jun 2013
2001:67c:17c::/4865.5k × /64RIPE NCCAT4th Mar 2010
2001:67c:17d0::/4865.5k × /64RIPE NCCCZ11th Jun 2013
2001:67c:17d4::/4865.5k × /64RIPE NCCDE11th Jun 2013
2001:67c:17d8::/4865.5k × /64RIPE NCCCY11th Jun 2013
2001:67c:17e0::/4865.5k × /64RIPE NCCGB16th Aug 2024
2001:67c:17e8::/4865.5k × /64RIPE NCCNO13th Jun 2013
2001:67c:17f8::/4865.5k × /64RIPE NCCRU14th Jun 2013
2001:67c:180::/4865.5k × /64RIPE NCCAT4th Mar 2010
2001:67c:1818::/4865.5k × /64RIPE NCCCH15th Dec 2015
2001:67c:181c::/4865.5k × /64RIPE NCCDE11th Oct 2013
2001:67c:1824::/4865.5k × /64RIPE NCCIS22nd May 2015
2001:67c:182c::/4865.5k × /64RIPE NCCRO15th Oct 2013
2001:67c:1834::/4865.5k × /64RIPE NCCBE15th Oct 2013
2001:67c:1838::/4865.5k × /64RIPE NCCBE15th Oct 2013
2001:67c:183c::/4865.5k × /64RIPE NCCBE15th Oct 2013
2001:67c:1840::/4865.5k × /64RIPE NCCRU15th Oct 2013
2001:67c:1844::/4865.5k × /64RIPE NCCPL27th Dec 2021
2001:67c:1854::/4865.5k × /64RIPE NCCDE16th Dec 2019