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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 36751 to 36800 of 85346
PrefixAddressesRegistryCountryAllocated
2001:67c:72c::/4865.5k × /64RIPE NCCGB18th Sept 2014
2001:67c:730::/4865.5k × /64RIPE NCCUA28th Jan 2019
2001:67c:76c::/4865.5k × /64RIPE NCCRU13th Aug 2020
2001:67c:770::/4865.5k × /64RIPE NCCDE29th Aug 2016
2001:67c:788::/4865.5k × /64RIPE NCCGB3rd Oct 2014
2001:67c:794::/4865.5k × /64RIPE NCCNL9th Oct 2014
2001:67c:798::/4865.5k × /64RIPE NCCDE10th Oct 2014
2001:67c:79c::/4865.5k × /64RIPE NCCRU10th Oct 2014
2001:67c:7b4::/4865.5k × /64RIPE NCCRU15th Oct 2014
2001:67c:7b8::/4865.5k × /64RIPE NCCSE15th Oct 2014
2001:67c:7c0::/46262k × /64RIPE NCCPL16th Oct 2014
2001:67c:7c::/4865.5k × /64RIPE NCCNL19th Nov 2021
2001:67c:7d8::/4865.5k × /64RIPE NCCES16th Oct 2014
2001:67c:7dc::/4865.5k × /64RIPE NCCCH17th Oct 2014
2001:67c:7e0::/4865.5k × /64RIPE NCCDE17th Oct 2014
2001:67c:7ec::/4865.5k × /64RIPE NCCNO21st Oct 2014
2001:67c:7f0::/4865.5k × /64RIPE NCCNO21st Oct 2014
2001:67c:7f4::/4865.5k × /64RIPE NCCKW21st Oct 2014
2001:67c:800::/4865.5k × /64RIPE NCCDK30th Jul 2021
2001:67c:804::/4865.5k × /64RIPE NCCEE3rd Aug 2021
2001:67c:80::/4865.5k × /64RIPE NCCGB1st Apr 2015
2001:67c:80c::/4865.5k × /64RIPE NCCAT4th Aug 2021
2001:67c:820::/4865.5k × /64RIPE NCCES13th Aug 2021
2001:67c:824::/4865.5k × /64RIPE NCCIS17th Aug 2021
2001:67c:82c::/4865.5k × /64RIPE NCCNL14th Oct 2025
2001:67c:834::/4865.5k × /64RIPE NCCIE30th Aug 2021
2001:67c:844::/4865.5k × /64RIPE NCCRO9th Sept 2021
2001:67c:848::/4865.5k × /64RIPE NCCAT10th Sept 2021
2001:67c:84::/4865.5k × /64RIPE NCCRU26th Oct 2009
2001:67c:84c::/4865.5k × /64RIPE NCCAT10th Sept 2021
2001:67c:850::/4865.5k × /64RIPE NCCAT10th Sept 2021
2001:67c:854::/4865.5k × /64RIPE NCCAT10th Sept 2021
2001:67c:858::/4865.5k × /64RIPE NCCAT10th Sept 2021
2001:67c:85c::/4865.5k × /64RIPE NCCAT10th Sept 2021
2001:67c:860::/4865.5k × /64RIPE NCCDE13th Sept 2021
2001:67c:868::/4865.5k × /64RIPE NCCDE14th Sept 2021
2001:67c:86c::/4865.5k × /64RIPE NCCRU15th Sept 2021
2001:67c:870::/4865.5k × /64RIPE NCCRO15th Sept 2021
2001:67c:87c::/4865.5k × /64RIPE NCCKG23rd Sept 2021
2001:67c:884::/4865.5k × /64RIPE NCCBE1st Oct 2021
2001:67c:890::/4865.5k × /64RIPE NCCFR5th Oct 2021
2001:67c:894::/4865.5k × /64RIPE NCCBE6th Oct 2021
2001:67c:898::/4865.5k × /64RIPE NCCDE8th Oct 2021
2001:67c:8a8::/4865.5k × /64RIPE NCCCZ15th Oct 2021
2001:67c:8b0::/4865.5k × /64RIPE NCCRO19th Oct 2021
2001:67c:8b8::/4865.5k × /64RIPE NCCUA12th Nov 2021
2001:67c:8c0::/4865.5k × /64RIPE NCCFR16th Nov 2021
2001:67c:8c4::/4865.5k × /64RIPE NCCSE16th Nov 2021
2001:67c:8c8::/4865.5k × /64RIPE NCCDE26th Nov 2021
2001:67c:8c::/4865.5k × /64RIPE NCCNL10th Feb 2026