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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,356 blocks match, ordered by prefix.

Allocated but unannounced blocks, 37401 to 37450 of 85356
PrefixAddressesRegistryCountryAllocated
2001:d90::/324.3B × /64APNICJP17th Oct 2003
2001:da9::/324.3B × /64APNICCN3rd Feb 2005
2001:dd8:10::/47131k × /64APNICNP24th Mar 2010
2001:dd8:16::/4865.5k × /64APNICSG20th Dec 2010
2001:dd8:1b::/4865.5k × /64APNICIN20th Dec 2010
2001:dd8:20::/47131k × /64APNICIN23rd May 2011
2001:dd8:2::/4865.5k × /64APNICMY20th Nov 2009
2001:dd8:4::/4865.5k × /64APNICSG23rd Feb 2010
2001:dd8:5::/4865.5k × /64APNICCN5th Mar 2010
2001:ddb::/4865.5k × /64APNICJP13th Jul 2022
2001:ddc::/4865.5k × /64APNICMY5th Dec 2014
2001:de3::/4865.5k × /64APNIC—3rd Jul 2025
2001:de6::/324.3B × /64APNICHK9th Apr 2024
2001:de8:11::/4865.5k × /64APNICID6th Apr 2010
2001:de8:12::/4865.5k × /64APNICSG14th May 2010
2001:de8:14::/4865.5k × /64APNICAU29th Nov 2010
2001:de8:15::/4865.5k × /64APNICID9th Dec 2010
2001:de8:19::/4865.5k × /64APNICNZ14th Jan 2011
2001:de8:1::/4865.5k × /64APNICIN10th Jan 2007
2001:de8:1a::/4865.5k × /64APNICID15th Feb 2011
2001:de8:1d::/4865.5k × /64APNICKH29th Mar 2012
2001:de8:1e::/4865.5k × /64APNICJP1st Nov 2012
2001:de8:2000::/4865.5k × /64APNICJP5th May 2026
2001:de8:2::/4865.5k × /64APNICID22nd Apr 2008
2001:de8:3::/4865.5k × /64APNICVN20th Nov 2008
2001:de8:6000::/4865.5k × /64APNICPH9th Jul 2026
2001:de8:8000::/4865.5k × /64APNICWS10th Jul 2015
2001:de8:8::/4865.5k × /64APNICJP11th Aug 2008
2001:de8:a000::/4865.5k × /64APNICSG24th Aug 2026
2001:de8:a::/4865.5k × /64APNICVN20th Nov 2008
2001:de8:b::/4865.5k × /64APNICBD4th Dec 2008
2001:de8:c000::/4865.5k × /64APNICIN17th May 2018
2001:de8:c::/4865.5k × /64APNICJP3rd Mar 2009
2001:de8:d::/4865.5k × /64APNICSG26th Oct 2009
2001:de8:e::/4865.5k × /64APNICTH11th Nov 2009
2001:de8:f::/4865.5k × /64APNICMY12th Jan 2010
2001:de9:4000::/4865.5k × /64APNICGU21st May 2018
2001:de9:8000::/4865.5k × /64APNICID9th Nov 2015
2001:de9::/4865.5k × /64APNICLK9th Apr 2014
2001:de9:c000::/4865.5k × /64APNICPH20th Aug 2018
2001:dea:8000::/4865.5k × /64APNICPG17th Jun 2016
2001:dea::/4865.5k × /64APNICAU18th Jun 2013
2001:dea:c000::/4865.5k × /64APNICMY8th May 2019
2001:deb:4000::/4865.5k × /64APNICKH3rd Jan 2020
2001:deb:8000::/4865.5k × /64APNICBT29th Aug 2016
2001:deb:c000::/4865.5k × /64APNICMY18th Feb 2021
2001:deb:c001::/4865.5k × /64APNICMY19th Jul 2023
2001:dec:4000::/4865.5k × /64APNICIN2nd Jun 2022
2001:dec::/4865.5k × /64APNICVU9th May 2013
2001:dec:c000::/4865.5k × /64APNICMV13th Jul 2022