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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,356 blocks match, ordered by prefix.

Allocated but unannounced blocks, 37451 to 37500 of 85356
PrefixAddressesRegistryCountryAllocated
2001:ded:4000::/4865.5k × /64APNICPH1st Sept 2023
2001:ded::/4865.5k × /64APNICSG13th Oct 2014
2001:ded:c000::/4865.5k × /64APNICTW23rd Oct 2023
2001:dee:4000::/4865.5k × /64APNICSG6th Mar 2024
2001:dee:8000::/4865.5k × /64APNICNZ15th Nov 2016
2001:dee::/4865.5k × /64APNICHK26th Jun 2013
2001:dee:c000::/4865.5k × /64APNICID15th Mar 2024
2001:def:4000::/4865.5k × /64APNICMY16th Apr 2024
2001:def:8000::/47131k × /64APNICNP11th Oct 2017
2001:def::/4865.5k × /64APNICHK16th Jan 2015
2001:df0:100::/4016.8M × /64APNICAU5th Nov 2010
2001:df0:1080::/4865.5k × /64APNICID15th Mar 2019
2001:df0:10::/47131k × /64APNICVN11th Jun 2008
2001:df0:1100::/4865.5k × /64APNICAU24th Jan 2017
2001:df0:1180::/4865.5k × /64APNICMN15th Mar 2019
2001:df0:11c0::/4865.5k × /64APNICIN17th Nov 2021
2001:df0:1240::/4865.5k × /64APNICIN17th Nov 2021
2001:df0:1280::/4865.5k × /64APNICAU18th Mar 2019
2001:df0:12::/4865.5k × /64APNICVN12th Jun 2008
2001:df0:1300::/4865.5k × /64APNICAU24th Jan 2017
2001:df0:1380::/4865.5k × /64APNICVN18th Mar 2019
2001:df0:1480::/4865.5k × /64APNICIN19th Mar 2019
2001:df0:14::/4865.5k × /64APNICSG20th Jun 2008
2001:df0:14c0::/4865.5k × /64APNICIN22nd Nov 2021
2001:df0:1500::/4865.5k × /64APNICTH24th Jan 2017
2001:df0:1540::/4865.5k × /64APNICIN23rd Nov 2021
2001:df0:15::/4865.5k × /64APNICJP25th Jun 2008
2001:df0:1640::/4865.5k × /64APNICBD23rd Nov 2021
2001:df0:1680::/4865.5k × /64APNICBD19th Mar 2019
2001:df0:16c0::/4865.5k × /64APNICPK24th Nov 2021
2001:df0:1780::/4865.5k × /64APNICID20th Mar 2019
2001:df0:17::/4865.5k × /64APNICLK17th Jul 2008
2001:df0:17c0::/4865.5k × /64APNICVN24th Nov 2021
2001:df0:18::/4865.5k × /64APNICMY12th Aug 2008
2001:df0:1940::/4865.5k × /64APNICIN24th Nov 2021
2001:df0:1980::/4865.5k × /64APNICBD22nd Mar 2019
2001:df0:1a40::/4865.5k × /64APNICVN25th Nov 2021
2001:df0:1a80::/4865.5k × /64APNICAU22nd Mar 2019
2001:df0:1b00::/4865.5k × /64APNICID26th Jan 2017
2001:df0:1bc0::/4865.5k × /64APNICCN25th Nov 2021
2001:df0:1c00::/4865.5k × /64APNICAU14th Aug 2014
2001:df0:1c40::/4865.5k × /64APNICSG25th Nov 2021
2001:df0:1c80::/4865.5k × /64APNICBD25th Mar 2019
2001:df0:1c::/4865.5k × /64APNICVN15th Aug 2008
2001:df0:1cc0::/4865.5k × /64APNICBD25th Nov 2021
2001:df0:1d00::/4865.5k × /64APNICMV27th Jan 2017
2001:df0:1d41::/4865.5k × /64APNICBD4th Oct 2023
2001:df0:1d::/4865.5k × /64APNICVN15th Aug 2008
2001:df0:1dc0::/4865.5k × /64APNICIN26th Nov 2021
2001:df0:1e00::/4865.5k × /64APNICAU29th Dec 2015