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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

931 blocks match, ordered by prefix.

Allocated but unannounced blocks, 351 to 400 of 931
PrefixAddressesRegistryCountryAllocated
2001:df2:d280::/4865.5k × /64APNICHK12th Feb 2020
2001:df2:d680::/4865.5k × /64APNICHK13th Feb 2020
2001:df2:d980::/4865.5k × /64APNICHK17th Feb 2020
2001:df2:da40::/4865.5k × /64APNICHK25th Aug 2023
2001:df2:dc80::/4865.5k × /64APNICHK17th Feb 2020
2001:df3:1e80::/4865.5k × /64APNICHK11th Mar 2020
2001:df3:1f00::/4865.5k × /64APNICHK14th Nov 2017
2001:df3:2d80::/4865.5k × /64APNICHK17th Mar 2020
2001:df3:3040::/4865.5k × /64APNICHK27th Nov 2023
2001:df3:3680::/4865.5k × /64APNICHK19th Mar 2020
2001:df3:4dc0::/4865.5k × /64APNICHK21st Dec 2023
2001:df3:5040::/4865.5k × /64APNICHK26th Dec 2023
2001:df3:5500::/4865.5k × /64APNICHK30th Nov 2017
2001:df3:65c0::/4865.5k × /64APNICHK23rd Jan 2024
2001:df3:7240::/4865.5k × /64APNICHK6th Feb 2024
2001:df3:8200::/4865.5k × /64APNICHK26th Jul 2016
2001:df3:9100::/4865.5k × /64APNICHK14th Dec 2017
2001:df3:9500::/4865.5k × /64APNICHK14th Dec 2017
2001:df3:9c00::/4865.5k × /64APNICHK16th Apr 2015
2001:df3:a400::/4865.5k × /64APNICHK20th Apr 2015
2001:df3:bc81::/4865.5k × /64APNICHK21st May 2020
2001:df3:c180::/4865.5k × /64APNICHK20th May 2020
2001:df3:cd00::/4865.5k × /64APNICHK11th Jan 2018
2001:df3:cd80::/4865.5k × /64APNICHK25th May 2020
2001:df3:f740::/4865.5k × /64APNICHK24th Jun 2024
2001:df4:180::/4865.5k × /64APNICHK19th Jun 2020
2001:df4:1d00::/4865.5k × /64APNICHK6th Feb 2018
2001:df4:3700::/4865.5k × /64APNICHK12th Feb 2018
2001:df4:8c00::/4865.5k × /64APNICHK11th Jun 2015
2001:df4:a0c0::/4865.5k × /64APNICHK15th Nov 2024
2001:df4:ee00::/4865.5k × /64APNICHK7th Sept 2016
2001:df5:20c0::/4865.5k × /64APNICHK20th Feb 2025
2001:df5:2d80::/4865.5k × /64APNICHK26th Oct 2020
2001:df5:3380::/4865.5k × /64APNICHK28th Oct 2020
2001:df5:41c0::/4865.5k × /64APNICHK17th Mar 2025
2001:df5:5200::/4865.5k × /64APNICHK23rd Sept 2016
2001:df5:5780::/4865.5k × /64APNICHK11th Nov 2020
2001:df5:6900::/4865.5k × /64APNICHK6th Jun 2018
2001:df5:7300::/4865.5k × /64APNICHK6th Jun 2018
2001:df5:7e80::/4865.5k × /64APNICHK30th Nov 2020
2001:df5:8540::/4865.5k × /64APNICHK8th May 2025
2001:df5:8580::/4865.5k × /64APNICHK7th Dec 2020
2001:df5:8b00::/4865.5k × /64APNICHK12th Jun 2018
2001:df5:9380::/4865.5k × /64APNICHK11th Dec 2020
2001:df5:9580::/4865.5k × /64APNICHK14th Dec 2020
2001:df5:a900::/4865.5k × /64APNICHK26th Jun 2018
2001:df5:b580::/4865.5k × /64APNICHK30th Dec 2020
2001:df5:b800::/4865.5k × /64APNICHK14th May 2014
2001:df5:ca80::/4865.5k × /64APNICHK12th Jan 2021
2001:df5:f780::/4865.5k × /64APNICHK9th Feb 2021