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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

2,391 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1001 to 1050 of 2391
PrefixAddressesRegistryCountryAllocated
2001:df5:e380::/4865.5k × /64APNICAU28th Jan 2021
2001:df5:e600::/4865.5k × /64APNICAU25th Oct 2016
2001:df5:ea00::/4865.5k × /64APNICAU25th Oct 2016
2001:df5:ef80::/4865.5k × /64APNICAU3rd Feb 2021
2001:df5:f040::/46262k × /64APNICAU4th Aug 2025
2001:df5:f400::/47131k × /64APNICAU7th Sept 2015
2001:df5:f480::/4865.5k × /64APNICAU5th Feb 2021
2001:df5:f900::/4865.5k × /64APNICAU30th Jul 2018
2001:df5:fb81::/4865.5k × /64APNICAU15th Dec 2025
2001:df5:ff40::/4865.5k × /64APNICAU18th Aug 2025
2001:df6:1080::/4865.5k × /64APNICAU24th Feb 2021
2001:df6:1100::/4865.5k × /64APNICAU2nd Aug 2018
2001:df6:1200::/4865.5k × /64APNICAU1st Nov 2016
2001:df6:1b00::/4865.5k × /64APNICAU6th Aug 2018
2001:df6:2100::/4865.5k × /64APNICAU9th Aug 2018
2001:df6:27c0::/4865.5k × /64APNICAU29th Sept 2025
2001:df6:3980::/4865.5k × /64APNICAU11th Mar 2021
2001:df6:3a00::/4865.5k × /64APNICAU4th Nov 2016
2001:df6:3b00::/4865.5k × /64APNICAU17th Aug 2018
2001:df6:4000::/4865.5k × /64APNICAU2nd May 2013
2001:df6:4001::/4865.5k × /64APNICAU7th Apr 2014
2001:df6:4100::/4865.5k × /64APNICAU23rd Aug 2018
2001:df6:4600::/4865.5k × /64APNICAU7th Nov 2016
2001:df6:47c0::/4865.5k × /64APNICAU6th Nov 2025
2001:df6:4e00::/4865.5k × /64APNICAU8th Nov 2016
2001:df6:5000::/4865.5k × /64APNICAU22nd Oct 2013
2001:df6:500::/4865.5k × /64APNICAU31st Jul 2018
2001:df6:5200::/4865.5k × /64APNICAU8th Nov 2016
2001:df6:5b00::/4865.5k × /64APNICAU31st Aug 2018
2001:df6:5d80::/4865.5k × /64APNICAU30th Mar 2021
2001:df6:5ec0::/4865.5k × /64APNICAU27th Nov 2025
2001:df6:6600::/4865.5k × /64APNICAU11th Nov 2016
2001:df6:6680::/4865.5k × /64APNICAU1st Apr 2021
2001:df6:6a00::/4865.5k × /64APNICAU11th Nov 2016
2001:df6:7a00::/4865.5k × /64APNICAU14th Nov 2016
2001:df6:7c00::/4865.5k × /64APNICAU5th Oct 2015
2001:df6:8200::/4865.5k × /64APNICAU16th Nov 2016
2001:df6:8800::/4865.5k × /64APNICAU20th Jun 2014
2001:df6:9080::/4865.5k × /64APNICAU25th Apr 2021
2001:df6:9300::/4865.5k × /64APNICAU11th Sept 2018
2001:df6:9800::/4865.5k × /64APNICAU23rd Jun 2014
2001:df6:9a80::/4865.5k × /64APNICAU30th Apr 2021
2001:df6:a100::/4865.5k × /64APNICAU14th Sept 2018
2001:df6:ad00::/4865.5k × /64APNICAU17th Sept 2018
2001:df6:ae80::/4865.5k × /64APNICAU20th May 2021
2001:df6:b200::/4865.5k × /64APNICAU21st Nov 2016
2001:df6:b240::/4865.5k × /64APNICAU10th Feb 2026
2001:df6:b600::/4865.5k × /64APNICAU21st Nov 2016
2001:df6:c1c0::/4865.5k × /64APNICAU25th Feb 2026
2001:df6:c200::/4865.5k × /64APNICAU23rd Nov 2016