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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,392 blocks match, ordered by prefix.

Allocated but unannounced blocks, 41151 to 41200 of 85392
PrefixAddressesRegistryCountryAllocated
2001:df5:4840::/4865.5k × /64APNICVN24th Mar 2025
2001:df5:48c0::/4865.5k × /64APNICAU24th Mar 2025
2001:df5:4900::/4865.5k × /64APNICVN30th May 2018
2001:df5:4940::/4865.5k × /64APNICID24th Mar 2025
2001:df5:4a00::/4865.5k × /64APNICVN21st Sept 2016
2001:df5:4a80::/4865.5k × /64APNICAU6th Nov 2020
2001:df5:4ac0::/4865.5k × /64APNICVN27th Mar 2025
2001:df5:4b00::/4865.5k × /64APNICVN30th May 2018
2001:df5:4b80::/4865.5k × /64APNICBD6th Nov 2020
2001:df5:4bc0::/4865.5k × /64APNICBD29th Mar 2025
2001:df5:4c0::/4865.5k × /64APNICIN30th Jan 2025
2001:df5:4cc0::/4865.5k × /64APNICCN31st Mar 2025
2001:df5:4d00::/4865.5k × /64APNICID30th May 2018
2001:df5:4d40::/4865.5k × /64APNICBD31st Mar 2025
2001:df5:4d80::/4865.5k × /64APNICNP9th Nov 2020
2001:df5:4dc0::/4865.5k × /64APNICVN1st Apr 2025
2001:df5:4e40::/4865.5k × /64APNICIN2nd Apr 2025
2001:df5:4e80::/4865.5k × /64APNICIN9th Nov 2020
2001:df5:4ec0::/4865.5k × /64APNICVN2nd Apr 2025
2001:df5:4f00::/4865.5k × /64APNICID30th May 2018
2001:df5:4f40::/4865.5k × /64APNICBD3rd Apr 2025
2001:df5:4f80::/4865.5k × /64APNICBD10th Nov 2020
2001:df5:500::/4865.5k × /64APNICID2nd May 2018
2001:df5:5040::/4865.5k × /64APNICNP4th Apr 2025
2001:df5:5080::/4865.5k × /64APNICID10th Nov 2020
2001:df5:50c0::/4865.5k × /64APNICAU4th Apr 2025
2001:df5:5141::/4865.5k × /64APNICBD3rd Feb 2026
2001:df5:5180::/4865.5k × /64APNICID10th Nov 2020
2001:df5:51c0::/4865.5k × /64APNICIN4th Apr 2025
2001:df5:5200::/4865.5k × /64APNICHK23rd Sept 2016
2001:df5:5240::/4865.5k × /64APNICIN4th Apr 2025
2001:df5:5300::/4865.5k × /64APNICAU31st May 2018
2001:df5:5380::/4865.5k × /64APNICID10th Nov 2020
2001:df5:540::/4865.5k × /64APNICIN30th Jan 2025
2001:df5:5440::/4865.5k × /64APNICIN8th Apr 2025
2001:df5:54c0::/4865.5k × /64APNICVN8th Apr 2025
2001:df5:5500::/4865.5k × /64APNICID31st May 2018
2001:df5:5540::/4865.5k × /64APNICID9th Apr 2025
2001:df5:5580::/4865.5k × /64APNICIN11th Nov 2020
2001:df5:55c0::/4865.5k × /64APNICID9th Apr 2025
2001:df5:56c0::/4865.5k × /64APNICID9th Apr 2025
2001:df5:5700::/4865.5k × /64APNICFJ1st Jun 2018
2001:df5:5780::/4865.5k × /64APNICHK11th Nov 2020
2001:df5:57c0::/4865.5k × /64APNICID9th Apr 2025
2001:df5:5800::/4865.5k × /64APNICAU29th Apr 2014
2001:df5:580::/4865.5k × /64APNICIN7th Oct 2020
2001:df5:5840::/4865.5k × /64APNICBD11th Apr 2025
2001:df5:5880::/4865.5k × /64APNICID12th Nov 2020
2001:df5:58c0::/4865.5k × /64APNICID11th Apr 2025
2001:df5:5900::/4865.5k × /64APNICIN4th Jun 2018