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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 40851 to 40900 of 85392
PrefixAddressesRegistryCountryAllocated
2001:df4:d340::/4865.5k × /64APNICBD27th Dec 2024
2001:df4:d380::/4865.5k × /64APNICIN11th Sept 2020
2001:df4:d40::/4865.5k × /64APNICAU11th Jul 2024
2001:df4:d4c0::/4865.5k × /64APNICBD29th Dec 2024
2001:df4:d500::/4865.5k × /64APNICVN11th Apr 2018
2001:df4:d580::/4865.5k × /64APNICBD15th Sept 2020
2001:df4:d5c0::/4865.5k × /64APNICVN30th Dec 2024
2001:df4:d600::/4865.5k × /64APNICVN5th Sept 2016
2001:df4:d6c0::/4865.5k × /64APNICIN30th Dec 2024
2001:df4:d700::/4865.5k × /64APNICID11th Apr 2018
2001:df4:d780::/4865.5k × /64APNICIN15th Sept 2020
2001:df4:d7c0::/4865.5k × /64APNICVN31st Dec 2024
2001:df4:d800::/4865.5k × /64APNICVN16th Apr 2014
2001:df4:d840::/4865.5k × /64APNICIN31st Dec 2024
2001:df4:d8c0::/4865.5k × /64APNICVN31st Dec 2024
2001:df4:d900::/4865.5k × /64APNICIN11th Apr 2018
2001:df4:db40::/4865.5k × /64APNICMY2nd Jan 2025
2001:df4:dc40::/4865.5k × /64APNICUS2nd Jan 2025
2001:df4:dc80::/4865.5k × /64APNICVN17th Sept 2020
2001:df4:dd00::/4865.5k × /64APNICSG12th Apr 2018
2001:df4:dd40::/4865.5k × /64APNICVN5th Jan 2025
2001:df4:ddc0::/4865.5k × /64APNICVN5th Jan 2025
2001:df4:de00::/4865.5k × /64APNICAU6th Sept 2016
2001:df4:de40::/4865.5k × /64APNICVN5th Jan 2025
2001:df4:dec0::/4865.5k × /64APNICBD6th Jan 2025
2001:df4:df00::/4865.5k × /64APNICID13th Apr 2018
2001:df4:df80::/4865.5k × /64APNICID18th Sept 2020
2001:df4:dfc0::/4865.5k × /64APNICIN7th Jan 2025
2001:df4:e00::/4865.5k × /64APNICID16th Aug 2016
2001:df4:e040::/4865.5k × /64APNICBD8th Jan 2025
2001:df4:e080::/4865.5k × /64APNICBD18th Sept 2020
2001:df4:e100::/4865.5k × /64APNICAU16th Apr 2018
2001:df4:e140::/4865.5k × /64APNICCN9th Jan 2025
2001:df4:e142::/47131k × /64APNICCN22nd May 2025
2001:df4:e1c0::/4865.5k × /64APNICID9th Jan 2025
2001:df4:e240::/4865.5k × /64APNICVN10th Jan 2025
2001:df4:e280::/4865.5k × /64APNICVN18th Sept 2020
2001:df4:e2c0::/4865.5k × /64APNICVN10th Jan 2025
2001:df4:e300::/4865.5k × /64APNICID17th Apr 2018
2001:df4:e340::/4865.5k × /64APNICID10th Jan 2025
2001:df4:e380::/4865.5k × /64APNICVN18th Sept 2020
2001:df4:e3c0::/4865.5k × /64APNICID10th Jan 2025
2001:df4:e400::/4865.5k × /64APNICAU16th Jul 2015
2001:df4:e40::/4865.5k × /64APNICVN11th Jul 2024
2001:df4:e440::/4865.5k × /64APNICID13th Jan 2025
2001:df4:e480::/4865.5k × /64APNICNP21st Sept 2020
2001:df4:e4c0::/4865.5k × /64APNICIN13th Jan 2025
2001:df4:e500::/4865.5k × /64APNICID18th Apr 2018
2001:df4:e540::/4865.5k × /64APNICIN13th Jan 2025
2001:df4:e600::/4865.5k × /64APNICAU6th Sept 2016