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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 39801 to 39850 of 85356
PrefixAddressesRegistryCountryAllocated
2001:df3:4ec0::/4865.5k × /64APNICVN22nd Dec 2023
2001:df3:4f00::/4865.5k × /64APNICSG29th Nov 2017
2001:df3:4f80::/4865.5k × /64APNICID2nd Apr 2020
2001:df3:5040::/4865.5k × /64APNICHK26th Dec 2023
2001:df3:5080::/4865.5k × /64APNICBD3rd Apr 2020
2001:df3:50c0::/4865.5k × /64APNICBD27th Dec 2023
2001:df3:5100::/4865.5k × /64APNICNZ29th Nov 2017
2001:df3:51c0::/4865.5k × /64APNICBD28th Dec 2023
2001:df3:5240::/4865.5k × /64APNICBD28th Dec 2023
2001:df3:5280::/4865.5k × /64APNICBD6th Apr 2020
2001:df3:52c0::/4865.5k × /64APNICIN29th Dec 2023
2001:df3:5300::/4865.5k × /64APNICNP29th Nov 2017
2001:df3:53c0::/4865.5k × /64APNICVN3rd Jan 2024
2001:df3:5400::/4865.5k × /64APNICAU27th Mar 2015
2001:df3:5480::/4865.5k × /64APNICID6th Apr 2020
2001:df3:5500::/4865.5k × /64APNICHK30th Nov 2017
2001:df3:5540::/4865.5k × /64APNICBD7th Jan 2024
2001:df3:5600::/4865.5k × /64APNICSG20th Jul 2016
2001:df3:5640::/4865.5k × /64APNICVN8th Jan 2024
2001:df3:5680::/4865.5k × /64APNICBD7th Apr 2020
2001:df3:56c0::/4865.5k × /64APNICIN8th Jan 2024
2001:df3:5780::/4865.5k × /64APNICIN7th Apr 2020
2001:df3:57c0::/4865.5k × /64APNICIN8th Jan 2024
2001:df3:580::/4865.5k × /64APNICSG2nd Mar 2020
2001:df3:58c0::/4865.5k × /64APNICID9th Jan 2024
2001:df3:5900::/4865.5k × /64APNICKH1st Dec 2017
2001:df3:5940::/4865.5k × /64APNICID9th Jan 2024
2001:df3:5a40::/4865.5k × /64APNICBD10th Jan 2024
2001:df3:5a80::/4865.5k × /64APNICBD8th Apr 2020
2001:df3:5ac0::/4865.5k × /64APNICBD10th Jan 2024
2001:df3:5b00::/4865.5k × /64APNICSG1st Dec 2017
2001:df3:5b80::/4865.5k × /64APNICID8th Apr 2020
2001:df3:5c0::/4865.5k × /64APNICAF11th Oct 2023
2001:df3:5c80::/4865.5k × /64APNICBD9th Apr 2020
2001:df3:5d80::/4865.5k × /64APNICBD9th Apr 2020
2001:df3:5dc0::/4865.5k × /64APNICID11th Jan 2024
2001:df3:5e00::/4865.5k × /64APNICID21st Jul 2016
2001:df3:5e40::/4865.5k × /64APNICIN11th Jan 2024
2001:df3:5e80::/4865.5k × /64APNICLA13th Apr 2020
2001:df3:5ec0::/4865.5k × /64APNICBD12th Jan 2024
2001:df3:600::/4865.5k × /64APNICAU29th Jun 2016
2001:df3:6040::/4865.5k × /64APNICIN15th Jan 2024
2001:df3:6080::/4865.5k × /64APNICAU14th Apr 2020
2001:df3:6180::/4865.5k × /64APNICMM14th Apr 2020
2001:df3:6240::/4865.5k × /64APNICSG19th Jan 2024
2001:df3:6280::/4865.5k × /64APNICID14th Apr 2020
2001:df3:6380::/4865.5k × /64APNICID14th Apr 2020
2001:df3:640::/4865.5k × /64APNICLA11th Oct 2023
2001:df3:6440::/4865.5k × /64APNICVN23rd Jan 2024
2001:df3:6480::/4865.5k × /64APNICPK14th Apr 2020