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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 40951 to 41000 of 85392
PrefixAddressesRegistryCountryAllocated
2001:df4:f4c0::/4865.5k × /64APNICBD20th Jan 2025
2001:df4:f500::/4865.5k × /64APNICAU24th Apr 2018
2001:df4:f540::/4865.5k × /64APNICVN21st Jan 2025
2001:df4:f580::/4865.5k × /64APNICAU30th Sept 2020
2001:df4:f5c0::/4865.5k × /64APNICVN21st Jan 2025
2001:df4:f600::/4865.5k × /64APNICAU8th Sept 2016
2001:df4:f640::/4865.5k × /64APNICID21st Jan 2025
2001:df4:f6c0::/4865.5k × /64APNICID21st Jan 2025
2001:df4:f700::/4865.5k × /64APNICID25th Apr 2018
2001:df4:f740::/4865.5k × /64APNICIN21st Jan 2025
2001:df4:f780::/4865.5k × /64APNICKR1st Oct 2020
2001:df4:f7c0::/4865.5k × /64APNICBD22nd Jan 2025
2001:df4:f880::/4865.5k × /64APNICBD1st Oct 2020
2001:df4:f940::/4865.5k × /64APNICID22nd Jan 2025
2001:df4:f980::/4865.5k × /64APNICID1st Oct 2020
2001:df4:f9c0::/4865.5k × /64APNICID22nd Jan 2025
2001:df4:fa00::/4865.5k × /64APNICAU9th Sept 2016
2001:df4:fa40::/4865.5k × /64APNICIN22nd Jan 2025
2001:df4:fa80::/4865.5k × /64APNICID1st Oct 2020
2001:df4:fac0::/4865.5k × /64APNICID22nd Jan 2025
2001:df4:fb00::/4865.5k × /64APNICID30th Apr 2018
2001:df4:fb40::/4865.5k × /64APNICID23rd Jan 2025
2001:df4:fb80::/4865.5k × /64APNICIN1st Oct 2020
2001:df4:fc00::/4865.5k × /64APNICNZ21st Jul 2015
2001:df4:fc0::/4865.5k × /64APNICSG12th Jul 2024
2001:df4:fc40::/4865.5k × /64APNICVN23rd Jan 2025
2001:df4:fc80::/4865.5k × /64APNICID1st Oct 2020
2001:df4:fcc0::/4865.5k × /64APNICPK24th Jan 2025
2001:df4:fd00::/4865.5k × /64APNICBD1st May 2018
2001:df4:fd80::/4865.5k × /64APNICID1st Oct 2020
2001:df4:fdc0::/4865.5k × /64APNICID27th Jan 2025
2001:df4:fe00::/4865.5k × /64APNICAU9th Sept 2016
2001:df4:fe40::/4865.5k × /64APNICCY27th Jan 2025
2001:df4:fe80::/4865.5k × /64APNICID1st Oct 2020
2001:df4:fec0::/4865.5k × /64APNICID27th Jan 2025
2001:df4:ff00::/4865.5k × /64APNICAU1st May 2018
2001:df4:ffc0::/4865.5k × /64APNICIN28th Jan 2025
2001:df5:1000::/4865.5k × /64APNICNZ10th Oct 2013
2001:df5:100::/4865.5k × /64APNICIN1st May 2018
2001:df5:1040::/4865.5k × /64APNICID6th Feb 2025
2001:df5:1080::/4865.5k × /64APNICNP12th Oct 2020
2001:df5:10c0::/4865.5k × /64APNICID7th Feb 2025
2001:df5:1100::/4865.5k × /64APNICID8th May 2018
2001:df5:1140::/4865.5k × /64APNICMY7th Feb 2025
2001:df5:1180::/4865.5k × /64APNICIN12th Oct 2020
2001:df5:11c0::/4865.5k × /64APNICIN10th Feb 2025
2001:df5:1200::/4865.5k × /64APNICAU13th Sept 2016
2001:df5:1280::/4865.5k × /64APNICID12th Oct 2020
2001:df5:1300::/4865.5k × /64APNICAU10th May 2018
2001:df5:1380::/4865.5k × /64APNICID12th Oct 2020