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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 41251 to 41300 of 85392
PrefixAddressesRegistryCountryAllocated
2001:df5:6b40::/4865.5k × /64APNICAU23rd Apr 2025
2001:df5:6b80::/4865.5k × /64APNICIN20th Nov 2020
2001:df5:6bc0::/4865.5k × /64APNICAU23rd Apr 2025
2001:df5:6c40::/4865.5k × /64APNICAU23rd Apr 2025
2001:df5:6cc0::/4865.5k × /64APNICAU23rd Apr 2025
2001:df5:6d00::/4865.5k × /64APNICAU6th Jun 2018
2001:df5:6d40::/441M × /64APNICVU23rd Apr 2025
2001:df5:6d80::/4865.5k × /64APNICBD22nd Nov 2020
2001:df5:6e40::/4865.5k × /64APNICID23rd Apr 2025
2001:df5:6e80::/4865.5k × /64APNICBD23rd Nov 2020
2001:df5:6ec0::/4865.5k × /64APNICID24th Apr 2025
2001:df5:6f00::/4865.5k × /64APNICAU6th Jun 2018
2001:df5:6f40::/4865.5k × /64APNICID24th Apr 2025
2001:df5:6fc0::/4865.5k × /64APNICID24th Apr 2025
2001:df5:7000::/4865.5k × /64APNICID11th Oct 2013
2001:df5:7040::/4865.5k × /64APNICIN24th Apr 2025
2001:df5:7080::/4865.5k × /64APNICBD23rd Nov 2020
2001:df5:7100::/4865.5k × /64APNICMM6th Jun 2018
2001:df5:71c0::/4865.5k × /64APNICAU24th Apr 2025
2001:df5:7200::/4865.5k × /64APNICBD28th Sept 2016
2001:df5:7240::/4865.5k × /64APNICIN24th Apr 2025
2001:df5:7280::/4865.5k × /64APNICPK24th Nov 2020
2001:df5:72c0::/4865.5k × /64APNICIN25th Apr 2025
2001:df5:7300::/4865.5k × /64APNICHK6th Jun 2018
2001:df5:7340::/4865.5k × /64APNICVN26th Apr 2025
2001:df5:7380::/4865.5k × /64APNICBD24th Nov 2020
2001:df5:73c0::/4865.5k × /64APNICVN26th Apr 2025
2001:df5:7400::/4865.5k × /64APNICID10th Aug 2015
2001:df5:7480::/4865.5k × /64APNICIN24th Nov 2020
2001:df5:74c0::/4865.5k × /64APNICID27th Apr 2025
2001:df5:7500::/4865.5k × /64APNICAU6th Jun 2018
2001:df5:7540::/4865.5k × /64APNICID28th Apr 2025
2001:df5:75c0::/4865.5k × /64APNICNP28th Apr 2025
2001:df5:7600::/4865.5k × /64APNICID28th Sept 2016
2001:df5:7680::/4865.5k × /64APNICVN25th Nov 2020
2001:df5:7700::/4865.5k × /64APNICAU7th Jun 2018
2001:df5:7740::/4865.5k × /64APNICID29th Apr 2025
2001:df5:7780::/4865.5k × /64APNICIN25th Nov 2020
2001:df5:7800::/4865.5k × /64APNICCN30th Apr 2014
2001:df5:780::/4865.5k × /64APNICID7th Oct 2020
2001:df5:7840::/4865.5k × /64APNICAU29th Apr 2025
2001:df5:7880::/4865.5k × /64APNICSG25th Nov 2020
2001:df5:78c0::/4865.5k × /64APNICIN29th Apr 2025
2001:df5:7900::/4865.5k × /64APNICAU7th Jun 2018
2001:df5:7940::/4865.5k × /64APNICIN29th Apr 2025
2001:df5:79c0::/4865.5k × /64APNICBD30th Apr 2025
2001:df5:7a40::/4865.5k × /64APNICIN30th Apr 2025
2001:df5:7a80::/4865.5k × /64APNICIN27th Nov 2020
2001:df5:7ac0::/4865.5k × /64APNICIN1st May 2025
2001:df5:7b80::/4865.5k × /64APNICIN27th Nov 2020