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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 40401 to 40450 of 85392
PrefixAddressesRegistryCountryAllocated
2001:df4:37c0::/4865.5k × /64APNICVN27th Aug 2024
2001:df4:3800::/4865.5k × /64APNICBD1st Apr 2014
2001:df4:380::/4865.5k × /64APNICID19th Jun 2020
2001:df4:3880::/4865.5k × /64APNICAU14th Jul 2020
2001:df4:3900::/4865.5k × /64APNICIN12th Feb 2018
2001:df4:3940::/4865.5k × /64APNICIN28th Aug 2024
2001:df4:3980::/4865.5k × /64APNICID14th Jul 2020
2001:df4:39c0::/4865.5k × /64APNICAU28th Aug 2024
2001:df4:3a00::/4865.5k × /64APNICAU29th Aug 2016
2001:df4:3a80::/4865.5k × /64APNICMY14th Jul 2020
2001:df4:3b40::/4865.5k × /64APNICBD3rd Sept 2024
2001:df4:3b80::/4865.5k × /64APNICIN15th Jul 2020
2001:df4:3bc0::/4865.5k × /64APNICIN3rd Sept 2024
2001:df4:3c00::/4865.5k × /64APNICBD26th May 2015
2001:df4:3c0::/4865.5k × /64APNICVN3rd Jul 2024
2001:df4:3cc0::/4865.5k × /64APNICVN5th Sept 2024
2001:df4:3d00::/4865.5k × /64APNICID13th Feb 2018
2001:df4:3d80::/4865.5k × /64APNICCN15th Jul 2020
2001:df4:3dc0::/4865.5k × /64APNICVN5th Sept 2024
2001:df4:3e00::/4865.5k × /64APNICAU29th Aug 2016
2001:df4:3e40::/4865.5k × /64APNICIN5th Sept 2024
2001:df4:3e80::/4865.5k × /64APNICPG16th Jul 2020
2001:df4:3f00::/4865.5k × /64APNICID14th Feb 2018
2001:df4:3f40::/4865.5k × /64APNICAF9th Sept 2024
2001:df4:3f80::/4865.5k × /64APNICBD16th Jul 2020
2001:df4:3fc0::/4865.5k × /64APNICBD9th Sept 2024
2001:df4:4000::/441M × /64APNICSG12th Apr 2013
2001:df4:400::/4865.5k × /64APNICID6th May 2015
2001:df4:4040::/4865.5k × /64APNICIN9th Sept 2024
2001:df4:40::/4865.5k × /64APNICIN1st Jul 2024
2001:df4:4100::/4865.5k × /64APNICPK14th Feb 2018
2001:df4:4140::/4865.5k × /64APNICSG11th Sept 2024
2001:df4:41c0::/4865.5k × /64APNICBD11th Sept 2024
2001:df4:4300::/4865.5k × /64APNICNZ15th Feb 2018
2001:df4:4340::/4865.5k × /64APNICMN12th Sept 2024
2001:df4:4380::/4865.5k × /64APNICPK17th Jul 2020
2001:df4:43c0::/4865.5k × /64APNICAU17th Sept 2024
2001:df4:4440::/4865.5k × /64APNICIN17th Sept 2024
2001:df4:44c0::/4865.5k × /64APNICID17th Sept 2024
2001:df4:4500::/4865.5k × /64APNICIN15th Feb 2018
2001:df4:4540::/4865.5k × /64APNICBD18th Sept 2024
2001:df4:4580::/4865.5k × /64APNICAU17th Jul 2020
2001:df4:4600::/4865.5k × /64APNICIN1st Sept 2016
2001:df4:4640::/4865.5k × /64APNICVN19th Sept 2024
2001:df4:4680::/4865.5k × /64APNICPH18th Jul 2020
2001:df4:46c0::/4865.5k × /64APNICIN19th Sept 2024
2001:df4:4740::/4865.5k × /64APNICIN19th Sept 2024
2001:df4:47c0::/4865.5k × /64APNICVN20th Sept 2024
2001:df4:480::/4865.5k × /64APNICID19th Jun 2020
2001:df4:4840::/4865.5k × /64APNICID20th Sept 2024