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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 39651 to 39700 of 85356
PrefixAddressesRegistryCountryAllocated
2001:df3:1740::/4865.5k × /64APNICID31st Oct 2023
2001:df3:1780::/4865.5k × /64APNICBD9th Mar 2020
2001:df3:17c0::/4865.5k × /64APNICID31st Oct 2023
2001:df3:1800::/4865.5k × /64APNICID27th Feb 2014
2001:df3:1880::/4865.5k × /64APNICID10th Mar 2020
2001:df3:18c0::/4865.5k × /64APNICBD1st Nov 2023
2001:df3:1900::/4865.5k × /64APNICNZ13th Nov 2017
2001:df3:1980::/4865.5k × /64APNICID10th Mar 2020
2001:df3:1a80::/4865.5k × /64APNICID10th Mar 2020
2001:df3:1b00::/4865.5k × /64APNICIN13th Nov 2017
2001:df3:1b40::/4865.5k × /64APNICAU3rd Nov 2023
2001:df3:1b80::/4865.5k × /64APNICPH10th Mar 2020
2001:df3:1d00::/4865.5k × /64APNICAU14th Nov 2017
2001:df3:1dc0::/4865.5k × /64APNICBD7th Nov 2023
2001:df3:1e40::/4865.5k × /64APNICBD7th Nov 2023
2001:df3:1e80::/4865.5k × /64APNICHK11th Mar 2020
2001:df3:1ec0::/4865.5k × /64APNICBD7th Nov 2023
2001:df3:1f00::/4865.5k × /64APNICHK14th Nov 2017
2001:df3:1f40::/4865.5k × /64APNICIN8th Nov 2023
2001:df3:1f80::/4865.5k × /64APNICBD12th Mar 2020
2001:df3:2000::/4865.5k × /64APNICID11th Jun 2013
2001:df3:200::/4865.5k × /64APNICIN29th Jun 2016
2001:df3:2080::/4865.5k × /64APNICIN12th Mar 2020
2001:df3:20c0::/4865.5k × /64APNICIN9th Nov 2023
2001:df3:2180::/4865.5k × /64APNICIN12th Mar 2020
2001:df3:21c0::/4865.5k × /64APNICBD12th Nov 2023
2001:df3:2200::/4865.5k × /64APNICIN8th Jul 2016
2001:df3:2280::/4865.5k × /64APNICID12th Mar 2020
2001:df3:22c0::/4865.5k × /64APNICBD13th Nov 2023
2001:df3:2300::/4865.5k × /64APNICID15th Nov 2017
2001:df3:2380::/4865.5k × /64APNICID12th Mar 2020
2001:df3:2400::/4865.5k × /64APNICTH17th Mar 2015
2001:df3:24c0::/4865.5k × /64APNICIN14th Nov 2023
2001:df3:2500::/4865.5k × /64APNICAU16th Nov 2017
2001:df3:2540::/4865.5k × /64APNICID15th Nov 2023
2001:df3:2640::/4865.5k × /64APNICBD15th Nov 2023
2001:df3:26c0::/4865.5k × /64APNICBD16th Nov 2023
2001:df3:2700::/4865.5k × /64APNICID17th Nov 2017
2001:df3:27c0::/4865.5k × /64APNICID17th Nov 2023
2001:df3:280::/4865.5k × /64APNICAU28th Feb 2020
2001:df3:2840::/4865.5k × /64APNICIN17th Nov 2023
2001:df3:2880::/4865.5k × /64APNICID13th Mar 2020
2001:df3:28c0::/4865.5k × /64APNICIN17th Nov 2023
2001:df3:2a00::/4865.5k × /64APNICAU8th Jul 2016
2001:df3:2b00::/4865.5k × /64APNICMY23rd Nov 2017
2001:df3:2bc0::/4865.5k × /64APNICBD21st Nov 2023
2001:df3:2c00::/4865.5k × /64APNICMY19th Mar 2015
2001:df3:2c0::/4865.5k × /64APNICID8th Oct 2023
2001:df3:2c40::/4865.5k × /64APNICID21st Nov 2023
2001:df3:2c80::/4865.5k × /64APNICID16th Mar 2020