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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 39751 to 39800 of 85356
PrefixAddressesRegistryCountryAllocated
2001:df3:3c00::/4865.5k × /64APNICIN19th Mar 2015
2001:df3:3c80::/4865.5k × /64APNICID23rd Mar 2020
2001:df3:3cc0::/4865.5k × /64APNICIN1st Dec 2023
2001:df3:3d40::/4865.5k × /64APNICBD1st Dec 2023
2001:df3:3d80::/4865.5k × /64APNICID23rd Mar 2020
2001:df3:3e40::/4865.5k × /64APNICBD4th Dec 2023
2001:df3:3e80::/4865.5k × /64APNICID23rd Mar 2020
2001:df3:3ec0::/4865.5k × /64APNICID4th Dec 2023
2001:df3:3f00::/4865.5k × /64APNICID27th Nov 2017
2001:df3:3f80::/4865.5k × /64APNICID23rd Mar 2020
2001:df3:4000::/4865.5k × /64APNICNZ11th Apr 2013
2001:df3:400::/4865.5k × /64APNICID10th Mar 2015
2001:df3:4040::/4865.5k × /64APNICMM6th Dec 2023
2001:df3:40::/4865.5k × /64APNICIN6th Oct 2023
2001:df3:40c0::/4865.5k × /64APNICIN6th Dec 2023
2001:df3:40c1::/4865.5k × /64APNICIN2nd Feb 2024
2001:df3:4100::/4865.5k × /64APNICID27th Nov 2017
2001:df3:4180::/4865.5k × /64APNICNZ23rd Mar 2020
2001:df3:4240::/4865.5k × /64APNICBD8th Dec 2023
2001:df3:42c0::/4865.5k × /64APNICPK8th Dec 2023
2001:df3:4300::/4865.5k × /64APNICAU27th Nov 2017
2001:df3:4380::/4865.5k × /64APNICID26th Mar 2020
2001:df3:440::/4865.5k × /64APNICIN9th Oct 2023
2001:df3:4440::/4865.5k × /64APNICPK11th Dec 2023
2001:df3:4480::/4865.5k × /64APNICID26th Mar 2020
2001:df3:4500::/4865.5k × /64APNICPH27th Nov 2017
2001:df3:4580::/4865.5k × /64APNICID26th Mar 2020
2001:df3:45c0::/4865.5k × /64APNICUS12th Dec 2023
2001:df3:4600::/4865.5k × /64APNICID18th Jul 2016
2001:df3:4640::/4865.5k × /64APNICBD12th Dec 2023
2001:df3:4680::/4865.5k × /64APNICID27th Mar 2020
2001:df3:46c0::/4865.5k × /64APNICUS12th Dec 2023
2001:df3:4780::/4865.5k × /64APNICID27th Mar 2020
2001:df3:47c0::/4865.5k × /64APNICBD13th Dec 2023
2001:df3:4880::/4865.5k × /64APNICID27th Mar 2020
2001:df3:48c0::/4865.5k × /64APNICPH14th Dec 2023
2001:df3:4940::/4865.5k × /64APNICIN14th Dec 2023
2001:df3:4980::/4865.5k × /64APNICPK29th Mar 2020
2001:df3:4a00::/4865.5k × /64APNICPH18th Jul 2016
2001:df3:4a80::/4865.5k × /64APNICVN30th Mar 2020
2001:df3:4ac0::/4865.5k × /64APNICAU18th Dec 2023
2001:df3:4b00::/4865.5k × /64APNICUS28th Nov 2017
2001:df3:4b80::/4865.5k × /64APNICJP31st Mar 2020
2001:df3:4c00::/4865.5k × /64APNICPG25th Mar 2015
2001:df3:4c40::/4865.5k × /64APNICIN19th Dec 2023
2001:df3:4c80::/4865.5k × /64APNICBD31st Mar 2020
2001:df3:4cc0::/4865.5k × /64APNICVN20th Dec 2023
2001:df3:4d00::/4865.5k × /64APNICID28th Nov 2017
2001:df3:4dc0::/4865.5k × /64APNICHK21st Dec 2023
2001:df3:4e00::/4865.5k × /64APNICID19th Jul 2016