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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 in Russia

2,050 blocks match, ordered by prefix.

Allocated but unannounced blocks, 501 to 550 of 2050
PrefixAddressesRegistryCountryAllocated
2001:678:700::/4865.5k × /64RIPE NCCRU31st May 2018
2001:678:7dc::/4865.5k × /64RIPE NCCRU25th Aug 2022
2001:678:85c::/4865.5k × /64RIPE NCCRU16th Oct 2018
2001:678:8fc::/4865.5k × /64RIPE NCCRU11th Jan 2019
2001:678:99c::/4865.5k × /64RIPE NCCRU15th May 2019
2001:678:a60::/4865.5k × /64RIPE NCCRU11th Apr 2019
2001:678:a70::/4865.5k × /64RIPE NCCRU25th Apr 2019
2001:678:b34::/4865.5k × /64RIPE NCCRU28th Apr 2026
2001:678:b3c::/4865.5k × /64RIPE NCCRU17th Oct 2019
2001:678:b48::/4865.5k × /64RIPE NCCRU18th Oct 2019
2001:678:bd4::/4865.5k × /64RIPE NCCRU24th Dec 2019
2001:678:bec::/4865.5k × /64RIPE NCCRU14th Jan 2020
2001:678:c80::/4865.5k × /64RIPE NCCRU28th Feb 2020
2001:678:c8c::/4865.5k × /64RIPE NCCRU2nd Mar 2020
2001:678:c94::/4865.5k × /64RIPE NCCRU3rd Mar 2020
2001:678:cf8::/4865.5k × /64RIPE NCCRU6th Apr 2020
2001:678:e2c::/4865.5k × /64RIPE NCCRU7th Sept 2020
2001:678:e30::/4865.5k × /64RIPE NCCRU10th Sept 2020
2001:678:e84::/4865.5k × /64RIPE NCCRU23rd Oct 2020
2001:678:ee8::/4865.5k × /64RIPE NCCRU9th Dec 2020
2001:678:eec::/4865.5k × /64RIPE NCCRU9th Dec 2020
2001:678:f4::/4865.5k × /64RIPE NCCRU19th Jan 2016
2001:678:f4c::/4865.5k × /64RIPE NCCRU12th May 2021
2001:678:f6c::/4865.5k × /64RIPE NCCRU14th Jun 2021
2001:67c:100::/4865.5k × /64RIPE NCCRU19th Aug 2021
2001:67c:107c::/4865.5k × /64RIPE NCCRU17th Apr 2025
2001:67c:1100::/4865.5k × /64RIPE NCCRU6th Dec 2012
2001:67c:1188::/4865.5k × /64RIPE NCCRU3rd Jan 2013
2001:67c:11fc::/4865.5k × /64RIPE NCCRU22nd Jan 2013
2001:67c:12a8::/4865.5k × /64RIPE NCCRU16th Aug 2022
2001:67c:1304::/4865.5k × /64RIPE NCCRU23rd Jan 2013
2001:67c:131c::/4865.5k × /64RIPE NCCRU28th Jan 2013
2001:67c:1358::/4865.5k × /64RIPE NCCRU14th Feb 2013
2001:67c:1374::/4865.5k × /64RIPE NCCRU21st Feb 2013
2001:67c:13d0::/4865.5k × /64RIPE NCCRU6th Mar 2013
2001:67c:13f0::/4865.5k × /64RIPE NCCRU13th Mar 2013
2001:67c:13fc::/4865.5k × /64RIPE NCCRU13th May 2015
2001:67c:1428::/4865.5k × /64RIPE NCCRU7th May 2018
2001:67c:1480::/4865.5k × /64RIPE NCCRU10th Oct 2012
2001:67c:1494::/4865.5k × /64RIPE NCCRU11th Oct 2012
2001:67c:14ac::/4865.5k × /64RIPE NCCRU31st Mar 2021
2001:67c:150::/4865.5k × /64RIPE NCCRU8th Apr 2015
2001:67c:1574::/4865.5k × /64RIPE NCCRU8th Apr 2013
2001:67c:15f8::/4865.5k × /64RIPE NCCRU25th Apr 2013
2001:67c:16c::/4865.5k × /64RIPE NCCRU8th Apr 2015
2001:67c:16f0::/4865.5k × /64RIPE NCCRU23rd Apr 2019
2001:67c:1708::/4865.5k × /64RIPE NCCRU2nd Nov 2018
2001:67c:1774::/4865.5k × /64RIPE NCCRU22nd May 2013
2001:67c:17f8::/4865.5k × /64RIPE NCCRU14th Jun 2013
2001:67c:1840::/4865.5k × /64RIPE NCCRU15th Oct 2013