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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through RIPE NCC, largest first.

Unannounced blocks registered through RIPE NCC

24,875 blocks match, ordered by prefix.

Allocated but unannounced blocks, 8651 to 8700 of 24875
PrefixAddressesRegistryCountryAllocated
2001:3580::/2934.4B × /64RIPE NCCLT13th Aug 2024
2001:3740::/2934.4B × /64RIPE NCCDE13th Sept 2024
2001:3880::/2934.4B × /64RIPE NCCDE14th Aug 2024
2001:38c0::/324.3B × /64RIPE NCCUS17th Sept 2024
2001:3940::/2934.4B × /64RIPE NCCGE17th Sept 2024
2001:3a00::/2934.4B × /64RIPE NCCDE30th Jul 2024
2001:3b40::/2934.4B × /64RIPE NCCRU19th Sept 2024
2001:3c00::/2934.4B × /64RIPE NCCAZ26th Jul 2024
2001:3cc0::/324.3B × /64RIPE NCCLT20th Sept 2024
2001:3d00::/324.3B × /64RIPE NCCDE6th Aug 2024
2001:3d40::/2934.4B × /64RIPE NCCGE23rd Sept 2024
2001:3d80::/2934.4B × /64RIPE NCCBE25th Apr 2025
2001:3dc0::/2934.4B × /64RIPE NCCSA23rd Sept 2024
2001:3e00::/2934.4B × /64RIPE NCCRU30th Jul 2024
2001:3e80::/2934.4B × /64RIPE NCCIT19th Aug 2024
2001:3ec0::/2934.4B × /64RIPE NCCIR24th Sept 2024
2001:3f00::/324.3B × /64RIPE NCCNL6th Aug 2024
2001:3f40::/2934.4B × /64RIPE NCCIR24th Sept 2024
2001:3f80::/2934.4B × /64RIPE NCCIR9th Dec 2025
2001:4058::/324.3B × /64RIPE NCCRU1st Jul 2004
2001:4068::/324.3B × /64RIPE NCCDE8th Jul 2004
2001:4080::/2934.4B × /64RIPE NCCFR20th Jul 2004
2001:40d8::/324.3B × /64RIPE NCCGB3rd Aug 2004
2001:4108::/324.3B × /64RIPE NCCES10th Sept 2004
2001:4120::/324.3B × /64RIPE NCCNL16th Sept 2004
2001:4128::/2934.4B × /64RIPE NCCNL21st Sept 2004
2001:4140::/324.3B × /64RIPE NCCGB23rd Sept 2004
2001:41a0::/324.3B × /64RIPE NCCIT1st Nov 2004
2001:41e8::/324.3B × /64RIPE NCCGB2nd Dec 2004
2001:4b40::/324.3B × /64RIPE NCCAT20th Jan 2005
2001:4b50::/2934.4B × /64RIPE NCCBE31st Jan 2005
2001:4b70::/2934.4B × /64RIPE NCCIT3rd Feb 2005
2001:4b90::/324.3B × /64RIPE NCCFR18th Feb 2005
2001:4bd0::/324.3B × /64RIPE NCCGB4th Mar 2005
2001:4be0::/324.3B × /64RIPE NCCRU9th Mar 2005
2001:4be8::/324.3B × /64RIPE NCCGB10th Mar 2005
2001:4c60::/324.3B × /64RIPE NCCES9th May 2005
2001:4cb0::/324.3B × /64RIPE NCCGB13th Jun 2005
2001:4d00::/324.3B × /64RIPE NCCAM12th Jul 2005
2001:4d08::/324.3B × /64RIPE NCCDE15th Jul 2005
2001:4d10::/324.3B × /64RIPE NCCES20th Jul 2005
2001:4d30::/324.3B × /64RIPE NCCGB22nd Aug 2005
2001:4db0::/324.3B × /64RIPE NCCDK3rd Nov 2005
2001:678:1008::/4865.5k × /64RIPE NCCPL24th Jan 2025
2001:678:1018::/4865.5k × /64RIPE NCCGB31st Jul 2026
2001:678:1024::/4865.5k × /64RIPE NCCRU4th Feb 2025
2001:678:1044::/4865.5k × /64RIPE NCCPL26th Feb 2025
2001:678:1048::/4865.5k × /64RIPE NCCDE28th Feb 2025
2001:678:104::/4865.5k × /64RIPE NCCCZ22nd Mar 2016
2001:678:104c::/4865.5k × /64RIPE NCCIE28th Feb 2025