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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 35801 to 35850 of 85346
PrefixAddressesRegistryCountryAllocated
2001:678:c3c::/4865.5k × /64RIPE NCCUZ9th Feb 2021
2001:678:c48::/4865.5k × /64RIPE NCCDE7th Feb 2020
2001:678:c4c::/4865.5k × /64RIPE NCCDE29th Dec 2021
2001:678:c54::/4865.5k × /64RIPE NCCDE19th Feb 2020
2001:678:c68::/4865.5k × /64RIPE NCCSI21st Feb 2020
2001:678:c74::/4865.5k × /64RIPE NCCDE25th Feb 2020
2001:678:c78::/4865.5k × /64RIPE NCCIT26th Feb 2020
2001:678:c80::/4865.5k × /64RIPE NCCRU28th Feb 2020
2001:678:c84::/4865.5k × /64RIPE NCCSE9th Feb 2026
2001:678:c8c::/4865.5k × /64RIPE NCCRU2nd Mar 2020
2001:678:c94::/4865.5k × /64RIPE NCCRU3rd Mar 2020
2001:678:ca4::/4865.5k × /64RIPE NCCAM6th Mar 2020
2001:678:cb8::/4865.5k × /64RIPE NCCDE12th Mar 2020
2001:678:cbc::/4865.5k × /64RIPE NCCSE12th Mar 2020
2001:678:cc0::/4865.5k × /64RIPE NCCUA17th Mar 2020
2001:678:cc::/4865.5k × /64RIPE NCCSA23rd Dec 2015
2001:678:cf8::/4865.5k × /64RIPE NCCRU6th Apr 2020
2001:678:d00::/4865.5k × /64RIPE NCCUA12th Jan 2026
2001:678:d0::/4865.5k × /64RIPE NCCNL23rd Dec 2015
2001:678:d10::/4865.5k × /64RIPE NCCDK14th Apr 2020
2001:678:d14::/4865.5k × /64RIPE NCCIS15th Apr 2020
2001:678:d20::/4865.5k × /64RIPE NCCDE22nd Apr 2020
2001:678:d44::/4865.5k × /64RIPE NCCTR15th May 2026
2001:678:d48::/4865.5k × /64RIPE NCCLU30th Jun 2021
2001:678:d4::/4865.5k × /64RIPE NCCIT23rd Dec 2015
2001:678:d60::/4865.5k × /64RIPE NCCPL26th May 2020
2001:678:d68::/4865.5k × /64RIPE NCCNL5th Jun 2020
2001:678:d6c::/4865.5k × /64RIPE NCCNL5th Jun 2020
2001:678:d70::/4865.5k × /64RIPE NCCNL5th Jun 2020
2001:678:d74::/4865.5k × /64RIPE NCCUA8th Jun 2020
2001:678:d7c::/4865.5k × /64RIPE NCCDE9th Jun 2020
2001:678:d80::/4865.5k × /64RIPE NCCLV10th Jun 2020
2001:678:d90::/4865.5k × /64RIPE NCCGB15th Jun 2020
2001:678:d::/4865.5k × /64RIPE NCCAT11th Jun 2009
2001:678:da8::/4865.5k × /64RIPE NCCDE18th Jun 2020
2001:678:dac::/4865.5k × /64RIPE NCCDE18th Jun 2020
2001:678:db0::/4865.5k × /64RIPE NCCFI18th Jun 2020
2001:678:db8::/4865.5k × /64RIPE NCCUA19th Jun 2020
2001:678:dc::/4865.5k × /64RIPE NCCNL7th Jan 2016
2001:678:dcc::/4865.5k × /64RIPE NCCDE6th May 2025
2001:678:dd4::/4865.5k × /64RIPE NCCES2nd Jul 2020
2001:678:dec::/4865.5k × /64RIPE NCCPL3rd Aug 2020
2001:678:df8::/4865.5k × /64RIPE NCCDE5th Aug 2020
2001:678:dfc::/4865.5k × /64RIPE NCCPS20th Mar 2023
2001:678:e10::/4865.5k × /64RIPE NCCGB16th May 2025
2001:678:e14::/4865.5k × /64RIPE NCCSE19th May 2025
2001:678:e2c::/4865.5k × /64RIPE NCCRU7th Sept 2020
2001:678:e30::/4865.5k × /64RIPE NCCRU10th Sept 2020
2001:678:e34::/4865.5k × /64RIPE NCCSE11th Sept 2020
2001:678:e3c::/4865.5k × /64RIPE NCCIQ7th Sept 2026