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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,993 blocks match, ordered by prefix.

Allocated but unannounced blocks, 25251 to 25300 of 26993
PrefixAddressesRegistryCountryAllocated
2620:cc:a000::/4865.5k × /64ARINUS8th Aug 2024
2620:cd:4000::/4865.5k × /64ARINUS3rd Aug 2015
2620:cd:8000::/4865.5k × /64ARINUS24th Feb 2012
2620:cd:e000::/4865.5k × /64ARINUS4th Oct 2024
2620:ce:4000::/4865.5k × /64ARINUS10th Aug 2015
2620:ce:6000::/4865.5k × /64ARINUS10th Oct 2024
2620:ce:8000::/4865.5k × /64ARINUS27th Feb 2012
2620:ce::/4865.5k × /64ARINUS22nd Oct 2010
2620:ce:c000::/4865.5k × /64ARINUS10th Aug 2015
2620:cf:4000::/4865.5k × /64ARINUS10th Aug 2015
2620:cf:6000::/4865.5k × /64ARINUS6th Nov 2024
2620:cf:8000::/4865.5k × /64ARINUS5th Oct 2012
2620:cf:a000::/4865.5k × /64ARINUS8th Nov 2024
2620:cf:c000::/441M × /64ARINUS10th Aug 2015
2620:d0:2000::/4865.5k × /64ARINUS15th Nov 2024
2620:d0:4000::/4865.5k × /64ARINUS17th Aug 2015
2620:d0::/4865.5k × /64ARINUS5th Mar 2010
2620:d1:6000::/4865.5k × /64ARINUS5th Dec 2024
2620:d1::/4865.5k × /64ARINUS15th Mar 2011
2620:d1:a000::/4865.5k × /64ARINUS11th Dec 2024
2620:d1:c000::/4865.5k × /64ARINUS21st Aug 2015
2620:d2:4000::/4865.5k × /64ARINUS24th Aug 2015
2620:d2:a000::/4865.5k × /64ARINUS31st Jan 2025
2620:d3:2000::/4865.5k × /64ARINUS7th Feb 2025
2620:d3:4000::/4865.5k × /64ARINUS28th Aug 2015
2620:d3:a000::/4865.5k × /64ARINUS14th Feb 2025
2620:d3:c000::/4865.5k × /64ARINUS28th Aug 2015
2620:d3:e000::/4865.5k × /64ARINUS21st Feb 2025
2620:d4:4000::/4865.5k × /64ARINUS31st Aug 2015
2620:d4:6000::/4865.5k × /64ARINUS28th Feb 2025
2620:d4:e000::/4865.5k × /64ARINUS17th Mar 2025
2620:d5:4000::/4865.5k × /64ARINUS2nd Sept 2015
2620:d5:8000::/4865.5k × /64ARINUS19th Mar 2012
2620:d5::/4865.5k × /64ARINUS17th Mar 2011
2620:d5:a000::/4865.5k × /64ARINUS3rd Apr 2025
2620:d5:c000::/4865.5k × /64ARINUS10th Sept 2015
2620:d5:e000::/4865.5k × /64ARINUS11th Apr 2025
2620:d6:2000::/4865.5k × /64ARINUS16th Apr 2025
2620:d6:4000::/4865.5k × /64ARINUS15th Sept 2015
2620:d6:6000::/4865.5k × /64ARINUS25th Apr 2025
2620:d6::/4865.5k × /64ARINUS25th Oct 2010
2620:d6:a000::/4865.5k × /64ARINUS7th May 2025
2620:d6:c000::/4865.5k × /64ARINUS15th Sept 2015
2620:d6:e000::/4865.5k × /64ARINUS8th May 2025
2620:d7:2000::/4865.5k × /64ARINUS12th May 2025
2620:d7:8000::/4865.5k × /64ARINUS15th Oct 2012
2620:d7::/4865.5k × /64ARINUS17th Mar 2011
2620:d7:c000::/4865.5k × /64ARINUS18th Sept 2015
2620:d8:2000::/4865.5k × /64ARINUS22nd May 2025
2620:d8:4000::/4865.5k × /64ARINUS21st Sept 2015