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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks registered through ARIN

30,456 blocks match, ordered by prefix.

Allocated but unannounced blocks, 23651 to 23700 of 30456
PrefixAddressesRegistryCountryAllocated
2602:819:f000::/4016.8M × /64ARINUS26th Jul 2024
2602:81a:5000::/441M × /64ARINUS1st Oct 2024
2602:81a:6000::/441M × /64ARINUS8th Oct 2024
2602:81a:7000::/4016.8M × /64ARINUS10th Oct 2024
2602:81a:9000::/4016.8M × /64ARINUS28th Oct 2024
2602:81a::/4016.8M × /64ARINUS7th Aug 2024
2602:81a:b000::/441M × /64ARINUS14th Nov 2024
2602:81a:d000::/441M × /64ARINUS21st Nov 2024
2602:81a:e000::/441M × /64ARINUS3rd Dec 2024
2602:81a:f000::/441M × /64ARINUS7th Feb 2025
2602:81b:1000::/441M × /64ARINUS13th Feb 2025
2602:81b:2000::/441M × /64ARINUS18th Feb 2025
2602:81b:4000::/441M × /64ARINUS13th Mar 2025
2602:81b:8000::/441M × /64ARINUS5th May 2025
2602:81b::/4016.8M × /64ARINUS12th Feb 2025
2602:81b:a000::/441M × /64ARINUS19th May 2025
2602:81b:c000::/441M × /64ARINUS3rd Jun 2025
2602:81b:d000::/4016.8M × /64ARINUS23rd Jun 2025
2602:81c:2000::/441M × /64ARINUS19th Aug 2025
2602:81c:5000::/441M × /64ARINUS15th Sept 2025
2602:81c:6000::/441M × /64ARINUS2nd Oct 2025
2602:81c:7000::/4016.8M × /64ARINUS3rd Oct 2025
2602:81c:9000::/441M × /64ARINUS6th Oct 2025
2602:81c::/441M × /64ARINUS21st Jul 2025
2602:81c:c000::/4016.8M × /64ARINUS19th Nov 2025
2602:81c:d000::/4016.8M × /64ARINUS24th Nov 2025
2602:81d:1000::/4016.8M × /64ARINCA15th Jan 2026
2602:81d:2000::/4016.8M × /64ARINUS10th Mar 2026
2602:81d:5000::/441M × /64ARINJM12th Mar 2026
2602:81d:6000::/441M × /64ARINUS25th Mar 2026
2602:81d:8000::/4016.8M × /64ARINUS3rd Apr 2026
2602:81d:9000::/4016.8M × /64ARINUS27th Apr 2026
2602:81d:a000::/441M × /64ARINUS28th Apr 2026
2602:81d:c000::/4016.8M × /64ARINUS8th May 2026
2602:81d:d000::/441M × /64ARINUS12th May 2026
2602:81d:f000::/441M × /64ARINUS4th Jun 2026
2602:81e:1000::/441M × /64ARINCA12th Jun 2026
2602:81e:2000::/441M × /64ARINUS15th Jun 2026
2602:81e:4000::/441M × /64ARINUS1st Jul 2026
2602:81e:6000::/441M × /64ARINUS20th Jul 2026
2602:81e:7000::/441M × /64ARINUS27th Jul 2026
2602:81e:8000::/441M × /64ARINUS6th Aug 2026
2602:81e::/441M × /64ARINUS11th Jun 2026
2602:81e:a000::/441M × /64ARINUS12th Aug 2026
2602:f307::/36268M × /64ARINUS25th Aug 2026
2602:f308::/4016.8M × /64ARINUS25th Aug 2026
2602:f309::/36268M × /64ARINUS24th Aug 2026
2602:f30a::/4016.8M × /64ARINUS24th Aug 2026
2602:f30b::/4016.8M × /64ARINUS24th Aug 2026
2602:f30c::/36268M × /64ARINUS24th Aug 2026