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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,289 blocks match, ordered by prefix.

Allocated but unannounced blocks, 20101 to 20150 of 26289
PrefixAddressesRegistryCountryAllocated
2602:805:2000::/441M × /64ARINUS25th Mar 2020
2602:805:3000::/36268M × /64ARINUS27th Mar 2020
2602:805:5000::/4016.8M × /64ARINUS13th Apr 2020
2602:805:9000::/4016.8M × /64ARINUS24th Apr 2020
2602:805:b000::/441M × /64ARINUS7th May 2020
2602:805:c000::/441M × /64ARINUS11th May 2020
2602:805:e000::/4016.8M × /64ARINUS13th May 2020
2602:805:f000::/4016.8M × /64ARINUS14th May 2020
2602:806:2000::/4016.8M × /64ARINUS20th May 2020
2602:806:3000::/441M × /64ARINUS27th May 2020
2602:806:6000::/4016.8M × /64ARINUS11th Jun 2020
2602:806:8000::/441M × /64ARINUS26th Jun 2020
2602:806:9000::/441M × /64ARINUS1st Jul 2020
2602:806::/4016.8M × /64ARINUS18th May 2020
2602:806:c000::/441M × /64ARINUS13th Jul 2020
2602:806:d000::/4016.8M × /64ARINUS16th Jul 2020
2602:806:e000::/441M × /64ARINUS22nd Jul 2020
2602:807:1000::/441M × /64ARINUS31st Jul 2020
2602:807:2000::/441M × /64ARINUS3rd Aug 2020
2602:807:5000::/4016.8M × /64ARINUS11th Aug 2020
2602:807:7000::/4016.8M × /64ARINUS11th Aug 2020
2602:807:8000::/441M × /64ARINUS1st Sept 2020
2602:807::/4016.8M × /64ARINUS29th Jul 2020
2602:807:b000::/441M × /64ARINUS28th Sept 2020
2602:807:c000::/441M × /64ARINUS30th Sept 2020
2602:807:f000::/4016.8M × /64ARINUS16th Oct 2020
2602:808:6000::/4016.8M × /64ARINUS10th Nov 2020
2602:808:e000::/441M × /64ARINUS1st Dec 2020
2602:808:f000::/441M × /64ARINUS2nd Dec 2020
2602:809:1000::/441M × /64ARINUS3rd Dec 2020
2602:809:2000::/441M × /64ARINUS9th Dec 2020
2602:809:4000::/441M × /64ARINUS6th Jan 2021
2602:809:5000::/4016.8M × /64ARINUS7th Jan 2021
2602:809:7000::/4016.8M × /64ARINUS21st Jan 2021
2602:809::/4016.8M × /64ARINUS2nd Dec 2020
2602:809:a000::/441M × /64ARINUS26th Jan 2021
2602:809:d000::/441M × /64ARINUS15th Feb 2021
2602:809:e000::/4016.8M × /64ARINUS4th Mar 2021
2602:809:f000::/441M × /64ARINUS4th Mar 2021
2602:80a:1000::/4016.8M × /64ARINUS15th Mar 2021
2602:80a:4000::/441M × /64ARINUS1st Apr 2021
2602:80a:6000::/441M × /64ARINUS16th Apr 2021
2602:80a:8000::/441M × /64ARINUS29th Apr 2021
2602:80a:9000::/441M × /64ARINUS6th May 2021
2602:80a:a000::/4016.8M × /64ARINUS13th May 2021
2602:80a:b000::/4016.8M × /64ARINUS21st May 2021
2602:80b:1000::/4016.8M × /64ARINUS24th Jun 2021
2602:80b:2000::/4016.8M × /64ARINUS25th Jun 2021
2602:80b:3000::/4016.8M × /64ARINUS25th Jun 2021
2602:80b::/4016.8M × /64ARINUS16th Jun 2021