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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 20051 to 20100 of 26289
PrefixAddressesRegistryCountryAllocated
2602:2c6::/36268M × /64ARINUS19th Apr 2023
2602:2cb::/36268M × /64ARINUS24th Apr 2023
2602:2cc::/36268M × /64ARINUS24th Apr 2023
2602:2ce::/36268M × /64ARINUS1st May 2023
2602:2cf::/36268M × /64ARINUS3rd May 2023
2602:2d4::/36268M × /64ARINUS5th May 2023
2602:2d7::/36268M × /64ARINUS15th May 2023
2602:2db::/36268M × /64ARINUS17th May 2023
2602:2dc::/36268M × /64ARINUS18th May 2023
2602:2df::/36268M × /64ARINUS19th May 2023
2602:2e3::/4016.8M × /64ARINUS31st May 2023
2602:2ec::/4016.8M × /64ARINUS7th Jun 2023
2602:2ee::/36268M × /64ARINUS12th Jun 2023
2602:2f5::/324.3B × /64ARINUS3rd Feb 2025
2602:800:4000::/4016.8M × /64ARINUS4th Mar 2025
2602:800:5000::/4016.8M × /64ARINUS4th Mar 2025
2602:800:6000::/441M × /64ARINUS23rd Jul 2019
2602:800:7000::/4016.8M × /64ARINUS23rd Jul 2019
2602:800:a000::/4016.8M × /64ARINUS5th Aug 2019
2602:800:b000::/36268M × /64ARINUS5th Aug 2019
2602:800:f000::/4016.8M × /64ARINUS21st Aug 2019
2602:801:3000::/4016.8M × /64ARINUS28th Aug 2019
2602:801:4000::/441M × /64ARINUS30th Aug 2019
2602:801:9000::/441M × /64ARINUS2nd Oct 2019
2602:801:b000::/4016.8M × /64ARINUS8th Oct 2019
2602:801:d000::/441M × /64ARINUS11th Oct 2019
2602:802:1000::/4016.8M × /64ARINUS5th Nov 2019
2602:802:3000::/4016.8M × /64ARINUS7th Nov 2019
2602:802:9000::/441M × /64ARINUS10th Dec 2019
2602:802::/4016.8M × /64ARINUS29th Oct 2019
2602:802:a000::/4016.8M × /64ARINUS11th Dec 2019
2602:802:e000::/4016.8M × /64ARINUS18th Dec 2019
2602:802:f000::/441M × /64ARINUS18th Dec 2019
2602:803:2000::/4016.8M × /64ARINUS27th Dec 2019
2602:803:8000::/441M × /64ARINUS8th Jan 2020
2602:803:a000::/4016.8M × /64ARINUS9th Jan 2020
2602:803:d000::/4016.8M × /64ARINUS16th Jan 2020
2602:803:f000::/441M × /64ARINUS28th Jan 2020
2602:804:2000::/441M × /64ARINUS4th Feb 2020
2602:804:3000::/4016.8M × /64ARINUS10th Feb 2020
2602:804:5000::/441M × /64ARINUS10th Feb 2020
2602:804:6000::/441M × /64ARINUS11th Feb 2020
2602:804:7000::/4016.8M × /64ARINUS13th Feb 2020
2602:804:8000::/4016.8M × /64ARINUS19th Feb 2020
2602:804::/4016.8M × /64ARINUS29th Jan 2020
2602:804:a000::/4016.8M × /64ARINUS25th Feb 2020
2602:804:c000::/441M × /64ARINUS27th Feb 2020
2602:804:d000::/441M × /64ARINUS28th Feb 2020
2602:804:e000::/4016.8M × /64ARINUS5th Mar 2020
2602:805:1000::/4016.8M × /64ARINUS23rd Mar 2020