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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with unannounced space registered through ARIN, largest first.

Unannounced blocks in United States

26,283 blocks match, ordered by prefix.

Allocated but unannounced blocks, 22501 to 22550 of 26283
PrefixAddressesRegistryCountryAllocated
2605:fd80::/324.3B × /64ARINUS24th Feb 2015
2605:fe00::/36268M × /64ARINUS15th Jul 2013
2605:fe40::/324.3B × /64ARINUS16th Oct 2020
2605:ff00::/324.3B × /64ARINUS19th Sept 2011
2605:ff80::/324.3B × /64ARINUS26th Feb 2015
2606:100::/324.3B × /64ARINUS19th Sept 2011
2606:1080::/324.3B × /64ARINUS3rd Apr 2015
2606:1100::/324.3B × /64ARINUS27th Sept 2011
2606:1180::/324.3B × /64ARINUS3rd Apr 2015
2606:1240::/324.3B × /64ARINUS11th Dec 2020
2606:1300::/324.3B × /64ARINUS27th Sept 2011
2606:1400::/324.3B × /64ARINUS30th Aug 2010
2606:140::/324.3B × /64ARINUS21st Oct 2020
2606:14c0::/324.3B × /64ARINUS21st Dec 2020
2606:1580::/324.3B × /64ARINUS13th Apr 2015
2606:15c0::/324.3B × /64ARINUS23rd Dec 2020
2606:1740::/324.3B × /64ARINUS31st Dec 2020
2606:17c0::/324.3B × /64ARINUS31st Dec 2020
2606:1800::/324.3B × /64ARINUS17th May 2010
2606:180::/324.3B × /64ARINUS2nd Mar 2015
2606:1840::/324.3B × /64ARINUS4th Jan 2021
2606:1880::/324.3B × /64ARINUS28th Apr 2015
2606:18c0::/324.3B × /64ARINUS5th Jan 2021
2606:1940::/324.3B × /64ARINUS23rd Apr 2026
2606:1a80::/324.3B × /64ARINUS30th Apr 2015
2606:1ac0::/324.3B × /64ARINUS6th Jan 2021
2606:1d00::/324.3B × /64ARINUS30th Sept 2011
2606:1d80::/324.3B × /64ARINUS23rd Apr 2026
2606:1dc0::/324.3B × /64ARINUS13th Jan 2021
2606:1e40::/324.3B × /64ARINUS15th Jan 2021
2606:1f00::/324.3B × /64ARINUS28th May 2013
2606:1f40::/324.3B × /64ARINUS15th Jan 2021
2606:2000::/324.3B × /64ARINUS5th Mar 2010
2606:2080::/324.3B × /64ARINUS11th May 2015
2606:20c0::/324.3B × /64ARINUS20th Jan 2021
2606:2100::/324.3B × /64ARINUS3rd Oct 2011
2606:2240::/324.3B × /64ARINUS25th Jan 2021
2606:2280::/324.3B × /64ARINUS14th May 2015
2606:2300::/324.3B × /64ARINUS6th Oct 2011
2606:2540::/324.3B × /64ARINUS5th Feb 2021
2606:2640::/324.3B × /64ARINUS9th Feb 2021
2606:2780::/324.3B × /64ARINUS26th May 2015
2606:27c0::/324.3B × /64ARINUS17th Feb 2021
2606:2840::/324.3B × /64ARINUS18th Feb 2021
2606:2880::/324.3B × /64ARINUS28th May 2015
2606:28c0::/324.3B × /64ARINUS19th Feb 2021
2606:2900::/324.3B × /64ARINUS10th Oct 2011
2606:2940::/324.3B × /64ARINUS19th Feb 2021
2606:2a40::/324.3B × /64ARINUS23rd Feb 2021
2606:2b40::/324.3B × /64ARINUS4th Mar 2021