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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,283 blocks match, ordered by prefix.

Allocated but unannounced blocks, 22451 to 22500 of 26283
PrefixAddressesRegistryCountryAllocated
2605:ddc0::/324.3B × /64ARINUS22nd Jul 2020
2605:df00::/324.3B × /64ARINUS31st Aug 2011
2605:dfc0::/324.3B × /64ARINUS27th Jul 2020
2605:e080::/324.3B × /64ARINUS14th Apr 2026
2605:e0c0::/324.3B × /64ARINUS31st Jul 2020
2605:e100::/324.3B × /64ARINUS31st Aug 2011
2605:e140::/324.3B × /64ARINUS3rd Aug 2020
2605:e180::/324.3B × /64ARINUS2nd Jan 2015
2605:e400::/324.3B × /64ARINUS26th Aug 2010
2605:e40::/324.3B × /64ARINUS19th Feb 2026
2605:e500::/324.3B × /64ARINUS1st Sept 2011
2605:e580::/324.3B × /64ARINUS15th Jan 2015
2605:e5c0::/324.3B × /64ARINUS13th Aug 2020
2605:e600::/324.3B × /64ARINUS31st Jan 2011
2605:e640::/324.3B × /64ARINUS18th Aug 2020
2605:e7c0::/324.3B × /64ARINUS20th Aug 2020
2605:e940::/324.3B × /64ARINUS25th Aug 2020
2605:e9c0::/324.3B × /64ARINUS26th Aug 2020
2605:eb00::/324.3B × /64ARINUS8th Sept 2011
2605:ebc0::/324.3B × /64ARINUS4th Sept 2020
2605:ec0::/324.3B × /64ARINUS28th Nov 2018
2605:ec40::/324.3B × /64ARINUS8th Sept 2020
2605:ed40::/324.3B × /64ARINUS8th Sept 2020
2605:edc0::/324.3B × /64ARINUS8th Sept 2020
2605:eec0::/324.3B × /64ARINUS9th Sept 2020
2605:f0c0::/324.3B × /64ARINUS21st Sept 2020
2605:f180::/324.3B × /64ARINUS9th Feb 2015
2605:f200::/324.3B × /64ARINUS1st Feb 2011
2605:f240::/324.3B × /64ARINUS22nd Sept 2020
2605:f280::/324.3B × /64ARINUS13th Feb 2015
2605:f380::/324.3B × /64ARINUS18th Feb 2015
2605:f3c0::/324.3B × /64ARINUS25th Sept 2020
2605:f40::/324.3B × /64ARINUS29th Nov 2018
2605:f580::/324.3B × /64ARINUS19th Feb 2015
2605:f5c0::/324.3B × /64ARINUS30th Sept 2020
2605:f640::/324.3B × /64ARINUS1st Oct 2020
2605:f780::/36268M × /64ARINUS20th Feb 2015
2605:f7c0::/324.3B × /64ARINUS5th Oct 2020
2605:f800::/324.3B × /64ARINUS11th May 2010
2605:f840::/324.3B × /64ARINUS5th Oct 2020
2605:f8c0::/324.3B × /64ARINUS6th Oct 2020
2605:f940::/324.3B × /64ARINUS6th Oct 2020
2605:f9c0::/324.3B × /64ARINUS8th Oct 2020
2605:fa40::/324.3B × /64ARINUS8th Oct 2020
2605:fb00::/324.3B × /64ARINUS16th Sept 2011
2605:fbc0::/324.3B × /64ARINUS12th Oct 2020
2605:fc0::/324.3B × /64ARINUS3rd Dec 2018
2605:fc40::/324.3B × /64ARINUS12th Oct 2020
2605:fc80::/324.3B × /64ARINUS23rd Feb 2015
2605:fcc0::/324.3B × /64ARINUS12th Oct 2020