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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,277 blocks match, ordered by prefix.

Allocated but unannounced blocks, 23401 to 23450 of 26277
PrefixAddressesRegistryCountryAllocated
2620:0:700::/418.4M × /64ARINUS5th Jul 2007
2620:0:8000::/441M × /64ARINUS23rd Apr 2024
2620:0:800::/47131k × /64ARINUS28th Aug 2007
2620:0:802::/4865.5k × /64ARINUS28th Aug 2007
2620:0:80::/4865.5k × /64ARINUS17th Oct 2006
2620:0:850::/4865.5k × /64ARINUS21st Sept 2007
2620:0:8d0::/4865.5k × /64ARINUS26th Oct 2007
2620:0:8e0::/4865.5k × /64ARINUS26th Oct 2007
2620:0:8f0::/4865.5k × /64ARINUS29th Oct 2007
2620:0:90::/4865.5k × /64ARINUS17th Oct 2006
2620:0:910::/4865.5k × /64ARINUS6th Nov 2007
2620:0:920::/4865.5k × /64ARINUS6th Nov 2007
2620:0:950::/4865.5k × /64ARINUS19th Nov 2007
2620:0:970::/4865.5k × /64ARINUS28th Nov 2007
2620:0:980::/4865.5k × /64ARINUS30th Nov 2007
2620:0:990::/4865.5k × /64ARINUS3rd Dec 2007
2620:0:9a0::/4865.5k × /64ARINUS4th Dec 2007
2620:0:9b0::/4865.5k × /64ARINUS5th Dec 2007
2620:0:9e0::/4865.5k × /64ARINUS10th Dec 2007
2620:0:9f0::/4865.5k × /64ARINUS10th Dec 2007
2620:0:a0::/4865.5k × /64ARINUS23rd Oct 2006
2620:0:b00::/4865.5k × /64ARINUS12th Dec 2007
2620:0:b0::/4865.5k × /64ARINUS6th Nov 2006
2620:0:b40::/4865.5k × /64ARINUS19th Dec 2007
2620:0:b90::/4865.5k × /64ARINUS14th Jan 2008
2620:0:ba0::/4865.5k × /64ARINUS15th Jan 2008
2620:0:bb0::/4865.5k × /64ARINUS16th Jan 2008
2620:0:be0::/4865.5k × /64ARINUS13th Feb 2008
2620:0:c0::/4865.5k × /64ARINUS8th Nov 2006
2620:0:c20::/4865.5k × /64ARINUS5th Mar 2008
2620:0:c30::/4865.5k × /64ARINUS20th Mar 2008
2620:0:c40::/4865.5k × /64ARINUS28th Mar 2008
2620:0:c60::/4865.5k × /64ARINUS8th Apr 2008
2620:0:c70::/4865.5k × /64ARINUS11th Apr 2008
2620:0:cb0::/4865.5k × /64ARINUS30th Apr 2008
2620:0:ce0::/4865.5k × /64ARINUS8th May 2008
2620:0:d500::/4865.5k × /64ARINUS20th Jun 2016
2620:0:d50::/4865.5k × /64ARINUS23rd Nov 2009
2620:0:d70::/45524k × /64ARINUS25th Jun 2008
2620:0:d80::/4865.5k × /64ARINUS14th Dec 2009
2620:0:df0::/4865.5k × /64ARINUS19th Sept 2008
2620:0:e30::/4865.5k × /64ARINUS30th Sept 2008
2620:0:e60::/4865.5k × /64ARINUS19th Jan 2010
2620:0:e80::/4865.5k × /64ARINUS25th Nov 2008
2620:0:e90::/4865.5k × /64ARINUS8th Dec 2008
2620:0:ea0::/441M × /64ARINUS15th Dec 2008
2620:0:eb0::/4865.5k × /64ARINUS18th Dec 2008
2620:0:ed0::/4865.5k × /64ARINUS15th Jan 2009
2620:0:ee0::/4865.5k × /64ARINUS25th Feb 2009
2620:0:ef0::/4865.5k × /64ARINUS26th Feb 2009