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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

30,434 blocks match, ordered by prefix.

Allocated but unannounced blocks, 27301 to 27350 of 30434
PrefixAddressesRegistryCountryAllocated
2620:0:5060::/4865.5k × /64ARINCA6th Jan 2010
2620:0:50a0::/4865.5k × /64ARINUS14th Jan 2010
2620:0:50b0::/4865.5k × /64ARINUS21st Jan 2010
2620:0:50c0::/4865.5k × /64ARINUS21st Jan 2010
2620:0:50d0::/47131k × /64ARINUS22nd Jan 2010
2620:0:5200::/4865.5k × /64ARINUS30th Jul 2010
2620:0:600::/4865.5k × /64ARINUS3rd Jul 2007
2620:0:60::/4865.5k × /64ARINUS3rd Oct 2006
2620:0:630::/4865.5k × /64ARINUS11th Jul 2007
2620:0:640::/4865.5k × /64ARINUS13th Jul 2007
2620:0:650::/4865.5k × /64ARINUS20th Jul 2007
2620:0:670::/47131k × /64ARINUS24th Jul 2007
2620:0:680::/4865.5k × /64ARINUS31st Jul 2007
2620:0:6a0::/4865.5k × /64ARINUS2nd Aug 2007
2620:0:6c0::/45524k × /64ARINUS18th Apr 2023
2620:0:6d0::/4865.5k × /64ARINUS22nd Aug 2007
2620:0:6f0::/4865.5k × /64ARINUS28th Aug 2007
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
2620:0:810::/4865.5k × /64ARINCA6th Sept 2007
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:bd0::/4865.5k × /64ARINCA6th Feb 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