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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

3,775 blocks match, ordered by prefix.

Allocated but unannounced blocks, 3601 to 3650 of 3775
PrefixAddressesRegistryCountryAllocated
2620:2b:c000::/4865.5k × /64ARINCA22nd Nov 2019
2620:2d:2000::/4865.5k × /64ARINCA4th Aug 2017
2620:35:4000::/441M × /64ARINCA10th Jul 2013
2620:35:a000::/4865.5k × /64ARINCA15th Jun 2026
2620:36:4000::/441M × /64ARINCA17th Jul 2013
2620:3:2000::/4865.5k × /64ARINCA19th Jul 2016
2620:3:a000::/4865.5k × /64ARINCA21st Jul 2016
2620:41:4000::/4865.5k × /64ARINCA24th Jun 2026
2620:42:c000::/4865.5k × /64ARINCA29th Aug 2013
2620:42:e000::/4865.5k × /64ARINCA12th Feb 2018
2620:44:e000::/4865.5k × /64ARINCA5th Mar 2018
2620:45::/4865.5k × /64ARINCA24th Jan 2011
2620:46:4000::/4865.5k × /64ARINCA13th Sept 2013
2620:4b::/4865.5k × /64ARINCA5th May 2014
2620:4b:a000::/4865.5k × /64ARINCA30th May 2018
2620:4e:4000::/4865.5k × /64ARINCA7th Oct 2013
2620:50:8000::/4865.5k × /64ARINCA11th Mar 2016
2620:51:4000::/4865.5k × /64ARINCA17th Oct 2013
2620:55:2000::/4865.5k × /64ARINCA30th Aug 2018
2620:56:2000::/4865.5k × /64ARINCA5th Sept 2018
2620:5a:4000::/4865.5k × /64ARINCA8th Nov 2013
2620:5b:8000::/4865.5k × /64ARINCA20th Jun 2011
2620:5b:c000::/441M × /64ARINCA13th Nov 2013
2620:5d:a000::/4865.5k × /64ARINCA5th Nov 2018
2620:5e:4000::/4865.5k × /64ARINCA21st Nov 2013
2620:5e:c000::/4865.5k × /64ARINCA22nd Nov 2013
2620:66::/4865.5k × /64ARINCA12th Aug 2010
2620:68:6000::/4865.5k × /64ARINCA25th Feb 2019
2620:68:8000::/4865.5k × /64ARINCA6th Jul 2011
2620:6::/4865.5k × /64ARINCA7th Jun 2010
2620:6a:4000::/4865.5k × /64ARINCA21st Jan 2014
2620:75:2000::/4865.5k × /64ARINCA17th Jul 2019
2620:7f:8000::/4865.5k × /64ARINCA5th Aug 2011
2620:7f:e000::/4865.5k × /64ARINCA6th Jan 2020
2620:80:c000::/4865.5k × /64ARINCA11th Jun 2014
2620:88:e000::/4865.5k × /64ARINCA19th Jun 2020
2620:8f:c000::/4865.5k × /64ARINCA5th Sept 2014
2620:90:2000::/4865.5k × /64ARINCA14th Oct 2020
2620:90::/4865.5k × /64ARINCA6th Aug 2013
2620:91:e000::/4865.5k × /64ARINCA17th Dec 2020
2620:92:c000::/4865.5k × /64ARINCA12th Sept 2014
2620:93:8000::/4865.5k × /64ARINCA31st Aug 2011
2620:96:4000::/441M × /64ARINCA9th Oct 2014
2620:9a:2000::/4865.5k × /64ARINCA9th Jul 2021
2620:9a::/4865.5k × /64ARINCA28th Sept 2010
2620:9e:a000::/4865.5k × /64ARINCA7th Oct 2021
2620:9f:4080::/4865.5k × /64ARINCA9th May 2016
2620:a1:2000::/4865.5k × /64ARINCA29th Nov 2021
2620:ad:c000::/4865.5k × /64ARINCA23rd Feb 2015
2620:ae:2000::/4016.8M × /64ARINCA3rd Aug 2022