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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 3401 to 3450 of 3775
PrefixAddressesRegistryCountryAllocated
2604:ec40::/324.3B × /64ARINCA6th Feb 2026
2604:f000::/324.3B × /64ARINCA16th Mar 2010
2604:f800::/324.3B × /64ARINCA26th Apr 2010
2604:fa80::/324.3B × /64ARINCA28th Aug 2013
2604:fc0::/324.3B × /64ARINCA23rd Jan 2017
2604:ff80::/324.3B × /64ARINCA13th Sept 2013
2605:11c0::/324.3B × /64ARINCA11th Dec 2018
2605:1240::/324.3B × /64ARINCA21st Dec 2018
2605:1300::/324.3B × /64ARINCA3rd Jun 2011
2605:1380::/324.3B × /64ARINCA24th Oct 2013
2605:1c80::/324.3B × /64ARINCA11th Nov 2013
2605:2100::/36268M × /64ARINCA9th Jun 2011
2605:2900::/324.3B × /64ARINCA10th Jun 2011
2605:2dc0::/324.3B × /64ARINCA20th Mar 2019
2605:3740::/36268M × /64ARINCA15th Apr 2019
2605:3d40::/324.3B × /64ARINCA29th Apr 2019
2605:3f00::/324.3B × /64ARINCA16th Jun 2011
2605:4fc0::/324.3B × /64ARINCA28th Jun 2019
2605:5ac0::/324.3B × /64ARINCA29th Jul 2019
2605:5f40::/324.3B × /64ARINCA13th Aug 2019
2605:6a00::/324.3B × /64ARINCA4th Jan 2011
2605:6b00::/324.3B × /64ARINCA14th Jul 2011
2605:6b40::/324.3B × /64ARINCA26th Sept 2019
2605:71c0::/324.3B × /64ARINCA20th Mar 2026
2605:7400::/324.3B × /64ARINCA10th Aug 2010
2605:7480::/324.3B × /64ARINCA23rd May 2014
2605:74c0::/324.3B × /64ARINCA23rd Oct 2019
2605:7e40::/324.3B × /64ARINCA22nd Nov 2019
2605:8040::/324.3B × /64ARINCA26th Nov 2019
2605:8640::/324.3B × /64ARINCA17th Dec 2019
2605:8f40::/324.3B × /64ARINCA8th Jan 2020
2605:9340::/324.3B × /64ARINCA13th Jan 2020
2605:9680::/324.3B × /64ARINCA22nd Jul 2014
2605:98c0::/324.3B × /64ARINCA23rd Jan 2020
2605:a4c0::/324.3B × /64ARINCA14th Feb 2020
2605:b480::/324.3B × /64ARINCA13th Oct 2014
2605:b880::/324.3B × /64ARINCA21st Oct 2014
2605:b900::/324.3B × /64ARINCA16th Aug 2011
2605:ba80::/324.3B × /64ARINCA21st Oct 2014
2605:bac0::/324.3B × /64ARINCA15th Apr 2020
2605:c980::/324.3B × /64ARINCA8th Apr 2026
2605:d240::/324.3B × /64ARINCA15th Jun 2020
2605:d6c0::/324.3B × /64ARINCA1st Jul 2020
2605:d8c0::/324.3B × /64ARINCA10th Jul 2020
2605:e2c0::/324.3B × /64ARINCA6th Aug 2020
2605:e840::/324.3B × /64ARINCA21st Aug 2020
2605:f6c0::/324.3B × /64ARINCA4th Oct 2020
2605:fa00::/324.3B × /64ARINCA2nd Feb 2011
2605:ffc0::/324.3B × /64ARINCA21st Oct 2020
2606:16c0::/324.3B × /64ARINCA30th Dec 2020