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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 3451 to 3500 of 3775
PrefixAddressesRegistryCountryAllocated
2606:21c0::/324.3B × /64ARINCA21st Jan 2021
2606:2340::/324.3B × /64ARINCA1st Feb 2021
2606:2bc0::/324.3B × /64ARINCA4th Mar 2021
2606:3100::/324.3B × /64ARINCA13th Oct 2011
2606:3140::/324.3B × /64ARINCA16th Mar 2021
2606:4380::/324.3B × /64ARINCA8th Jul 2015
2606:49c0::/324.3B × /64ARINCA7th May 2026
2606:4ac0::/324.3B × /64ARINCA29th Apr 2021
2606:5fc0::/324.3B × /64ARINCA8th Jul 2021
2606:60c0::/324.3B × /64ARINCA9th Jul 2021
2606:6180::/324.3B × /64ARINCA11th May 2026
2606:64c0::/324.3B × /64ARINCA21st Jul 2021
2606:6780::/324.3B × /64ARINCA18th Aug 2015
2606:7680::/324.3B × /64ARINCA2nd Sept 2015
2606:7880::/324.3B × /64ARINCA3rd Sept 2015
2606:7cc0::/324.3B × /64ARINCA17th Sept 2021
2606:b0c0::/324.3B × /64ARINCA9th Feb 2022
2606:b240::/324.3B × /64ARINCA11th Feb 2022
2606:b6c0::/324.3B × /64ARINCA22nd Feb 2022
2606:b800::/324.3B × /64ARINCA26th May 2010
2606:c340::/324.3B × /64ARINCA28th Mar 2022
2606:c880::/324.3B × /64ARINCA8th Dec 2015
2606:d180::/324.3B × /64ARINCA17th Dec 2015
2606:d4c0::/324.3B × /64ARINCA24th May 2022
2606:d7c0::/324.3B × /64ARINCA31st May 2022
2606:dd80::/324.3B × /64ARINCA23rd Dec 2015
2606:de00::/324.3B × /64ARINCA16th Feb 2011
2606:dec0::/324.3B × /64ARINCA27th Jun 2022
2606:df40::/324.3B × /64ARINCA28th Jun 2022
2606:dfc0::/324.3B × /64ARINCA30th Jun 2022
2606:e1c0::/324.3B × /64ARINCA7th Jul 2022
2606:e380::/324.3B × /64ARINCA5th Jan 2016
2606:eac0::/324.3B × /64ARINCA9th Aug 2022
2606:eb00::/324.3B × /64ARINCA6th Feb 2012
2606:eb40::/324.3B × /64ARINCA10th Aug 2022
2606:ee00::/324.3B × /64ARINCA16th Feb 2011
2606:eec0::/324.3B × /64ARINCA19th Aug 2022
2606:f2c0::/324.3B × /64ARINCA26th Aug 2022
2606:f3c0::/324.3B × /64ARINCA31st Aug 2022
2606:f880::/324.3B × /64ARINCA10th Feb 2016
2607:100::/324.3B × /64ARINCA22nd Feb 2012
2607:2880::/324.3B × /64ARINCA5th Apr 2016
2607:2d00::/324.3B × /64ARINCA19th Mar 2012
2607:3380::/324.3B × /64ARINCA20th Apr 2016
2607:3ac0::/324.3B × /64ARINCA5th Apr 2023
2607:3b80::/324.3B × /64ARINCA9th Jun 2026
2607:4c00::/324.3B × /64ARINCA4th Oct 2010
2607:5340::/324.3B × /64ARINCA13th Jun 2023
2607:5900::/324.3B × /64ARINCA9th Jun 2026
2607:6680::/324.3B × /64ARINCA30th Jun 2016