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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 3651 to 3700 of 3775
PrefixAddressesRegistryCountryAllocated
2620:af:c000::/4865.5k × /64ARINCA2nd Mar 2015
2620:b4:8000::/4865.5k × /64ARINCA10th Nov 2011
2620:b7:4000::/4865.5k × /64ARINCA28th Mar 2018
2620:b7:8000::/4865.5k × /64ARINCA2nd Dec 2011
2620:b8:4000::/4865.5k × /64ARINCA22nd Apr 2015
2620:bd::/4865.5k × /64ARINCA3rd Mar 2011
2620:c4:c000::/4865.5k × /64ARINCA7th Jul 2015
2620:c8:a000::/4865.5k × /64ARINCA31st Jul 2026
2620:ca:6000::/4865.5k × /64ARINCA20th Jun 2024
2620:d2:c000::/4865.5k × /64ARINCA27th Aug 2015
2620:d7:4000::/4865.5k × /64ARINCA17th Sept 2015
2620:db:4000::/4865.5k × /64ARINCA28th Sept 2015
2620:dc:8000::/4865.5k × /64ARINCA28th Mar 2012
2620:dc:e000::/4865.5k × /64ARINCA15th Sept 2025
2620:e7:8000::/4865.5k × /64ARINCA25th Apr 2012
2620:f1:4000::/4865.5k × /64ARINCA7th Jan 2016
2620:f2::/4865.5k × /64ARINCA5th Nov 2010
2620:f4:8000::/4865.5k × /64ARINCA31st May 2012
2620:f6:c000::/4865.5k × /64ARINCA3rd Feb 2016
2620:fa:8000::/4865.5k × /64ARINCA13th Jun 2012
2620:fd::/4865.5k × /64ARINCA30th Mar 2011
2620:fd:c000::/4865.5k × /64ARINCA4th Mar 2016
45.59.176.0/221kARINCA6th Jul 2021
52.124.62.0/24256ARINCA26th Apr 2016
52.129.11.0/24256ARINCA11th Feb 2016
64.112.68.0/221kARINCA1st Jul 2021
64.187.0.0/1816.4kARINCA3rd Aug 2001
64.226.192.0/221kARINCA23rd Feb 2000
64.226.200.0/212kARINCA23rd Feb 2000
64.239.68.0/23512ARINCA25th Sept 2001
64.29.16.0/24256ARINCA4th Feb 2000
64.29.20.0/221kARINCA1st Aug 2025
64.40.176.0/204.1kARINCA7th Jul 2003
64.40.4.0/221kARINCA12th Jul 2019
64.46.126.0/24256ARINCA19th Feb 2026
64.5.192.0/1816.4kARINCA15th Dec 1999
64.6.192.0/204.1kARINCA4th Apr 2005
64.6.35.0/24256ARINCA30th Oct 2024
64.65.27.0/24256ARINCA23rd Mar 2000
64.65.32.0/24256ARINCA23rd Mar 2000
64.65.40.0/23512ARINCA14th Aug 2026
64.65.42.0/24256ARINCA23rd Mar 2000
64.65.46.0/24256ARINCA23rd Mar 2000
64.65.60.0/24256ARINCA23rd Mar 2000
64.66.32.0/221kARINCA12th Jul 2019
64.87.128.0/1732.8kARINCA4th May 2001
64.94.86.0/24256ARINCA14th Sept 2023
65.181.110.0/24256ARINCA22nd Apr 2025
65.255.224.0/204.1kARINCA14th Jan 2004
65.39.204.0/24256ARINCA21st Jun 2002