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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.

Unannounced blocks in Canada

3,819 blocks match, ordered by prefix.

Allocated but unannounced blocks, 3701 to 3750 of 3819
PrefixAddressesRegistryCountryAllocated
2a02:2468::/324.3B × /64RIPE NCCCA20th Sept 2010
2a04:7d40::/2934.4B × /64RIPE NCCCA30th Oct 2013
2a05:4c40::/2934.4B × /64RIPE NCCCA24th Oct 2014
2a05:ccc0::/2934.4B × /64RIPE NCCCA1st Jul 2026
2a06:3e00::/2934.4B × /64RIPE NCCCA16th May 2025
2a07:ff80::/324.3B × /64RIPE NCCCA7th Jun 2018
2a0b:ac0::/2934.4B × /64RIPE NCCCA29th May 2017
2a0e:af80::/324.3B × /64RIPE NCCCA20th Oct 2025
2a12:ea40::/2934.4B × /64RIPE NCCCA6th May 2022
2a13:b780::/2934.4B × /64RIPE NCCCA8th Mar 2023
31.222.230.0/24256RIPE NCCCA6th Oct 2021
45.134.4.0/221kRIPE NCCCA26th Jul 2019
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
65.39.206.0/23512ARINCA21st Jun 2002
65.61.58.0/24256ARINCA30th Aug 2018
66.111.32.0/204.1kARINCA26th Sept 2018
66.118.32.0/221kARINCA4th Oct 2021
66.132.135.0/24256ARINCA8th Aug 2003
66.132.142.0/23512ARINCA1st Aug 2025
66.132.146.0/23512ARINCA8th Aug 2003
66.132.149.0/24256ARINCA8th Aug 2003
66.132.150.0/23512ARINCA8th Aug 2003
66.132.154.0/23512ARINCA8th Aug 2003