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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

950 blocks match, ordered by prefix.

Allocated but unannounced blocks, 801 to 850 of 950
PrefixAddressesRegistryCountryAllocated
2a10:4ac0::/2934.4B × /64RIPE NCCCH12th Aug 2020
2a10:83c0::/2934.4B × /64RIPE NCCCH5th Feb 2021
2a10:8d40::/2934.4B × /64RIPE NCCCH12th Feb 2021
2a10:c040::/324.3B × /64RIPE NCCCH23rd Mar 2021
2a10:c680::/2934.4B × /64RIPE NCCCH8th Jan 2021
2a10:ce80::/2934.4B × /64RIPE NCCCH12th Jan 2021
2a10:d380::/2934.4B × /64RIPE NCCCH14th Jan 2021
2a10:e40::/2934.4B × /64RIPE NCCCH13th Mar 2020
2a10:e900::/2934.4B × /64RIPE NCCCH25th Nov 2020
2a11:a340::/324.3B × /64RIPE NCCCH25th Nov 2025
2a11:cac0::/2934.4B × /64RIPE NCCCH20th Oct 2021
2a11:ce40::/2934.4B × /64RIPE NCCCH21st Oct 2021
2a11:e480::/2934.4B × /64RIPE NCCCH6th Sept 2021
2a12:5a40::/2934.4B × /64RIPE NCCCH17th Jan 2022
2a12:5ec0::/324.3B × /64RIPE NCCCH24th Feb 2026
2a12:62c0::/2934.4B × /64RIPE NCCCH26th Feb 2026
2a12:87c0::/2934.4B × /64RIPE NCCCH21st Feb 2022
2a12:b240::/324.3B × /64RIPE NCCCH21st Mar 2022
2a12:d7c0::/2934.4B × /64RIPE NCCCH26th Apr 2022
2a13:13c0::/2934.4B × /64RIPE NCCCH25th Oct 2022
2a13:1bc0::/2934.4B × /64RIPE NCCCH3rd Nov 2022
2a13:440::/2934.4B × /64RIPE NCCCH13th Oct 2022
2a13:4a00::/2934.4B × /64RIPE NCCCH21st Jun 2022
2a13:7440::/2934.4B × /64RIPE NCCCH29th Dec 2022
2a13:8380::/2934.4B × /64RIPE NCCCH22nd Feb 2023
2a13:9000::/2934.4B × /64RIPE NCCCH16th Jan 2023
2a13:99c0::/2934.4B × /64RIPE NCCCH25th Jul 2023
2a13:aa00::/2934.4B × /64RIPE NCCCH27th Jan 2023
2a13:de00::/2934.4B × /64RIPE NCCCH2nd Feb 2023
2a14:3800::/2934.4B × /64RIPE NCCCH17th Oct 2023
2a14:49c0::/2934.4B × /64RIPE NCCCH3rd May 2024
2a14:5440::/2934.4B × /64RIPE NCCCH22nd May 2024
2a14:af00::/2934.4B × /64RIPE NCCCH13th Jan 2025
31.130.224.0/204.1kRIPE NCCCH10th May 2011
31.132.8.0/221kRIPE NCCCH12th Jun 2018
31.133.128.0/1816.4kRIPE NCCCH10th May 2011
45.12.120.0/221kRIPE NCCCH1st May 2019
45.13.204.0/221kRIPE NCCCH7th May 2019
45.139.128.0/221kRIPE NCCCH9th Aug 2019
45.141.96.0/221kRIPE NCCCH14th Aug 2019
45.144.20.0/221kRIPE NCCCH22nd Aug 2019
45.148.48.0/24256RIPE NCCCH2nd Sept 2019
45.149.236.0/221kRIPE NCCCH5th Sept 2019
45.151.214.0/24256RIPE NCCCH10th Sept 2019
45.154.200.0/221kRIPE NCCCH17th Sept 2019
45.3.60.0/23512RIPE NCCCH2nd Sept 2015
45.66.172.0/221kRIPE NCCCH13th Feb 2019
45.80.16.0/221kRIPE NCCCH14th May 2019
45.82.36.0/221kRIPE NCCCH22nd May 2019
45.86.132.0/221kRIPE NCCCH12th Jun 2019