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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks in Ireland

239 blocks match, ordered by prefix.

Allocated but unannounced blocks, 151 to 200 of 239
PrefixAddressesRegistryCountryAllocated
2a06:51c0::/2934.4B × /64RIPE NCCIE8th Jul 2025
2a06:7080::/2934.4B × /64RIPE NCCIE25th Aug 2015
2a06:d80::/2934.4B × /64RIPE NCCIE30th Apr 2015
2a07:2a40::/2934.4B × /64RIPE NCCIE8th Mar 2016
2a07:3580::/324.3B × /64RIPE NCCIE22nd May 2025
2a07:3f40::/2934.4B × /64RIPE NCCIE23rd Mar 2016
2a07:e6c0::/2934.4B × /64RIPE NCCIE9th Jan 2020
2a07:ee80::/2934.4B × /64RIPE NCCIE31st May 2018
2a07:f940::/2934.4B × /64RIPE NCCIE11th Jul 2018
2a09:7940::/2934.4B × /64RIPE NCCIE19th Feb 2019
2a09:800::/2934.4B × /64RIPE NCCIE1st Nov 2018
2a0a:5f00::/2934.4B × /64RIPE NCCIE26th Sept 2016
2a0a:abc0::/2934.4B × /64RIPE NCCIE21st Apr 2017
2a0a:f40::/324.3B × /64RIPE NCCIE20th Feb 2017
2a0a:f840::/2934.4B × /64RIPE NCCIE19th May 2017
2a0b:5bc0::/2934.4B × /64RIPE NCCIE28th Jun 2017
2a0b:db40::/2934.4B × /64RIPE NCCIE24th Aug 2017
2a0b:e340::/2934.4B × /64RIPE NCCIE7th Jun 2021
2a0c:4240::/2934.4B × /64RIPE NCCIE5th Apr 2018
2a0c:4f80::/2934.4B × /64RIPE NCCIE3rd Jan 2018
2a0c:5780::/2934.4B × /64RIPE NCCIE23rd Jun 2020
2a0c:9880::/324.3B × /64RIPE NCCIE15th Apr 2026
2a0c:ce00::/2934.4B × /64RIPE NCCIE25th Oct 2017
2a0c:dc00::/324.3B × /64RIPE NCCIE5th Oct 2017
2a0c:f200::/2934.4B × /64RIPE NCCIE5th May 2023
2a0d:1e00::/2934.4B × /64RIPE NCCIE27th Oct 2017
2a0e:1280::/324.3B × /64RIPE NCCIE8th May 2019
2a0e:12c0::/2934.4B × /64RIPE NCCIE27th Jun 2019
2a0e:2b40::/2934.4B × /64RIPE NCCIE5th Jul 2019
2a0e:4480::/2934.4B × /64RIPE NCCIE19th Sept 2025
2a0e:5bc0::/2934.4B × /64RIPE NCCIE19th Jul 2019
2a0e:8d00::/2934.4B × /64RIPE NCCIE30th Apr 2019
2a0e:a800::/2934.4B × /64RIPE NCCIE4th Apr 2019
2a0f:4dc0::/2934.4B × /64RIPE NCCIE5th Nov 2019
2a0f:780::/2934.4B × /64RIPE NCCIE19th Sept 2019
2a0f:9000::/324.3B × /64RIPE NCCIE28th Aug 2019
2a0f:ba40::/2934.4B × /64RIPE NCCIE25th Nov 2019
2a10:4980::/2934.4B × /64RIPE NCCIE17th Apr 2020
2a10:8a00::/2934.4B × /64RIPE NCCIE26th Oct 2020
2a10:a400::/2934.4B × /64RIPE NCCIE16th Oct 2020
2a12:500::/2934.4B × /64RIPE NCCIE9th Nov 2021
2a12:e9c0::/2934.4B × /64RIPE NCCIE5th May 2022
2a12:fa40::/2934.4B × /64RIPE NCCIE24th May 2022
2a14:2800::/2934.4B × /64RIPE NCCIE16th Oct 2023
2a14:a40::/2934.4B × /64RIPE NCCIE21st Feb 2024
2a14:e780::/2934.4B × /64RIPE NCCIE9th Apr 2025
31.25.80.0/212kRIPE NCCIE3rd Mar 2011
37.99.208.0/212kRIPE NCCIE8th Feb 2012
45.155.28.0/221kRIPE NCCIE17th Sept 2019
57.136.0.0/15131kRIPE NCCIE21st Jun 1993