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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Poland
920 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 185.126.188.0/22 | 1k | RIPE NCC |  PL | 16th Nov 2015 |
| 185.130.108.0/22 | 1k | RIPE NCC | PL | 8th Dec 2015 |
| 185.135.0.0/22 | 1k | RIPE NCC | PL | 19th Jan 2016 |
| 185.135.197.0/24 | 256 | RIPE NCC | PL | 3rd Feb 2026 |
| 185.142.204.0/22 | 1k | RIPE NCC | PL | 10th Mar 2016 |
| 185.146.8.0/22 | 1k | RIPE NCC | PL | 5th Apr 2016 |
| 185.159.188.0/24 | 256 | RIPE NCC | PL | 18th Jan 2023 |
| 185.16.128.0/22 | 1k | RIPE NCC | PL | 22nd Jan 2013 |
| 185.165.95.0/24 | 256 | RIPE NCC | PL | 2nd Jun 2025 |
| 185.172.248.0/22 | 1k | RIPE NCC | PL | 13th Oct 2016 |
| 185.180.208.0/22 | 1k | RIPE NCC | PL | 7th Dec 2016 |
| 185.184.112.0/22 | 1k | RIPE NCC | PL | 3rd Jan 2017 |
| 185.184.80.0/22 | 1k | RIPE NCC | PL | 3rd Jan 2017 |
| 185.186.96.0/22 | 1k | RIPE NCC | PL | 18th Jan 2017 |
| 185.188.43.0/24 | 256 | RIPE NCC | PL | 29th Jun 2021 |
| 185.190.27.0/24 | 256 | RIPE NCC | PL | 30th Jun 2021 |
| 185.20.20.0/22 | 1k | RIPE NCC | PL | 28th Feb 2013 |
| 185.212.132.0/22 | 1k | RIPE NCC | PL | 12th Jul 2017 |
| 185.219.200.0/22 | 1k | RIPE NCC | PL | 6th Sept 2017 |
| 185.225.108.0/22 | 1k | RIPE NCC | PL | 12th Oct 2017 |
| 185.225.228.0/22 | 1k | RIPE NCC | PL | 16th Oct 2017 |
| 185.23.44.0/22 | 1k | RIPE NCC | PL | 19th Feb 2018 |
| 185.235.76.0/24 | 256 | RIPE NCC | PL | 28th Jan 2021 |
| 185.238.137.0/24 | 256 | RIPE NCC | PL | 18th Aug 2023 |
| 185.24.88.0/22 | 1k | RIPE NCC | PL | 18th Apr 2013 |
| 185.248.147.0/24 | 256 | RIPE NCC | PL | 30th Nov 2022 |
| 185.32.71.0/24 | 256 | RIPE NCC | PL | 4th Apr 2023 |
| 185.36.152.0/22 | 1k | RIPE NCC | PL | 1st Oct 2013 |
| 185.38.220.0/24 | 256 | RIPE NCC | PL | 25th Oct 2013 |
| 185.38.222.0/23 | 512 | RIPE NCC | PL | 25th Oct 2013 |
| 185.5.96.0/22 | 1k | RIPE NCC | PL | 2nd Oct 2012 |
| 185.51.119.0/24 | 256 | RIPE NCC | PL | 21st Mar 2014 |
| 185.59.88.0/22 | 1k | RIPE NCC | PL | 28th May 2014 |
| 185.60.230.0/24 | 256 | RIPE NCC | PL | 12th Jun 2014 |
| 185.66.120.0/22 | 1k | RIPE NCC | PL | 7th Aug 2014 |
| 185.72.156.0/22 | 1k | RIPE NCC | PL | 8th Oct 2014 |
| 188.212.39.0/24 | 256 | RIPE NCC | PL | 8th May 2009 |
| 188.215.36.0/24 | 256 | RIPE NCC | PL | 8th May 2009 |
| 192.147.141.0/24 | 256 | RIPE NCC | PL | 15th Feb 1992 |
| 192.147.42.0/24 | 256 | RIPE NCC | PL | 12th Feb 1992 |
| 192.149.3.0/24 | 256 | RIPE NCC | PL | 21st Feb 1992 |
| 192.150.104.0/24 | 256 | RIPE NCC | PL | 10th Mar 1992 |
| 192.160.110.0/24 | 256 | RIPE NCC | PL | 18th May 1992 |
| 192.162.176.0/22 | 1k | RIPE NCC | PL | 6th Apr 2011 |
| 192.188.236.0/23 | 512 | RIPE NCC | PL | 30th Jul 1992 |
| 192.195.106.0/24 | 256 | RIPE NCC | PL | 22nd Jul 1992 |
| 193.0.144.0/24 | 256 | RIPE NCC | PL | 27th Apr 2012 |
| 193.104.221.0/24 | 256 | RIPE NCC | PL | 18th Dec 2009 |
| 193.105.180.0/24 | 256 | RIPE NCC | PL | 5th Mar 2010 |
| 193.105.202.0/24 | 256 | RIPE NCC | PL | 15th Mar 2010 |