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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 103.244.146.0/23 | 512 | RIPE NCC |  PL | 18th Dec 2012 |
| 109.197.32.0/24 | 256 | RIPE NCC | PL | 8th Feb 2010 |
| 109.207.105.0/24 | 256 | RIPE NCC | PL | 4th Feb 2010 |
| 109.207.106.0/24 | 256 | RIPE NCC | PL | 4th Feb 2010 |
| 109.207.107.0/24 | 256 | RIPE NCC | PL | 4th Feb 2010 |
| 109.207.108.0/24 | 256 | RIPE NCC | PL | 4th Feb 2010 |
| 109.207.110.0/24 | 256 | RIPE NCC | PL | 4th Feb 2010 |
| 109.207.111.0/24 | 256 | RIPE NCC | PL | 4th Feb 2010 |
| 109.232.241.0/24 | 256 | RIPE NCC | PL | 9th Dec 2009 |
| 109.232.244.0/23 | 512 | RIPE NCC | PL | 9th Dec 2009 |
| 109.232.246.0/24 | 256 | RIPE NCC | PL | 9th Dec 2009 |
| 109.232.247.0/24 | 256 | RIPE NCC | PL | 9th Dec 2009 |
| 109.69.88.0/21 | 2k | RIPE NCC | PL | 9th Apr 2010 |
| 146.19.33.0/24 | 256 | RIPE NCC | PL | 11th Nov 2021 |
| 151.216.6.0/24 | 256 | RIPE NCC | PL | 5th Aug 2026 |
| 159.205.0.0/16 | 65.5k | RIPE NCC | PL | 20th Sept 2011 |
| 168.222.236.0/22 | 1k | RIPE NCC | PL | 12th Aug 1994 |
| 176.101.80.0/22 | 1k | RIPE NCC | PL | 9th Nov 2011 |
| 176.102.188.0/24 | 256 | RIPE NCC | PL | 29th Nov 2011 |
| 176.102.190.0/23 | 512 | RIPE NCC | PL | 29th Nov 2011 |
| 176.119.221.0/24 | 256 | RIPE NCC | PL | 7th Jan 2020 |
| 176.122.199.0/24 | 256 | RIPE NCC | PL | 26th Jul 2012 |
| 176.122.216.0/21 | 2k | RIPE NCC | PL | 26th Jul 2012 |
| 178.212.48.0/22 | 1k | RIPE NCC | PL | 22nd Jul 2010 |
| 178.212.52.0/23 | 512 | RIPE NCC | PL | 22nd Jul 2010 |
| 178.212.54.0/24 | 256 | RIPE NCC | PL | 22nd Jul 2010 |
| 178.214.128.0/19 | 8.2k | RIPE NCC | PL | 5th Oct 2010 |
| 178.216.40.0/21 | 2k | RIPE NCC | PL | 24th Mar 2010 |
| 178.252.0.0/18 | 16.4k | RIPE NCC | PL | 19th May 2010 |
| 178.36.0.0/15 | 131k | RIPE NCC | PL | 28th Jan 2010 |
| 185.0.16.0/24 | 256 | RIPE NCC | PL | 19th Dec 2022 |
| 185.0.2.0/24 | 256 | RIPE NCC | PL | 30th Apr 2026 |
| 185.0.42.0/23 | 512 | RIPE NCC | PL | 18th Aug 2025 |
| 185.1.10.0/23 | 512 | RIPE NCC | PL | 3rd Apr 2013 |
| 185.1.120.0/24 | 256 | RIPE NCC | PL | 15th Jan 2020 |
| 185.1.130.0/24 | 256 | RIPE NCC | PL | 15th Feb 2019 |
| 185.1.145.0/24 | 256 | RIPE NCC | PL | 25th Sept 2019 |
| 185.1.164.0/24 | 256 | RIPE NCC | PL | 27th Mar 2020 |
| 185.1.17.0/24 | 256 | RIPE NCC | PL | 21st Aug 2013 |
| 185.1.199.0/24 | 256 | RIPE NCC | PL | 15th Feb 2021 |
| 185.1.217.0/24 | 256 | RIPE NCC | PL | 23rd Sept 2021 |
| 185.1.37.0/24 | 256 | RIPE NCC | PL | 28th Jan 2015 |
| 185.1.4.0/22 | 1k | RIPE NCC | PL | 29th Oct 2012 |
| 185.1.42.0/24 | 256 | RIPE NCC | PL | 17th Mar 2015 |
| 185.1.75.0/24 | 256 | RIPE NCC | PL | 7th Jun 2016 |
| 185.1.9.0/24 | 256 | RIPE NCC | PL | 28th Jan 2013 |
| 185.1.91.0/24 | 256 | RIPE NCC | PL | 7th Apr 2017 |
| 185.101.232.0/22 | 1k | RIPE NCC | PL | 27th May 2015 |
| 185.104.64.0/22 | 1k | RIPE NCC | PL | 11th Jun 2015 |
| 185.116.136.0/22 | 1k | RIPE NCC | PL | 9th Sept 2015 |