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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
919 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 193.105.202.0/24 | 256 | RIPE NCC | 15th Mar 2010 | |
| 193.105.221.0/24 | 256 | RIPE NCC | 18th Mar 2010 | |
| 193.105.24.0/24 | 256 | RIPE NCC | 12th Jan 2010 | |
| 193.107.196.0/22 | 1k | RIPE NCC | 5th Mar 2010 | |
| 193.108.228.0/23 | 512 | RIPE NCC | 4th Jul 2001 | |
| 193.108.34.0/23 | 512 | RIPE NCC | 27th Mar 2001 | |
| 193.109.127.0/24 | 256 | RIPE NCC | 4th Oct 2001 | |
| 193.111.36.0/24 | 256 | RIPE NCC | 5th Mar 2002 | |
| 193.111.41.0/24 | 256 | RIPE NCC | 8th Mar 2002 | |
| 193.138.140.0/22 | 1k | RIPE NCC | 15th Nov 2004 | |
| 193.141.177.0/24 | 256 | RIPE NCC | 18th Nov 2019 | |
| 193.142.113.0/24 | 256 | RIPE NCC | 15th Mar 2007 | |
| 193.142.243.0/24 | 256 | RIPE NCC | 28th Mar 2007 | |
| 193.151.64.0/22 | 1k | RIPE NCC | 26th Apr 2004 | |
| 193.151.8.0/22 | 1k | RIPE NCC | 6th Apr 2004 | |
| 193.162.101.0/24 | 256 | RIPE NCC | 4th Feb 2021 | |
| 193.163.178.0/24 | 256 | RIPE NCC | 22nd Apr 2021 | |
| 193.164.129.0/24 | 256 | RIPE NCC | 15th Aug 2006 | |
| 193.169.252.0/22 | 1k | RIPE NCC | 8th May 2018 | |
| 193.17.71.0/24 | 256 | RIPE NCC | 14th Jun 2004 | |
| 193.176.37.0/24 | 256 | RIPE NCC | 6th Aug 2025 | |
| 193.178.117.0/24 | 256 | RIPE NCC | 30th Mar 2005 | |
| 193.178.214.0/24 | 256 | RIPE NCC | 12th Mar 2001 | |
| 193.186.255.0/24 | 256 | RIPE NCC | 13th Jul 2007 | |
| 193.188.134.160/29 | 8 | RIPE NCC | 21st Jun 2006 | |
| 193.188.253.0/24 | 256 | RIPE NCC | 12th May 2005 | |
| 193.19.122.0/23 | 512 | RIPE NCC | 22nd Dec 2003 | |
| 193.19.140.0/22 | 1k | RIPE NCC | 3rd Dec 2003 | |
| 193.200.226.0/24 | 256 | RIPE NCC | 31st Mar 2010 | |
| 193.201.144.0/25 | 128 | RIPE NCC | 21st Mar 2011 | |
| 193.201.149.64/26 | 64 | RIPE NCC | 12th May 2010 | |
| 193.219.126.0/24 | 256 | RIPE NCC | 2nd Oct 2006 | |
| 193.22.169.0/24 | 256 | RIPE NCC | 6th Apr 2004 | |
| 193.227.100.0/24 | 256 | RIPE NCC | 12th Jan 2007 | |
| 193.227.105.0/24 | 256 | RIPE NCC | 30th Aug 2006 | |
| 193.23.158.0/24 | 256 | RIPE NCC | 11th Jul 2024 | |
| 193.238.40.0/22 | 1k | RIPE NCC | 17th Feb 2005 | |
| 193.239.224.0/23 | 512 | RIPE NCC | 13th Jul 2005 | |
| 193.27.204.0/23 | 512 | RIPE NCC | 23rd Dec 2003 | |
| 193.33.4.0/23 | 512 | RIPE NCC | 16th Jan 2007 | |
| 193.34.193.0/25 | 128 | RIPE NCC | 5th Dec 2006 | |
| 193.34.195.128/25 | 128 | RIPE NCC | 9th Jan 2009 | |
| 193.34.196.0/25 | 128 | RIPE NCC | 5th Mar 2007 | |
| 193.34.197.0/25 | 128 | RIPE NCC | 11th Apr 2007 | |
| 193.34.198.128/25 | 128 | RIPE NCC | 27th Apr 2009 | |
| 193.35.24.0/24 | 256 | RIPE NCC | 14th Nov 2019 | |
| 193.35.45.0/24 | 256 | RIPE NCC | 24th Sept 2024 | |
| 193.35.60.0/24 | 256 | RIPE NCC | 4th Jul 2012 | |
| 193.35.61.0/24 | 256 | RIPE NCC | 14th Nov 2019 | |
| 193.41.199.0/24 | 256 | RIPE NCC | 14th Nov 2019 |