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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Türkiye
697 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.14.1.0/24 | 256 | RIPE NCC |  TR | 21st May 2012 |
| 109.104.104.0/24 | 256 | RIPE NCC | TR | 4th Sept 2009 |
| 109.107.134.0/24 | 256 | RIPE NCC | TR | 21st Oct 2021 |
| 109.175.218.0/24 | 256 | RIPE NCC | TR | 17th May 2010 |
| 109.175.222.0/24 | 256 | RIPE NCC | TR | 17th May 2010 |
| 109.175.241.0/24 | 256 | RIPE NCC | TR | 17th May 2010 |
| 109.68.216.0/24 | 256 | RIPE NCC | TR | 9th Jul 2026 |
| 109.74.18.0/24 | 256 | RIPE NCC | TR | 19th Jan 2026 |
| 131.222.132.0/24 | 256 | RIPE NCC | TR | 6th Apr 1990 |
| 131.222.192.0/23 | 512 | RIPE NCC | TR | 6th Apr 1990 |
| 131.222.196.0/23 | 512 | RIPE NCC | TR | 6th Apr 1990 |
| 131.222.220.0/23 | 512 | RIPE NCC | TR | 6th Apr 1990 |
| 131.222.234.0/23 | 512 | RIPE NCC | TR | 6th Apr 1990 |
| 146.19.57.0/24 | 256 | RIPE NCC | TR | 11th Nov 2021 |
| 146.19.70.0/24 | 256 | RIPE NCC | TR | 7th Jan 2025 |
| 153.56.185.0/24 | 256 | RIPE NCC | TR | 23rd Sept 1991 |
| 153.56.186.0/23 | 512 | RIPE NCC | TR | 23rd Sept 1991 |
| 153.56.190.0/23 | 512 | RIPE NCC | TR | 23rd Sept 1991 |
| 164.40.236.0/24 | 256 | RIPE NCC | TR | 12th May 2026 |
| 168.139.0.0/16 | 65.5k | RIPE NCC | TR | 10th May 1994 |
| 178.16.229.0/24 | 256 | RIPE NCC | TR | 10th Mar 2010 |
| 178.16.236.0/24 | 256 | RIPE NCC | TR | 10th Mar 2010 |
| 178.211.156.0/24 | 256 | RIPE NCC | TR | 25th Jan 2022 |
| 178.217.236.0/22 | 1k | RIPE NCC | TR | 4th Jul 2018 |
| 185.1.158.0/24 | 256 | RIPE NCC | TR | 24th Dec 2019 |
| 185.1.221.0/24 | 256 | RIPE NCC | TR | 22nd Oct 2021 |
| 185.1.95.0/24 | 256 | RIPE NCC | TR | 25th Oct 2022 |
| 185.10.243.0/24 | 256 | RIPE NCC | TR | 23rd Jan 2026 |
| 185.10.95.0/24 | 256 | RIPE NCC | TR | 6th May 2026 |
| 185.108.124.0/24 | 256 | RIPE NCC | TR | 20th Feb 2020 |
| 185.113.220.0/23 | 512 | RIPE NCC | TR | 19th Aug 2015 |
| 185.114.192.0/24 | 256 | RIPE NCC | TR | 26th Aug 2015 |
| 185.114.194.0/24 | 256 | RIPE NCC | TR | 26th Aug 2015 |
| 185.116.116.0/24 | 256 | RIPE NCC | TR | 21st Feb 2020 |
| 185.118.140.0/24 | 256 | RIPE NCC | TR | 23rd Sept 2015 |
| 185.119.197.0/24 | 256 | RIPE NCC | TR | 7th Mar 2023 |
| 185.127.42.0/24 | 256 | RIPE NCC | TR | 22nd Jan 2026 |
| 185.133.34.0/24 | 256 | RIPE NCC | TR | 27th Jan 2026 |
| 185.135.108.0/22 | 1k | RIPE NCC | TR | 21st Jan 2016 |
| 185.157.218.0/23 | 512 | RIPE NCC | TR | 30th Jun 2016 |
| 185.160.62.0/24 | 256 | RIPE NCC | TR | 20th Jul 2016 |
| 185.165.78.0/24 | 256 | RIPE NCC | TR | 25th Aug 2016 |
| 185.166.0.0/24 | 256 | RIPE NCC | TR | 30th Jun 2026 |
| 185.175.67.0/24 | 256 | RIPE NCC | TR | 11th Dec 2025 |
| 185.179.126.0/24 | 256 | RIPE NCC | TR | 22nd Jan 2026 |
| 185.19.43.0/24 | 256 | RIPE NCC | TR | 27th Oct 2025 |
| 185.190.16.0/24 | 256 | RIPE NCC | TR | 14th Feb 2017 |
| 185.190.19.0/24 | 256 | RIPE NCC | TR | 14th Feb 2017 |
| 185.196.75.0/24 | 256 | RIPE NCC | TR | 1st Jul 2024 |
| 185.197.183.0/24 | 256 | RIPE NCC | TR | 2nd Oct 2020 |