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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Germany
2,758 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 45.90.152.0/22 | 1k | RIPE NCC |  DE | 25th Jun 2019 |
| 45.93.176.0/22 | 1k | RIPE NCC | DE | 4th Jul 2019 |
| 45.93.188.0/22 | 1k | RIPE NCC | DE | 4th Jul 2019 |
| 45.93.196.0/23 | 512 | RIPE NCC | DE | 4th Jul 2019 |
| 45.94.64.0/22 | 1k | RIPE NCC | DE | 5th Jul 2019 |
| 46.149.105.0/24 | 256 | RIPE NCC | DE | 28th Jan 2020 |
| 46.163.104.0/21 | 2k | RIPE NCC | DE | 30th Nov 2010 |
| 46.163.96.0/22 | 1k | RIPE NCC | DE | 30th Nov 2010 |
| 46.174.134.0/24 | 256 | RIPE NCC | DE | 29th Dec 2010 |
| 46.18.184.0/21 | 2k | RIPE NCC | DE | 2nd Nov 2010 |
| 46.182.240.0/21 | 2k | RIPE NCC | DE | 30th Nov 2010 |
| 46.183.152.0/21 | 2k | RIPE NCC | DE | 9th Dec 2010 |
| 46.23.16.0/20 | 4.1k | RIPE NCC | DE | 1st Dec 2010 |
| 46.231.136.0/21 | 2k | RIPE NCC | DE | 7th Feb 2011 |
| 46.253.144.0/20 | 4.1k | RIPE NCC | DE | 14th Jan 2011 |
| 46.29.56.0/21 | 2k | RIPE NCC | DE | 6th Aug 2010 |
| 46.30.192.0/21 | 2k | RIPE NCC | DE | 7th Sept 2010 |
| 46.36.203.0/24 | 256 | RIPE NCC | DE | 10th Jan 2024 |
| 5.1.120.0/21 | 2k | RIPE NCC | DE | 26th Apr 2012 |
| 5.104.152.0/22 | 1k | RIPE NCC | DE | 29th Jun 2012 |
| 5.152.176.0/21 | 2k | RIPE NCC | DE | 19th Jul 2012 |
| 5.159.80.0/20 | 4.1k | RIPE NCC | DE | 27th Jul 2012 |
| 5.180.156.0/22 | 1k | RIPE NCC | DE | 29th Mar 2019 |
| 5.180.88.0/22 | 1k | RIPE NCC | DE | 29th Mar 2019 |
| 5.182.63.0/24 | 256 | RIPE NCC | DE | 21st Jan 2026 |
| 5.183.32.0/22 | 1k | RIPE NCC | DE | 10th Apr 2019 |
| 5.222.0.0/17 | 32.8k | RIPE NCC | DE | 4th Sept 2012 |
| 5.222.128.0/17 | 32.8k | RIPE NCC | DE | 4th Sept 2012 |
| 5.252.140.0/22 | 1k | RIPE NCC | DE | 5th Feb 2019 |
| 5.253.232.0/22 | 1k | RIPE NCC | DE | 11th Feb 2019 |
| 5.253.236.0/22 | 1k | RIPE NCC | DE | 11th Feb 2019 |
| 5.28.192.0/18 | 16.4k | RIPE NCC | DE | 8th May 2012 |
| 51.18.0.0/16 | 65.5k | RIPE NCC | DE | 1st Sept 1993 |
| 62.106.65.0/24 | 256 | RIPE NCC | DE | 7th Oct 2021 |
| 62.106.75.0/24 | 256 | RIPE NCC | DE | 7th Oct 2021 |
| 62.111.0.0/17 | 32.8k | RIPE NCC | DE | 13th Jul 2001 |
| 62.129.150.0/23 | 512 | RIPE NCC | DE | 28th Jul 2000 |
| 62.138.13.0/24 | 256 | RIPE NCC | DE | 19th Sept 2000 |
| 62.138.17.0/24 | 256 | RIPE NCC | DE | 19th Sept 2000 |
| 62.138.28.0/22 | 1k | RIPE NCC | DE | 19th Sept 2000 |
| 62.138.4.0/24 | 256 | RIPE NCC | DE | 19th Sept 2000 |
| 62.138.9.0/24 | 256 | RIPE NCC | DE | 19th Sept 2000 |
| 62.182.40.0/22 | 1k | RIPE NCC | DE | 18th Jun 2018 |
| 62.192.176.0/22 | 1k | RIPE NCC | DE | 10th Jan 2019 |
| 62.192.180.0/22 | 1k | RIPE NCC | DE | 10th Jan 2019 |
| 62.3.40.0/24 | 256 | RIPE NCC | DE | 9th Nov 2021 |
| 62.3.45.0/24 | 256 | RIPE NCC | DE | 9th Nov 2021 |
| 62.69.144.0/21 | 2k | RIPE NCC | DE | 13th Aug 2012 |
| 62.75.134.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.137.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |