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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 62.75.138.0/23 | 512 | RIPE NCC |  DE | 27th Jul 2001 |
| 62.75.140.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.141.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.142.0/23 | 512 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.144.0/21 | 2k | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.152.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.154.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.155.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.156.0/22 | 1k | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.160.0/22 | 1k | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.164.0/23 | 512 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.166.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.168.0/22 | 1k | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.173.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.175.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.177.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.178.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.184.0/21 | 2k | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.192.0/23 | 512 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.199.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.200.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.205.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.208.0/22 | 1k | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.225.0/24 | 256 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.226.0/23 | 512 | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.240.0/21 | 2k | RIPE NCC | DE | 27th Jul 2001 |
| 62.75.248.0/22 | 1k | RIPE NCC | DE | 27th Jul 2001 |
| 63.246.160.0/19 | 8.2k | RIPE NCC | DE | 25th Oct 2002 |
| 64.39.233.0/24 | 256 | RIPE NCC | DE | 21st Jul 2000 |
| 64.39.236.0/24 | 256 | RIPE NCC | DE | 21st Jul 2000 |
| 72.251.252.0/22 | 1k | RIPE NCC | DE | 29th Mar 2009 |
| 74.122.24.0/24 | 256 | RIPE NCC | DE | 12th Jul 2019 |
| 77.72.8.0/21 | 2k | RIPE NCC | DE | 16th Jan 2007 |
| 77.73.20.0/22 | 1k | RIPE NCC | DE | 18th Jun 2018 |
| 77.75.225.0/24 | 256 | RIPE NCC | DE | 10th Aug 2021 |
| 77.75.52.0/22 | 1k | RIPE NCC | DE | 9th Aug 2018 |
| 77.78.120.0/23 | 512 | RIPE NCC | DE | 27th Feb 2007 |
| 77.78.70.0/23 | 512 | RIPE NCC | DE | 27th Feb 2007 |
| 77.78.72.0/23 | 512 | RIPE NCC | DE | 27th Feb 2007 |
| 77.83.236.0/22 | 1k | RIPE NCC | DE | 14th Dec 2018 |
| 77.87.186.0/24 | 256 | RIPE NCC | DE | 16th Jul 2007 |
| 77.91.232.0/21 | 2k | RIPE NCC | DE | 23rd May 2007 |
| 78.108.112.0/24 | 256 | RIPE NCC | DE | 23rd Jun 2026 |
| 78.111.96.0/24 | 256 | RIPE NCC | DE | 10th Sept 2007 |
| 78.138.108.0/22 | 1k | RIPE NCC | DE | 11th Jun 2007 |
| 78.18.0.0/15 | 131k | RIPE NCC | DE | 4th Apr 2007 |
| 78.31.164.0/24 | 256 | RIPE NCC | DE | 10th Jun 2024 |
| 79.110.232.0/24 | 256 | RIPE NCC | DE | 23rd Sept 2021 |
| 79.142.36.0/24 | 256 | RIPE NCC | DE | 30th Oct 2007 |
| 79.143.140.0/22 | 1k | RIPE NCC | DE | 28th Aug 2019 |