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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 193.202.24.0/22 | 1k | RIPE NCC |  DE | 2nd Aug 1993 |
| 193.202.28.0/23 | 512 | RIPE NCC | DE | 2nd Aug 1993 |
| 193.202.30.0/24 | 256 | RIPE NCC | DE | 2nd Aug 1993 |
| 193.218.184.0/23 | 512 | RIPE NCC | DE | 1st Apr 2010 |
| 193.218.73.0/24 | 256 | RIPE NCC | DE | 1st Dec 1994 |
| 193.219.113.0/24 | 256 | RIPE NCC | DE | 29th Sept 2006 |
| 193.22.109.0/24 | 256 | RIPE NCC | DE | 29th Jul 1992 |
| 193.22.116.0/23 | 512 | RIPE NCC | DE | 29th Jul 1992 |
| 193.22.118.0/24 | 256 | RIPE NCC | DE | 29th Jul 1992 |
| 193.22.160.0/24 | 256 | RIPE NCC | DE | 24th Oct 2025 |
| 193.22.176.0/22 | 1k | RIPE NCC | DE | 29th Jul 1992 |
| 193.22.184.0/21 | 2k | RIPE NCC | DE | 29th Jul 1992 |
| 193.22.232.0/22 | 1k | RIPE NCC | DE | 7th Sept 2018 |
| 193.22.236.0/22 | 1k | RIPE NCC | DE | 7th Sept 2018 |
| 193.22.24.0/22 | 1k | RIPE NCC | DE | 25th Apr 2018 |
| 193.227.254.0/23 | 512 | RIPE NCC | DE | 18th Oct 2005 |
| 193.228.187.0/24 | 256 | RIPE NCC | DE | 18th Sept 1995 |
| 193.228.240.0/20 | 4.1k | RIPE NCC | DE | 19th Dec 1995 |
| 193.23.162.0/24 | 256 | RIPE NCC | DE | 29th Jul 1992 |
| 193.23.232.0/21 | 2k | RIPE NCC | DE | 29th Jul 1992 |
| 193.23.240.0/23 | 512 | RIPE NCC | DE | 29th Jul 1992 |
| 193.23.252.0/24 | 256 | RIPE NCC | DE | 29th Jul 1992 |
| 193.23.8.0/21 | 2k | RIPE NCC | DE | 29th Jul 1992 |
| 193.239.156.0/23 | 512 | RIPE NCC | DE | 10th Jun 2005 |
| 193.24.224.0/22 | 1k | RIPE NCC | DE | 16th Feb 2004 |
| 193.24.32.0/22 | 1k | RIPE NCC | DE | 22nd Jan 1993 |
| 193.243.134.0/23 | 512 | RIPE NCC | DE | 17th Oct 2019 |
| 193.25.128.0/19 | 8.2k | RIPE NCC | DE | 11th Feb 1993 |
| 193.25.170.0/23 | 512 | RIPE NCC | DE | 28th Nov 2011 |
| 193.25.201.0/24 | 256 | RIPE NCC | DE | 10th Jan 2020 |
| 193.25.254.0/24 | 256 | RIPE NCC | DE | 11th Feb 1993 |
| 193.254.19.0/24 | 256 | RIPE NCC | DE | 23rd Dec 1998 |
| 193.254.23.0/25 | 128 | RIPE NCC | DE | 23rd Dec 1998 |
| 193.26.144.0/23 | 512 | RIPE NCC | DE | 11th Mar 1993 |
| 193.26.160.0/19 | 8.2k | RIPE NCC | DE | 11th Mar 1993 |
| 193.26.215.0/24 | 256 | RIPE NCC | DE | 13th Nov 2019 |
| 193.26.219.0/24 | 256 | RIPE NCC | DE | 13th Nov 2019 |
| 193.26.240.0/23 | 512 | RIPE NCC | DE | 11th Mar 1993 |
| 193.26.244.0/23 | 512 | RIPE NCC | DE | 11th Mar 1993 |
| 193.26.5.0/24 | 256 | RIPE NCC | DE | 13th Sept 2004 |
| 193.27.8.0/24 | 256 | RIPE NCC | DE | 13th Nov 2019 |
| 193.28.107.0/24 | 256 | RIPE NCC | DE | 1st Jun 1993 |
| 193.28.108.0/22 | 1k | RIPE NCC | DE | 1st Jun 1993 |
| 193.28.112.0/20 | 4.1k | RIPE NCC | DE | 1st Jun 1993 |
| 193.28.13.0/24 | 256 | RIPE NCC | DE | 13th Sept 2005 |
| 193.28.228.0/24 | 256 | RIPE NCC | DE | 31st Aug 2011 |
| 193.29.0.0/24 | 256 | RIPE NCC | DE | 28th Jul 1993 |
| 193.29.100.0/22 | 1k | RIPE NCC | DE | 10th Sept 2018 |
| 193.29.130.0/23 | 512 | RIPE NCC | DE | 28th Jul 1993 |
| 193.29.192.0/21 | 2k | RIPE NCC | DE | 28th Jun 2010 |