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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 192.84.245.0/24 | 256 | RIPE NCC |  DE | 12th Nov 1990 |
| 192.84.246.0/24 | 256 | RIPE NCC | DE | 12th Nov 1990 |
| 192.84.247.0/24 | 256 | RIPE NCC | DE | 12th Nov 1990 |
| 192.88.239.0/24 | 256 | RIPE NCC | DE | 17th Jan 1991 |
| 192.88.98.0/24 | 256 | RIPE NCC | DE | 12th Dec 1990 |
| 192.94.76.0/24 | 256 | RIPE NCC | DE | 22nd Feb 1991 |
| 193.0.198.0/24 | 256 | RIPE NCC | DE | 7th Dec 2020 |
| 193.0.238.0/24 | 256 | RIPE NCC | DE | 6th Aug 2002 |
| 193.0.250.0/24 | 256 | RIPE NCC | DE | 16th Aug 2002 |
| 193.100.254.0/24 | 256 | RIPE NCC | DE | 15th Feb 1994 |
| 193.100.255.0/24 | 256 | RIPE NCC | DE | 15th Feb 1994 |
| 193.101.144.0/22 | 1k | RIPE NCC | DE | 15th Feb 1994 |
| 193.101.176.0/23 | 512 | RIPE NCC | DE | 15th Feb 1994 |
| 193.101.178.0/24 | 256 | RIPE NCC | DE | 15th Feb 1994 |
| 193.101.192.0/22 | 1k | RIPE NCC | DE | 15th Feb 1994 |
| 193.101.67.0/24 | 256 | RIPE NCC | DE | 15th Feb 1994 |
| 193.102.152.0/24 | 256 | RIPE NCC | DE | 15th May 1994 |
| 193.102.226.0/24 | 256 | RIPE NCC | DE | 15th May 1994 |
| 193.102.77.0/24 | 256 | RIPE NCC | DE | 15th May 1994 |
| 193.102.98.0/24 | 256 | RIPE NCC | DE | 15th May 1994 |
| 193.103.159.0/24 | 256 | RIPE NCC | DE | 27th Sept 1994 |
| 193.103.160.0/23 | 512 | RIPE NCC | DE | 27th Sept 1994 |
| 193.103.4.0/22 | 1k | RIPE NCC | DE | 27th Sept 1994 |
| 193.103.8.0/21 | 2k | RIPE NCC | DE | 27th Sept 1994 |
| 193.104.9.0/24 | 256 | RIPE NCC | DE | 30th Sept 2009 |
| 193.105.187.0/24 | 256 | RIPE NCC | DE | 8th Jun 2020 |
| 193.106.32.0/22 | 1k | RIPE NCC | DE | 4th May 2018 |
| 193.108.138.0/23 | 512 | RIPE NCC | DE | 16th May 2001 |
| 193.108.19.0/24 | 256 | RIPE NCC | DE | 28th Mar 2001 |
| 193.108.192.0/24 | 256 | RIPE NCC | DE | 7th Jun 2001 |
| 193.109.223.0/24 | 256 | RIPE NCC | DE | 13th Jan 2009 |
| 193.109.236.0/24 | 256 | RIPE NCC | DE | 26th Nov 2001 |
| 193.110.116.0/22 | 1k | RIPE NCC | DE | 21st Dec 2001 |
| 193.111.206.0/23 | 512 | RIPE NCC | DE | 5th Jun 2002 |
| 193.111.44.0/24 | 256 | RIPE NCC | DE | 12th Mar 2002 |
| 193.138.112.0/24 | 256 | RIPE NCC | DE | 13th Mar 2003 |
| 193.138.16.0/21 | 2k | RIPE NCC | DE | 22nd Sept 1997 |
| 193.138.180.0/22 | 1k | RIPE NCC | DE | 26th Nov 2004 |
| 193.138.26.0/24 | 256 | RIPE NCC | DE | 22nd Sept 1997 |
| 193.138.31.0/24 | 256 | RIPE NCC | DE | 4th Apr 2005 |
| 193.138.66.0/24 | 256 | RIPE NCC | DE | 7th Feb 2003 |
| 193.138.68.0/24 | 256 | RIPE NCC | DE | 7th Feb 2003 |
| 193.138.83.0/24 | 256 | RIPE NCC | DE | 17th Feb 2003 |
| 193.138.96.0/24 | 256 | RIPE NCC | DE | 25th Feb 2003 |
| 193.143.224.0/24 | 256 | RIPE NCC | DE | 18th Nov 2019 |
| 193.148.68.0/22 | 1k | RIPE NCC | DE | 24th Oct 2018 |
| 193.148.72.0/22 | 1k | RIPE NCC | DE | 24th Oct 2018 |
| 193.151.248.0/22 | 1k | RIPE NCC | DE | 29th Mar 2005 |
| 193.151.44.0/23 | 512 | RIPE NCC | DE | 16th Apr 2004 |
| 193.16.1.0/24 | 256 | RIPE NCC | DE | 29th Jul 1992 |