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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 France
1,379 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 192.93.224.0/24 | 256 | RIPE NCC |  FR | 1st Jan 1984 |
| 192.93.227.0/24 | 256 | RIPE NCC | FR | 1st Jan 1984 |
| 192.93.228.0/22 | 1k | RIPE NCC | FR | 1st Jan 1984 |
| 192.93.232.0/21 | 2k | RIPE NCC | FR | 1st Jan 1984 |
| 192.93.64.0/19 | 8.2k | RIPE NCC | FR | 1st Jan 1984 |
| 192.94.175.0/24 | 256 | RIPE NCC | FR | 28th Feb 1991 |
| 192.94.176.0/20 | 4.1k | RIPE NCC | FR | 28th Feb 1991 |
| 192.94.192.0/21 | 2k | RIPE NCC | FR | 28th Feb 1991 |
| 193.104.19.0/24 | 256 | RIPE NCC | FR | 2nd Oct 2009 |
| 193.105.186.0/24 | 256 | RIPE NCC | FR | 9th Mar 2010 |
| 193.105.232.0/24 | 256 | RIPE NCC | FR | 22nd Mar 2010 |
| 193.105.90.0/24 | 256 | RIPE NCC | FR | 17th Jun 2009 |
| 193.109.117.0/24 | 256 | RIPE NCC | FR | 19th Sept 2001 |
| 193.109.83.0/24 | 256 | RIPE NCC | FR | 17th Aug 2001 |
| 193.111.14.0/23 | 512 | RIPE NCC | FR | 19th Feb 2002 |
| 193.139.0.0/16 | 65.5k | RIPE NCC | FR | 7th Oct 1992 |
| 193.142.28.0/23 | 512 | RIPE NCC | FR | 11th Oct 2019 |
| 193.142.48.0/23 | 512 | RIPE NCC | FR | 11th Oct 2019 |
| 193.148.6.0/23 | 512 | RIPE NCC | FR | 5th Dec 2011 |
| 193.150.169.0/24 | 256 | RIPE NCC | FR | 28th Jun 2000 |
| 193.160.0.0/24 | 256 | RIPE NCC | FR | 13th Jul 2010 |
| 193.160.103.0/24 | 256 | RIPE NCC | FR | 15th Mar 1995 |
| 193.163.183.0/24 | 256 | RIPE NCC | FR | 22nd Feb 2021 |
| 193.164.232.0/26 | 64 | RIPE NCC | FR | 26th Jun 2000 |
| 193.164.232.192/27 | 32 | RIPE NCC | FR | 9th Mar 2006 |
| 193.164.232.64/27 | 32 | RIPE NCC | FR | 26th Jun 2000 |
| 193.177.0.0/24 | 256 | RIPE NCC | FR | 18th Nov 2019 |
| 193.178.140.0/24 | 256 | RIPE NCC | FR | 12th Feb 2001 |
| 193.186.192.0/22 | 1k | RIPE NCC | FR | 17th Sept 2018 |
| 193.188.134.144/28 | 16 | RIPE NCC | FR | 13th Dec 2011 |
| 193.19.32.0/19 | 8.2k | RIPE NCC | FR | 31st May 1994 |
| 193.200.58.0/23 | 512 | RIPE NCC | FR | 23rd Mar 2007 |
| 193.201.103.0/24 | 256 | RIPE NCC | FR | 19th Jun 2002 |
| 193.201.146.0/25 | 128 | RIPE NCC | FR | 23rd Dec 2003 |
| 193.201.157.192/26 | 64 | RIPE NCC | FR | 26th Feb 2025 |
| 193.201.196.0/24 | 256 | RIPE NCC | FR | 26th May 2026 |
| 193.202.77.0/24 | 256 | RIPE NCC | FR | 9th Sept 1993 |
| 193.202.78.0/23 | 512 | RIPE NCC | FR | 9th Sept 1993 |
| 193.203.212.0/23 | 512 | RIPE NCC | FR | 8th Nov 2005 |
| 193.218.82.0/23 | 512 | RIPE NCC | FR | 16th Oct 2019 |
| 193.22.107.0/24 | 256 | RIPE NCC | FR | 10th Nov 2003 |
| 193.22.226.0/23 | 512 | RIPE NCC | FR | 7th Sept 2018 |
| 193.22.92.0/24 | 256 | RIPE NCC | FR | 22nd Jun 2004 |
| 193.223.176.0/20 | 4.1k | RIPE NCC | FR | 1st Sept 1993 |
| 193.227.136.0/21 | 2k | RIPE NCC | FR | 5th Aug 1996 |
| 193.228.138.0/24 | 256 | RIPE NCC | FR | 12th May 2021 |
| 193.228.144.0/24 | 256 | RIPE NCC | FR | 16th Jun 2025 |
| 193.228.147.0/24 | 256 | RIPE NCC | FR | 17th Jul 2007 |
| 193.242.1.0/24 | 256 | RIPE NCC | FR | 26th Jul 1993 |
| 193.242.2.0/23 | 512 | RIPE NCC | FR | 26th Jul 1993 |