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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 193.242.64.0/20 | 4.1k | RIPE NCC |  FR | 26th Jul 1993 |
| 193.27.4.0/24 | 256 | RIPE NCC | FR | 14th Apr 2004 |
| 193.29.136.0/23 | 512 | RIPE NCC | FR | 28th Jul 1993 |
| 193.29.138.0/24 | 256 | RIPE NCC | FR | 28th Jul 1993 |
| 193.29.140.0/22 | 1k | RIPE NCC | FR | 28th Jul 1993 |
| 193.3.190.0/24 | 256 | RIPE NCC | FR | 28th Oct 2021 |
| 193.30.144.0/20 | 4.1k | RIPE NCC | FR | 21st Sept 1993 |
| 193.33.12.0/23 | 512 | RIPE NCC | FR | 19th Jan 2007 |
| 193.34.130.0/23 | 512 | RIPE NCC | FR | 12th Oct 2006 |
| 193.34.197.128/25 | 128 | RIPE NCC | FR | 28th Aug 2012 |
| 193.36.2.0/24 | 256 | RIPE NCC | FR | 12th Feb 1993 |
| 193.36.45.0/24 | 256 | RIPE NCC | FR | 5th Mar 2009 |
| 193.41.71.0/24 | 256 | RIPE NCC | FR | 30th Oct 2000 |
| 193.42.10.0/24 | 256 | RIPE NCC | FR | 9th Sept 1993 |
| 193.42.8.0/23 | 512 | RIPE NCC | FR | 9th Sept 1993 |
| 193.43.0.0/26 | 64 | RIPE NCC | FR | 28th Aug 2012 |
| 193.47.192.0/24 | 256 | RIPE NCC | FR | 1st Sept 1993 |
| 193.47.80.0/24 | 256 | RIPE NCC | FR | 13th Jul 2005 |
| 193.53.38.0/24 | 256 | RIPE NCC | FR | 18th Apr 1994 |
| 193.56.100.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.101.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.102.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.115.0/24 | 256 | RIPE NCC | FR | 10th Jun 1994 |
| 193.56.119.0/24 | 256 | RIPE NCC | FR | 25th Mar 1994 |
| 193.56.128.0/24 | 256 | RIPE NCC | FR | 3rd Nov 1992 |
| 193.56.187.0/24 | 256 | RIPE NCC | FR | 19th Apr 1994 |
| 193.56.189.0/24 | 256 | RIPE NCC | FR | 19th Apr 1994 |
| 193.56.191.0/24 | 256 | RIPE NCC | FR | 19th Apr 1994 |
| 193.56.210.0/24 | 256 | RIPE NCC | FR | 18th Nov 1993 |
| 193.56.225.0/24 | 256 | RIPE NCC | FR | 26th Apr 1994 |
| 193.56.228.0/24 | 256 | RIPE NCC | FR | 25th May 1993 |
| 193.56.229.0/24 | 256 | RIPE NCC | FR | 25th May 1993 |
| 193.56.34.0/24 | 256 | RIPE NCC | FR | 27th Aug 1992 |
| 193.56.42.0/24 | 256 | RIPE NCC | FR | 27th Aug 1992 |
| 193.56.47.0/24 | 256 | RIPE NCC | FR | 10th Jun 1994 |
| 193.56.48.0/22 | 1k | RIPE NCC | FR | 18th Oct 1993 |
| 193.56.52.0/24 | 256 | RIPE NCC | FR | 18th Oct 1993 |
| 193.56.60.0/24 | 256 | RIPE NCC | FR | 7th Apr 1993 |
| 193.56.85.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.86.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.88.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.89.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.90.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.91.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.92.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.93.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.94.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.95.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.96.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |
| 193.56.97.0/24 | 256 | RIPE NCC | FR | 12th Oct 1992 |