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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through RIPE NCC, largest first.
Unannounced blocks in Russia
2,050 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 194.85.177.0/24 | 256 | RIPE NCC |  RU | 19th Aug 1994 |
| 194.85.185.0/24 | 256 | RIPE NCC | RU | 19th Aug 1994 |
| 194.85.186.0/23 | 512 | RIPE NCC | RU | 19th Aug 1994 |
| 194.85.188.0/24 | 256 | RIPE NCC | RU | 19th Aug 1994 |
| 194.85.189.0/24 | 256 | RIPE NCC | RU | 19th Aug 1994 |
| 194.85.190.0/23 | 512 | RIPE NCC | RU | 19th Aug 1994 |
| 194.85.240.0/21 | 2k | RIPE NCC | RU | 19th Aug 1994 |
| 194.85.3.0/24 | 256 | RIPE NCC | RU | 19th Aug 1994 |
| 194.85.72.0/22 | 1k | RIPE NCC | RU | 19th Aug 1994 |
| 195.130.216.0/24 | 256 | RIPE NCC | RU | 21st Jan 2009 |
| 195.133.56.0/23 | 512 | RIPE NCC | RU | 15th Apr 1997 |
| 195.133.60.0/23 | 512 | RIPE NCC | RU | 15th Apr 1997 |
| 195.135.204.0/22 | 1k | RIPE NCC | RU | 10th Jul 2003 |
| 195.14.12.0/24 | 256 | RIPE NCC | RU | 28th Nov 2005 |
| 195.140.216.0/24 | 256 | RIPE NCC | RU | 22nd Jun 2026 |
| 195.144.29.0/24 | 256 | RIPE NCC | RU | 17th Nov 2005 |
| 195.170.212.0/22 | 1k | RIPE NCC | RU | 6th May 1997 |
| 195.177.204.0/23 | 512 | RIPE NCC | RU | 8th Oct 2003 |
| 195.178.16.0/24 | 256 | RIPE NCC | RU | 23rd Oct 2009 |
| 195.178.20.0/23 | 512 | RIPE NCC | RU | 23rd Oct 2009 |
| 195.19.10.0/23 | 512 | RIPE NCC | RU | 29th Oct 1996 |
| 195.19.14.0/23 | 512 | RIPE NCC | RU | 29th Oct 1996 |
| 195.191.194.0/23 | 512 | RIPE NCC | RU | 2nd Mar 2010 |
| 195.191.50.0/23 | 512 | RIPE NCC | RU | 23rd Dec 2009 |
| 195.191.78.0/23 | 512 | RIPE NCC | RU | 5th Jan 2011 |
| 195.2.194.0/23 | 512 | RIPE NCC | RU | 8th Dec 2008 |
| 195.200.203.0/24 | 256 | RIPE NCC | RU | 7th Aug 2006 |
| 195.208.20.0/23 | 512 | RIPE NCC | RU | 19th Apr 1996 |
| 195.208.220.0/23 | 512 | RIPE NCC | RU | 19th Apr 1996 |
| 195.209.137.0/24 | 256 | RIPE NCC | RU | 19th Jul 1996 |
| 195.209.152.0/21 | 2k | RIPE NCC | RU | 19th Jul 1996 |
| 195.210.30.0/23 | 512 | RIPE NCC | RU | 14th May 2010 |
| 195.211.160.0/22 | 1k | RIPE NCC | RU | 20th Oct 2009 |
| 195.211.42.0/24 | 256 | RIPE NCC | RU | 14th Sept 2009 |
| 195.214.236.0/22 | 1k | RIPE NCC | RU | 30th Jun 2006 |
| 195.234.154.0/24 | 256 | RIPE NCC | RU | 27th Mar 2023 |
| 195.234.96.0/24 | 256 | RIPE NCC | RU | 23rd Feb 2009 |
| 195.234.97.0/24 | 256 | RIPE NCC | RU | 23rd Feb 2009 |
| 195.238.239.0/24 | 256 | RIPE NCC | RU | 10th Mar 2005 |
| 195.246.248.0/23 | 512 | RIPE NCC | RU | 7th Nov 2019 |
| 195.248.81.0/24 | 256 | RIPE NCC | RU | 24th Aug 2022 |
| 195.248.94.0/24 | 256 | RIPE NCC | RU | 13th Jan 2009 |
| 195.39.206.0/24 | 256 | RIPE NCC | RU | 28th Mar 2003 |
| 195.39.228.0/23 | 512 | RIPE NCC | RU | 15th Apr 2003 |
| 195.42.156.0/24 | 256 | RIPE NCC | RU | 20th Feb 2008 |
| 195.47.192.0/24 | 256 | RIPE NCC | RU | 28th Mar 2003 |
| 195.47.204.0/24 | 256 | RIPE NCC | RU | 29th Mar 2010 |
| 195.49.192.0/21 | 2k | RIPE NCC | RU | 12th Dec 2002 |
| 195.5.105.0/24 | 256 | RIPE NCC | RU | 17th Oct 2023 |
| 195.5.178.0/24 | 256 | RIPE NCC | RU | 16th Apr 2008 |