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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 registered through RIPE NCC
25,312 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 195.35.103.0/24 | 256 | RIPE NCC |  DE | 24th Aug 2004 |
| 195.35.104.128/25 | 128 | RIPE NCC |  IT | 11th Apr 2001 |
| 195.35.104.32/27 | 32 | RIPE NCC |  AT | 24th Sept 2001 |
| 195.35.104.64/26 | 64 | RIPE NCC | IT | 11th Apr 2001 |
| 195.35.106.0/24 | 256 | RIPE NCC |  FR | 8th Sept 2000 |
| 195.35.121.0/24 | 256 | RIPE NCC |  CH | 14th Sept 2000 |
| 195.35.122.0/24 | 256 | RIPE NCC |  SI | 13th Sept 2000 |
| 195.35.124.0/23 | 512 | RIPE NCC |  GB | 8th Sept 2000 |
| 195.35.64.0/24 | 256 | RIPE NCC |  BE | 1st Sept 2000 |
| 195.35.65.0/24 | 256 | RIPE NCC |  UA | 26th Sept 2000 |
| 195.35.67.0/24 | 256 | RIPE NCC |  NL | 22nd Nov 2019 |
| 195.35.85.0/24 | 256 | RIPE NCC |  PS | 15th Oct 2009 |
| 195.35.86.0/24 | 256 | RIPE NCC |  IE | 5th Oct 2000 |
| 195.35.97.0/24 | 256 | RIPE NCC | NL | 22nd Nov 2019 |
| 195.38.16.0/23 | 512 | RIPE NCC | UA | 12th Jun 2000 |
| 195.38.18.0/24 | 256 | RIPE NCC | UA | 12th Jun 2000 |
| 195.38.31.0/24 | 256 | RIPE NCC |  PL | 25th Jul 2000 |
| 195.39.198.0/23 | 512 | RIPE NCC |  BG | 24th Mar 2003 |
| 195.39.204.0/23 | 512 | RIPE NCC | NL | 4th Nov 2019 |
| 195.39.206.0/24 | 256 | RIPE NCC |  RU | 28th Mar 2003 |
| 195.39.208.0/23 | 512 | RIPE NCC |  CZ | 1st Apr 2003 |
| 195.39.222.0/23 | 512 | RIPE NCC | DE | 10th Apr 2003 |
| 195.39.228.0/23 | 512 | RIPE NCC | RU | 15th Apr 2003 |
| 195.39.241.0/24 | 256 | RIPE NCC | UA | 22nd Apr 2003 |
| 195.39.254.0/23 | 512 | RIPE NCC | CH | 8th May 2003 |
| 195.42.110.0/23 | 512 | RIPE NCC |  SE | 27th Feb 2008 |
| 195.42.114.0/24 | 256 | RIPE NCC | DE | 28th Feb 2008 |
| 195.42.126.0/24 | 256 | RIPE NCC | UA | 29th Feb 2008 |
| 195.42.128.0/23 | 512 | RIPE NCC |  RO | 12th Feb 2008 |
| 195.42.132.0/23 | 512 | RIPE NCC | BE | 13th Feb 2008 |
| 195.42.134.0/23 | 512 | RIPE NCC | NL | 13th Feb 2008 |
| 195.42.140.0/23 | 512 | RIPE NCC | PL | 19th May 2008 |
| 195.42.144.0/23 | 512 | RIPE NCC | FR | 15th Feb 2008 |
| 195.42.156.0/24 | 256 | RIPE NCC | RU | 20th Feb 2008 |
| 195.42.252.0/22 | 1k | RIPE NCC | DE | 23rd May 2000 |
| 195.43.136.0/24 | 256 | RIPE NCC |  LT | 9th Jun 2008 |
| 195.43.145.0/24 | 256 | RIPE NCC |  NO | 11th Jun 2008 |
| 195.43.151.0/24 | 256 | RIPE NCC | SE | 13th Jun 2008 |
| 195.43.154.0/24 | 256 | RIPE NCC |  AU | 13th Jun 2008 |
| 195.43.158.0/24 | 256 | RIPE NCC | NL | 17th Jun 2008 |
| 195.43.64.0/23 | 512 | RIPE NCC | FR | 26th May 2010 |
| 195.43.88.0/23 | 512 | RIPE NCC | DE | 2nd Jun 2010 |
| 195.46.48.0/22 | 1k | RIPE NCC | GB | 14th Feb 2003 |
| 195.47.192.0/24 | 256 | RIPE NCC | RU | 28th Mar 2003 |
| 195.47.204.0/24 | 256 | RIPE NCC | RU | 29th Mar 2010 |
| 195.47.209.0/24 | 256 | RIPE NCC |  ES | 11th Apr 2003 |
| 195.47.217.0/24 | 256 | RIPE NCC | AT | 24th Apr 2003 |
| 195.47.222.0/24 | 256 | RIPE NCC |  DK | 25th Apr 2003 |
| 195.47.223.0/24 | 256 | RIPE NCC | GB | 25th Apr 2003 |
| 195.47.227.0/24 | 256 | RIPE NCC | PL | 29th Apr 2003 |