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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 194.99.90.0/24 | 256 | RIPE NCC |  DE | 10th Nov 1994 |
| 194.99.98.0/23 | 512 | RIPE NCC | DE | 10th Nov 1994 |
| 195.10.194.0/24 | 256 | RIPE NCC |  IL | 19th Oct 2005 |
| 195.10.211.0/24 | 256 | RIPE NCC |  SE | 28th Oct 2005 |
| 195.10.217.0/24 | 256 | RIPE NCC |  MT | 11th Aug 2010 |
| 195.10.228.0/22 | 1k | RIPE NCC |  NL | 14th Nov 1997 |
| 195.10.234.0/23 | 512 | RIPE NCC |  GB | 14th Nov 1997 |
| 195.10.236.0/22 | 1k | RIPE NCC | GB | 14th Nov 1997 |
| 195.10.240.0/20 | 4.1k | RIPE NCC | GB | 14th Nov 1997 |
| 195.106.0.0/16 | 65.5k | RIPE NCC | GB | 11th Apr 1997 |
| 195.110.14.0/23 | 512 | RIPE NCC | DE | 5th Jan 2007 |
| 195.110.22.0/23 | 512 | RIPE NCC |  NO | 5th Nov 2019 |
| 195.110.30.0/23 | 512 | RIPE NCC |  FR | 24th Apr 2007 |
| 195.110.36.0/23 | 512 | RIPE NCC | GB | 10th Sept 2009 |
| 195.112.160.0/19 | 8.2k | RIPE NCC | DE | 26th Jan 1998 |
| 195.118.0.0/16 | 65.5k | RIPE NCC | NL | 21st Aug 1996 |
| 195.12.39.0/24 | 256 | RIPE NCC |  CZ | 10th Jan 2020 |
| 195.123.128.0/19 | 8.2k | RIPE NCC |  ES | 4th Apr 1997 |
| 195.123.248.0/22 | 1k | RIPE NCC |  UA | 4th Apr 1997 |
| 195.123.64.0/19 | 8.2k | RIPE NCC | ES | 4th Apr 1997 |
| 195.128.112.0/21 | 2k | RIPE NCC |  PL | 25th Jul 2003 |
| 195.128.129.0/24 | 256 | RIPE NCC | NL | 4th Apr 2011 |
| 195.128.131.0/24 | 256 | RIPE NCC |  IT | 11th Dec 2024 |
| 195.128.155.0/24 | 256 | RIPE NCC | CZ | 11th Apr 2011 |
| 195.128.156.0/24 | 256 | RIPE NCC | GB | 11th Apr 2011 |
| 195.128.164.0/23 | 512 | RIPE NCC |  CH | 22nd Sept 2006 |
| 195.128.176.0/23 | 512 | RIPE NCC | IL | 15th Apr 2004 |
| 195.128.230.0/24 | 256 | RIPE NCC |  BE | 17th May 2004 |
| 195.128.236.0/23 | 512 | RIPE NCC | NL | 18th May 2004 |
| 195.128.252.0/23 | 512 | RIPE NCC | UA | 24th May 2004 |
| 195.13.32.0/23 | 512 | RIPE NCC | FR | 7th Feb 2001 |
| 195.13.35.0/24 | 256 | RIPE NCC | IT | 4th May 2026 |
| 195.13.36.0/24 | 256 | RIPE NCC |  FI | 4th May 2026 |
| 195.13.37.128/26 | 64 | RIPE NCC | FR | 6th Feb 2026 |
| 195.13.37.192/26 | 64 | RIPE NCC | GB | 20th Feb 2026 |
| 195.13.44.0/23 | 512 | RIPE NCC |  US | 1st Nov 2019 |
| 195.13.46.0/25 | 128 | RIPE NCC | PL | 16th Jan 2001 |
| 195.13.46.128/25 | 128 | RIPE NCC |  DK | 19th Nov 2004 |
| 195.13.47.0/24 | 256 | RIPE NCC | FR | 22nd Nov 2019 |
| 195.130.193.0/24 | 256 | RIPE NCC | DK | 8th Jan 2009 |
| 195.130.204.0/24 | 256 | RIPE NCC |  AT | 25th Nov 2019 |
| 195.130.206.0/24 | 256 | RIPE NCC | AT | 25th Nov 2019 |
| 195.130.211.0/24 | 256 | RIPE NCC |  IS | 20th Jan 2009 |
| 195.130.216.0/24 | 256 | RIPE NCC |  RU | 21st Jan 2009 |
| 195.130.220.0/24 | 256 | RIPE NCC | CZ | 23rd Jun 2025 |
| 195.133.160.0/19 | 8.2k | RIPE NCC | ES | 15th Apr 1997 |
| 195.133.56.0/23 | 512 | RIPE NCC | RU | 15th Apr 1997 |
| 195.133.60.0/23 | 512 | RIPE NCC | RU | 15th Apr 1997 |
| 195.133.96.0/19 | 8.2k | RIPE NCC | ES | 15th Apr 1997 |
| 195.134.184.0/21 | 2k | RIPE NCC |  SA | 8th Mar 2012 |