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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Netherlands
1,625 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 46.183.19.0/24 | 256 | RIPE NCC |  NL | 21st Jan 2026 |
| 46.183.240.0/21 | 2k | RIPE NCC | NL | 14th Dec 2010 |
| 46.231.104.0/21 | 2k | RIPE NCC | NL | 7th Feb 2011 |
| 46.243.255.0/24 | 256 | RIPE NCC | NL | 28th Dec 2010 |
| 46.253.137.0/24 | 256 | RIPE NCC | NL | 22nd Sept 2021 |
| 46.254.168.0/21 | 2k | RIPE NCC | NL | 21st Dec 2010 |
| 5.104.224.0/23 | 512 | RIPE NCC | NL | 2nd Jul 2012 |
| 5.104.226.0/24 | 256 | RIPE NCC | NL | 2nd Jul 2012 |
| 5.104.227.0/24 | 256 | RIPE NCC | NL | 2nd Jul 2012 |
| 5.104.228.0/24 | 256 | RIPE NCC | NL | 2nd Jul 2012 |
| 5.104.229.0/24 | 256 | RIPE NCC | NL | 2nd Jul 2012 |
| 5.104.230.0/23 | 512 | RIPE NCC | NL | 2nd Jul 2012 |
| 5.153.0.0/18 | 16.4k | RIPE NCC | NL | 19th Jul 2012 |
| 5.180.160.0/22 | 1k | RIPE NCC | NL | 29th Mar 2019 |
| 5.253.226.0/24 | 256 | RIPE NCC | NL | 24th Jan 2022 |
| 5.255.152.0/21 | 2k | RIPE NCC | NL | 14th Sept 2012 |
| 62.122.40.0/21 | 2k | RIPE NCC | NL | 16th Feb 2009 |
| 62.140.160.0/19 | 8.2k | RIPE NCC | NL | 28th Mar 2003 |
| 62.184.0.0/16 | 65.5k | RIPE NCC | NL | 7th May 1997 |
| 62.185.0.0/16 | 65.5k | RIPE NCC | NL | 7th Aug 1998 |
| 62.186.0.0/16 | 65.5k | RIPE NCC | NL | 26th May 1999 |
| 62.187.0.0/16 | 65.5k | RIPE NCC | NL | 4th Aug 2000 |
| 62.197.136.0/21 | 2k | RIPE NCC | NL | 23rd Aug 2000 |
| 62.221.224.0/22 | 1k | RIPE NCC | NL | 10th Feb 2003 |
| 62.32.36.0/22 | 1k | RIPE NCC | NL | 12th May 2000 |
| 62.32.48.0/20 | 4.1k | RIPE NCC | NL | 12th May 2000 |
| 62.68.76.0/24 | 256 | RIPE NCC | NL | 25th Jan 2022 |
| 64.190.81.0/24 | 256 | RIPE NCC | NL | 31st May 2002 |
| 68.67.120.0/24 | 256 | RIPE NCC | NL | 22nd Jun 2009 |
| 69.5.189.0/24 | 256 | RIPE NCC | NL | 5th Oct 2026 |
| 77.72.152.0/21 | 2k | RIPE NCC | NL | 14th Feb 2007 |
| 77.87.56.0/21 | 2k | RIPE NCC | NL | 14th May 2007 |
| 77.95.224.0/24 | 256 | RIPE NCC | NL | 9th Aug 2011 |
| 77.95.225.0/24 | 256 | RIPE NCC | NL | 9th Aug 2011 |
| 77.95.226.0/23 | 512 | RIPE NCC | NL | 9th Aug 2011 |
| 77.95.228.0/24 | 256 | RIPE NCC | NL | 9th Aug 2011 |
| 77.95.230.0/24 | 256 | RIPE NCC | NL | 9th Aug 2011 |
| 77.95.231.0/24 | 256 | RIPE NCC | NL | 9th Aug 2011 |
| 78.111.84.0/22 | 1k | RIPE NCC | NL | 6th Sept 2007 |
| 78.27.0.0/18 | 16.4k | RIPE NCC | NL | 5th Sept 2007 |
| 78.31.48.0/21 | 2k | RIPE NCC | NL | 26th Sept 2007 |
| 78.41.200.0/24 | 256 | RIPE NCC | NL | 23rd Aug 2007 |
| 78.41.201.0/24 | 256 | RIPE NCC | NL | 23rd Aug 2007 |
| 78.41.202.0/24 | 256 | RIPE NCC | NL | 23rd Aug 2007 |
| 78.41.203.0/24 | 256 | RIPE NCC | NL | 23rd Aug 2007 |
| 78.41.204.0/23 | 512 | RIPE NCC | NL | 23rd Aug 2007 |
| 78.41.206.0/24 | 256 | RIPE NCC | NL | 23rd Aug 2007 |
| 79.171.192.0/21 | 2k | RIPE NCC | NL | 17th Oct 2007 |
| 80.247.196.0/22 | 1k | RIPE NCC | NL | 13th Nov 2001 |
| 80.73.136.0/21 | 2k | RIPE NCC | NL | 18th Jun 2001 |