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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Netherlands
1,668 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 192.52.223.0/24 | 256 | RIPE NCC |  NL | 10th May 1989 |
| 192.55.105.0/24 | 256 | RIPE NCC | NL | 19th Jul 1989 |
| 192.55.115.0/24 | 256 | RIPE NCC | NL | 28th Jul 1989 |
| 192.55.129.0/24 | 256 | RIPE NCC | NL | 3rd Aug 1989 |
| 192.58.228.0/23 | 512 | RIPE NCC | NL | 25th Oct 1989 |
| 192.65.51.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.52.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.53.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.54.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.55.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.56.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.57.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.58.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.59.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.60.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.61.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.62.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.63.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.64.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.65.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.66.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.67.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.68.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.69.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.70.0/24 | 256 | RIPE NCC | NL | 3rd Nov 1989 |
| 192.65.96.0/24 | 256 | RIPE NCC | NL | 1st Sept 1993 |
| 192.67.220.0/24 | 256 | RIPE NCC | NL | 7th Feb 1990 |
| 192.67.221.0/24 | 256 | RIPE NCC | NL | 7th Feb 1990 |
| 192.68.136.0/24 | 256 | RIPE NCC | NL | 7th Mar 1990 |
| 192.68.182.0/24 | 256 | RIPE NCC | NL | 16th Mar 1990 |
| 192.68.250.0/24 | 256 | RIPE NCC | NL | 4th Jun 1990 |
| 192.68.251.0/24 | 256 | RIPE NCC | NL | 4th Jun 1990 |
| 192.68.252.0/24 | 256 | RIPE NCC | NL | 4th Jun 1990 |
| 192.68.31.0/24 | 256 | RIPE NCC | NL | 23rd Jan 1990 |
| 192.68.32.0/21 | 2k | RIPE NCC | NL | 23rd Jan 1990 |
| 192.68.48.0/23 | 512 | RIPE NCC | NL | 23rd Jan 1990 |
| 192.68.50.0/24 | 256 | RIPE NCC | NL | 23rd Jan 1990 |
| 192.84.30.0/24 | 256 | RIPE NCC | NL | 23rd Oct 1990 |
| 192.92.108.0/24 | 256 | RIPE NCC | NL | 25th Jan 1991 |
| 192.92.127.0/24 | 256 | RIPE NCC | NL | 5th Feb 1991 |
| 192.92.131.0/24 | 256 | RIPE NCC | NL | 5th Feb 1991 |
| 192.92.132.0/24 | 256 | RIPE NCC | NL | 5th Feb 1991 |
| 192.92.134.0/24 | 256 | RIPE NCC | NL | 9th Jan 1992 |
| 192.92.136.0/24 | 256 | RIPE NCC | NL | 5th Feb 1991 |
| 192.92.137.0/24 | 256 | RIPE NCC | NL | 5th Feb 1991 |
| 193.104.142.0/24 | 256 | RIPE NCC | NL | 15th Nov 2019 |
| 193.104.153.0/24 | 256 | RIPE NCC | NL | 15th Nov 2019 |
| 193.104.176.0/24 | 256 | RIPE NCC | NL | 15th Nov 2019 |
| 193.104.186.0/24 | 256 | RIPE NCC | NL | 7th Dec 2009 |
| 193.104.190.0/24 | 256 | RIPE NCC | NL | 15th Nov 2019 |