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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
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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 |
|---|---|---|---|---|
| 193.104.255.0/24 | 256 | RIPE NCC |  NL | 4th Jan 2010 |
| 193.104.6.0/24 | 256 | RIPE NCC | NL | 30th Sept 2009 |
| 193.105.101.0/24 | 256 | RIPE NCC | NL | 5th Feb 2010 |
| 193.105.183.0/24 | 256 | RIPE NCC | NL | 8th Mar 2010 |
| 193.108.225.0/24 | 256 | RIPE NCC | NL | 12th Dec 2024 |
| 193.108.98.0/23 | 512 | RIPE NCC | NL | 25th Apr 2001 |
| 193.109.64.0/23 | 512 | RIPE NCC | NL | 10th Oct 2019 |
| 193.110.148.0/24 | 256 | RIPE NCC | NL | 15th Nov 2019 |
| 193.110.158.0/24 | 256 | RIPE NCC | NL | 15th Nov 2019 |
| 193.111.81.0/24 | 256 | RIPE NCC | NL | 22nd Mar 2002 |
| 193.138.100.0/24 | 256 | RIPE NCC | NL | 27th Feb 2003 |
| 193.138.109.0/24 | 256 | RIPE NCC | NL | 12th Mar 2003 |
| 193.142.215.0/24 | 256 | RIPE NCC | NL | 23rd Mar 2007 |
| 193.143.20.0/22 | 1k | RIPE NCC | NL | 7th May 2018 |
| 193.149.131.0/24 | 256 | RIPE NCC | NL | 24th Jan 1996 |
| 193.149.132.0/23 | 512 | RIPE NCC | NL | 24th Jan 1996 |
| 193.149.143.0/24 | 256 | RIPE NCC | NL | 24th Jan 1996 |
| 193.149.144.0/24 | 256 | RIPE NCC | NL | 24th Jan 1996 |
| 193.149.157.0/24 | 256 | RIPE NCC | NL | 24th Jan 1996 |
| 193.149.181.0/24 | 256 | RIPE NCC | NL | 24th Jan 1996 |
| 193.149.208.0/21 | 2k | RIPE NCC | NL | 10th Jun 1998 |
| 193.149.216.0/24 | 256 | RIPE NCC | NL | 10th Jun 1998 |
| 193.149.218.0/23 | 512 | RIPE NCC | NL | 10th Jun 1998 |
| 193.149.220.0/22 | 1k | RIPE NCC | NL | 10th Jun 1998 |
| 193.149.224.0/24 | 256 | RIPE NCC | NL | 10th Jun 1998 |
| 193.149.226.0/23 | 512 | RIPE NCC | NL | 10th Jun 1998 |
| 193.149.228.0/22 | 1k | RIPE NCC | NL | 10th Jun 1998 |
| 193.149.232.0/21 | 2k | RIPE NCC | NL | 10th Jun 1998 |
| 193.164.192.0/23 | 512 | RIPE NCC | NL | 20th Aug 2009 |
| 193.169.234.0/23 | 512 | RIPE NCC | NL | 31st Mar 2011 |
| 193.176.130.0/24 | 256 | RIPE NCC | NL | 3rd Mar 1995 |
| 193.176.131.0/24 | 256 | RIPE NCC | NL | 3rd Mar 1995 |
| 193.176.148.0/22 | 1k | RIPE NCC | NL | 14th Apr 1993 |
| 193.176.152.0/24 | 256 | RIPE NCC | NL | 14th Apr 1993 |
| 193.176.218.0/23 | 512 | RIPE NCC | NL | 27th Jun 1993 |
| 193.176.226.0/24 | 256 | RIPE NCC | NL | 3rd May 1993 |
| 193.176.234.0/24 | 256 | RIPE NCC | NL | 13th Jul 1993 |
| 193.176.255.0/24 | 256 | RIPE NCC | NL | 28th Nov 1994 |
| 193.176.34.0/24 | 256 | RIPE NCC | NL | 6th Aug 2025 |
| 193.176.46.0/24 | 256 | RIPE NCC | NL | 18th Dec 1994 |
| 193.176.48.0/22 | 1k | RIPE NCC | NL | 14th Jun 1994 |
| 193.176.52.0/23 | 512 | RIPE NCC | NL | 14th Jun 1994 |
| 193.176.63.0/24 | 256 | RIPE NCC | NL | 8th Dec 1993 |
| 193.177.1.0/24 | 256 | RIPE NCC | NL | 3rd May 1993 |
| 193.177.152.0/21 | 2k | RIPE NCC | NL | 27th Jun 1993 |
| 193.177.16.0/20 | 4.1k | RIPE NCC | NL | 3rd May 1993 |
| 193.177.167.0/24 | 256 | RIPE NCC | NL | 9th Aug 1995 |
| 193.177.183.0/24 | 256 | RIPE NCC | NL | 8th Dec 1993 |
| 193.177.184.0/22 | 1k | RIPE NCC | NL | 4th Aug 1993 |
| 193.177.2.0/23 | 512 | RIPE NCC | NL | 3rd May 1993 |