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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
1,704 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 188.93.68.0/22 | 1k | RIPE NCC |  NL | 5th Feb 2019 |
| 190.211.144.0/24 | 256 | RIPE NCC | NL | 22nd Oct 2010 |
| 192.101.114.0/24 | 256 | RIPE NCC | NL | 27th Jun 1991 |
| 192.101.81.0/24 | 256 | RIPE NCC | NL | 21st Jun 1991 |
| 192.101.82.0/24 | 256 | RIPE NCC | NL | 21st Jun 1991 |
| 192.101.83.0/24 | 256 | RIPE NCC | NL | 21st Jun 1991 |
| 192.101.88.0/24 | 256 | RIPE NCC | NL | 21st Jun 1991 |
| 192.101.90.0/24 | 256 | RIPE NCC | NL | 21st Jun 1991 |
| 192.104.142.0/24 | 256 | RIPE NCC | NL | 23rd May 1991 |
| 192.104.55.0/24 | 256 | RIPE NCC | NL | 30th Apr 1991 |
| 192.104.56.0/24 | 256 | RIPE NCC | NL | 30th Apr 1991 |
| 192.109.128.0/24 | 256 | RIPE NCC | NL | 1st Sept 1993 |
| 192.132.245.0/24 | 256 | RIPE NCC | NL | 19th Nov 1991 |
| 192.133.53.0/24 | 256 | RIPE NCC | NL | 7th Nov 1991 |
| 192.136.23.0/24 | 256 | RIPE NCC | NL | 19th Dec 1991 |
| 192.136.51.0/24 | 256 | RIPE NCC | NL | 30th Dec 1991 |
| 192.148.192.0/24 | 256 | RIPE NCC | NL | 2nd Mar 1992 |
| 192.148.200.0/24 | 256 | RIPE NCC | NL | 3rd Mar 1992 |
| 192.149.118.0/24 | 256 | RIPE NCC | NL | 10th Mar 1992 |
| 192.149.227.0/24 | 256 | RIPE NCC | NL | 23rd Mar 1992 |
| 192.152.49.0/24 | 256 | RIPE NCC | NL | 1st Sept 1993 |
| 192.152.50.0/24 | 256 | RIPE NCC | NL | 1st Sept 1993 |
| 192.152.51.0/24 | 256 | RIPE NCC | NL | 1st Sept 1993 |
| 192.159.105.0/24 | 256 | RIPE NCC | NL | 6th May 1992 |
| 192.159.16.0/21 | 2k | APNIC | NL | 20th Apr 1992 |
| 192.16.183.0/24 | 256 | RIPE NCC | NL | 7th Nov 1986 |
| 192.16.187.0/24 | 256 | RIPE NCC | NL | 7th Nov 1986 |
| 192.16.193.0/24 | 256 | RIPE NCC | NL | 7th Nov 1986 |
| 192.16.198.0/24 | 256 | RIPE NCC | NL | 7th Nov 1986 |
| 192.160.106.0/24 | 256 | RIPE NCC | NL | 15th Apr 1993 |
| 192.160.152.0/24 | 256 | RIPE NCC | NL | 27th May 1992 |
| 192.189.73.0/24 | 256 | RIPE NCC | NL | 10th Jul 1992 |
| 192.195.183.0/24 | 256 | RIPE NCC | NL | 31st Jul 1992 |
| 192.207.31.0/24 | 256 | RIPE NCC | NL | 18th Aug 1992 |
| 192.26.154.0/23 | 512 | RIPE NCC | NL | 2nd Feb 1989 |
| 192.26.160.0/21 | 2k | RIPE NCC | NL | 2nd Feb 1989 |
| 192.26.172.0/23 | 512 | RIPE NCC | NL | 2nd Feb 1989 |
| 192.31.166.0/24 | 256 | RIPE NCC | NL | 7th Aug 1987 |
| 192.31.167.0/24 | 256 | RIPE NCC | NL | 7th Aug 1987 |
| 192.31.168.0/23 | 512 | RIPE NCC | NL | 7th Aug 1987 |
| 192.31.170.0/24 | 256 | RIPE NCC | NL | 7th Aug 1987 |
| 192.31.171.0/24 | 256 | RIPE NCC | NL | 7th Aug 1987 |
| 192.33.131.0/24 | 256 | RIPE NCC | NL | 2nd Dec 1987 |
| 192.33.233.0/24 | 256 | RIPE NCC | NL | 17th May 1990 |
| 192.34.116.0/24 | 256 | RIPE NCC | NL | 4th Mar 1994 |
| 192.35.130.0/24 | 256 | RIPE NCC | NL | 15th Apr 1993 |
| 192.35.131.0/24 | 256 | RIPE NCC | NL | 7th Apr 1988 |
| 192.35.132.0/24 | 256 | RIPE NCC | NL | 15th Apr 1993 |
| 192.35.183.0/24 | 256 | RIPE NCC | NL | 2nd May 1988 |
| 192.35.184.0/21 | 2k | RIPE NCC | NL | 2nd May 1988 |