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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Sweden
680 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 192.16.129.0/24 | 256 | RIPE NCC |  SE | 22nd Jul 1986 |
| 192.16.130.0/24 | 256 | RIPE NCC | SE | 22nd Jul 1986 |
| 192.16.138.0/24 | 256 | RIPE NCC | SE | 22nd Jul 1986 |
| 192.16.139.0/24 | 256 | RIPE NCC | SE | 23rd Oct 1992 |
| 192.16.141.0/24 | 256 | RIPE NCC | SE | 22nd Jul 1986 |
| 192.16.142.0/24 | 256 | RIPE NCC | SE | 22nd Jul 1986 |
| 192.16.147.0/24 | 256 | RIPE NCC | SE | 12th Sept 1996 |
| 192.16.154.0/24 | 256 | RIPE NCC | SE | 26th Oct 1992 |
| 192.188.122.0/24 | 256 | RIPE NCC | SE | 1st Jul 1992 |
| 192.195.134.0/23 | 512 | RIPE NCC | SE | 24th Jul 1992 |
| 192.21.0.0/16 | 65.5k | RIPE NCC | SE | 22nd Jan 1986 |
| 192.245.97.0/24 | 256 | RIPE NCC | SE | 2nd Nov 1992 |
| 192.35.247.0/24 | 256 | RIPE NCC | SE | 17th May 1990 |
| 192.43.162.0/23 | 512 | RIPE NCC | SE | 15th Nov 1988 |
| 192.54.225.0/24 | 256 | RIPE NCC | SE | 15th Jun 1989 |
| 192.58.197.0/24 | 256 | RIPE NCC | SE | 11th Oct 1989 |
| 192.67.58.0/24 | 256 | RIPE NCC | SE | 10th Jan 1990 |
| 192.81.194.0/24 | 256 | RIPE NCC | SE | 29th Oct 1992 |
| 192.86.254.0/24 | 256 | RIPE NCC | SE | 12th Dec 1990 |
| 193.100.228.0/22 | 1k | RIPE NCC | SE | 15th Feb 1994 |
| 193.104.100.0/24 | 256 | RIPE NCC | SE | 2nd Nov 2009 |
| 193.104.122.0/24 | 256 | RIPE NCC | SE | 10th Nov 2009 |
| 193.104.141.0/24 | 256 | RIPE NCC | SE | 15th Nov 2019 |
| 193.106.148.0/24 | 256 | RIPE NCC | SE | 19th Oct 2022 |
| 193.108.223.0/24 | 256 | RIPE NCC | SE | 8th Aug 2001 |
| 193.110.12.0/23 | 512 | RIPE NCC | SE | 27th Nov 2001 |
| 193.138.71.0/24 | 256 | RIPE NCC | SE | 10th Feb 2003 |
| 193.142.160.0/20 | 4.1k | RIPE NCC | SE | 29th Jun 1994 |
| 193.142.240.0/24 | 256 | RIPE NCC | SE | 2nd Nov 1994 |
| 193.150.104.0/24 | 256 | RIPE NCC | SE | 20th Oct 2011 |
| 193.161.236.0/22 | 1k | RIPE NCC | SE | 3rd Oct 1994 |
| 193.17.218.0/24 | 256 | RIPE NCC | SE | 18th Oct 2004 |
| 193.176.3.0/24 | 256 | RIPE NCC | SE | 23rd Feb 1993 |
| 193.188.201.0/24 | 256 | RIPE NCC | SE | 27th Mar 1996 |
| 193.188.202.0/23 | 512 | RIPE NCC | SE | 27th Mar 1996 |
| 193.188.4.0/24 | 256 | RIPE NCC | SE | 1st Sept 1993 |
| 193.188.5.0/24 | 256 | RIPE NCC | SE | 1st Sept 1993 |
| 193.188.6.0/24 | 256 | RIPE NCC | SE | 1st Sept 1993 |
| 193.194.192.0/18 | 16.4k | RIPE NCC | SE | 18th Mar 1996 |
| 193.200.208.0/24 | 256 | RIPE NCC | SE | 24th May 2007 |
| 193.201.148.128/26 | 64 | RIPE NCC | SE | 29th Sept 2023 |
| 193.201.156.128/25 | 128 | RIPE NCC | SE | 17th May 2004 |
| 193.22.168.0/24 | 256 | RIPE NCC | SE | 13th Nov 2019 |
| 193.22.170.0/24 | 256 | RIPE NCC | SE | 13th Nov 2019 |
| 193.227.126.0/24 | 256 | RIPE NCC | SE | 7th Sept 2006 |
| 193.24.115.0/24 | 256 | RIPE NCC | SE | 2nd Jul 2024 |
| 193.242.103.0/24 | 256 | RIPE NCC | SE | 23rd Nov 2004 |
| 193.242.182.0/24 | 256 | RIPE NCC | SE | 21st Jun 2012 |
| 193.243.128.0/24 | 256 | RIPE NCC | SE | 7th Apr 2020 |
| 193.243.183.192/26 | 64 | RIPE NCC | SE | 3rd Apr 2006 |