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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Finland
329 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 192.147.215.0/24 | 256 | RIPE NCC |  FI | 17th Feb 1992 |
| 192.147.216.0/24 | 256 | RIPE NCC | FI | 17th Feb 1992 |
| 192.149.5.0/24 | 256 | RIPE NCC | FI | 21st Feb 1992 |
| 192.152.68.0/24 | 256 | RIPE NCC | FI | 8th Apr 1992 |
| 192.159.122.0/24 | 256 | RIPE NCC | FI | 7th May 1992 |
| 192.159.70.0/24 | 256 | RIPE NCC | FI | 28th Apr 1992 |
| 192.175.32.0/24 | 256 | RIPE NCC | FI | 1st Jan 1984 |
| 192.175.33.0/24 | 256 | RIPE NCC | FI | 17th Jun 1992 |
| 192.175.34.0/24 | 256 | RIPE NCC | FI | 17th Jun 1992 |
| 192.175.35.0/24 | 256 | RIPE NCC | FI | 17th Jun 1992 |
| 192.175.36.0/24 | 256 | RIPE NCC | FI | 17th Jun 1992 |
| 192.175.44.0/24 | 256 | RIPE NCC | FI | 17th Jun 1992 |
| 192.175.45.0/24 | 256 | RIPE NCC | FI | 1st Jan 1984 |
| 192.175.46.0/24 | 256 | RIPE NCC | FI | 17th Jun 1992 |
| 192.175.47.0/24 | 256 | RIPE NCC | FI | 17th Jun 1992 |
| 192.203.108.0/23 | 512 | RIPE NCC | FI | 21st Aug 1992 |
| 192.26.105.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.106.0/24 | 256 | RIPE NCC | FI | 12th Jan 1993 |
| 192.26.107.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.108.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.109.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.112.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.113.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.114.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.115.0/24 | 256 | RIPE NCC | FI | 13th Apr 1994 |
| 192.26.116.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.117.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.118.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.120.0/24 | 256 | RIPE NCC | FI | 2nd Jun 1993 |
| 192.26.121.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.122.0/24 | 256 | RIPE NCC | FI | 12th Jan 1993 |
| 192.26.124.0/24 | 256 | RIPE NCC | FI | 30th Oct 1992 |
| 192.26.125.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.126.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.127.0/24 | 256 | RIPE NCC | FI | 1st Jan 1984 |
| 192.26.128.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.133.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.134.0/24 | 256 | RIPE NCC | FI | 16th Jan 1987 |
| 192.26.135.0/24 | 256 | RIPE NCC | FI | 14th Jan 1996 |
| 192.34.179.0/24 | 256 | RIPE NCC | FI | 22nd Jan 1997 |
| 192.40.228.0/24 | 256 | RIPE NCC | FI | 30th Aug 2001 |
| 192.81.160.0/24 | 256 | RIPE NCC | FI | 1st Sept 1993 |
| 192.81.182.0/23 | 512 | RIPE NCC | FI | 1st Sept 1993 |
| 192.88.86.0/24 | 256 | RIPE NCC | FI | 22nd Feb 1994 |
| 192.92.116.0/24 | 256 | RIPE NCC | FI | 28th Jan 1991 |
| 193.105.102.0/24 | 256 | RIPE NCC | FI | 15th Nov 2019 |
| 193.105.117.0/24 | 256 | RIPE NCC | FI | 15th Nov 2019 |
| 193.105.121.0/24 | 256 | RIPE NCC | FI | 15th Nov 2019 |
| 193.110.108.0/23 | 512 | RIPE NCC | FI | 14th Dec 2001 |
| 193.110.224.0/22 | 1k | RIPE NCC | FI | 1st Feb 2002 |