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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Norway
372 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 192.84.32.0/24 | 256 | RIPE NCC |  NO | 23rd Oct 1990 |
| 192.84.33.0/24 | 256 | RIPE NCC | NO | 23rd Oct 1990 |
| 192.91.189.0/24 | 256 | RIPE NCC | NO | 18th Jan 1991 |
| 192.92.216.0/24 | 256 | RIPE NCC | NO | 1st Sept 1993 |
| 193.104.105.0/24 | 256 | RIPE NCC | NO | 3rd Nov 2009 |
| 193.109.210.0/24 | 256 | RIPE NCC | NO | 5th Oct 2001 |
| 193.142.110.0/24 | 256 | RIPE NCC | NO | 12th Mar 2007 |
| 193.16.100.0/24 | 256 | RIPE NCC | NO | 1st Jun 2004 |
| 193.160.112.0/24 | 256 | RIPE NCC | NO | 5th Apr 1995 |
| 193.160.116.0/23 | 512 | RIPE NCC | NO | 28th Jun 1995 |
| 193.160.126.0/23 | 512 | RIPE NCC | NO | 1st Jun 1995 |
| 193.160.132.0/23 | 512 | RIPE NCC | NO | 16th Mar 1993 |
| 193.160.137.0/24 | 256 | RIPE NCC | NO | 23rd Mar 1993 |
| 193.160.29.0/24 | 256 | RIPE NCC | NO | 25th Nov 1994 |
| 193.160.56.0/21 | 2k | RIPE NCC | NO | 11th Mar 1993 |
| 193.161.138.0/23 | 512 | RIPE NCC | NO | 25th Nov 1993 |
| 193.161.146.0/24 | 256 | RIPE NCC | NO | 17th Mar 1998 |
| 193.161.152.0/23 | 512 | RIPE NCC | NO | 21st Feb 1994 |
| 193.161.154.0/23 | 512 | RIPE NCC | NO | 21st Feb 1994 |
| 193.161.158.0/23 | 512 | RIPE NCC | NO | 27th Jul 1995 |
| 193.161.194.0/23 | 512 | RIPE NCC | NO | 15th Mar 1994 |
| 193.161.207.0/24 | 256 | RIPE NCC | NO | 23rd Jun 1994 |
| 193.161.224.0/21 | 2k | RIPE NCC | NO | 23rd Jun 1994 |
| 193.161.252.0/24 | 256 | RIPE NCC | NO | 15th Nov 1994 |
| 193.161.253.0/24 | 256 | RIPE NCC | NO | 30th Aug 1994 |
| 193.161.27.0/24 | 256 | RIPE NCC | NO | 12th Nov 1993 |
| 193.218.128.0/22 | 1k | RIPE NCC | NO | 8th Dec 2006 |
| 193.39.251.0/24 | 256 | RIPE NCC | NO | 13th Oct 1993 |
| 193.41.238.0/24 | 256 | RIPE NCC | NO | 12th Jun 2023 |
| 193.57.142.0/23 | 512 | RIPE NCC | NO | 10th Oct 2019 |
| 193.57.98.0/23 | 512 | RIPE NCC | NO | 10th Oct 2019 |
| 193.84.10.0/24 | 256 | RIPE NCC | NO | 11th Sept 2023 |
| 194.104.231.0/24 | 256 | RIPE NCC | NO | 1st Oct 2021 |
| 194.117.53.128/25 | 128 | RIPE NCC | NO | 20th Oct 2005 |
| 194.153.130.0/24 | 256 | RIPE NCC | NO | 19th Aug 2026 |
| 194.153.154.128/25 | 128 | RIPE NCC | NO | 21st Aug 2002 |
| 194.182.224.0/21 | 2k | RIPE NCC | NO | 14th Feb 1996 |
| 194.213.128.0/19 | 8.2k | RIPE NCC | NO | 8th Jan 1996 |
| 194.213.160.0/19 | 8.2k | RIPE NCC | NO | 22nd Apr 1999 |
| 194.247.48.0/24 | 256 | RIPE NCC | NO | 18th Jun 2012 |
| 194.33.30.0/24 | 256 | RIPE NCC | NO | 15th Dec 1993 |
| 194.35.64.0/21 | 2k | RIPE NCC | NO | 19th Apr 1994 |
| 194.43.0.0/16 | 65.5k | RIPE NCC | NO | 9th Apr 1996 |
| 194.50.212.0/23 | 512 | RIPE NCC | NO | 23rd Oct 2019 |
| 194.50.220.0/23 | 512 | RIPE NCC | NO | 23rd Oct 2019 |
| 194.61.95.0/24 | 256 | RIPE NCC | NO | 24th Aug 1994 |
| 194.62.100.0/23 | 512 | RIPE NCC | NO | 9th Nov 1994 |
| 194.62.204.0/22 | 1k | RIPE NCC | NO | 14th Dec 1994 |
| 194.62.212.0/23 | 512 | RIPE NCC | NO | 14th Dec 1994 |
| 195.110.22.0/23 | 512 | RIPE NCC | NO | 5th Nov 2019 |