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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Germany
2,758 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 185.55.192.0/22 | 1k | RIPE NCC | 28th Apr 2014 | |
| 185.55.220.0/22 | 1k | RIPE NCC | 28th Apr 2014 | |
| 185.57.0.0/22 | 1k | RIPE NCC | 8th May 2014 | |
| 185.57.25.0/24 | 256 | RIPE NCC | 9th May 2014 | |
| 185.57.26.0/23 | 512 | RIPE NCC | 9th May 2014 | |
| 185.58.108.0/22 | 1k | RIPE NCC | 21st May 2014 | |
| 185.61.100.0/22 | 1k | RIPE NCC | 18th Jun 2014 | |
| 185.62.45.0/24 | 256 | RIPE NCC | 27th May 2026 | |
| 185.66.196.0/22 | 1k | RIPE NCC | 11th Aug 2014 | |
| 185.66.220.0/22 | 1k | RIPE NCC | 11th Aug 2014 | |
| 185.68.124.0/22 | 1k | RIPE NCC | 28th Aug 2014 | |
| 185.7.248.0/22 | 1k | RIPE NCC | 25th Oct 2012 | |
| 185.70.204.0/22 | 1k | RIPE NCC | 19th Sept 2014 | |
| 185.71.248.0/22 | 1k | RIPE NCC | 2nd Oct 2014 | |
| 185.74.12.0/22 | 1k | RIPE NCC | 22nd Oct 2014 | |
| 185.75.228.0/22 | 1k | RIPE NCC | 4th Nov 2014 | |
| 185.75.24.0/22 | 1k | RIPE NCC | 28th Oct 2014 | |
| 185.76.116.0/22 | 1k | RIPE NCC | 10th Nov 2014 | |
| 185.76.172.0/22 | 1k | RIPE NCC | 11th Nov 2014 | |
| 185.77.22.0/24 | 256 | RIPE NCC | 30th Apr 2025 | |
| 185.77.23.0/24 | 256 | RIPE NCC | 30th Apr 2025 | |
| 185.79.124.0/24 | 256 | RIPE NCC | 1st Dec 2014 | |
| 185.79.126.0/23 | 512 | RIPE NCC | 1st Dec 2014 | |
| 185.8.118.0/23 | 512 | RIPE NCC | 30th Oct 2012 | |
| 185.82.4.0/22 | 1k | RIPE NCC | 19th Dec 2014 | |
| 185.85.40.0/22 | 1k | RIPE NCC | 21st Jan 2015 | |
| 185.85.48.0/22 | 1k | RIPE NCC | 22nd Jan 2015 | |
| 185.86.172.0/22 | 1k | RIPE NCC | 3rd Feb 2015 | |
| 185.9.108.0/22 | 1k | RIPE NCC | 8th Nov 2012 | |
| 185.93.212.0/24 | 256 | RIPE NCC | 27th Mar 2015 | |
| 185.93.213.0/24 | 256 | RIPE NCC | 27th Mar 2015 | |
| 185.96.92.0/22 | 1k | RIPE NCC | 16th Apr 2015 | |
| 185.97.176.0/22 | 1k | RIPE NCC | 24th Apr 2015 | |
| 185.97.215.0/24 | 256 | RIPE NCC | 17th Jan 2025 | |
| 185.98.160.0/24 | 256 | RIPE NCC | 17th Jan 2025 | |
| 188.116.12.0/22 | 1k | RIPE NCC | 29th May 2009 | |
| 188.138.12.0/22 | 1k | RIPE NCC | 8th May 2009 | |
| 188.138.20.0/22 | 1k | RIPE NCC | 8th May 2009 | |
| 188.138.48.0/21 | 2k | RIPE NCC | 8th May 2009 | |
| 188.144.0.0/15 | 131k | RIPE NCC | 13th Mar 2009 | |
| 188.65.112.0/21 | 2k | RIPE NCC | 7th Aug 2009 | |
| 188.65.161.0/24 | 256 | RIPE NCC | 5th Dec 2023 | |
| 188.66.40.0/21 | 2k | RIPE NCC | 25th Aug 2009 | |
| 192.100.98.0/24 | 256 | RIPE NCC | 12th Apr 1991 | |
| 192.101.179.0/24 | 256 | RIPE NCC | 16th Jul 1991 | |
| 192.101.180.0/24 | 256 | RIPE NCC | 16th Jul 1991 | |
| 192.101.197.0/24 | 256 | RIPE NCC | 19th Jul 1991 | |
| 192.101.198.0/24 | 256 | RIPE NCC | 19th Jul 1991 | |
| 192.101.28.0/24 | 256 | RIPE NCC | 25th Apr 1991 | |
| 192.102.89.0/24 | 256 | RIPE NCC | 13th Mar 1991 |