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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through RIPE NCC, largest first.
Unannounced blocks in Ireland
239 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 57.142.0.0/15 | 131k | RIPE NCC |  IE | 21st Jun 1993 |
| 57.148.0.0/15 | 131k | RIPE NCC | IE | 21st Jun 1993 |
| 57.194.0.0/15 | 131k | RIPE NCC | IE | 21st Jun 1993 |
| 57.197.0.0/16 | 65.5k | RIPE NCC | IE | 21st Jun 1993 |
| 57.199.0.0/16 | 65.5k | RIPE NCC | IE | 21st Jun 1993 |
| 57.200.0.0/16 | 65.5k | RIPE NCC | IE | 21st Jun 1993 |
| 57.202.0.0/15 | 131k | RIPE NCC | IE | 21st Jun 1993 |
| 57.205.0.0/16 | 65.5k | RIPE NCC | IE | 21st Jun 1993 |
| 57.207.0.0/16 | 65.5k | RIPE NCC | IE | 21st Jun 1993 |
| 57.208.0.0/12 | 1M | RIPE NCC | IE | 21st Jun 1993 |
| 57.21.0.0/16 | 65.5k | RIPE NCC | IE | 21st Jun 1993 |
| 57.35.0.0/16 | 65.5k | RIPE NCC | IE | 21st Jun 1993 |
| 57.7.0.0/16 | 65.5k | RIPE NCC | IE | 21st Jun 1993 |
| 57.92.0.0/16 | 65.5k | RIPE NCC | IE | 21st Jun 1993 |
| 66.234.128.0/20 | 4.1k | RIPE NCC | IE | 26th Feb 2002 |
| 66.255.200.0/22 | 1k | RIPE NCC | IE | 9th Feb 2004 |
| 67.158.62.0/24 | 256 | RIPE NCC | IE | 1st Apr 2010 |
| 83.220.192.0/19 | 8.2k | RIPE NCC | IE | 7th Apr 2004 |
| 85.134.128.0/17 | 32.8k | RIPE NCC | IE | 14th Dec 2004 |
| 85.8.195.0/24 | 256 | RIPE NCC | IE | 26th Jun 2026 |
| 88.218.36.0/22 | 1k | RIPE NCC | IE | 14th Dec 2018 |
| 89.126.240.0/21 | 2k | RIPE NCC | IE | 8th Mar 2006 |
| 89.127.0.0/17 | 32.8k | RIPE NCC | IE | 8th Mar 2006 |
| 89.18.80.0/21 | 2k | RIPE NCC | IE | 10th Aug 2006 |
| 91.195.174.0/23 | 512 | RIPE NCC | IE | 3rd Oct 2019 |
| 91.195.208.0/23 | 512 | RIPE NCC | IE | 3rd Oct 2019 |
| 91.206.208.0/23 | 512 | RIPE NCC | IE | 3rd Oct 2019 |
| 91.216.56.0/24 | 256 | RIPE NCC | IE | 29th Apr 2010 |
| 91.220.224.0/24 | 256 | RIPE NCC | IE | 10th Dec 2010 |
| 91.224.114.0/23 | 512 | RIPE NCC | IE | 5th Nov 2019 |
| 91.228.0.0/22 | 1k | RIPE NCC | IE | 19th May 2011 |
| 91.231.154.0/23 | 512 | RIPE NCC | IE | 27th Sept 2011 |
| 91.235.117.0/24 | 256 | RIPE NCC | IE | 9th Feb 2012 |
| 91.235.76.0/23 | 512 | RIPE NCC | IE | 5th Nov 2019 |
| 91.238.214.0/23 | 512 | RIPE NCC | IE | 25th Apr 2012 |
| 92.118.32.0/22 | 1k | RIPE NCC | IE | 1st Mar 2019 |
| 92.119.39.0/24 | 256 | RIPE NCC | IE | 7th Jun 2021 |
| 93.174.168.0/21 | 2k | RIPE NCC | IE | 26th Jun 2008 |
| 93.190.188.0/23 | 512 | RIPE NCC | IE | 21st May 2008 |