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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
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Countries with unannounced space registered through RIPE NCC, largest first.
Unannounced blocks in Ireland
244 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 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 |
| 62.3.54.0/24 | 256 | RIPE NCC | IE | 9th Nov 2021 |
| 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 |
| 85.155.2.0/23 | 512 | RIPE NCC | IE | 5th Nov 2004 |
| 85.159.16.0/22 | 1k | RIPE NCC | IE | 3rd Feb 2005 |
| 85.159.20.0/23 | 512 | RIPE NCC | IE | 3rd Feb 2005 |
| 85.159.22.0/24 | 256 | RIPE NCC | IE | 3rd Feb 2005 |
| 85.8.195.0/24 | 256 | RIPE NCC | IE | 26th Jun 2026 |
| 87.192.222.0/23 | 512 | RIPE NCC | IE | 3rd Jun 2005 |
| 87.192.82.0/23 | 512 | RIPE NCC | IE | 3rd Jun 2005 |
| 87.232.192.0/24 | 256 | RIPE NCC | IE | 1st Jul 2005 |
| 87.232.194.0/23 | 512 | RIPE NCC | IE | 1st Jul 2005 |
| 87.232.196.0/22 | 1k | RIPE NCC | IE | 1st Jul 2005 |
| 88.218.36.0/22 | 1k | RIPE NCC | IE | 14th Dec 2018 |
| 89.124.4.0/22 | 1k | RIPE NCC | IE | 8th Mar 2006 |
| 89.127.248.0/22 | 1k | 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 |