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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 ARIN, largest first.
Unannounced blocks registered through ARIN
30,430 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 69.51.128.0/19 | 8.2k | ARIN |  US | 9th Jun 2003 |
| 69.54.192.0/19 | 8.2k | ARIN | US | 9th Jun 2003 |
| 69.56.128.0/17 | 32.8k | ARIN | US | 10th Jun 2003 |
| 69.57.64.0/20 | 4.1k | ARIN | US | 18th Jun 2003 |
| 69.58.160.0/20 | 4.1k | ARIN | US | 13th Jun 2005 |
| 69.58.26.0/24 | 256 | ARIN |  CA | 16th Jul 2012 |
| 69.58.95.0/24 | 256 | ARIN | US | 21st Sept 2020 |
| 69.59.25.0/24 | 256 | ARIN | US | 9th Oct 2020 |
| 69.59.65.0/24 | 256 | ARIN | US | 12th Jan 2015 |
| 69.59.95.0/24 | 256 | ARIN | US | 4th Sept 2014 |
| 69.6.80.0/20 | 4.1k | ARIN | US | 27th Jun 2012 |
| 69.60.144.0/20 | 4.1k | ARIN | US | 18th Jul 2007 |
| 69.64.120.0/22 | 1k | ARIN | US | 28th Sept 2020 |
| 69.65.96.0/19 | 8.2k | ARIN | US | 6th Feb 2006 |
| 69.67.168.0/23 | 512 | ARIN | US | 29th Jan 2025 |
| 69.67.184.0/24 | 256 | ARIN | CA | 12th Aug 2003 |
| 69.7.79.0/24 | 256 | ARIN | US | 18th Aug 2020 |
| 69.71.208.0/23 | 512 | ARIN | US | 29th Sept 2006 |
| 69.71.210.0/24 | 256 | ARIN | US | 18th Feb 2026 |
| 69.71.212.0/22 | 1k | ARIN | US | 29th Sept 2006 |
| 69.71.216.0/22 | 1k | ARIN | US | 29th Sept 2006 |
| 69.71.222.0/23 | 512 | ARIN | US | 29th Sept 2006 |
| 69.71.224.0/19 | 8.2k | ARIN | US | 29th Sept 2005 |
| 69.8.176.0/20 | 4.1k | ARIN | US | 5th Mar 2004 |
| 69.80.232.0/21 | 2k | ARIN | CA | 1st Jun 2018 |
| 69.85.136.0/24 | 256 | ARIN | US | 13th Feb 2012 |
| 69.85.143.0/24 | 256 | ARIN | US | 13th Feb 2012 |
| 69.85.144.0/21 | 2k | ARIN | US | 13th Feb 2012 |
| 69.85.154.0/23 | 512 | ARIN | US | 13th Feb 2012 |
| 69.85.156.0/23 | 512 | ARIN | US | 13th Feb 2012 |
| 69.85.160.0/19 | 8.2k | ARIN | US | 13th Feb 2012 |
| 69.87.120.0/22 | 1k | ARIN | US | 11th Aug 2023 |
| 69.87.176.0/22 | 1k | ARIN | US | 3rd Oct 2025 |
| 69.87.208.0/24 | 256 | ARIN | US | 25th Jan 2017 |
| 69.87.215.0/24 | 256 | ARIN | US | 8th Apr 2016 |
| 69.87.64.0/19 | 8.2k | ARIN | US | 11th Aug 2023 |
| 69.87.8.0/21 | 2k | ARIN | US | 11th Aug 2023 |
| 69.88.132.0/23 | 512 | ARIN | US | 20th Nov 2003 |
| 69.88.136.0/21 | 2k | ARIN | US | 20th Nov 2003 |
| 69.88.148.0/22 | 1k | ARIN | US | 20th Nov 2003 |
| 69.9.161.0/24 | 256 | ARIN | US | 20th Oct 2025 |
| 69.9.162.0/23 | 512 | ARIN | US | 17th Dec 2025 |
| 69.9.164.0/22 | 1k | ARIN | US | 20th Nov 2025 |
| 69.9.175.0/24 | 256 | ARIN | US | 9th Dec 2025 |
| 69.90.160.0/21 | 2k | ARIN | CA | 6th Nov 2003 |
| 69.90.224.0/22 | 1k | ARIN | CA | 6th Nov 2003 |
| 69.90.228.0/23 | 512 | ARIN | CA | 6th Nov 2003 |
| 69.90.231.0/24 | 256 | ARIN | CA | 6th Nov 2003 |
| 69.90.232.0/22 | 1k | ARIN | CA | 6th Nov 2003 |
| 69.90.236.0/22 | 1k | ARIN | US | 25th Jun 2025 |