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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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.
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Countries with the most unannounced blocks, largest first.
Unannounced blocks in Australia
2,385 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2406:9700::/32 | 4.3B × /64 | APNIC |  AU | 28th Mar 2013 |
| 2406:9f40::/32 | 4.3B × /64 | APNIC | AU | 20th Oct 2020 |
| 2406:a000::/32 | 4.3B × /64 | APNIC | AU | 27th Jul 2007 |
| 2406:a200::/32 | 4.3B × /64 | APNIC | AU | 1st Feb 2011 |
| 2406:a700::/32 | 4.3B × /64 | APNIC | AU | 8th Apr 2013 |
| 2406:b300::/32 | 4.3B × /64 | APNIC | AU | 10th Apr 2013 |
| 2406:b9c0::/32 | 4.3B × /64 | APNIC | AU | 10th Nov 2020 |
| 2406:ba00::/32 | 4.3B × /64 | APNIC | AU | 4th Feb 2011 |
| 2406:ba40::/32 | 4.3B × /64 | APNIC | AU | 10th Nov 2020 |
| 2406:bac0::/32 | 4.3B × /64 | APNIC | AU | 10th Nov 2020 |
| 2406:bc00::/32 | 4.3B × /64 | APNIC | AU | 23rd Feb 2010 |
| 2406:be00::/32 | 4.3B × /64 | APNIC | AU | 4th Feb 2011 |
| 2406:c000::/32 | 4.3B × /64 | APNIC | AU | 18th Apr 2007 |
| 2406:c400::/32 | 4.3B × /64 | APNIC | AU | 23rd Feb 2010 |
| 2406:cb00::/32 | 4.3B × /64 | APNIC | AU | 23rd Apr 2013 |
| 2406:d300::/32 | 4.3B × /64 | APNIC | AU | 30th Apr 2013 |
| 2406:d3c0::/32 | 4.3B × /64 | APNIC | AU | 2nd Dec 2020 |
| 2406:e600::/32 | 4.3B × /64 | APNIC | AU | 9th Feb 2011 |
| 2406:e940::/32 | 4.3B × /64 | APNIC | AU | 16th Dec 2020 |
| 2406:eb80::/32 | 4.3B × /64 | APNIC | AU | 24th Aug 2016 |
| 2406:ef00::/32 | 4.3B × /64 | APNIC | AU | 10th May 2013 |
| 2406:f780::/32 | 4.3B × /64 | APNIC | AU | 29th Aug 2016 |
| 2406:fa00::/32 | 4.3B × /64 | APNIC | AU | 11th Feb 2011 |
| 2407:1700::/32 | 4.3B × /64 | APNIC | AU | 4th Jun 2013 |
| 2407:1740::/32 | 4.3B × /64 | APNIC | AU | 3rd Feb 2021 |
| 2407:1980::/32 | 4.3B × /64 | APNIC | AU | 2nd Sept 2016 |
| 2407:200::/32 | 4.3B × /64 | APNIC | AU | 14th Feb 2011 |
| 2407:2080::/32 | 4.3B × /64 | APNIC | AU | 5th Sept 2016 |
| 2407:20c0::/32 | 4.3B × /64 | APNIC | AU | 16th Feb 2021 |
| 2407:2980::/32 | 4.3B × /64 | APNIC | AU | 6th Sept 2016 |
| 2407:2b40::/32 | 4.3B × /64 | APNIC | AU | 3rd Mar 2021 |
| 2407:2c80::/32 | 4.3B × /64 | APNIC | AU | 6th Sept 2016 |
| 2407:2e01::/32 | 4.3B × /64 | APNIC | AU | 19th Jun 2014 |
| 2407:300::/32 | 4.3B × /64 | APNIC | AU | 23rd May 2013 |
| 2407:32c1::/32 | 4.3B × /64 | APNIC | AU | 10th Mar 2021 |
| 2407:3580::/32 | 4.3B × /64 | APNIC | AU | 12th Sept 2016 |
| 2407:3600::/32 | 4.3B × /64 | APNIC | AU | 21st Feb 2011 |
| 2407:380::/32 | 4.3B × /64 | APNIC | AU | 1st Sept 2016 |
| 2407:400::/32 | 4.3B × /64 | APNIC | AU | 25th Feb 2010 |
| 2407:4200::/32 | 4.3B × /64 | APNIC | AU | 21st Feb 2011 |
| 2407:5580::/32 | 4.3B × /64 | APNIC | AU | 22nd Sept 2016 |
| 2407:5640::/32 | 4.3B × /64 | APNIC | AU | 23rd Apr 2021 |
| 2407:5700::/32 | 4.3B × /64 | APNIC | AU | 28th Jun 2013 |
| 2407:5900::/32 | 4.3B × /64 | APNIC | AU | 1st Jul 2013 |
| 2407:5d40::/32 | 4.3B × /64 | APNIC | AU | 5th May 2021 |
| 2407:6b00::/32 | 4.3B × /64 | APNIC | AU | 5th Jul 2013 |
| 2407:7080::/32 | 4.3B × /64 | APNIC | AU | 4th Oct 2016 |
| 2407:7300::/32 | 4.3B × /64 | APNIC | AU | 8th Jul 2013 |
| 2407:7500::/32 | 4.3B × /64 | APNIC | AU | 9th Jul 2013 |
| 2407:7800::/32 | 4.3B × /64 | APNIC | AU | 14th May 2009 |