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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
2,394 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2404:1d00::/32 | 4.3B × /64 | APNIC |  AU | 5th Jun 2012 |
| 2404:2780::/32 | 4.3B × /64 | APNIC | AU | 22nd Jan 2016 |
| 2404:2b00::/32 | 4.3B × /64 | APNIC | AU | 14th Jun 2012 |
| 2404:4180::/32 | 4.3B × /64 | APNIC | AU | 5th Feb 2016 |
| 2404:4380::/32 | 4.3B × /64 | APNIC | AU | 8th Feb 2016 |
| 2404:4440::/32 | 4.3B × /64 | APNIC | AU | 16th Jan 2019 |
| 2404:4b40::/32 | 4.3B × /64 | APNIC | AU | 23rd Jan 2019 |
| 2404:4c00::/32 | 4.3B × /64 | APNIC | AU | 10th Feb 2010 |
| 2404:5000::/32 | 4.3B × /64 | APNIC | AU | 16th Jan 2009 |
| 2404:5080::/32 | 4.3B × /64 | APNIC | AU | 15th Feb 2016 |
| 2404:5300::/32 | 4.3B × /64 | APNIC | AU | 2nd Jul 2012 |
| 2404:5400::/32 | 4.3B × /64 | APNIC | AU | 11th Feb 2010 |
| 2404:5500::/32 | 4.3B × /64 | APNIC | AU | 3rd Jul 2012 |
| 2404:5880::/32 | 4.3B × /64 | APNIC | AU | 21st Feb 2016 |
| 2404:5ac0::/32 | 4.3B × /64 | APNIC | AU | 4th Feb 2019 |
| 2404:6980::/32 | 4.3B × /64 | APNIC | AU | 1st Mar 2016 |
| 2404:6c40::/32 | 4.3B × /64 | APNIC | AU | 18th Feb 2019 |
| 2404:780::/32 | 4.3B × /64 | APNIC | AU | 22nd Dec 2015 |
| 2404:78c0::/32 | 4.3B × /64 | APNIC | AU | 22nd Feb 2019 |
| 2404:8900::/32 | 4.3B × /64 | APNIC | AU | 24th Jul 2012 |
| 2404:8d80::/32 | 4.3B × /64 | APNIC | AU | 17th Mar 2016 |
| 2404:8f00::/32 | 4.3B × /64 | APNIC | AU | 24th Jul 2012 |
| 2404:9540::/32 | 4.3B × /64 | APNIC | AU | 11th Mar 2019 |
| 2404:9601::/32 | 4.3B × /64 | APNIC | AU | 30th Oct 2012 |
| 2404:9c00::/32 | 4.3B × /64 | APNIC | AU | 11th Feb 2010 |
| 2404:a680::/32 | 4.3B × /64 | APNIC | AU | 31st Mar 2016 |
| 2404:b880::/32 | 4.3B × /64 | APNIC | AU | 8th Apr 2016 |
| 2404:c100::/32 | 4.3B × /64 | APNIC | AU | 13th Aug 2012 |
| 2404:ca80::/32 | 4.3B × /64 | APNIC | AU | 14th Apr 2016 |
| 2404:d100::/32 | 4.3B × /64 | APNIC | AU | 17th Aug 2012 |
| 2404:d300::/32 | 4.3B × /64 | APNIC | AU | 17th Aug 2012 |
| 2404:d40::/32 | 4.3B × /64 | APNIC | AU | 3rd Dec 2018 |
| 2404:d600::/32 | 4.3B × /64 | APNIC | AU | 13th Oct 2010 |
| 2404:d700::/32 | 4.3B × /64 | APNIC | AU | 22nd Aug 2012 |
| 2404:d980::/32 | 4.3B × /64 | APNIC | AU | 22nd Apr 2016 |
| 2404:da00::/32 | 4.3B × /64 | APNIC | AU | 13th Oct 2010 |
| 2404:dd00::/32 | 4.3B × /64 | APNIC | AU | 27th Aug 2012 |
| 2404:ea00::/32 | 4.3B × /64 | APNIC | AU | 19th Oct 2010 |
| 2404:ed40::/32 | 4.3B × /64 | APNIC | AU | 6th Jun 2019 |
| 2404:f200::/32 | 4.3B × /64 | APNIC | AU | 22nd Oct 2010 |
| 2404:f3c0::/32 | 4.3B × /64 | APNIC | AU | 12th Jun 2019 |
| 2404:fac0::/32 | 4.3B × /64 | APNIC | AU | 24th Jun 2019 |
| 2404:fc80::/32 | 4.3B × /64 | APNIC | AU | 6th May 2016 |
| 2404:fd40::/32 | 4.3B × /64 | APNIC | AU | 25th Jun 2019 |
| 2404:fe00::/32 | 4.3B × /64 | APNIC | AU | 22nd Oct 2010 |
| 2405:140::/32 | 4.3B × /64 | APNIC | AU | 4th Jul 2019 |
| 2405:2440::/32 | 4.3B × /64 | APNIC | AU | 7th Aug 2019 |
| 2405:2b00::/32 | 4.3B × /64 | APNIC | AU | 17th Sept 2012 |
| 2405:2e00::/32 | 4.3B × /64 | APNIC | AU | 11th Nov 2010 |
| 2405:3c00::/32 | 4.3B × /64 | APNIC | AU | 11th Feb 2010 |