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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 APNIC, largest first.
Unannounced blocks in Australia
2,368 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2401:1840::/32 | 4.3B × /64 | APNIC |  AU | 4th May 2017 |
| 2401:1b80::/32 | 4.3B × /64 | APNIC | AU | 13th Jun 2014 |
| 2401:1be0::/32 | 4.3B × /64 | APNIC | AU | 21st Jul 2023 |
| 2401:1e80::/32 | 4.3B × /64 | APNIC | AU | 16th Jun 2014 |
| 2401:2001::/32 | 4.3B × /64 | APNIC | AU | 3rd Aug 2011 |
| 2401:240::/32 | 4.3B × /64 | APNIC | AU | 23rd Apr 2017 |
| 2401:2480::/32 | 4.3B × /64 | APNIC | AU | 19th Jun 2014 |
| 2401:26c0::/32 | 4.3B × /64 | APNIC | AU | 17th May 2017 |
| 2401:2740::/32 | 4.3B × /64 | APNIC | AU | 18th May 2017 |
| 2401:2800::/32 | 4.3B × /64 | APNIC | AU | 12th May 2008 |
| 2401:2840::/32 | 4.3B × /64 | APNIC | AU | 19th May 2017 |
| 2401:2ac0::/32 | 4.3B × /64 | APNIC | AU | 23rd May 2017 |
| 2401:2bc0::/32 | 4.3B × /64 | APNIC | AU | 24th May 2017 |
| 2401:3080::/32 | 4.3B × /64 | APNIC | AU | 13th Jul 2014 |
| 2401:380::/32 | 4.3B × /64 | APNIC | AU | 26th May 2014 |
| 2401:3940::/32 | 4.3B × /64 | APNIC | AU | 6th Jun 2017 |
| 2401:3a40::/32 | 4.3B × /64 | APNIC | AU | 6th Jun 2017 |
| 2401:3c40::/32 | 4.3B × /64 | APNIC | AU | 6th Jun 2017 |
| 2401:3d40::/32 | 4.3B × /64 | APNIC | AU | 6th Jun 2017 |
| 2401:3dc0::/32 | 4.3B × /64 | APNIC | AU | 6th Jun 2017 |
| 2401:4400::/32 | 4.3B × /64 | APNIC | AU | 21st Aug 2009 |
| 2401:4600::/32 | 4.3B × /64 | APNIC | AU | 23rd Nov 2016 |
| 2401:4601::/32 | 4.3B × /64 | APNIC | AU | 3rd Jan 2017 |
| 2401:4740::/32 | 4.3B × /64 | APNIC | AU | 7th Jun 2017 |
| 2401:4ac0::/32 | 4.3B × /64 | APNIC | AU | 8th Jun 2017 |
| 2401:4b40::/32 | 4.3B × /64 | APNIC | AU | 8th Jun 2017 |
| 2401:4c80::/32 | 4.3B × /64 | APNIC | AU | 23rd Jul 2014 |
| 2401:4d00::/32 | 4.3B × /64 | APNIC | AU | 24th Jun 2011 |
| 2401:4ec0::/32 | 4.3B × /64 | APNIC | AU | 9th Jun 2017 |
| 2401:4f60::/32 | 4.3B × /64 | APNIC | AU | 15th Nov 2023 |
| 2401:51c0::/32 | 4.3B × /64 | APNIC | AU | 13th Jun 2017 |
| 2401:5a60::/32 | 4.3B × /64 | APNIC | AU | 13th Dec 2023 |
| 2401:5b00::/32 | 4.3B × /64 | APNIC | AU | 1st Jul 2011 |
| 2401:5f00::/32 | 4.3B × /64 | APNIC | AU | 5th Jul 2011 |
| 2401:700::/32 | 4.3B × /64 | APNIC | AU | 6th Jun 2011 |
| 2401:7100::/32 | 4.3B × /64 | APNIC | AU | 5th Jul 2011 |
| 2401:72c0::/32 | 4.3B × /64 | APNIC | AU | 29th Jun 2017 |
| 2401:7300::/32 | 4.3B × /64 | APNIC | AU | 5th Jul 2011 |
| 2401:7380::/32 | 4.3B × /64 | APNIC | AU | 22nd Aug 2014 |
| 2401:7440::/32 | 4.3B × /64 | APNIC | AU | 30th Jun 2017 |
| 2401:76e0::/32 | 4.3B × /64 | APNIC | AU | 17th Jan 2024 |
| 2401:7b00::/32 | 4.3B × /64 | APNIC | AU | 11th Jul 2011 |
| 2401:7e60::/32 | 4.3B × /64 | APNIC | AU | 7th Feb 2024 |
| 2401:8140::/32 | 4.3B × /64 | APNIC | AU | 13th Jul 2017 |
| 2401:81c0::/32 | 4.3B × /64 | APNIC | AU | 14th Jul 2017 |
| 2401:8560::/31 | 8.6B × /64 | APNIC | AU | 4th Mar 2024 |
| 2401:8a80::/32 | 4.3B × /64 | APNIC | AU | 5th Sept 2014 |
| 2401:8c00::/32 | 4.3B × /64 | APNIC | AU | 1st Sept 2009 |
| 2401:8c01::/32 | 4.3B × /64 | APNIC | AU | 26th Sept 2011 |
| 2401:8c0::/32 | 4.3B × /64 | APNIC | AU | 28th Apr 2017 |