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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through LACNIC, largest first.
Unannounced blocks registered through LACNIC
4,567 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2803:5650::/32 | 4.3B × /64 | LACNIC |  VE | 2nd Apr 2024 |
| 2803:5660::/32 | 4.3B × /64 | LACNIC |  AR | 13th Jun 2019 |
| 2803:5690::/32 | 4.3B × /64 | LACNIC | AR | 31st Oct 2022 |
| 2803:56c0::/32 | 4.3B × /64 | LACNIC |  CL | 14th Feb 2017 |
| 2803:5720::/32 | 4.3B × /64 | LACNIC | AR | 23rd Mar 2018 |
| 2803:5750::/32 | 4.3B × /64 | LACNIC |  PE | 17th Sept 2024 |
| 2803:57a0::/32 | 4.3B × /64 | LACNIC | AR | 25th Feb 2019 |
| 2803:57d0::/32 | 4.3B × /64 | LACNIC | AR | 7th Nov 2025 |
| 2803:57e0::/32 | 4.3B × /64 | LACNIC | AR | 27th Aug 2020 |
| 2803:5820::/32 | 4.3B × /64 | LACNIC | AR | 1st Sept 2017 |
| 2803:5830::/32 | 4.3B × /64 | LACNIC | AR | 9th Jan 2026 |
| 2803:5860::/32 | 4.3B × /64 | LACNIC | AR | 9th Apr 2019 |
| 2803:58a0::/32 | 4.3B × /64 | LACNIC |  PA | 23rd May 2018 |
| 2803:58b0::/32 | 4.3B × /64 | LACNIC | CL | 4th Nov 2026 |
| 2803:58c0::/32 | 4.3B × /64 | LACNIC | AR | 28th Sept 2016 |
| 2803:5920::/32 | 4.3B × /64 | LACNIC | AR | 18th Dec 2017 |
| 2803:5930::/32 | 4.3B × /64 | LACNIC | CL | 10th Jun 2026 |
| 2803:5950::/32 | 4.3B × /64 | LACNIC | AR | 24th May 2024 |
| 2803:5990::/32 | 4.3B × /64 | LACNIC | VE | 17th Feb 2023 |
| 2803:59c0::/32 | 4.3B × /64 | LACNIC |  EC | 20th Apr 2017 |
| 2803:5a0::/32 | 4.3B × /64 | LACNIC | VE | 19th Nov 2018 |
| 2803:5a50::/32 | 4.3B × /64 | LACNIC | PE | 22nd Feb 2024 |
| 2803:5a60::/32 | 4.3B × /64 | LACNIC |  PY | 6th Jun 2019 |
| 2803:5aa0::/32 | 4.3B × /64 | LACNIC | AR | 2nd Aug 2018 |
| 2803:5b00::/32 | 4.3B × /64 | LACNIC |  CR | 22nd May 2013 |
| 2803:5b60::/32 | 4.3B × /64 | LACNIC | AR | 11th Oct 2019 |
| 2803:5bc0::/32 | 4.3B × /64 | LACNIC | AR | 30th Jun 2017 |
| 2803:5bd0::/32 | 4.3B × /64 | LACNIC | AR | 17th Oct 2025 |
| 2803:5be0::/32 | 4.3B × /64 | LACNIC |  CO | 13th Aug 2020 |
| 2803:5c00::/32 | 4.3B × /64 | LACNIC |  BO | 14th May 2012 |
| 2803:5c0::/32 | 4.3B × /64 | LACNIC | AR | 26th Apr 2017 |
| 2803:5c10::/32 | 4.3B × /64 | LACNIC | AR | 11th Mar 2021 |
| 2803:5c60::/32 | 4.3B × /64 | LACNIC | EC | 13th May 2019 |
| 2803:5c90::/32 | 4.3B × /64 | LACNIC | AR | 10th Aug 2022 |
| 2803:5ca0::/32 | 4.3B × /64 | LACNIC | AR | 6th Jul 2018 |
| 2803:5cc0::/32 | 4.3B × /64 | LACNIC |  HN | 28th Nov 2016 |
| 2803:5d00::/32 | 4.3B × /64 | LACNIC |  SV | 5th Mar 2013 |
| 2803:5d50::/32 | 4.3B × /64 | LACNIC | VE | 9th Jul 2024 |
| 2803:5d60::/32 | 4.3B × /64 | LACNIC | PE | 9th Sept 2019 |
| 2803:5da0::/32 | 4.3B × /64 | LACNIC | HN | 14th Dec 2018 |
| 2803:5de0::/32 | 4.3B × /64 | LACNIC | AR | 10th Jul 2020 |
| 2803:5e0::/32 | 4.3B × /64 | LACNIC | AR | 5th Jun 2020 |
| 2803:5e80::/32 | 4.3B × /64 | LACNIC | AR | 15th May 2014 |
| 2803:5ea0::/32 | 4.3B × /64 | LACNIC | CO | 19th Sept 2018 |
| 2803:5ed0::/32 | 4.3B × /64 | LACNIC | VE | 12th May 2025 |
| 2803:5f10::/32 | 4.3B × /64 | LACNIC | AR | 13th Apr 2022 |
| 2803:5f20::/32 | 4.3B × /64 | LACNIC | AR | 18th Apr 2018 |
| 2803:5f40::/32 | 4.3B × /64 | LACNIC | AR | 9th Aug 2016 |
| 2803:5f50::/32 | 4.3B × /64 | LACNIC | AR | 4th Oct 2024 |
| 2803:5f60::/32 | 4.3B × /64 | LACNIC | AR | 14th Nov 2019 |