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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 LACNIC, largest first.
Unannounced blocks registered through LACNIC
4,655 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2803:7400::/32 | 4.3B × /64 | LACNIC |  AR | 12th Apr 2012 |
| 2803:7410::/32 | 4.3B × /64 | LACNIC |  PE | 23rd Feb 2021 |
| 2803:7440::/32 | 4.3B × /64 | LACNIC | AR | 22nd Jun 2015 |
| 2803:7460::/32 | 4.3B × /64 | LACNIC | AR | 2nd May 2019 |
| 2803:7480::/32 | 4.3B × /64 | LACNIC | AR | 14th Nov 2013 |
| 2803:74c0::/32 | 4.3B × /64 | LACNIC |  PY | 6th Nov 2016 |
| 2803:7500::/32 | 4.3B × /64 | LACNIC |  CL | 30th Jan 2013 |
| 2803:750::/32 | 4.3B × /64 | LACNIC | AR | 5th Sept 2024 |
| 2803:7540::/32 | 4.3B × /64 | LACNIC | AR | 4th Feb 2016 |
| 2803:7550::/32 | 4.3B × /64 | LACNIC | AR | 21st Jun 2024 |
| 2803:7560::/32 | 4.3B × /64 | LACNIC | AR | 28th Aug 2019 |
| 2803:7580::/32 | 4.3B × /64 | LACNIC | AR | 25th Jul 2014 |
| 2803:75c0::/32 | 4.3B × /64 | LACNIC |  VE | 15th May 2017 |
| 2803:75d0::/32 | 4.3B × /64 | LACNIC | AR | 7th Aug 2025 |
| 2803:75e0::/32 | 4.3B × /64 | LACNIC | AR | 26th Jun 2020 |
| 2803:7620::/32 | 4.3B × /64 | LACNIC | AR | 9th Nov 2017 |
| 2803:7660::/32 | 4.3B × /64 | LACNIC | AR | 20th Jun 2019 |
| 2803:7680::/32 | 4.3B × /64 | LACNIC |  BO | 2nd May 2014 |
| 2803:76a0::/32 | 4.3B × /64 | LACNIC | CL | 6th Sept 2018 |
| 2803:7700::/32 | 4.3B × /64 | LACNIC | AR | 25th Jun 2013 |
| 2803:7720::/32 | 4.3B × /64 | LACNIC | AR | 5th Apr 2018 |
| 2803:77c0::/32 | 4.3B × /64 | LACNIC | AR | 14th Jul 2017 |
| 2803:77e0::/32 | 4.3B × /64 | LACNIC |  GY | 28th Aug 2020 |
| 2803:7840::/32 | 4.3B × /64 | LACNIC | AR | 20th May 2015 |
| 2803:78c0::/32 | 4.3B × /64 | LACNIC | AR | 5th Oct 2016 |
| 2803:78e0::/32 | 4.3B × /64 | LACNIC | AR | 23rd Dec 2019 |
| 2803:7920::/32 | 4.3B × /64 | LACNIC |  GT | 19th Dec 2017 |
| 2803:7930::/32 | 4.3B × /64 | LACNIC | VE | 17th Jun 2026 |
| 2803:7940::/32 | 4.3B × /64 | LACNIC | AR | 22nd Dec 2015 |
| 2803:7960::/32 | 4.3B × /64 | LACNIC | PY | 9th Aug 2019 |
| 2803:7980::/32 | 4.3B × /64 | LACNIC | VE | 1st Jul 2014 |
| 2803:79a0::/32 | 4.3B × /64 | LACNIC | AR | 15th Nov 2018 |
| 2803:79d0::/32 | 4.3B × /64 | LACNIC | PE | 8th Jul 2025 |
| 2803:79e0::/32 | 4.3B × /64 | LACNIC | CL | 5th Jun 2020 |
| 2803:7a0::/32 | 4.3B × /64 | LACNIC |  DO | 13th Feb 2019 |
| 2803:7a40::/32 | 4.3B × /64 | LACNIC | AR | 26th Aug 2015 |
| 2803:7a60::/32 | 4.3B × /64 | LACNIC | AR | 7th Jun 2019 |
| 2803:7aa0::/32 | 4.3B × /64 | LACNIC | CL | 14th Aug 2018 |
| 2803:7ad0::/32 | 4.3B × /64 | LACNIC |  EC | 8th Apr 2025 |
| 2803:7b00::/32 | 4.3B × /64 | LACNIC | CL | 28th May 2013 |
| 2803:7b10::/32 | 4.3B × /64 | LACNIC | DO | 16th Mar 2022 |
| 2803:7b40::/32 | 4.3B × /64 | LACNIC | CL | 9th Jun 2016 |
| 2803:7b60::/32 | 4.3B × /64 | LACNIC | AR | 16th Oct 2019 |
| 2803:7b80::/32 | 4.3B × /64 | LACNIC | PE | 12th Nov 2014 |
| 2803:7b90::/32 | 4.3B × /64 | LACNIC | PE | 7th Aug 2023 |
| 2803:7bc0::/32 | 4.3B × /64 | LACNIC |  PA | 5th Jul 2017 |
| 2803:7c0::/32 | 4.3B × /64 | LACNIC | AR | 6th Jul 2017 |
| 2803:7c20::/32 | 4.3B × /64 | LACNIC | EC | 5th Oct 2017 |
| 2803:7c30::/32 | 4.3B × /64 | LACNIC | AR | 26th Feb 2026 |
| 2803:7c60::/32 | 4.3B × /64 | LACNIC |  CO | 16th May 2019 |