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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
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Countries with the most unannounced blocks, largest first.
Unannounced blocks in Argentina
847 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2803:a890::/32 | 4.3B × /64 | LACNIC |  AR | 31st May 2022 |
| 2803:a8e0::/32 | 4.3B × /64 | LACNIC | AR | 11th Dec 2019 |
| 2803:a900::/32 | 4.3B × /64 | LACNIC | AR | 6th Nov 2012 |
| 2803:a90::/32 | 4.3B × /64 | LACNIC | AR | 16th Sept 2022 |
| 2803:aa10::/32 | 4.3B × /64 | LACNIC | AR | 18th Jun 2021 |
| 2803:aa40::/32 | 4.3B × /64 | LACNIC | AR | 13th Aug 2015 |
| 2803:aa90::/32 | 4.3B × /64 | LACNIC | AR | 22nd Sept 2022 |
| 2803:aaa0::/32 | 4.3B × /64 | LACNIC | AR | 31st Jul 2018 |
| 2803:aac0::/32 | 4.3B × /64 | LACNIC | AR | 20th Jan 2017 |
| 2803:abd0::/32 | 4.3B × /64 | LACNIC | AR | 7th Oct 2025 |
| 2803:ac20::/32 | 4.3B × /64 | LACNIC | AR | 26th Sept 2017 |
| 2803:aca0::/32 | 4.3B × /64 | LACNIC | AR | 27th Jun 2018 |
| 2803:ad00::/32 | 4.3B × /64 | LACNIC | AR | 15th Feb 2013 |
| 2803:ad30::/32 | 4.3B × /64 | LACNIC | AR | 8th Jul 2026 |
| 2803:ad90::/32 | 4.3B × /64 | LACNIC | AR | 2nd May 2023 |
| 2803:ae00::/32 | 4.3B × /64 | LACNIC | AR | 10th Sept 2012 |
| 2803:af20::/32 | 4.3B × /64 | LACNIC | AR | 13th Apr 2018 |
| 2803:afa0::/32 | 4.3B × /64 | LACNIC | AR | 8th Mar 2019 |
| 2803:afc0::/32 | 4.3B × /64 | LACNIC | AR | 1st Aug 2017 |
| 2803:afe0::/32 | 4.3B × /64 | LACNIC | AR | 1st Sept 2020 |
| 2803:b010::/32 | 4.3B × /64 | LACNIC | AR | 6th Oct 2020 |
| 2803:b020::/32 | 4.3B × /64 | LACNIC | AR | 21st Aug 2017 |
| 2803:b1d0::/32 | 4.3B × /64 | LACNIC | AR | 16th Jun 2025 |
| 2803:b20::/32 | 4.3B × /64 | LACNIC | AR | 20th Feb 2018 |
| 2803:b250::/32 | 4.3B × /64 | LACNIC | AR | 23rd Jan 2024 |
| 2803:b260::/32 | 4.3B × /64 | LACNIC | AR | 29th May 2019 |
| 2803:b2e0::/32 | 4.3B × /64 | LACNIC | AR | 5th Feb 2020 |
| 2803:b360::/32 | 4.3B × /64 | LACNIC | AR | 30th Sept 2019 |
| 2803:b380::/32 | 4.3B × /64 | LACNIC | AR | 24th Sept 2014 |
| 2803:b4a0::/32 | 4.3B × /64 | LACNIC | AR | 13th Jun 2018 |
| 2803:b5e0::/32 | 4.3B × /64 | LACNIC | AR | 24th Jun 2020 |
| 2803:b620::/32 | 4.3B × /64 | LACNIC | AR | 9th Nov 2017 |
| 2803:b680::/32 | 4.3B × /64 | LACNIC | AR | 30th Apr 2014 |
| 2803:b690::/32 | 4.3B × /64 | LACNIC | AR | 7th Nov 2022 |
| 2803:b6c0::/32 | 4.3B × /64 | LACNIC | AR | 20th Feb 2017 |
| 2803:b740::/32 | 4.3B × /64 | LACNIC | AR | 21st Jul 2016 |
| 2803:b7c0::/32 | 4.3B × /64 | LACNIC | AR | 13th Jul 2017 |
| 2803:b880::/32 | 4.3B × /64 | LACNIC | AR | 23rd Oct 2013 |
| 2803:b890::/32 | 4.3B × /64 | LACNIC | AR | 22nd Jun 2022 |
| 2803:b8e0::/32 | 4.3B × /64 | LACNIC | AR | 20th Dec 2019 |
| 2803:b960::/32 | 4.3B × /64 | LACNIC | AR | 9th Aug 2019 |
| 2803:ba20::/32 | 4.3B × /64 | LACNIC | AR | 27th Oct 2017 |
| 2803:bac0::/32 | 4.3B × /64 | LACNIC | AR | 27th Jan 2017 |
| 2803:bad0::/32 | 4.3B × /64 | LACNIC | AR | 31st Mar 2025 |
| 2803:bb00::/32 | 4.3B × /64 | LACNIC | AR | 24th May 2013 |
| 2803:bb10::/32 | 4.3B × /64 | LACNIC | AR | 10th Mar 2022 |
| 2803:bb20::/32 | 4.3B × /64 | LACNIC | AR | 12th Mar 2018 |
| 2803:bb90::/32 | 4.3B × /64 | LACNIC | AR | 7th Aug 2023 |
| 2803:bc10::/32 | 4.3B × /64 | LACNIC | AR | 16th Mar 2021 |
| 2803:bc90::/32 | 4.3B × /64 | LACNIC | AR | 10th Aug 2022 |