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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Argentina
828 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2803:c620::/32 | 4.3B × /64 | LACNIC |  AR | 31st Oct 2017 |
| 2803:c630::/32 | 4.3B × /64 | LACNIC | AR | 13th Apr 2026 |
| 2803:c6a0::/32 | 4.3B × /64 | LACNIC | AR | 17th Aug 2018 |
| 2803:c6c0::/32 | 4.3B × /64 | LACNIC | AR | 7th Feb 2017 |
| 2803:c740::/32 | 4.3B × /64 | LACNIC | AR | 21st Jun 2016 |
| 2803:c780::/32 | 4.3B × /64 | LACNIC | AR | 4th Dec 2014 |
| 2803:c860::/32 | 4.3B × /64 | LACNIC | AR | 2nd Apr 2019 |
| 2803:c920::/32 | 4.3B × /64 | LACNIC | AR | 7th Dec 2017 |
| 2803:c990::/32 | 4.3B × /64 | LACNIC | AR | 6th Feb 2023 |
| 2803:c9c0::/32 | 4.3B × /64 | LACNIC | AR | 6th Apr 2017 |
| 2803:ca00::/32 | 4.3B × /64 | LACNIC | AR | 9th Jul 2012 |
| 2803:ca40::/32 | 4.3B × /64 | LACNIC | AR | 12th Aug 2015 |
| 2803:cb30::/32 | 4.3B × /64 | LACNIC | AR | 12th Aug 2026 |
| 2803:cb60::/32 | 4.3B × /64 | LACNIC | AR | 4th Oct 2019 |
| 2803:cbe0::/32 | 4.3B × /64 | LACNIC | AR | 10th Aug 2020 |
| 2803:cc80::/32 | 4.3B × /64 | LACNIC | AR | 26th Nov 2013 |
| 2803:ccc0::/32 | 4.3B × /64 | LACNIC | AR | 11th Nov 2016 |
| 2803:cce0::/32 | 4.3B × /64 | LACNIC | AR | 16th Jan 2020 |
| 2803:cd00::/32 | 4.3B × /64 | LACNIC | AR | 13th Feb 2013 |
| 2803:cd10::/32 | 4.3B × /64 | LACNIC | AR | 10th Jan 2022 |
| 2803:cd20::/32 | 4.3B × /64 | LACNIC | AR | 15th Jan 2018 |
| 2803:cd30::/32 | 4.3B × /64 | LACNIC | AR | 6th Jul 2026 |
| 2803:cd40::/32 | 4.3B × /64 | LACNIC | AR | 15th Feb 2016 |
| 2803:cdd0::/32 | 4.3B × /64 | LACNIC | AR | 13th Aug 2025 |
| 2803:ce0::/32 | 4.3B × /64 | LACNIC | AR | 13th Jan 2020 |
| 2803:ce40::/32 | 4.3B × /64 | LACNIC | AR | 5th Oct 2015 |
| 2803:ce60::/32 | 4.3B × /64 | LACNIC | AR | 26th Jun 2019 |
| 2803:ce80::/32 | 4.3B × /64 | LACNIC | AR | 8th May 2014 |
| 2803:cea0::/32 | 4.3B × /64 | LACNIC | AR | 14th Sept 2018 |
| 2803:cf60::/32 | 4.3B × /64 | LACNIC | AR | 5th Nov 2019 |
| 2803:cf80::/32 | 4.3B × /64 | LACNIC | AR | 18th Feb 2015 |
| 2803:d0e0::/32 | 4.3B × /64 | LACNIC | AR | 29th Nov 2019 |
| 2803:d10::/32 | 4.3B × /64 | LACNIC | AR | 30th Dec 2021 |
| 2803:d160::/32 | 4.3B × /64 | LACNIC | AR | 25th Jul 2019 |
| 2803:d1d0::/32 | 4.3B × /64 | LACNIC | AR | 11th Jun 2025 |
| 2803:d240::/32 | 4.3B × /64 | LACNIC | AR | 3rd Aug 2015 |
| 2803:d2c0::/32 | 4.3B × /64 | LACNIC | AR | 3rd Jan 2017 |
| 2803:d30::/32 | 4.3B × /64 | LACNIC | AR | 2nd Jul 2026 |
| 2803:d310::/32 | 4.3B × /64 | LACNIC | AR | 7th Feb 2022 |
| 2803:d340::/32 | 4.3B × /64 | LACNIC | AR | 4th May 2016 |
| 2803:d360::/32 | 4.3B × /64 | LACNIC | AR | 30th Sept 2019 |
| 2803:d400::/32 | 4.3B × /64 | LACNIC | AR | 10th Apr 2012 |
| 2803:d410::/32 | 4.3B × /64 | LACNIC | AR | 2nd Feb 2021 |
| 2803:d420::/32 | 4.3B × /64 | LACNIC | AR | 18th Sept 2017 |
| 2803:d510::/32 | 4.3B × /64 | LACNIC | AR | 29th Dec 2021 |
| 2803:d530::/32 | 4.3B × /64 | LACNIC | AR | 26th Jun 2026 |
| 2803:d620::/32 | 4.3B × /64 | LACNIC | AR | 6th Nov 2017 |
| 2803:d660::/32 | 4.3B × /64 | LACNIC | AR | 13th Jun 2019 |
| 2803:d690::/32 | 4.3B × /64 | LACNIC | AR | 1st Nov 2022 |
| 2803:d6a0::/32 | 4.3B × /64 | LACNIC | AR | 31st Aug 2018 |