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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 2803:5410::/32 | 4.3B × /64 | LACNIC |  AR | 2nd Feb 2021 |
| 2803:5490::/32 | 4.3B × /64 | LACNIC | AR | 15th Jul 2022 |
| 2803:54d0::/32 | 4.3B × /64 | LACNIC | AR | 23rd Dec 2024 |
| 2803:54e0::/32 | 4.3B × /64 | LACNIC | AR | 7th Jan 2020 |
| 2803:5540::/32 | 4.3B × /64 | LACNIC | AR | 27th Jan 2016 |
| 2803:560::/32 | 4.3B × /64 | LACNIC | AR | 13th Aug 2019 |
| 2803:5660::/32 | 4.3B × /64 | LACNIC | AR | 13th Jun 2019 |
| 2803:5690::/32 | 4.3B × /64 | LACNIC | AR | 31st Oct 2022 |
| 2803:5720::/32 | 4.3B × /64 | LACNIC | AR | 23rd Mar 2018 |
| 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 |
| 2803:58c0::/32 | 4.3B × /64 | LACNIC | AR | 28th Sept 2016 |
| 2803:5920::/32 | 4.3B × /64 | LACNIC | AR | 18th Dec 2017 |
| 2803:5950::/32 | 4.3B × /64 | LACNIC | AR | 24th May 2024 |
| 2803:5aa0::/32 | 4.3B × /64 | LACNIC | AR | 2nd Aug 2018 |
| 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 |
| 2803:5c0::/32 | 4.3B × /64 | LACNIC | AR | 26th Apr 2017 |
| 2803:5c10::/32 | 4.3B × /64 | LACNIC | AR | 11th Mar 2021 |
| 2803:5c90::/32 | 4.3B × /64 | LACNIC | AR | 10th Aug 2022 |
| 2803:5ca0::/32 | 4.3B × /64 | LACNIC | AR | 6th Jul 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 |
| 2803:5f20::/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 |
| 2803:5fc0::/32 | 4.3B × /64 | LACNIC | AR | 3rd Aug 2017 |
| 2803:6010::/32 | 4.3B × /64 | LACNIC | AR | 16th Sept 2020 |
| 2803:6020::/32 | 4.3B × /64 | LACNIC | AR | 17th Aug 2017 |
| 2803:6040::/32 | 4.3B × /64 | LACNIC | AR | 6th Apr 2015 |
| 2803:6060::/32 | 4.3B × /64 | LACNIC | AR | 26th Mar 2019 |
| 2803:60::/32 | 4.3B × /64 | LACNIC | AR | 19th Mar 2019 |
| 2803:60e0::/32 | 4.3B × /64 | LACNIC | AR | 25th Nov 2019 |
| 2803:6160::/32 | 4.3B × /64 | LACNIC | AR | 23rd Jul 2019 |
| 2803:61a0::/32 | 4.3B × /64 | LACNIC | AR | 2nd Oct 2018 |
| 2803:61e0::/32 | 4.3B × /64 | LACNIC | AR | 18th May 2020 |
| 2803:6220::/32 | 4.3B × /64 | LACNIC | AR | 9th Oct 2017 |
| 2803:6230::/32 | 4.3B × /64 | LACNIC | AR | 6th Mar 2026 |
| 2803:6260::/32 | 4.3B × /64 | LACNIC | AR | 24th May 2019 |
| 2803:62a0::/32 | 4.3B × /64 | LACNIC | AR | 17th Jul 2018 |
| 2803:63c0::/32 | 4.3B × /64 | LACNIC | AR | 1st Jun 2017 |
| 2803:640::/32 | 4.3B × /64 | LACNIC | AR | 28th Aug 2015 |
| 2803:64c0::/32 | 4.3B × /64 | LACNIC | AR | 25th Oct 2016 |