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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 2801:1c:a000::/48 | 65.5k × /64 | LACNIC | 9th Jul 2014 | |
| 2801:1c:b000::/48 | 65.5k × /64 | LACNIC | 27th Oct 2017 | |
| 2801:1c:c000::/48 | 65.5k × /64 | LACNIC | 22nd Nov 2013 | |
| 2801:1c:c800::/48 | 65.5k × /64 | LACNIC | 23rd Dec 2019 | |
| 2801:1c:d000::/48 | 65.5k × /64 | LACNIC | 2nd Feb 2017 | |
| 2801:1c:e000::/48 | 65.5k × /64 | LACNIC | 19th Feb 2015 | |
| 2801:1c:f000::/48 | 65.5k × /64 | LACNIC | 28th Jun 2018 | |
| 2801:1d2::/44 | 1M × /64 | LACNIC | 26th Dec 2019 | |
| 2801:1d:1000::/48 | 65.5k × /64 | LACNIC | 16th Dec 2015 | |
| 2801:1d:1800::/48 | 65.5k × /64 | LACNIC | 10th Dec 2021 | |
| 2801:1d:2000::/48 | 65.5k × /64 | LACNIC | 6th Jun 2014 | |
| 2801:1d:3000::/48 | 65.5k × /64 | LACNIC | 27th Jul 2017 | |
| 2801:1d:3800::/48 | 65.5k × /64 | LACNIC | 12th Apr 2023 | |
| 2801:1d:4000::/48 | 65.5k × /64 | LACNIC | 17th Sept 2013 | |
| 2801:1d:5000::/48 | 65.5k × /64 | LACNIC | 15th Nov 2016 | |
| 2801:1d:5800::/48 | 65.5k × /64 | LACNIC | 19th Aug 2022 | |
| 2801:1d:6000::/48 | 65.5k × /64 | LACNIC | 28th Nov 2014 | |
| 2801:1d:6800::/48 | 65.5k × /64 | LACNIC | 29th Dec 2020 | |
| 2801:1d:7000::/48 | 65.5k × /64 | LACNIC | 27th Apr 2018 | |
| 2801:1d:7800::/48 | 65.5k × /64 | LACNIC | 23rd May 2024 | |
| 2801:1d:8000::/48 | 65.5k × /64 | LACNIC | 4th Jul 2013 | |
| 2801:1d:8400::/48 | 65.5k × /64 | LACNIC | 9th Jul 2026 | |
| 2801:1d:9800::/44 | 1M × /64 | LACNIC | 28th Oct 2022 | |
| 2801:1d::/48 | 65.5k × /64 | LACNIC | 27th Feb 2013 | |
| 2801:1d:a800::/48 | 65.5k × /64 | LACNIC | 30th Sept 2020 | |
| 2801:1d:b000::/48 | 65.5k × /64 | LACNIC | 23rd Jan 2018 | |
| 2801:1d:c000::/48 | 65.5k × /64 | LACNIC | 24th Feb 2014 | |
| 2801:1d:c800::/48 | 65.5k × /64 | LACNIC | 22nd Jan 2020 | |
| 2801:1d:d000::/48 | 65.5k × /64 | LACNIC | 28th Mar 2017 | |
| 2801:1d:e000::/48 | 65.5k × /64 | LACNIC | 3rd Jul 2015 | |
| 2801:1d:f000::/48 | 65.5k × /64 | LACNIC | 20th Sept 2018 | |
| 2801:1dc::/44 | 1M × /64 | LACNIC | 28th Mar 2019 | |
| 2801:1e:1000::/48 | 65.5k × /64 | LACNIC | 19th Oct 2015 | |
| 2801:1e:2000::/48 | 65.5k × /64 | LACNIC | 27th May 2014 | |
| 2801:1e:2800::/48 | 65.5k × /64 | LACNIC | 24th Apr 2020 | |
| 2801:1e:3000::/48 | 65.5k × /64 | LACNIC | 6th Jun 2017 | |
| 2801:1e:3800::/48 | 65.5k × /64 | LACNIC | 17th Mar 2023 | |
| 2801:1e:400::/48 | 65.5k × /64 | LACNIC | 17th Oct 2025 | |
| 2801:1e:5000::/48 | 65.5k × /64 | LACNIC | 25th Oct 2016 | |
| 2801:1e:8000::/48 | 65.5k × /64 | LACNIC | 24th Apr 2013 | |
| 2801:1e:8400::/48 | 65.5k × /64 | LACNIC | 4th May 2026 | |
| 2801:1e:8800::/48 | 65.5k × /64 | LACNIC | 10th Jul 2019 | |
| 2801:1e:9000::/48 | 65.5k × /64 | LACNIC | 13th Apr 2016 | |
| 2801:1e::/48 | 65.5k × /64 | LACNIC | 9th Jan 2013 | |
| 2801:1e:a000::/48 | 65.5k × /64 | LACNIC | 23rd Jul 2014 | |
| 2801:1e:a800::/48 | 65.5k × /64 | LACNIC | 15th Sept 2020 | |
| 2801:1e:b000::/48 | 65.5k × /64 | LACNIC | 28th Nov 2017 | |
| 2801:1e:c800::/48 | 65.5k × /64 | LACNIC | 2nd Jan 2020 | |
| 2801:1e:e000::/48 | 65.5k × /64 | LACNIC | 22nd Apr 2015 | |
| 2801:1e:f000::/48 | 65.5k × /64 | LACNIC | 29th Aug 2018 |