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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 2803:4330::/32 | 4.3B × /64 | LACNIC |  VE | 28th Jul 2026 |
| 2803:4340::/32 | 4.3B × /64 | LACNIC |  CO | 22nd Mar 2016 |
| 2803:4360::/32 | 4.3B × /64 | LACNIC |  HN | 16th Sept 2019 |
| 2803:43a0::/32 | 4.3B × /64 | LACNIC |  CL | 28th Dec 2018 |
| 2803:43c0::/32 | 4.3B × /64 | LACNIC | CL | 1st Jun 2017 |
| 2803:43e0::/32 | 4.3B × /64 | LACNIC | CL | 22nd Jul 2020 |
| 2803:4400::/32 | 4.3B × /64 | LACNIC |  AR | 20th Mar 2012 |
| 2803:4410::/32 | 4.3B × /64 | LACNIC | CL | 15th Jan 2021 |
| 2803:4430::/32 | 4.3B × /64 | LACNIC | CL | 21st Jan 2026 |
| 2803:4490::/32 | 4.3B × /64 | LACNIC | VE | 23rd Jun 2022 |
| 2803:44a0::/32 | 4.3B × /64 | LACNIC | AR | 6th Jun 2018 |
| 2803:44c0::/32 | 4.3B × /64 | LACNIC |  BZ | 18th Oct 2016 |
| 2803:4540::/32 | 4.3B × /64 | LACNIC | HN | 30th Dec 2015 |
| 2803:4550::/32 | 4.3B × /64 | LACNIC | AR | 6th Jun 2024 |
| 2803:4560::/32 | 4.3B × /64 | LACNIC | AR | 14th Aug 2019 |
| 2803:460::/32 | 4.3B × /64 | LACNIC | AR | 10th Apr 2019 |
| 2803:4610::/32 | 4.3B × /64 | LACNIC | VE | 14th Jul 2021 |
| 2803:4620::/32 | 4.3B × /64 | LACNIC | CO | 30th Oct 2017 |
| 2803:4630::/32 | 4.3B × /64 | LACNIC | CO | 13th Apr 2026 |
| 2803:4650::/32 | 4.3B × /64 | LACNIC | CO | 4th Mar 2024 |
| 2803:4660::/32 | 4.3B × /64 | LACNIC | AR | 10th Jun 2019 |
| 2803:46c0::/32 | 4.3B × /64 | LACNIC |  EC | 6th Feb 2017 |
| 2803:4710::/32 | 4.3B × /64 | LACNIC |  PA | 23rd Mar 2022 |
| 2803:4720::/32 | 4.3B × /64 | LACNIC | CL | 19th Mar 2018 |
| 2803:4740::/32 | 4.3B × /64 | LACNIC | VE | 20th Jun 2016 |
| 2803:4760::/32 | 4.3B × /64 | LACNIC | AR | 22nd Oct 2019 |
| 2803:47a0::/32 | 4.3B × /64 | LACNIC | AR | 15th Feb 2019 |
| 2803:47d0::/32 | 4.3B × /64 | LACNIC | HN | 28th Oct 2025 |
| 2803:48b0::/32 | 4.3B × /64 | LACNIC | AR | 22nd Oct 2026 |
| 2803:48c0::/32 | 4.3B × /64 | LACNIC |  GT | 20th Sept 2016 |
| 2803:4900::/32 | 4.3B × /64 | LACNIC |  BQ | 23rd Oct 2012 |
| 2803:4910::/32 | 4.3B × /64 | LACNIC |  CR | 22nd Oct 2021 |
| 2803:4920::/32 | 4.3B × /64 | LACNIC | CR | 6th Dec 2017 |
| 2803:4930::/32 | 4.3B × /64 | LACNIC | CO | 2nd Jun 2026 |
| 2803:4940::/32 | 4.3B × /64 | LACNIC | AR | 20th Nov 2015 |
| 2803:4960::/32 | 4.3B × /64 | LACNIC | CL | 30th Jul 2019 |
| 2803:4980::/32 | 4.3B × /64 | LACNIC | AR | 15th Jun 2014 |
| 2803:49c0::/32 | 4.3B × /64 | LACNIC | AR | 4th Apr 2017 |
| 2803:4aa0::/32 | 4.3B × /64 | LACNIC | CL | 27th Jul 2018 |
| 2803:4ac0::/32 | 4.3B × /64 | LACNIC |  BO | 11th Jan 2017 |
| 2803:4b10::/32 | 4.3B × /64 | LACNIC | EC | 16th Feb 2022 |
| 2803:4b40::/32 | 4.3B × /64 | LACNIC | AR | 11th May 2016 |
| 2803:4b60::/32 | 4.3B × /64 | LACNIC | AR | 3rd Oct 2019 |
| 2803:4b90::/32 | 4.3B × /64 | LACNIC |  PE | 7th Jul 2023 |
| 2803:4ba0::/32 | 4.3B × /64 | LACNIC | PE | 22nd Jan 2019 |
| 2803:4bd0::/32 | 4.3B × /64 | LACNIC | CL | 7th Oct 2025 |
| 2803:4c00::/32 | 4.3B × /64 | LACNIC | EC | 19th Apr 2012 |
| 2803:4c40::/32 | 4.3B × /64 | LACNIC | AR | 25th Jun 2015 |
| 2803:4c80::/32 | 4.3B × /64 | LACNIC | AR | 21st Nov 2013 |
| 2803:4c90::/32 | 4.3B × /64 | LACNIC | AR | 25th Jul 2022 |