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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
4,655 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2806:474::/32 | 4.3B × /64 | LACNIC |  MX | 10th Aug 2026 |
| 2806:475::/32 | 4.3B × /64 | LACNIC | MX | 10th Aug 2026 |
| 2806:477::/32 | 4.3B × /64 | LACNIC | MX | 10th Aug 2026 |
| 2806:478::/32 | 4.3B × /64 | LACNIC | MX | 17th Aug 2026 |
| 2806:479::/32 | 4.3B × /64 | LACNIC | MX | 17th Aug 2026 |
| 2806:47b::/32 | 4.3B × /64 | LACNIC | MX | 17th Aug 2026 |
| 2806:47d::/32 | 4.3B × /64 | LACNIC | MX | 19th Aug 2026 |
| 45.160.196.0/22 | 1k | LACNIC |  AR | 17th Aug 2018 |
| 45.160.212.0/23 | 512 | LACNIC |  CL | 14th Aug 2018 |
| 45.160.214.0/24 | 256 | LACNIC | CL | 14th Aug 2018 |
| 45.161.152.0/22 | 1k | LACNIC |  BR | 22nd Aug 2018 |
| 45.162.127.0/24 | 256 | LACNIC | BR | 9th Oct 2018 |
| 45.162.85.0/24 | 256 | LACNIC |  CO | 2nd Oct 2018 |
| 45.163.124.0/22 | 1k | LACNIC | MX | 10th Oct 2018 |
| 45.163.20.0/22 | 1k | LACNIC | AR | 27th Sept 2018 |
| 45.164.206.0/24 | 256 | LACNIC | BR | 24th Mar 2023 |
| 45.165.36.0/22 | 1k | LACNIC | AR | 29th Oct 2018 |
| 45.167.192.0/22 | 1k | LACNIC | CL | 29th Nov 2018 |
| 45.168.104.0/22 | 1k | LACNIC | CO | 12th Dec 2018 |
| 45.168.81.0/24 | 256 | LACNIC | BR | 3rd Dec 2018 |
| 45.169.182.0/23 | 512 | LACNIC | BR | 21st Jan 2019 |
| 45.169.236.0/22 | 1k | LACNIC | MX | 17th Jan 2019 |
| 45.171.48.0/23 | 512 | LACNIC | CL | 18th Feb 2019 |
| 45.172.219.0/24 | 256 | LACNIC | AR | 2nd Apr 2019 |
| 45.173.32.0/22 | 1k | LACNIC | BR | 21st Mar 2019 |
| 45.173.47.0/24 | 256 | LACNIC | BR | 21st May 2019 |
| 45.174.104.0/22 | 1k | LACNIC | CL | 3rd Apr 2019 |
| 45.174.16.0/22 | 1k | LACNIC | BR | 18th Apr 2019 |
| 45.174.224.0/23 | 512 | LACNIC | CO | 26th Apr 2019 |
| 45.175.240.0/22 | 1k | LACNIC | BR | 13th May 2019 |
| 45.177.198.0/24 | 256 | LACNIC | MX | 21st Jun 2019 |
| 45.177.54.0/24 | 256 | LACNIC | CO | 30th May 2019 |
| 45.177.64.0/22 | 1k | LACNIC | AR | 28th May 2019 |
| 45.178.216.0/22 | 1k | LACNIC | BR | 19th Jun 2019 |
| 45.178.32.0/22 | 1k | LACNIC | BR | 4th Jun 2019 |
| 45.178.4.0/22 | 1k | LACNIC | CO | 11th Jun 2019 |
| 45.178.64.0/22 | 1k | LACNIC | CO | 20th Jun 2019 |
| 45.179.199.0/24 | 256 | LACNIC | BR | 1st Jul 2019 |
| 45.180.176.0/23 | 512 | LACNIC | AR | 28th Aug 2019 |
| 45.182.142.0/24 | 256 | LACNIC |  NI | 19th Aug 2019 |
| 45.182.143.0/24 | 256 | LACNIC | AR | 14th Aug 2019 |
| 45.182.64.0/22 | 1k | LACNIC | BR | 12th Aug 2019 |
| 45.183.108.0/22 | 1k | LACNIC |  PE | 9th Sept 2019 |
| 45.183.120.0/23 | 512 | LACNIC |  DO | 26th Nov 2024 |
| 45.184.116.0/22 | 1k | LACNIC | AR | 17th Sept 2019 |
| 45.184.132.0/22 | 1k | LACNIC | DO | 14th Oct 2019 |
| 45.184.144.0/22 | 1k | LACNIC | BR | 10th Sept 2019 |
| 45.185.149.0/24 | 256 | LACNIC | BR | 22nd Oct 2019 |
| 45.185.43.0/24 | 256 | LACNIC |  CR | 23rd Sept 2019 |
| 45.186.143.0/24 | 256 | LACNIC | BR | 12th Nov 2019 |