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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 45.68.84.0/22 | 1k | LACNIC |  BR | 25th Jun 2024 |
| 45.68.92.0/23 | 512 | LACNIC | BR | 6th Nov 2024 |
| 45.7.124.0/22 | 1k | LACNIC |  AR | 19th May 2017 |
| 45.7.132.0/22 | 1k | LACNIC |  CO | 24th May 2017 |
| 45.70.152.0/22 | 1k | LACNIC | AR | 1st Sept 2017 |