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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 ARIN, largest first.
Unannounced blocks in U.S. Virgin Islands
6 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 131.143.68.0/22 | 1k | ARIN |  VI | 13th Jan 2026 |
| 192.102.82.0/24 | 256 | ARIN | VI | 13th Mar 1991 |
| 2606:5a00::/32 | 4.3B × /64 | ARIN | VI | 2nd Jun 2014 |
| 2606:fd40::/32 | 4.3B × /64 | ARIN | VI | 30th Sept 2022 |
| 2607:8580::/32 | 4.3B × /64 | ARIN | VI | 11th Aug 2016 |
| 2607:f838::/32 | 4.3B × /64 | ARIN | VI | 23rd Feb 2009 |