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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Thailand
14 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 141.195.112.0/22 | 1k | ARIN |  TH | 19th Dec 2023 |
| 23.140.40.0/24 | 256 | ARIN | TH | 19th Aug 2022 |
| 2602:f333::/40 | 16.8M × /64 | ARIN | TH | 31st Jul 2026 |
| 2602:f397::/40 | 16.8M × /64 | ARIN | TH | 8th Jun 2026 |
| 2602:f3a2::/40 | 16.8M × /64 | ARIN | TH | 1st Jun 2026 |
| 2602:f3b8::/40 | 16.8M × /64 | ARIN | TH | 19th May 2026 |
| 2602:f3f6::/40 | 16.8M × /64 | ARIN | TH | 13th Apr 2026 |
| 2602:f3f8::/40 | 16.8M × /64 | ARIN | TH | 10th Apr 2026 |
| 2602:f41d::/40 | 16.8M × /64 | ARIN | TH | 20th Mar 2026 |
| 2602:f42c::/40 | 16.8M × /64 | ARIN | TH | 13th Mar 2026 |
| 2602:f5f3::/40 | 16.8M × /64 | ARIN | TH | 8th Jul 2025 |
| 2602:f8f4::/40 | 16.8M × /64 | ARIN | TH | 10th May 2024 |
| 2602:f8f8::/40 | 16.8M × /64 | ARIN | TH | 7th May 2024 |
| 2602:f8fb::/40 | 16.8M × /64 | ARIN | TH | 7th May 2024 |