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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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.
Browse by registry
Browse by country
Countries with the most unannounced blocks, largest first.
Unannounced blocks in Indonesia
2,882 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 160.236.92.0/23 | 512 | APNIC |  ID | 13th Jul 2026 |
| 160.25.126.0/23 | 512 | APNIC | ID | 5th Jul 2024 |
| 160.25.153.0/24 | 256 | APNIC | ID | 10th Jul 2024 |
| 160.25.204.0/23 | 512 | APNIC | ID | 16th Jul 2024 |
| 160.25.246.0/23 | 512 | APNIC | ID | 18th Jul 2024 |
| 160.250.112.0/23 | 512 | APNIC | ID | 29th Nov 2024 |
| 160.250.35.0/24 | 256 | APNIC | ID | 25th Nov 2024 |
| 161.248.107.0/24 | 256 | APNIC | ID | 8th Jan 2025 |
| 161.248.195.0/24 | 256 | APNIC | ID | 16th Jan 2025 |
| 162.4.107.0/24 | 256 | APNIC | ID | 13th May 2026 |
| 162.4.167.0/24 | 256 | APNIC | ID | 25th May 2026 |
| 162.4.239.0/24 | 256 | APNIC | ID | 12th Jun 2026 |
| 162.4.242.0/24 | 256 | APNIC | ID | 12th Jun 2026 |
| 162.4.30.0/23 | 512 | APNIC | ID | 22nd Apr 2026 |
| 162.4.62.0/24 | 256 | APNIC | ID | 30th Apr 2026 |
| 162.4.90.0/23 | 512 | APNIC | ID | 7th May 2026 |
| 163.128.158.0/23 | 512 | APNIC | ID | 7th Apr 2026 |
| 163.128.17.0/24 | 256 | APNIC | ID | 6th Mar 2026 |
| 163.128.20.0/24 | 256 | APNIC | ID | 6th Mar 2026 |
| 163.128.58.0/23 | 512 | APNIC | ID | 16th Mar 2026 |
| 163.128.70.0/23 | 512 | APNIC | ID | 17th Mar 2026 |
| 163.128.82.0/23 | 512 | APNIC | ID | 18th Mar 2026 |
| 163.128.88.0/23 | 512 | APNIC | ID | 19th Mar 2026 |
| 163.223.100.0/24 | 256 | APNIC | ID | 13th Mar 2025 |
| 163.223.97.0/24 | 256 | APNIC | ID | 13th Mar 2025 |
| 163.227.166.0/24 | 256 | APNIC | ID | 27th Apr 2025 |
| 163.227.201.0/24 | 256 | APNIC | ID | 1st May 2025 |
| 163.227.49.0/24 | 256 | APNIC | ID | 11th Apr 2025 |
| 163.227.94.0/24 | 256 | APNIC | ID | 17th Apr 2025 |
| 163.47.22.0/24 | 256 | APNIC | ID | 22nd Jan 2025 |
| 163.52.12.0/24 | 256 | APNIC | ID | 18th Aug 2026 |
| 163.52.130.0/23 | 512 | APNIC | ID | 8th Sept 2026 |
| 163.52.137.0/24 | 256 | APNIC | ID | 8th Sept 2026 |
| 163.52.145.0/24 | 256 | APNIC | ID | 9th Sept 2026 |
| 163.52.164.0/23 | 512 | APNIC | ID | 11th Sept 2026 |
| 163.52.200.0/23 | 512 | APNIC | ID | 17th Sept 2026 |
| 163.52.203.0/24 | 256 | APNIC | ID | 17th Sept 2026 |
| 163.52.206.0/24 | 256 | APNIC | ID | 17th Sept 2026 |
| 163.52.216.0/24 | 256 | APNIC | ID | 18th Sept 2026 |
| 163.52.226.0/23 | 512 | APNIC | ID | 21st Sept 2026 |
| 163.52.71.0/24 | 256 | APNIC | ID | 28th Aug 2026 |
| 163.61.158.0/24 | 256 | APNIC | ID | 19th Feb 2025 |
| 163.61.210.0/23 | 512 | APNIC | ID | 21st Feb 2025 |
| 163.61.254.0/24 | 256 | APNIC | ID | 3rd Mar 2025 |
| 163.61.56.0/23 | 512 | APNIC | ID | 5th Feb 2025 |
| 163.61.76.0/24 | 256 | APNIC | ID | 6th Feb 2025 |
| 165.101.202.0/23 | 512 | APNIC | ID | 15th Jul 2025 |
| 165.101.31.0/24 | 256 | APNIC | ID | 19th Jun 2025 |
| 165.101.84.0/24 | 256 | APNIC | ID | 27th Jun 2025 |
| 165.99.107.0/24 | 256 | APNIC | ID | 22nd May 2025 |