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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
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Countries with the most unannounced blocks, largest first.
Unannounced blocks in Indonesia
2,838 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.160.9.0/24 | 256 | APNIC |  ID | 10th Dec 2020 |
| 103.161.134.0/23 | 512 | APNIC | ID | 8th Jan 2021 |
| 103.161.160.0/24 | 256 | APNIC | ID | 12th Jan 2021 |
| 103.161.238.0/23 | 512 | APNIC | ID | 19th Jan 2021 |
| 103.161.76.0/24 | 256 | APNIC | ID | 5th Jan 2021 |
| 103.161.80.0/23 | 512 | APNIC | ID | 5th Jan 2021 |
| 103.161.84.0/23 | 512 | APNIC | ID | 6th Jan 2021 |
| 103.162.183.0/24 | 256 | APNIC | ID | 10th Feb 2021 |
| 103.163.115.0/24 | 256 | APNIC | ID | 26th Feb 2021 |
| 103.163.136.0/24 | 256 | APNIC | ID | 26th Feb 2021 |
| 103.163.176.0/24 | 256 | APNIC | ID | 2nd Mar 2021 |
| 103.163.228.0/23 | 512 | APNIC | ID | 4th Mar 2021 |
| 103.163.6.0/23 | 512 | APNIC | ID | 17th Feb 2021 |
| 103.163.82.0/23 | 512 | APNIC | ID | 24th Feb 2021 |
| 103.163.84.0/23 | 512 | APNIC | ID | 24th Feb 2021 |
| 103.163.86.0/23 | 512 | APNIC | ID | 24th Feb 2021 |
| 103.163.88.0/23 | 512 | APNIC | ID | 24th Feb 2021 |
| 103.164.148.0/23 | 512 | APNIC | ID | 19th Mar 2021 |
| 103.164.186.0/23 | 512 | APNIC | ID | 23rd Mar 2021 |
| 103.164.61.0/24 | 256 | APNIC | ID | 12th Mar 2021 |
| 103.164.68.0/23 | 512 | APNIC | ID | 15th Mar 2021 |
| 103.164.97.0/24 | 256 | APNIC | ID | 18th Mar 2021 |
| 103.165.0.0/23 | 512 | APNIC | ID | 25th Mar 2021 |
| 103.165.146.0/23 | 512 | APNIC | ID | 5th Apr 2021 |
| 103.166.178.0/24 | 256 | APNIC | ID | 28th Apr 2021 |
| 103.166.198.0/23 | 512 | APNIC | ID | 29th Apr 2021 |
| 103.167.142.0/23 | 512 | APNIC | ID | 26th May 2021 |
| 103.167.148.0/23 | 512 | APNIC | ID | 26th May 2021 |
| 103.168.153.0/24 | 256 | APNIC | ID | 17th Jun 2021 |
| 103.168.24.0/23 | 512 | APNIC | ID | 9th Jun 2021 |
| 103.169.0.0/23 | 512 | APNIC | ID | 24th Jun 2021 |
| 103.169.136.0/23 | 512 | APNIC | ID | 2nd Jul 2021 |
| 103.169.143.0/24 | 256 | APNIC | ID | 12th Sept 2023 |
| 103.169.199.0/24 | 256 | APNIC | ID | 9th Jul 2021 |
| 103.169.204.0/23 | 512 | APNIC | ID | 14th Jul 2021 |
| 103.169.48.0/23 | 512 | APNIC | ID | 28th Jun 2021 |
| 103.169.8.0/23 | 512 | APNIC | ID | 25th Jun 2021 |
| 103.172.176.0/23 | 512 | APNIC | ID | 2nd Sept 2021 |
| 103.172.194.0/23 | 512 | APNIC | ID | 3rd Sept 2021 |
| 103.172.96.0/24 | 256 | APNIC | ID | 25th Aug 2021 |
| 103.173.166.0/24 | 256 | APNIC | ID | 23rd Sept 2021 |
| 103.173.167.0/24 | 256 | APNIC | ID | 23rd Sept 2021 |
| 103.173.168.0/23 | 512 | APNIC | ID | 23rd Sept 2021 |
| 103.173.73.0/24 | 256 | APNIC | ID | 16th Sept 2021 |
| 103.174.14.0/23 | 512 | APNIC | ID | 5th Oct 2021 |
| 103.174.184.0/24 | 256 | APNIC | ID | 15th Oct 2021 |
| 103.174.66.0/24 | 256 | APNIC | ID | 7th Oct 2021 |
| 103.175.160.0/23 | 512 | APNIC | ID | 2nd Nov 2021 |
| 103.175.162.0/24 | 256 | APNIC | ID | 2nd Nov 2021 |
| 103.175.205.0/24 | 256 | APNIC | ID | 4th Nov 2021 |