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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
2,838 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.175.38.0/23 | 512 | APNIC |  ID | 26th Oct 2021 |
| 103.175.87.0/24 | 256 | APNIC | ID | 27th Oct 2021 |
| 103.176.104.0/23 | 512 | APNIC | ID | 15th Nov 2021 |
| 103.176.121.0/24 | 256 | APNIC | ID | 16th Nov 2021 |
| 103.176.28.0/23 | 512 | APNIC | ID | 10th Nov 2021 |
| 103.176.30.0/23 | 512 | APNIC | ID | 10th Nov 2021 |
| 103.176.32.0/23 | 512 | APNIC | ID | 10th Nov 2021 |
| 103.176.34.0/23 | 512 | APNIC | ID | 10th Nov 2021 |
| 103.176.36.0/23 | 512 | APNIC | ID | 10th Nov 2021 |
| 103.176.38.0/23 | 512 | APNIC | ID | 10th Nov 2021 |
| 103.176.40.0/23 | 512 | APNIC | ID | 10th Nov 2021 |
| 103.176.42.0/23 | 512 | APNIC | ID | 10th Nov 2021 |
| 103.176.44.0/23 | 512 | APNIC | ID | 10th Nov 2021 |
| 103.177.152.0/24 | 256 | APNIC | ID | 3rd Dec 2021 |
| 103.177.216.0/23 | 512 | APNIC | ID | 10th Dec 2021 |
| 103.177.255.0/24 | 256 | APNIC | ID | 14th Dec 2021 |
| 103.177.98.0/23 | 512 | APNIC | ID | 30th Nov 2021 |
| 103.178.148.0/23 | 512 | APNIC | ID | 27th Dec 2021 |
| 103.178.223.0/24 | 256 | APNIC | ID | 30th Dec 2021 |
| 103.178.224.0/23 | 512 | APNIC | ID | 30th Dec 2021 |
| 103.178.38.0/24 | 256 | APNIC | ID | 16th Dec 2021 |
| 103.179.136.0/23 | 512 | APNIC | ID | 13th Jan 2022 |
| 103.179.178.0/23 | 512 | APNIC | ID | 17th Jan 2022 |
| 103.179.74.0/23 | 512 | APNIC | ID | 10th Jan 2022 |
| 103.179.85.0/24 | 256 | APNIC | ID | 11th Jan 2022 |
| 103.179.88.0/24 | 256 | APNIC | ID | 11th Jan 2022 |
| 103.179.92.0/23 | 512 | APNIC | ID | 11th Jan 2022 |
| 103.18.153.0/24 | 256 | APNIC | ID | 18th Mar 2013 |
| 103.18.16.0/22 | 1k | APNIC | ID | 8th Mar 2013 |
| 103.18.190.0/23 | 512 | APNIC | ID | 22nd Mar 2013 |
| 103.18.240.0/24 | 256 | APNIC | ID | 22nd Mar 2013 |
| 103.181.195.0/24 | 256 | APNIC | ID | 15th Feb 2022 |
| 103.181.82.0/23 | 512 | APNIC | ID | 7th Feb 2022 |
| 103.182.136.0/23 | 512 | APNIC | ID | 23rd Feb 2022 |
| 103.182.99.0/24 | 256 | APNIC | ID | 22nd Feb 2022 |
| 103.183.252.0/24 | 256 | APNIC | ID | 16th Mar 2022 |
| 103.184.30.0/23 | 512 | APNIC | ID | 18th Mar 2022 |
| 103.184.48.0/23 | 512 | APNIC | ID | 22nd Mar 2022 |
| 103.185.196.0/24 | 256 | APNIC | ID | 31st Mar 2022 |
| 103.185.252.0/23 | 512 | APNIC | ID | 6th Apr 2022 |
| 103.185.48.0/23 | 512 | APNIC | ID | 28th Mar 2022 |
| 103.186.140.0/23 | 512 | APNIC | ID | 20th Apr 2022 |
| 103.186.2.0/23 | 512 | APNIC | ID | 6th Apr 2022 |
| 103.186.202.0/23 | 512 | APNIC | ID | 28th Apr 2022 |
| 103.187.224.0/23 | 512 | APNIC | ID | 19th May 2022 |
| 103.187.69.0/24 | 256 | APNIC | ID | 11th May 2022 |
| 103.188.118.0/24 | 256 | APNIC | ID | 26th May 2022 |
| 103.188.12.0/24 | 256 | APNIC | ID | 20th May 2022 |
| 103.188.13.0/24 | 256 | APNIC | ID | 20th May 2022 |
| 103.189.112.0/23 | 512 | APNIC | ID | 9th Jun 2022 |