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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
2,822 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.10.184.0/22 | 1k | APNIC |  ID | 27th Jul 2011 |
| 103.10.192.0/23 | 512 | APNIC | ID | 21st Sept 2022 |
| 103.100.195.0/24 | 256 | APNIC | ID | 12th Sept 2017 |
| 103.100.85.0/24 | 256 | APNIC | ID | 6th Sept 2017 |
| 103.101.140.0/23 | 512 | APNIC | ID | 2nd Mar 2023 |
| 103.101.154.0/23 | 512 | APNIC | ID | 27th Sept 2017 |
| 103.101.20.0/22 | 1k | APNIC | ID | 14th Sept 2017 |
| 103.101.66.0/23 | 512 | APNIC | ID | 19th Sept 2017 |
| 103.101.95.0/24 | 256 | APNIC | ID | 26th Sept 2017 |
| 103.103.24.0/22 | 1k | APNIC | ID | 27th Oct 2017 |
| 103.103.30.0/23 | 512 | APNIC | ID | 27th Oct 2017 |
| 103.104.10.0/24 | 256 | APNIC | ID | 15th Nov 2017 |
| 103.105.189.0/24 | 256 | APNIC | ID | 13th Dec 2017 |
| 103.105.192.0/22 | 1k | APNIC | ID | 13th Dec 2017 |
| 103.105.199.0/24 | 256 | APNIC | ID | 14th Dec 2017 |
| 103.105.8.0/23 | 512 | APNIC | ID | 6th Mar 2023 |
| 103.106.74.0/23 | 512 | APNIC | ID | 20th Dec 2017 |
| 103.107.141.0/24 | 256 | APNIC | ID | 15th Jan 2018 |
| 103.108.119.0/24 | 256 | APNIC | ID | 29th Jan 2018 |
| 103.108.173.0/24 | 256 | APNIC | ID | 1st Feb 2018 |
| 103.109.149.0/24 | 256 | APNIC | ID | 8th Dec 2022 |
| 103.109.247.0/24 | 256 | APNIC | ID | 23rd Feb 2018 |
| 103.11.148.0/23 | 512 | APNIC | ID | 26th Oct 2011 |
| 103.11.176.0/23 | 512 | APNIC | ID | 28th Oct 2011 |
| 103.11.223.0/24 | 256 | APNIC | ID | 9th Nov 2011 |
| 103.11.252.0/22 | 1k | APNIC | ID | 4th Nov 2011 |
| 103.110.120.0/22 | 1k | APNIC | ID | 5th Mar 2018 |
| 103.110.223.0/24 | 256 | APNIC | ID | 9th Mar 2018 |
| 103.110.74.0/24 | 256 | APNIC | ID | 28th Feb 2018 |
| 103.110.76.0/23 | 512 | APNIC | ID | 28th Feb 2018 |
| 103.111.104.0/22 | 1k | APNIC | ID | 15th Mar 2018 |
| 103.111.125.0/24 | 256 | APNIC | ID | 16th Mar 2018 |
| 103.111.140.0/22 | 1k | APNIC | ID | 16th Mar 2018 |
| 103.111.148.0/22 | 1k | APNIC | ID | 16th Mar 2018 |
| 103.111.152.0/22 | 1k | APNIC | ID | 16th Mar 2018 |
| 103.111.220.0/22 | 1k | APNIC | ID | 20th Mar 2018 |
| 103.112.196.0/22 | 1k | APNIC | ID | 4th Apr 2018 |
| 103.112.233.0/24 | 256 | APNIC | ID | 5th Apr 2018 |
| 103.112.246.0/23 | 512 | APNIC | ID | 6th Apr 2018 |
| 103.113.166.0/23 | 512 | APNIC | ID | 8th Aug 2022 |
| 103.113.212.0/24 | 256 | APNIC | ID | 14th Dec 2022 |
| 103.113.248.0/23 | 512 | APNIC | ID | 18th Apr 2018 |
| 103.115.228.0/22 | 1k | APNIC | ID | 23rd May 2018 |
| 103.115.35.0/24 | 256 | APNIC | ID | 16th Dec 2022 |
| 103.116.135.0/24 | 256 | APNIC | ID | 31st May 2018 |
| 103.116.252.0/22 | 1k | APNIC | ID | 11th Jun 2018 |
| 103.119.114.0/24 | 256 | APNIC | ID | 20th Jul 2018 |
| 103.119.204.0/22 | 1k | APNIC | ID | 26th Jul 2018 |
| 103.119.40.0/22 | 1k | APNIC | ID | 17th Jul 2018 |
| 103.12.167.0/24 | 256 | APNIC | ID | 17th Jul 2012 |