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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 103.189.204.0/23 | 512 | APNIC |  ID | 16th Jun 2022 |
| 103.189.229.0/24 | 256 | APNIC | ID | 20th Jun 2022 |
| 103.189.64.0/23 | 512 | APNIC | ID | 6th Jun 2022 |
| 103.19.156.0/23 | 512 | APNIC | ID | 14th Oct 2022 |
| 103.19.158.0/23 | 512 | APNIC | ID | 14th Oct 2022 |
| 103.19.184.0/22 | 1k | APNIC | ID | 4th Apr 2013 |
| 103.19.204.0/22 | 1k | APNIC | ID | 5th Apr 2013 |
| 103.190.110.0/24 | 256 | APNIC | ID | 1st Jul 2022 |
| 103.191.157.0/24 | 256 | APNIC | ID | 20th Jul 2022 |
| 103.191.70.0/23 | 512 | APNIC | ID | 13th Jul 2022 |
| 103.191.94.0/24 | 256 | APNIC | ID | 14th Jul 2022 |
| 103.194.130.0/24 | 256 | APNIC | ID | 11th Aug 2015 |
| 103.195.156.0/22 | 1k | APNIC | ID | 11th Sept 2015 |
| 103.195.164.0/22 | 1k | APNIC | ID | 11th Sept 2015 |
| 103.195.29.0/24 | 256 | APNIC | ID | 4th Sept 2015 |
| 103.198.116.0/22 | 1k | APNIC | ID | 19th Oct 2015 |
| 103.198.131.0/24 | 256 | APNIC | ID | 21st Oct 2015 |
| 103.199.118.0/24 | 256 | APNIC | ID | 26th Oct 2015 |
| 103.199.236.0/22 | 1k | APNIC | ID | 11th Nov 2015 |
| 103.20.106.0/23 | 512 | APNIC | ID | 14th Sept 2012 |
| 103.20.166.0/23 | 512 | APNIC | ID | 19th Sept 2012 |
| 103.20.21.0/24 | 256 | APNIC | ID | 10th Sept 2012 |
| 103.202.226.0/24 | 256 | APNIC | ID | 23rd Feb 2023 |
| 103.203.189.0/24 | 256 | APNIC | ID | 3rd Dec 2015 |
| 103.203.248.0/23 | 512 | APNIC | ID | 17th May 2023 |
| 103.204.116.0/24 | 256 | APNIC | ID | 27th Feb 2023 |
| 103.208.160.0/22 | 1k | APNIC | ID | 5th Feb 2016 |
| 103.208.23.0/24 | 256 | APNIC | ID | 4th Feb 2016 |
| 103.209.95.0/24 | 256 | APNIC | ID | 17th Feb 2016 |
| 103.21.212.0/22 | 1k | APNIC | ID | 18th Oct 2012 |
| 103.21.224.0/22 | 1k | APNIC | ID | 22nd Oct 2012 |
| 103.210.209.0/24 | 256 | APNIC | ID | 8th Mar 2023 |
| 103.210.228.0/22 | 1k | APNIC | ID | 4th Mar 2016 |
| 103.210.70.0/23 | 512 | APNIC | ID | 26th May 2023 |
| 103.211.196.0/24 | 256 | APNIC | ID | 9th Mar 2023 |
| 103.212.233.0/24 | 256 | APNIC | ID | 1st Apr 2016 |
| 103.214.120.0/23 | 512 | APNIC | ID | 12th Apr 2016 |
| 103.215.62.0/23 | 512 | APNIC | ID | 7th Jun 2023 |
| 103.217.76.0/24 | 256 | APNIC | ID | 20th Mar 2023 |
| 103.219.254.0/23 | 512 | APNIC | ID | 24th May 2016 |
| 103.22.132.0/22 | 1k | APNIC | ID | 15th Jun 2011 |
| 103.22.164.0/23 | 512 | APNIC | ID | 20th Jun 2011 |
| 103.22.232.0/23 | 512 | APNIC | ID | 25th May 2011 |
| 103.220.112.0/24 | 256 | APNIC | ID | 27th May 2016 |
| 103.224.140.0/23 | 512 | APNIC | ID | 20th Jan 2014 |
| 103.224.176.0/22 | 1k | APNIC | ID | 23rd Jan 2014 |
| 103.224.78.0/23 | 512 | APNIC | ID | 3rd Oct 2023 |
| 103.225.16.0/24 | 256 | APNIC | ID | 16th Jun 2023 |
| 103.225.171.0/24 | 256 | APNIC | ID | 10th Feb 2014 |
| 103.225.172.0/23 | 512 | APNIC | ID | 10th Feb 2014 |