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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 103.225.184.0/23 | 512 | APNIC |  ID | 10th Feb 2014 |
| 103.227.14.0/24 | 256 | APNIC | ID | 6th Mar 2014 |
| 103.227.250.0/23 | 512 | APNIC | ID | 22nd Jun 2023 |
| 103.228.248.0/24 | 256 | APNIC | ID | 2nd Apr 2014 |
| 103.228.80.0/23 | 512 | APNIC | ID | 24th Mar 2014 |
| 103.229.12.0/23 | 512 | APNIC | ID | 4th Apr 2014 |
| 103.229.76.0/23 | 512 | APNIC | ID | 8th Apr 2014 |
| 103.23.151.0/24 | 256 | APNIC | ID | 2nd Dec 2011 |
| 103.23.180.0/22 | 1k | APNIC | ID | 2nd Dec 2011 |
| 103.23.96.0/23 | 512 | APNIC | ID | 21st Oct 2022 |
| 103.230.83.0/24 | 256 | APNIC | ID | 2nd May 2014 |
| 103.231.108.0/22 | 1k | APNIC | ID | 12th May 2014 |
| 103.231.122.0/24 | 256 | APNIC | ID | 13th May 2014 |
| 103.231.170.0/24 | 256 | APNIC | ID | 16th May 2014 |
| 103.231.198.0/23 | 512 | APNIC | ID | 16th May 2014 |
| 103.232.30.0/24 | 256 | APNIC | ID | 23rd May 2014 |
| 103.233.90.0/23 | 512 | APNIC | ID | 7th Jun 2014 |
| 103.235.21.0/24 | 256 | APNIC | ID | 1st Jul 2014 |
| 103.24.198.0/23 | 512 | APNIC | ID | 25th Oct 2022 |
| 103.24.224.0/23 | 512 | APNIC | ID | 25th Oct 2022 |
| 103.24.76.0/24 | 256 | APNIC | ID | 11th Apr 2013 |
| 103.240.70.0/23 | 512 | APNIC | ID | 22nd Jul 2023 |
| 103.242.208.0/23 | 512 | APNIC | ID | 25th Sept 2013 |
| 103.243.108.0/23 | 512 | APNIC | ID | 10th Oct 2013 |
| 103.244.160.0/23 | 512 | APNIC | ID | 18th Dec 2012 |
| 103.244.51.0/24 | 256 | APNIC | ID | 18th Dec 2012 |
| 103.245.168.0/23 | 512 | APNIC | ID | 1st Aug 2023 |
| 103.245.177.0/24 | 256 | APNIC | ID | 22nd Jan 2013 |
| 103.245.57.0/24 | 256 | APNIC | ID | 31st Jul 2023 |
| 103.246.129.0/24 | 256 | APNIC | ID | 23rd Aug 2011 |
| 103.246.76.0/24 | 256 | APNIC | ID | 1st Jun 2011 |
| 103.247.100.0/22 | 1k | APNIC | ID | 25th Jan 2012 |
| 103.247.126.0/23 | 512 | APNIC | ID | 31st Jan 2012 |
| 103.247.16.0/23 | 512 | APNIC | ID | 13th Jan 2012 |
| 103.247.18.0/24 | 256 | APNIC | ID | 17th Jan 2012 |
| 103.247.34.0/23 | 512 | APNIC | ID | 17th Jan 2012 |
| 103.247.40.0/22 | 1k | APNIC | ID | 18th Jan 2012 |
| 103.249.210.0/24 | 256 | APNIC | ID | 11th Jun 2013 |
| 103.249.58.0/23 | 512 | APNIC | ID | 31st May 2013 |
| 103.25.165.0/24 | 256 | APNIC | ID | 7th May 2013 |
| 103.25.184.0/23 | 512 | APNIC | ID | 25th Oct 2022 |
| 103.25.186.0/23 | 512 | APNIC | ID | 25th Oct 2022 |
| 103.250.208.0/23 | 512 | APNIC | ID | 9th Aug 2023 |
| 103.250.210.0/23 | 512 | APNIC | ID | 9th Aug 2023 |
| 103.251.14.0/24 | 256 | APNIC | ID | 25th Jul 2013 |
| 103.251.40.0/23 | 512 | APNIC | ID | 26th Jul 2013 |
| 103.252.85.0/24 | 256 | APNIC | ID | 25th Oct 2013 |
| 103.253.112.0/22 | 1k | APNIC | ID | 15th Nov 2013 |
| 103.253.231.0/24 | 256 | APNIC | ID | 15th Aug 2023 |
| 103.254.197.0/24 | 256 | APNIC | ID | 12th May 2023 |