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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through APNIC, largest first.
Unannounced blocks in Indonesia
2,838 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 203.17.21.0/24 | 256 | APNIC |  ID | 15th Mar 2011 |
| 203.171.218.0/23 | 512 | APNIC | ID | 18th Dec 2008 |
| 203.19.4.0/24 | 256 | APNIC | ID | 13th May 2009 |
| 203.190.184.0/21 | 2k | APNIC | ID | 17th May 2006 |
| 203.191.40.0/22 | 1k | APNIC | ID | 9th Sept 2005 |
| 203.191.46.0/24 | 256 | APNIC | ID | 9th Sept 2005 |
| 203.191.47.0/24 | 256 | APNIC | ID | 9th Sept 2005 |
| 203.201.190.0/23 | 512 | APNIC | ID | 12th Aug 2026 |
| 203.207.52.0/22 | 1k | APNIC | ID | 2nd Feb 2009 |
| 203.209.188.0/23 | 512 | APNIC | ID | 9th Feb 2009 |
| 203.21.74.0/23 | 512 | APNIC | ID | 8th Mar 2011 |
| 203.217.134.0/23 | 512 | APNIC | ID | 23rd Jun 2009 |
| 203.223.90.0/23 | 512 | APNIC | ID | 27th Jun 2008 |
| 203.26.78.0/24 | 256 | APNIC | ID | 11th Aug 2026 |
| 203.27.6.0/23 | 512 | APNIC | ID | 11th Mar 2011 |
| 203.3.91.0/24 | 256 | APNIC | ID | 13th Oct 2023 |
| 203.33.35.0/24 | 256 | APNIC | ID | 10th Oct 1996 |
| 203.79.26.0/23 | 512 | APNIC | ID | 10th Aug 2009 |
| 203.83.24.0/23 | 512 | APNIC | ID | 18th Jan 2006 |
| 203.83.30.0/23 | 512 | APNIC | ID | 18th Jan 2006 |
| 203.89.146.0/23 | 512 | APNIC | ID | 17th Apr 2009 |
| 203.89.148.0/23 | 512 | APNIC | ID | 20th Apr 2009 |
| 203.89.16.0/21 | 2k | APNIC | ID | 27th Jan 2006 |
| 210.23.64.0/20 | 4.1k | APNIC | ID | 14th Jun 2002 |
| 210.79.144.0/24 | 256 | APNIC | ID | 29th Nov 2023 |
| 210.87.123.0/24 | 256 | APNIC | ID | 6th Dec 2023 |
| 218.100.11.0/24 | 256 | APNIC | ID | 20th Nov 2003 |
| 218.100.27.0/24 | 256 | APNIC | ID | 6th Sept 2005 |
| 218.100.28.0/24 | 256 | APNIC | ID | 7th Sept 2005 |
| 218.100.29.0/24 | 256 | APNIC | ID | 7th Sept 2005 |
| 218.100.30.0/24 | 256 | APNIC | ID | 7th Sept 2005 |
| 218.100.31.0/24 | 256 | APNIC | ID | 7th Sept 2005 |
| 218.100.32.0/24 | 256 | APNIC | ID | 7th Sept 2005 |
| 218.100.33.0/24 | 256 | APNIC | ID | 7th Sept 2005 |
| 218.100.34.0/24 | 256 | APNIC | ID | 7th Sept 2005 |
| 218.100.35.0/24 | 256 | APNIC | ID | 7th Sept 2005 |
| 218.100.4.0/24 | 256 | APNIC | ID | 8th May 2003 |
| 218.100.41.0/24 | 256 | APNIC | ID | 7th Jun 2006 |
| 218.100.55.0/24 | 256 | APNIC | ID | 20th Mar 2008 |
| 218.100.62.0/23 | 512 | APNIC | ID | 3rd Nov 2008 |
| 218.100.64.0/24 | 256 | APNIC | ID | 3rd Nov 2008 |
| 218.100.72.0/23 | 512 | APNIC | ID | 29th Jul 2010 |
| 218.100.74.0/24 | 256 | APNIC | ID | 31st Aug 2010 |
| 220.157.96.0/20 | 4.1k | APNIC | ID | 11th Sept 2006 |
| 221.132.192.0/18 | 16.4k | APNIC | ID | 16th Feb 2005 |
| 223.164.0.0/16 | 65.5k | APNIC | ID | 16th Jul 2010 |
| 2400:1400::/32 | 4.3B × /64 | APNIC | ID | 9th Jun 2009 |
| 2400:17e0::/32 | 4.3B × /64 | APNIC | ID | 22nd Oct 2021 |
| 2400:1820::/32 | 4.3B × /64 | APNIC | ID | 22nd Oct 2021 |
| 2400:1880::/32 | 4.3B × /64 | APNIC | ID | 30th Sept 2013 |