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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
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Countries with unannounced space registered through APNIC, largest first.
Unannounced blocks in Indonesia
2,880 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 203.18.86.0/24 | 256 | APNIC |  ID | 11th Nov 2026 |
| 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 |
| 203.207.52.0/22 | 1k | APNIC | ID | 2nd Feb 2009 |
| 203.209.188.0/23 | 512 | APNIC | ID | 9th Feb 2009 |
| 203.21.139.0/24 | 256 | APNIC | ID | 12th Nov 2026 |
| 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 |
| 203.23.54.0/24 | 256 | APNIC | ID | 2nd Oct 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 |
| 203.33.98.0/24 | 256 | APNIC | ID | 7th Oct 2026 |
| 203.62.240.0/23 | 512 | APNIC | ID | 9th Nov 2026 |
| 203.78.4.0/24 | 256 | APNIC | ID | 2nd Oct 2026 |
| 203.79.26.0/23 | 512 | APNIC | ID | 10th Aug 2009 |
| 203.8.174.0/24 | 256 | APNIC | ID | 5th Nov 2026 |
| 203.83.30.0/23 | 512 | APNIC | ID | 18th Jan 2006 |
| 203.89.146.0/23 | 512 | APNIC | ID | 17th 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 |
| 218.100.11.0/24 | 256 | APNIC | ID | 20th Nov 2003 |
| 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 |
| 2400:19e0::/32 | 4.3B × /64 | APNIC | ID | 1st Nov 2021 |