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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 registered through APNIC
22,624 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 202.9.51.0/24 | 256 | APNIC |  CN | 14th Apr 2011 |
| 202.9.52.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.9.54.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.9.57.0/24 | 256 | APNIC | CN | 20th Feb 2012 |
| 202.9.58.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 202.9.68.0/24 | 256 | APNIC |  AU | 16th Aug 2018 |
| 202.9.70.0/23 | 512 | APNIC |  SG | 29th Apr 2010 |
| 202.9.82.0/24 | 256 | APNIC |  HK | 18th May 2010 |
| 202.9.86.0/24 | 256 | APNIC | SG | 24th May 2010 |
| 202.9.92.0/23 | 512 | APNIC |  IN | 31st May 2010 |
| 202.90.112.0/20 | 4.1k | APNIC | CN | 12th Apr 2011 |
| 202.90.16.0/22 | 1k | APNIC | CN | 23rd Nov 2015 |
| 202.90.160.0/20 | 4.1k | APNIC | AU | 29th Aug 2002 |
| 202.90.176.0/20 | 4.1k | APNIC |  JP | 17th Nov 2003 |
| 202.90.193.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.90.196.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 202.90.197.0/24 | 256 | APNIC | AU | 18th Jul 2008 |
| 202.90.205.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.90.206.0/23 | 512 | APNIC | AU | 29th Jul 2008 |
| 202.90.224.0/21 | 2k | APNIC | CN | 28th Oct 2004 |
| 202.90.232.0/21 | 2k | APNIC | CN | 28th Oct 2004 |
| 202.90.24.0/22 | 1k | APNIC | CN | 23rd Nov 2015 |
| 202.90.28.0/22 | 1k | APNIC | CN | 23rd Nov 2015 |
| 202.90.32.0/24 | 256 | APNIC | AU | 15th Sept 2010 |
| 202.90.36.0/24 | 256 | APNIC |  BN | 11th Jul 2008 |
| 202.90.37.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.90.42.0/23 | 512 | APNIC | IN | 9th Feb 2011 |
| 202.90.44.0/23 | 512 | APNIC |  NZ | 12th Apr 2011 |
| 202.91.0.0/22 | 1k | APNIC | CN | 14th Apr 2011 |
| 202.91.112.0/20 | 4.1k | APNIC | JP | 18th Nov 2004 |
| 202.91.4.0/22 | 1k | APNIC | AU | 7th Jun 2006 |
| 202.91.96.0/20 | 4.1k | APNIC | CN | 12th Apr 2011 |
| 202.92.213.0/24 | 256 | APNIC |  VN | 13th Dec 2004 |
| 202.92.240.0/21 | 2k | APNIC | AU | 1st Apr 2005 |
| 202.92.252.0/22 | 1k | APNIC | CN | 14th Apr 2011 |
| 202.92.32.0/20 | 4.1k | APNIC | AU | 14th May 2001 |
| 202.92.48.0/20 | 4.1k | APNIC | CN | 12th Apr 2011 |
| 202.92.8.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 202.93.154.0/24 | 256 | APNIC | IN | 14th Sept 2007 |
| 202.94.69.0/24 | 256 | APNIC | AU | 6th Dec 2010 |
| 202.94.74.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.94.75.0/24 | 256 | APNIC | HK | 15th Dec 2010 |
| 202.94.78.0/23 | 512 | APNIC | AU | 15th Dec 2010 |
| 202.94.81.0/24 | 256 | APNIC | CN | 9th Jun 2016 |
| 202.94.88.0/23 | 512 | APNIC | VN | 29th Dec 2010 |
| 202.94.92.0/22 | 1k | APNIC | CN | 14th Apr 2011 |
| 202.95.240.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 203.0.10.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 203.0.101.0/24 | 256 | APNIC | AU | 12th Nov 1993 |
| 203.0.103.0/24 | 256 | APNIC | AU | 17th Nov 1993 |