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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.
Unannounced blocks in Hong Kong SAR China
899 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 202.64.108.0/24 | 256 | APNIC |  HK | 18th Mar 1994 |
| 202.64.26.0/23 | 512 | APNIC | HK | 18th Mar 1994 |
| 202.68.0.0/19 | 8.2k | APNIC | HK | 5th Nov 1994 |
| 202.68.32.0/19 | 8.2k | APNIC | HK | 10th Apr 1996 |
| 202.74.50.0/23 | 512 | APNIC | HK | 22nd Nov 2010 |
| 202.77.0.0/22 | 1k | APNIC | HK | 4th Jul 1995 |
| 202.77.140.0/22 | 1k | APNIC | HK | 8th Oct 2002 |
| 202.77.160.0/19 | 8.2k | APNIC | HK | 8th Oct 2002 |
| 202.8.31.0/24 | 256 | APNIC | HK | 9th Oct 2009 |
| 202.83.4.0/22 | 1k | APNIC | HK | 21st Sept 1995 |
| 202.85.248.0/21 | 2k | APNIC | HK | 21st Sept 1995 |
| 202.88.200.0/22 | 1k | APNIC | HK | 5th Oct 1995 |
| 202.88.204.0/22 | 1k | APNIC | HK | 24th Nov 1995 |
| 202.9.82.0/24 | 256 | APNIC | HK | 18th May 2010 |
| 202.94.75.0/24 | 256 | APNIC | HK | 15th Dec 2010 |
| 203.147.110.0/23 | 512 | APNIC | HK | 24th Jun 2011 |
| 203.170.28.0/22 | 1k | APNIC | HK | 26th Nov 2008 |
| 203.190.120.0/24 | 256 | APNIC | HK | 16th Jan 2007 |
| 203.190.123.0/24 | 256 | APNIC | HK | 16th Jan 2007 |
| 203.190.124.0/22 | 1k | APNIC | HK | 16th Jan 2007 |
| 203.191.3.0/24 | 256 | APNIC | HK | 6th Jul 2006 |
| 203.20.152.0/21 | 2k | APNIC | HK | 12th Oct 1995 |
| 203.208.20.0/24 | 256 | APNIC | HK | 20th Jul 2006 |
| 203.209.128.0/20 | 4.1k | APNIC | HK | 25th May 2001 |
| 203.223.192.0/18 | 16.4k | APNIC | HK | 14th Oct 2004 |
| 203.26.157.0/24 | 256 | APNIC | HK | 2nd May 1996 |
| 203.26.40.0/24 | 256 | APNIC | HK | 10th Apr 1996 |
| 203.32.190.0/23 | 512 | APNIC | HK | 2nd Oct 1996 |
| 203.33.142.0/24 | 256 | APNIC | HK | 16th Oct 1996 |
| 203.33.189.0/24 | 256 | APNIC | HK | 23rd Feb 2018 |
| 203.56.251.0/24 | 256 | APNIC | HK | 29th Jan 1997 |
| 203.56.87.0/24 | 256 | APNIC | HK | 16th Jan 1997 |
| 203.78.132.0/22 | 1k | APNIC | HK | 15th Aug 2016 |
| 203.78.140.0/22 | 1k | APNIC | HK | 15th Aug 2016 |
| 203.8.204.0/24 | 256 | APNIC | HK | 7th Oct 1994 |
| 203.84.0.0/18 | 16.4k | APNIC | HK | 21st Mar 1996 |
| 203.96.164.0/22 | 1k | APNIC | HK | 16th Nov 2018 |
| 203.99.254.0/24 | 256 | APNIC | HK | 17th Nov 2005 |
| 204.110.8.0/21 | 2k | APNIC | HK | 16th Feb 2023 |
| 204.152.224.0/21 | 2k | APNIC | HK | 18th Feb 2009 |
| 204.79.169.0/24 | 256 | ARIN | HK | 14th Dec 1994 |
| 206.220.132.0/22 | 1k | ARIN | HK | 8th Nov 1995 |
| 206.225.128.0/22 | 1k | ARIN | HK | 21st Nov 1995 |
| 210.17.160.0/24 | 256 | APNIC | HK | 24th Jul 2002 |
| 210.17.223.0/24 | 256 | APNIC | HK | 7th Aug 2003 |
| 210.57.128.0/18 | 16.4k | APNIC | HK | 23rd Aug 2001 |
| 216.119.224.0/19 | 8.2k | RIPE NCC | HK | 16th Nov 2000 |
| 216.151.192.0/20 | 4.1k | APNIC | HK | 25th Feb 2010 |
| 217.194.140.0/22 | 1k | APNIC | HK | 19th Apr 2001 |
| 218.100.16.0/23 | 512 | APNIC | HK | 14th Jan 2004 |