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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 Hong Kong SAR China
766 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 154.8.126.0/23 | 512 | APNIC |  HK | 5th Feb 1992 |
| 154.8.64.0/19 | 8.2k | APNIC | HK | 5th Feb 1992 |
| 159.117.40.0/21 | 2k | APNIC | HK | 9th Apr 1992 |
| 159.117.96.0/21 | 2k | APNIC | HK | 9th Apr 1992 |
| 160.19.48.0/22 | 1k | APNIC | HK | 5th Sept 2016 |
| 160.22.48.0/23 | 512 | APNIC | HK | 4th Jun 2024 |
| 160.236.100.0/23 | 512 | APNIC | HK | 13th Jul 2026 |
| 160.236.214.0/23 | 512 | APNIC | HK | 3rd Aug 2026 |
| 160.236.243.0/24 | 256 | APNIC | HK | 7th Aug 2026 |
| 160.30.76.0/23 | 512 | APNIC | HK | 8th Aug 2024 |
| 162.4.204.0/23 | 512 | APNIC | HK | 2nd Jun 2026 |
| 163.223.72.0/23 | 512 | APNIC | HK | 11th Mar 2025 |
| 163.61.161.0/26 | 64 | APNIC | HK | 8th Sept 2025 |
| 174.138.144.0/20 | 4.1k | APNIC | HK | 31st Dec 2009 |
| 175.176.152.0/22 | 1k | APNIC | HK | 19th Nov 2015 |
| 180.235.136.0/22 | 1k | APNIC | HK | 3rd Nov 2015 |
| 182.161.32.0/22 | 1k | APNIC | HK | 14th Nov 2017 |
| 187.53.192.0/20 | 4.1k | APNIC | HK | 13th Mar 2025 |
| 187.55.112.0/20 | 4.1k | APNIC | HK | 13th Mar 2025 |
| 189.10.48.0/20 | 4.1k | APNIC | HK | 13th Mar 2025 |
| 189.75.0.0/20 | 4.1k | APNIC | HK | 13th Mar 2025 |
| 189.75.144.0/20 | 4.1k | APNIC | HK | 13th Mar 2025 |
| 192.135.99.0/24 | 256 | APNIC | HK | 4th Mar 2019 |
| 192.188.82.0/23 | 512 | APNIC | HK | 5th Jan 2018 |
| 192.203.183.0/24 | 256 | APNIC | HK | 7th Feb 2011 |
| 192.203.184.0/23 | 512 | APNIC | HK | 7th Feb 2011 |
| 192.75.137.0/24 | 256 | APNIC | HK | 4th Mar 2019 |
| 195.10.240.0/22 | 1k | APNIC | HK | 14th Nov 1997 |
| 198.15.31.0/24 | 256 | APNIC | HK | 10th Feb 2026 |
| 199.43.19.0/24 | 256 | APNIC | HK | 18th Mar 1994 |
| 199.43.45.0/24 | 256 | APNIC | HK | 18th Mar 1994 |
| 199.43.63.0/24 | 256 | APNIC | HK | 18th Mar 1994 |
| 199.9.24.0/21 | 2k | APNIC | HK | 15th Oct 2008 |
| 200.225.144.0/20 | 4.1k | APNIC | HK | 13th Mar 2025 |
| 2001:7fa:0:1::/64 | 1 × /64 | APNIC | HK | 16th Jan 2002 |
| 2001:ce1::/32 | 4.3B × /64 | APNIC | HK | 14th Dec 2017 |
| 2001:de6::/32 | 4.3B × /64 | APNIC | HK | 9th Apr 2024 |
| 2001:dee::/48 | 65.5k × /64 | APNIC | HK | 26th Jun 2013 |
| 2001:def::/48 | 65.5k × /64 | APNIC | HK | 16th Jan 2015 |
| 2001:df0:20a::/48 | 65.5k × /64 | APNIC | HK | 31st Mar 2011 |
| 2001:df0:212::/48 | 65.5k × /64 | APNIC | HK | 10th Apr 2011 |
| 2001:df0:25b::/48 | 65.5k × /64 | APNIC | HK | 1st Nov 2011 |
| 2001:df0:280::/44 | 1M × /64 | APNIC | HK | 30th Dec 2011 |
| 2001:df0:296::/48 | 65.5k × /64 | APNIC | HK | 2nd Feb 2012 |
| 2001:df0:2af::/48 | 65.5k × /64 | APNIC | HK | 26th Apr 2012 |
| 2001:df0:412::/48 | 65.5k × /64 | APNIC | HK | 21st Sept 2012 |
| 2001:df0:442::/47 | 131k × /64 | APNIC | HK | 5th Dec 2012 |
| 2001:df0:44::/48 | 65.5k × /64 | APNIC | HK | 27th Oct 2008 |
| 2001:df0:452::/48 | 65.5k × /64 | APNIC | HK | 3rd Jan 2013 |
| 2001:df0:465::/48 | 65.5k × /64 | APNIC | HK | 31st Jan 2013 |