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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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.
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Countries with unannounced space registered through APNIC, largest first.
Unannounced blocks in Hong Kong SAR China
792 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.10.197.0/24 | 256 | APNIC |  HK | 29th Jul 2011 |
| 103.10.198.0/24 | 256 | APNIC | HK | 29th Jul 2011 |
| 103.10.199.0/24 | 256 | APNIC | HK | 29th Jul 2011 |
| 103.100.138.0/23 | 512 | APNIC | HK | 8th Sept 2017 |
| 103.103.68.0/22 | 1k | APNIC | HK | 1st Nov 2017 |
| 103.106.208.0/22 | 1k | APNIC | HK | 3rd Jan 2018 |
| 103.107.10.0/23 | 512 | APNIC | HK | 5th Jan 2018 |
| 103.107.12.0/22 | 1k | APNIC | HK | 5th Jan 2018 |
| 103.108.216.0/23 | 512 | APNIC | HK | 6th Feb 2018 |
| 103.11.92.0/22 | 1k | APNIC | HK | 19th Oct 2011 |
| 103.112.28.0/22 | 1k | APNIC | HK | 22nd Mar 2018 |
| 103.114.132.0/22 | 1k | APNIC | HK | 27th Apr 2018 |
| 103.118.36.0/22 | 1k | APNIC | HK | 6th Jul 2018 |
| 103.120.109.0/24 | 256 | APNIC | HK | 3rd Aug 2018 |
| 103.120.24.0/22 | 1k | APNIC | HK | 30th Jul 2018 |
| 103.122.20.0/22 | 1k | APNIC | HK | 10th Sept 2018 |
| 103.125.115.0/24 | 256 | APNIC | HK | 22nd Nov 2018 |
| 103.127.80.0/22 | 1k | APNIC | HK | 14th Dec 2018 |
| 103.13.191.0/24 | 256 | APNIC | HK | 26th Jul 2012 |
| 103.131.34.0/24 | 256 | APNIC | HK | 16th Oct 2018 |
| 103.139.90.0/24 | 256 | APNIC | HK | 19th May 2019 |
| 103.141.185.0/24 | 256 | APNIC | HK | 31st Jul 2019 |
| 103.142.46.0/23 | 512 | APNIC | HK | 16th Aug 2019 |
| 103.142.84.0/23 | 512 | APNIC | HK | 21st Aug 2019 |
| 103.143.158.0/23 | 512 | APNIC | HK | 27th Sept 2019 |
| 103.147.20.0/23 | 512 | APNIC | HK | 23rd Dec 2019 |
| 103.147.45.0/24 | 256 | APNIC | HK | 31st Dec 2019 |
| 103.148.226.0/23 | 512 | APNIC | HK | 25th Feb 2020 |
| 103.149.82.0/24 | 256 | APNIC | HK | 10th Mar 2020 |
| 103.150.199.0/24 | 256 | APNIC | HK | 23rd Apr 2020 |
| 103.150.28.0/24 | 256 | APNIC | HK | 3rd Apr 2020 |
| 103.151.160.0/23 | 512 | APNIC | HK | 22nd May 2020 |
| 103.151.200.0/24 | 256 | APNIC | HK | 31st May 2020 |
| 103.151.206.0/23 | 512 | APNIC | HK | 1st Jun 2020 |
| 103.152.190.0/23 | 512 | APNIC | HK | 30th Jun 2020 |
| 103.152.210.0/23 | 512 | APNIC | HK | 1st Jul 2020 |
| 103.152.82.0/23 | 512 | APNIC | HK | 19th Jun 2020 |
| 103.153.16.0/23 | 512 | APNIC | HK | 8th Jul 2020 |
| 103.154.104.0/24 | 256 | APNIC | HK | 11th Aug 2020 |
| 103.154.182.0/23 | 512 | APNIC | HK | 14th Aug 2020 |
| 103.155.244.0/23 | 512 | APNIC | HK | 18th Sept 2020 |
| 103.158.29.0/24 | 256 | APNIC | HK | 4th Nov 2020 |
| 103.16.26.0/23 | 512 | APNIC | HK | 31st Jan 2013 |
| 103.162.6.0/24 | 256 | APNIC | HK | 22nd Jan 2021 |
| 103.162.7.0/24 | 256 | APNIC | HK | 22nd Jan 2021 |
| 103.163.252.0/23 | 512 | APNIC | HK | 8th Mar 2021 |
| 103.17.196.0/22 | 1k | APNIC | HK | 5th Mar 2013 |
| 103.17.92.0/22 | 1k | APNIC | HK | 27th Feb 2013 |
| 103.181.12.0/23 | 512 | APNIC | HK | 2nd Feb 2022 |
| 103.193.32.0/22 | 1k | APNIC | HK | 27th Jul 2015 |