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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
Browse by country
Countries with the most unannounced blocks, largest first.
Unannounced blocks in Hong Kong SAR China
921 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 45.82.116.0/22 | 1k | RIPE NCC |  HK | 23rd May 2019 |
| 45.93.20.0/24 | 256 | RIPE NCC | HK | 25th Jan 2022 |
| 46.175.132.0/24 | 256 | RIPE NCC | HK | 5th Aug 2021 |
| 5.42.216.0/24 | 256 | RIPE NCC | HK | 7th Apr 2022 |
| 58.96.160.0/19 | 8.2k | APNIC | HK | 16th Dec 2010 |
| 59.153.196.0/22 | 1k | APNIC | HK | 21st Oct 2015 |
| 59.153.56.0/22 | 1k | APNIC | HK | 15th Oct 2015 |
| 61.15.128.0/17 | 32.8k | APNIC | HK | 7th Sept 2001 |
| 61.47.88.0/21 | 2k | APNIC | HK | 1st Mar 2005 |
| 62.204.41.0/24 | 256 | RIPE NCC | HK | 8th Oct 2021 |
| 72.4.80.0/21 | 2k | RIPE NCC | HK | 1st Nov 2004 |
| 79.170.199.0/24 | 256 | RIPE NCC | HK | 2nd Oct 2007 |
| 87.199.120.0/22 | 1k | APNIC | HK | 28th Jun 2006 |
| 91.190.152.0/24 | 256 | RIPE NCC | HK | 20th Aug 2021 |
| 91.213.155.0/24 | 256 | RIPE NCC | HK | 9th Aug 2021 |
| 91.217.162.0/24 | 256 | RIPE NCC | HK | 8th Nov 2019 |
| 91.238.114.0/24 | 256 | RIPE NCC | HK | 11th Nov 2019 |
| 91.238.213.0/24 | 256 | RIPE NCC | HK | 11th Nov 2019 |
| 91.240.71.0/24 | 256 | RIPE NCC | HK | 12th Nov 2019 |
| 92.255.57.0/24 | 256 | RIPE NCC | HK | 24th Dec 2007 |
| 92.255.85.0/24 | 256 | RIPE NCC | HK | 24th Dec 2007 |