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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.
Unannounced blocks in Hong Kong SAR China
931 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2400:cec0::/32 | 4.3B × /64 | APNIC |  HK | 2nd Mar 2017 |
| 2400:cf20::/32 | 4.3B × /64 | APNIC | HK | 28th Dec 2022 |
| 2400:d700::/32 | 4.3B × /64 | APNIC | HK | 20th May 2011 |
| 2400:db00::/32 | 4.3B × /64 | APNIC | HK | 22nd May 2011 |
| 2400:dd60::/32 | 4.3B × /64 | APNIC | HK | 10th Feb 2023 |
| 2400:dec0::/32 | 4.3B × /64 | APNIC | HK | 17th Mar 2017 |
| 2400:e040::/32 | 4.3B × /64 | APNIC | HK | 21st Mar 2017 |
| 2400:e7c0::/32 | 4.3B × /64 | APNIC | HK | 28th Mar 2017 |
| 2400:e840::/32 | 4.3B × /64 | APNIC | HK | 28th Mar 2017 |
| 2400:ee40::/32 | 4.3B × /64 | APNIC | HK | 31st Mar 2017 |
| 2400:ef00::/32 | 4.3B × /64 | APNIC | HK | 27th May 2011 |
| 2400:f100::/32 | 4.3B × /64 | APNIC | HK | 1st Jun 2011 |
| 2400:f800::/32 | 4.3B × /64 | APNIC | HK | 10th Mar 2009 |
| 2401:1020::/32 | 4.3B × /64 | APNIC | HK | 25th Jun 2023 |
| 2401:1100::/32 | 4.3B × /64 | APNIC | HK | 8th Jun 2011 |
| 2401:1280::/32 | 4.3B × /64 | APNIC | HK | 8th Jun 2014 |
| 2401:280::/32 | 4.3B × /64 | APNIC | HK | 24th May 2014 |
| 2401:2d40::/32 | 4.3B × /64 | APNIC | HK | 24th May 2017 |
| 2401:3040::/32 | 4.3B × /64 | APNIC | HK | 26th May 2017 |
| 2401:3260::/32 | 4.3B × /64 | APNIC | HK | 6th Sept 2023 |
| 2401:360::/32 | 4.3B × /64 | APNIC | HK | 26th May 2023 |
| 2401:3680::/32 | 4.3B × /64 | APNIC | HK | 16th Jul 2014 |
| 2401:36c0::/32 | 4.3B × /64 | APNIC | HK | 2nd Jun 2017 |
| 2401:37c0::/32 | 4.3B × /64 | APNIC | HK | 6th Jun 2017 |
| 2401:39c0::/32 | 4.3B × /64 | APNIC | HK | 6th Jun 2017 |
| 2401:3ca0::/32 | 4.3B × /64 | APNIC | HK | 25th Sept 2023 |
| 2401:3e40::/32 | 4.3B × /64 | APNIC | HK | 6th Jun 2017 |
| 2401:4060::/32 | 4.3B × /64 | APNIC | HK | 29th Sept 2023 |
| 2401:41c0::/32 | 4.3B × /64 | APNIC | HK | 6th Jun 2017 |
| 2401:4840::/32 | 4.3B × /64 | APNIC | HK | 7th Jun 2017 |
| 2401:4bc0::/32 | 4.3B × /64 | APNIC | HK | 8th Jun 2017 |
| 2401:4c40::/32 | 4.3B × /64 | APNIC | HK | 8th Jun 2017 |
| 2401:4e80::/32 | 4.3B × /64 | APNIC | HK | 23rd Jul 2014 |
| 2401:5480::/32 | 4.3B × /64 | APNIC | HK | 4th Aug 2014 |
| 2401:5900::/32 | 4.3B × /64 | APNIC | HK | 30th Jun 2011 |
| 2401:7ac0::/32 | 4.3B × /64 | APNIC | HK | 5th Jul 2017 |
| 2401:7b20::/32 | 4.3B × /64 | APNIC | HK | 29th Jan 2024 |
| 2401:7d20::/32 | 4.3B × /64 | APNIC | HK | 2nd Feb 2024 |
| 2401:87c0::/32 | 4.3B × /64 | APNIC | HK | 19th Jul 2017 |
| 2401:8880::/32 | 4.3B × /64 | APNIC | HK | 4th Sept 2014 |
| 2401:89a0::/32 | 4.3B × /64 | APNIC | HK | 14th Mar 2024 |
| 2401:89c0::/32 | 4.3B × /64 | APNIC | HK | 21st Jul 2017 |
| 2401:8b80::/32 | 4.3B × /64 | APNIC | HK | 5th Sept 2014 |
| 2401:8d40::/32 | 4.3B × /64 | APNIC | HK | 25th Jul 2017 |
| 2401:95a0::/32 | 4.3B × /64 | APNIC | HK | 17th Apr 2024 |
| 2401:9820::/32 | 4.3B × /64 | APNIC | HK | 26th Apr 2024 |
| 2401:9880::/32 | 4.3B × /64 | APNIC | HK | 26th Sept 2014 |
| 2401:99c0::/32 | 4.3B × /64 | APNIC | HK | 7th Aug 2017 |
| 2401:9c80::/32 | 4.3B × /64 | APNIC | HK | 29th Sept 2014 |
| 2401:9d80::/32 | 4.3B × /64 | APNIC | HK | 30th Sept 2014 |