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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through APNIC, largest first.
Unannounced blocks in China
6,720 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2001:df3:a680::/48 | 65.5k × /64 | APNIC | 7th May 2020 | |
| 2001:df3:c680::/48 | 65.5k × /64 | APNIC | 21st May 2020 | |
| 2001:df3:d0c0::/48 | 65.5k × /64 | APNIC | 16th May 2024 | |
| 2001:df3:ef80::/48 | 65.5k × /64 | APNIC | 10th Jun 2020 | |
| 2001:df4:1880::/48 | 65.5k × /64 | APNIC | 28th Jun 2020 | |
| 2001:df4:2780::/48 | 65.5k × /64 | APNIC | 6th Jul 2020 | |
| 2001:df4:2e80::/48 | 65.5k × /64 | APNIC | 10th Jul 2020 | |
| 2001:df4:3d80::/48 | 65.5k × /64 | APNIC | 15th Jul 2020 | |
| 2001:df4:4b80::/48 | 65.5k × /64 | APNIC | 21st Jul 2020 | |
| 2001:df4:4d80::/48 | 65.5k × /64 | APNIC | 23rd Jul 2020 | |
| 2001:df4:c180::/48 | 65.5k × /64 | APNIC | 4th Sept 2020 | |
| 2001:df4:c580::/48 | 65.5k × /64 | APNIC | 6th Sept 2020 | |
| 2001:df4:e140::/48 | 65.5k × /64 | APNIC | 9th Jan 2025 | |
| 2001:df4:e142::/47 | 131k × /64 | APNIC | 22nd May 2025 | |
| 2001:df5:2fc0::/48 | 65.5k × /64 | APNIC | 6th Mar 2025 | |
| 2001:df5:4740::/48 | 65.5k × /64 | APNIC | 21st Mar 2025 | |
| 2001:df5:4cc0::/48 | 65.5k × /64 | APNIC | 31st Mar 2025 | |
| 2001:df5:5f80::/48 | 65.5k × /64 | APNIC | 17th Nov 2020 | |
| 2001:df5:7800::/48 | 65.5k × /64 | APNIC | 30th Apr 2014 | |
| 2001:df6:100::/48 | 65.5k × /64 | APNIC | 31st Jul 2018 | |
| 2001:df6:5d00::/48 | 65.5k × /64 | APNIC | 31st Aug 2018 | |
| 2001:df6:6800::/48 | 65.5k × /64 | APNIC | 5th Jun 2014 | |
| 2001:df6:f400::/48 | 65.5k × /64 | APNIC | 26th Oct 2015 | |
| 2001:df7:2b80::/48 | 65.5k × /64 | APNIC | 2nd Aug 2021 | |
| 2001:df7:6600::/48 | 65.5k × /64 | APNIC | 16th Dec 2016 | |
| 2001:e08::/32 | 4.3B × /64 | APNIC | 21st Nov 2003 | |
| 2001:e18::/32 | 4.3B × /64 | APNIC | 19th Dec 2003 | |
| 2001:e80::/32 | 4.3B × /64 | APNIC | 19th Mar 2004 | |
| 2001:e88::/32 | 4.3B × /64 | APNIC | 23rd Mar 2004 | |
| 2001:f38::/32 | 4.3B × /64 | APNIC | 21st Jul 2004 | |
| 2001:f88::/32 | 4.3B × /64 | APNIC | 11th Oct 2004 | |
| 202.0.100.0/23 | 512 | APNIC | 14th Apr 2011 | |
| 202.0.122.0/23 | 512 | APNIC | 14th Apr 2011 | |
| 202.10.112.0/22 | 1k | APNIC | 21st Nov 2015 | |
| 202.10.116.0/22 | 1k | APNIC | 21st Nov 2015 | |
| 202.10.120.0/22 | 1k | APNIC | 21st Nov 2015 | |
| 202.10.124.0/22 | 1k | APNIC | 21st Nov 2015 | |
| 202.12.1.0/24 | 256 | APNIC | 14th Apr 2011 | |
| 202.12.106.0/24 | 256 | APNIC | 14th Apr 2011 | |
| 202.12.111.0/24 | 256 | APNIC | 14th Apr 2011 | |
| 202.12.116.0/24 | 256 | APNIC | 14th Apr 2011 | |
| 202.12.17.0/24 | 256 | APNIC | 14th Apr 2011 | |
| 202.12.18.0/24 | 256 | APNIC | 14th Apr 2011 | |
| 202.12.2.0/24 | 256 | APNIC | 14th Apr 2011 | |
| 202.12.72.0/24 | 256 | APNIC | 14th Apr 2011 | |
| 202.12.84.0/23 | 512 | APNIC | 14th Apr 2011 | |
| 202.12.96.0/24 | 256 | APNIC | 14th Apr 2011 | |
| 202.12.98.0/23 | 512 | APNIC | 14th Apr 2011 | |
| 202.122.0.0/21 | 2k | APNIC | 5th Nov 1994 | |
| 202.122.120.0/21 | 2k | APNIC | 12th Apr 2011 |