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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 China
6,720 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.97.40.0/22 | 1k | APNIC |  CN | 14th Jul 2017 |
| 103.97.56.0/22 | 1k | APNIC | CN | 14th Jul 2017 |
| 103.97.64.0/22 | 1k | APNIC | CN | 14th Jul 2017 |
| 103.97.68.0/22 | 1k | APNIC | CN | 14th Jul 2017 |
| 103.97.72.0/22 | 1k | APNIC | CN | 14th Jul 2017 |
| 103.97.8.0/22 | 1k | APNIC | CN | 12th Jul 2017 |
| 103.98.0.0/23 | 512 | APNIC | CN | 27th Feb 2023 |
| 103.98.100.0/22 | 1k | APNIC | CN | 3rd Aug 2017 |
| 103.98.136.0/22 | 1k | APNIC | CN | 8th Aug 2017 |
| 103.98.140.0/22 | 1k | APNIC | CN | 8th Aug 2017 |
| 103.98.144.0/22 | 1k | APNIC | CN | 8th Aug 2017 |
| 103.98.164.0/22 | 1k | APNIC | CN | 8th Aug 2017 |
| 103.98.168.0/22 | 1k | APNIC | CN | 9th Aug 2017 |
| 103.98.180.0/22 | 1k | APNIC | CN | 10th Aug 2017 |
| 103.98.196.0/22 | 1k | APNIC | CN | 11th Aug 2017 |
| 103.98.216.0/22 | 1k | APNIC | CN | 11th Aug 2017 |
| 103.98.224.0/22 | 1k | APNIC | CN | 11th Aug 2017 |
| 103.98.228.0/22 | 1k | APNIC | CN | 11th Aug 2017 |
| 103.98.232.0/22 | 1k | APNIC | CN | 14th Aug 2017 |
| 103.98.240.0/22 | 1k | APNIC | CN | 17th Aug 2017 |
| 103.98.244.0/22 | 1k | APNIC | CN | 17th Aug 2017 |
| 103.98.40.0/22 | 1k | APNIC | CN | 1st Aug 2017 |
| 103.98.48.0/22 | 1k | APNIC | CN | 1st Aug 2017 |
| 103.98.56.0/22 | 1k | APNIC | CN | 1st Aug 2017 |
| 103.98.80.0/22 | 1k | APNIC | CN | 3rd Aug 2017 |
| 103.98.88.0/22 | 1k | APNIC | CN | 3rd Aug 2017 |
| 103.99.116.0/22 | 1k | APNIC | CN | 24th Aug 2017 |
| 103.99.120.0/22 | 1k | APNIC | CN | 24th Aug 2017 |
| 103.99.152.0/22 | 1k | APNIC | CN | 25th Aug 2017 |
| 103.99.220.0/22 | 1k | APNIC | CN | 30th Aug 2017 |
| 103.99.232.0/22 | 1k | APNIC | CN | 31st Aug 2017 |
| 103.99.236.0/22 | 1k | APNIC | CN | 31st Aug 2017 |
| 103.99.56.0/22 | 1k | APNIC | CN | 21st Aug 2017 |
| 106.0.0.0/24 | 256 | APNIC | CN | 14th Apr 2011 |
| 106.0.16.0/20 | 4.1k | APNIC | CN | 12th Apr 2011 |
| 106.0.2.0/23 | 512 | APNIC | CN | 14th Apr 2011 |
| 106.0.44.0/22 | 1k | APNIC | CN | 14th Jan 2016 |
| 106.0.64.0/18 | 16.4k | APNIC | CN | 12th Apr 2011 |
| 106.0.8.0/21 | 2k | APNIC | CN | 12th Apr 2011 |
| 106.50.0.0/16 | 65.5k | APNIC | CN | 31st Mar 2011 |
| 110.165.32.0/19 | 8.2k | APNIC | CN | 15th Jun 2010 |
| 110.173.64.0/19 | 8.2k | APNIC | CN | 12th Apr 2011 |
| 110.173.96.0/19 | 8.2k | APNIC | CN | 5th May 2009 |
| 110.232.32.0/19 | 8.2k | APNIC | CN | 14th May 2009 |
| 110.34.40.0/22 | 1k | APNIC | CN | 19th Nov 2015 |
| 110.34.44.0/22 | 1k | APNIC | CN | 19th Nov 2015 |
| 110.44.12.0/22 | 1k | APNIC | CN | 16th Dec 2015 |
| 110.44.144.0/20 | 4.1k | APNIC | CN | 11th Mar 2011 |
| 110.48.0.0/16 | 65.5k | APNIC | CN | 16th Mar 2009 |
| 110.76.132.0/22 | 1k | APNIC | CN | 19th Nov 2015 |