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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 registered through APNIC
22,593 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.231.220.0/23 | 512 | APNIC | 20th May 2014 | |
| 103.231.24.0/23 | 512 | APNIC | 7th Sept 2022 | |
| 103.231.244.0/22 | 1k | APNIC | 21st May 2014 | |
| 103.231.250.0/24 | 256 | APNIC | 22nd May 2014 | |
| 103.231.27.0/24 | 256 | APNIC | 9th May 2014 | |
| 103.232.0.0/22 | 1k | APNIC | 21st May 2014 | |
| 103.232.132.0/22 | 1k | APNIC | 29th May 2014 | |
| 103.232.170.0/23 | 512 | APNIC | 30th May 2014 | |
| 103.232.176.0/22 | 1k | APNIC | 30th May 2014 | |
| 103.232.188.0/22 | 1k | APNIC | 11th Aug 2016 | |
| 103.232.30.0/24 | 256 | APNIC | 23rd May 2014 | |
| 103.232.36.0/22 | 1k | APNIC | 26th May 2014 | |
| 103.232.4.0/22 | 1k | APNIC | 21st May 2014 | |
| 103.232.68.0/22 | 1k | APNIC | 27th May 2014 | |
| 103.232.96.0/22 | 1k | APNIC | 27th May 2014 | |
| 103.233.104.0/22 | 1k | APNIC | 9th Jun 2014 | |
| 103.233.120.0/24 | 256 | APNIC | 10th Jun 2014 | |
| 103.233.16.0/22 | 1k | APNIC | 4th Jun 2014 | |
| 103.233.180.0/23 | 512 | APNIC | 12th Jun 2014 | |
| 103.233.212.0/22 | 1k | APNIC | 13th Sept 2016 | |
| 103.233.228.0/22 | 1k | APNIC | 13th Jun 2014 | |
| 103.233.242.0/24 | 256 | APNIC | 16th Jun 2014 | |
| 103.233.28.0/23 | 512 | APNIC | 4th Jun 2014 | |
| 103.233.44.0/22 | 1k | APNIC | 5th Jun 2014 | |
| 103.233.90.0/23 | 512 | APNIC | 7th Jun 2014 | |
| 103.234.0.0/22 | 1k | APNIC | 16th Jun 2014 | |
| 103.234.100.0/22 | 1k | APNIC | 20th Jun 2014 | |
| 103.234.14.0/23 | 512 | APNIC | 18th Jun 2014 | |
| 103.234.163.0/24 | 256 | APNIC | 25th Jun 2014 | |
| 103.234.172.0/22 | 1k | APNIC | 24th Jun 2014 | |
| 103.234.180.0/22 | 1k | APNIC | 24th Jun 2014 | |
| 103.234.190.0/24 | 256 | APNIC | 6th Jul 2023 | |
| 103.234.220.0/22 | 1k | APNIC | 25th Jun 2014 | |
| 103.234.244.0/22 | 1k | APNIC | 27th Jun 2014 | |
| 103.234.248.0/22 | 1k | APNIC | 30th Jun 2014 | |
| 103.234.64.0/22 | 1k | APNIC | 18th Jun 2014 | |
| 103.234.72.0/22 | 1k | APNIC | 11th Aug 2016 | |
| 103.235.132.0/22 | 1k | APNIC | 4th Jul 2014 | |
| 103.235.140.0/22 | 1k | APNIC | 4th Jul 2014 | |
| 103.235.148.0/22 | 1k | APNIC | 4th Jul 2014 | |
| 103.235.154.0/24 | 256 | APNIC | 9th Jul 2014 | |
| 103.235.156.0/22 | 1k | APNIC | 4th Jul 2014 | |
| 103.235.180.0/24 | 256 | APNIC | 7th Jul 2023 | |
| 103.235.184.0/22 | 1k | APNIC | 8th Jul 2014 | |
| 103.235.192.0/22 | 1k | APNIC | 8th Jul 2014 | |
| 103.235.200.0/22 | 1k | APNIC | 9th Jul 2014 | |
| 103.235.21.0/24 | 256 | APNIC | 1st Jul 2014 | |
| 103.235.216.0/22 | 1k | APNIC | 14th Sept 2016 | |
| 103.235.24.0/22 | 1k | APNIC | 1st Jul 2014 | |
| 103.235.36.0/22 | 1k | APNIC | 2nd Jul 2014 |