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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
22,575 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.53.54.0/24 | 256 | APNIC | 20th Mar 2015 | |
| 103.53.55.0/24 | 256 | APNIC | 23rd Mar 2015 | |
| 103.53.64.0/22 | 1k | APNIC | 20th Mar 2015 | |
| 103.53.68.0/22 | 1k | APNIC | 20th Mar 2015 | |
| 103.53.92.0/22 | 1k | APNIC | 23rd Mar 2015 | |
| 103.54.148.0/22 | 1k | APNIC | 8th Apr 2015 | |
| 103.54.160.0/22 | 1k | APNIC | 8th Apr 2015 | |
| 103.54.164.0/22 | 1k | APNIC | 8th Apr 2015 | |
| 103.54.176.0/23 | 512 | APNIC | 14th Dec 2022 | |
| 103.54.2.0/23 | 512 | APNIC | 31st Mar 2015 | |
| 103.54.208.0/22 | 1k | APNIC | 9th Apr 2015 | |
| 103.54.212.0/22 | 1k | APNIC | 9th Apr 2015 | |
| 103.54.228.0/23 | 512 | APNIC | 15th Dec 2022 | |
| 103.54.232.0/22 | 1k | APNIC | 10th Apr 2015 | |
| 103.54.240.0/22 | 1k | APNIC | 13th Apr 2015 | |
| 103.54.244.0/22 | 1k | APNIC | 13th Apr 2015 | |
| 103.54.252.0/22 | 1k | APNIC | 14th Apr 2015 | |
| 103.54.32.0/22 | 1k | APNIC | 30th Mar 2015 | |
| 103.54.8.0/22 | 1k | APNIC | 30th Mar 2015 | |
| 103.54.82.0/23 | 512 | APNIC | 14th Dec 2022 | |
| 103.55.120.0/22 | 1k | APNIC | 20th Apr 2015 | |
| 103.55.133.0/24 | 256 | APNIC | 21st Apr 2015 | |
| 103.55.140.0/22 | 1k | APNIC | 21st Apr 2015 | |
| 103.55.152.0/22 | 1k | APNIC | 21st Apr 2015 | |
| 103.55.157.0/24 | 256 | APNIC | 21st Apr 2015 | |
| 103.55.161.0/24 | 256 | APNIC | 20th Sept 2022 | |
| 103.55.165.0/24 | 256 | APNIC | 21st Apr 2015 | |
| 103.55.176.0/23 | 512 | APNIC | 22nd Apr 2015 | |
| 103.55.180.0/22 | 1k | APNIC | 22nd Apr 2015 | |
| 103.55.20.0/23 | 512 | APNIC | 16th Dec 2022 | |
| 103.55.204.0/22 | 1k | APNIC | 23rd Apr 2015 | |
| 103.55.208.0/22 | 1k | APNIC | 23rd Apr 2015 | |
| 103.55.218.0/24 | 256 | APNIC | 24th Apr 2015 | |
| 103.55.236.0/22 | 1k | APNIC | 24th Apr 2015 | |
| 103.55.244.0/22 | 1k | APNIC | 24th Apr 2015 | |
| 103.55.32.0/24 | 256 | APNIC | 15th Apr 2015 | |
| 103.55.56.0/23 | 512 | APNIC | 16th Apr 2015 | |
| 103.55.80.0/22 | 1k | APNIC | 17th Apr 2015 | |
| 103.56.116.0/22 | 1k | APNIC | 1st May 2015 | |
| 103.56.120.0/22 | 1k | APNIC | 1st May 2015 | |
| 103.56.136.0/23 | 512 | APNIC | 21st Dec 2022 | |
| 103.56.138.0/23 | 512 | APNIC | 21st Dec 2022 | |
| 103.56.140.0/22 | 1k | APNIC | 4th May 2015 | |
| 103.56.151.0/24 | 256 | APNIC | 5th May 2015 | |
| 103.56.176.0/22 | 1k | APNIC | 5th May 2015 | |
| 103.56.184.0/22 | 1k | APNIC | 6th May 2015 | |
| 103.56.20.0/22 | 1k | APNIC | 27th Apr 2015 | |
| 103.56.200.0/22 | 1k | APNIC | 6th May 2015 | |
| 103.56.210.0/23 | 512 | APNIC | 7th May 2015 | |
| 103.56.220.0/22 | 1k | APNIC | 8th May 2015 |