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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 registered through APNIC
22,575 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.84.98.0/24 | 256 | APNIC |  AU | 24th Jan 2017 |
| 103.85.136.0/22 | 1k | APNIC |  CN | 10th Feb 2017 |
| 103.85.154.0/24 | 256 | APNIC |  IN | 14th Feb 2017 |
| 103.85.186.0/23 | 512 | APNIC | CN | 15th Feb 2023 |
| 103.85.200.0/22 | 1k | APNIC |  HK | 14th Feb 2017 |
| 103.85.214.0/23 | 512 | APNIC | AU | 16th Feb 2017 |
| 103.85.44.0/22 | 1k | APNIC | CN | 6th Feb 2017 |
| 103.85.48.0/22 | 1k | APNIC | CN | 6th Feb 2017 |
| 103.86.140.0/22 | 1k | APNIC |  ID | 24th Feb 2017 |
| 103.86.164.0/22 | 1k | APNIC | IN | 27th Feb 2017 |
| 103.86.168.0/22 | 1k | APNIC | AU | 28th Feb 2017 |
| 103.86.20.0/22 | 1k | APNIC | IN | 16th Feb 2017 |
| 103.86.204.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.208.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.212.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.216.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.220.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.224.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.228.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.232.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.236.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.240.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.244.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.248.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.252.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.86.28.0/22 | 1k | APNIC | CN | 16th Feb 2017 |
| 103.86.32.0/22 | 1k | APNIC | CN | 17th Feb 2017 |
| 103.86.58.0/23 | 512 | APNIC | AU | 21st Feb 2017 |
| 103.86.60.0/22 | 1k | APNIC | CN | 20th Feb 2017 |
| 103.86.8.0/22 | 1k | APNIC |  PK | 16th Feb 2017 |
| 103.86.94.0/24 | 256 | APNIC | ID | 21st Feb 2017 |
| 103.87.0.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.87.132.0/22 | 1k | APNIC | CN | 8th Mar 2017 |
| 103.87.144.0/22 | 1k | APNIC |  JP | 8th Mar 2017 |
| 103.87.156.0/22 | 1k | APNIC | HK | 9th Mar 2017 |
| 103.87.20.0/22 | 1k | APNIC | CN | 3rd Mar 2017 |
| 103.87.201.0/24 | 256 | APNIC | ID | 10th Mar 2017 |
| 103.87.224.0/22 | 1k | APNIC | CN | 13th Mar 2017 |
| 103.87.32.0/22 | 1k | APNIC | CN | 3rd Mar 2017 |
| 103.87.37.0/24 | 256 | APNIC | ID | 6th Mar 2017 |
| 103.87.4.0/22 | 1k | APNIC | CN | 2nd Mar 2017 |
| 103.87.96.0/22 | 1k | APNIC | CN | 7th Mar 2017 |
| 103.88.0.0/22 | 1k | APNIC | IN | 15th Mar 2017 |
| 103.88.104.0/22 | 1k | APNIC |  NZ | 21st Mar 2017 |
| 103.88.12.0/22 | 1k | APNIC | CN | 16th Mar 2017 |
| 103.88.148.0/22 | 1k | APNIC | AU | 22nd Mar 2017 |
| 103.88.16.0/22 | 1k | APNIC | CN | 16th Mar 2017 |
| 103.88.164.0/22 | 1k | APNIC | CN | 22nd Mar 2017 |
| 103.88.183.0/24 | 256 | APNIC | AU | 24th Mar 2017 |
| 103.88.20.0/22 | 1k | APNIC | CN | 16th Mar 2017 |