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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 AFRINIC, largest first.
Unannounced blocks in Congo - Brazzaville
11 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 102.209.72.0/22 | 1k | AFRINIC |  CG | 18th Apr 2024 |
| 196.223.32.0/24 | 256 | AFRINIC | CG | 16th Jul 2012 |
| 196.60.56.0/24 | 256 | AFRINIC | CG | 2nd Oct 2018 |
| 2001:43f8:6a0::/48 | 65.5k × /64 | AFRINIC | CG | 16th Jul 2012 |
| 2001:43f8:6a1::/48 | 65.5k × /64 | AFRINIC | CG | 18th Jun 2018 |
| 2001:43f8:6a2::/48 | 65.5k × /64 | AFRINIC | CG | 2nd Oct 2018 |
| 2001:43f8:6a3::/48 | 65.5k × /64 | AFRINIC | CG | 2nd Oct 2018 |
| 2001:43fc:f000::/48 | 65.5k × /64 | AFRINIC | CG | 18th Apr 2024 |
| 2c0f:1180::/32 | 4.3B × /64 | AFRINIC | CG | 17th Oct 2022 |
| 2c0f:7600::/32 | 4.3B × /64 | AFRINIC | CG | 21st May 2021 |
| 2c0f:ead8::/32 | 4.3B × /64 | AFRINIC | CG | 5th Nov 2019 |