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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.
Unannounced blocks
84,738 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 93.114.100.0/22 | 1k | RIPE NCC |  RO | 21st Dec 2007 |
| 93.114.112.0/20 | 4.1k | RIPE NCC |  ES | 21st Dec 2007 |
| 93.114.134.0/23 | 512 | RIPE NCC |  NL | 21st Dec 2007 |
| 93.114.138.0/23 | 512 | RIPE NCC | RO | 21st Dec 2007 |
| 93.114.141.0/24 | 256 | RIPE NCC |  TR | 21st Dec 2007 |
| 93.114.168.0/24 | 256 | RIPE NCC |  IL | 21st Dec 2007 |
| 93.114.182.0/24 | 256 | RIPE NCC |  US | 21st Dec 2007 |
| 93.114.190.0/23 | 512 | RIPE NCC | RO | 21st Dec 2007 |
| 93.114.232.0/23 | 512 | RIPE NCC | RO | 21st Dec 2007 |
| 93.114.32.0/21 | 2k | RIPE NCC | RO | 21st Dec 2007 |
| 93.114.70.0/23 | 512 | RIPE NCC | RO | 21st Dec 2007 |
| 93.115.154.0/24 | 256 | RIPE NCC |  IT | 21st Dec 2007 |
| 93.115.208.0/23 | 512 | RIPE NCC | RO | 21st Dec 2007 |
| 93.115.248.0/22 | 1k | RIPE NCC |  DE | 21st Dec 2007 |
| 93.115.3.0/24 | 256 | RIPE NCC |  JO | 21st Dec 2007 |
| 93.115.54.0/23 | 512 | RIPE NCC | RO | 21st Dec 2007 |
| 93.115.64.0/21 | 2k | RIPE NCC | ES | 21st Dec 2007 |
| 93.115.9.0/24 | 256 | RIPE NCC |  BE | 21st Dec 2007 |
| 93.115.98.0/23 | 512 | RIPE NCC | RO | 21st Dec 2007 |
| 93.117.140.0/22 | 1k | RIPE NCC |  MD | 21st Dec 2007 |
| 93.117.156.0/22 | 1k | RIPE NCC | MD | 21st Dec 2007 |
| 93.117.168.0/22 | 1k | RIPE NCC | MD | 21st Dec 2007 |
| 93.117.175.0/24 | 256 | RIPE NCC | NL | 21st Dec 2007 |
| 93.117.176.0/20 | 4.1k | RIPE NCC |  IR | 21st Dec 2007 |
| 93.117.68.0/22 | 1k | RIPE NCC | MD | 21st Dec 2007 |
| 93.117.72.0/21 | 2k | RIPE NCC | MD | 21st Dec 2007 |
| 93.118.176.0/22 | 1k | RIPE NCC | MD | 21st Dec 2007 |
| 93.118.188.0/22 | 1k | RIPE NCC | MD | 21st Dec 2007 |
| 93.118.192.0/18 | 16.4k | RIPE NCC | ES | 21st Dec 2007 |
| 93.118.36.0/24 | 256 | RIPE NCC |  AE | 21st Dec 2007 |
| 93.118.80.0/20 | 4.1k | RIPE NCC | ES | 21st Dec 2007 |
| 93.119.108.0/22 | 1k | RIPE NCC | MD | 21st Dec 2007 |
| 93.119.114.0/23 | 512 | RIPE NCC | RO | 21st Dec 2007 |
| 93.119.116.0/23 | 512 | RIPE NCC | RO | 21st Dec 2007 |
| 93.119.128.0/21 | 2k | RIPE NCC | MD | 21st Dec 2007 |
| 93.119.140.0/22 | 1k | RIPE NCC | MD | 21st Dec 2007 |
| 93.119.155.0/24 | 256 | RIPE NCC | NL | 21st Dec 2007 |
| 93.119.171.0/24 | 256 | RIPE NCC | RO | 21st Dec 2007 |
| 93.119.194.0/24 | 256 | RIPE NCC | IT | 21st Dec 2007 |
| 93.119.196.0/22 | 1k | RIPE NCC | MD | 21st Dec 2007 |
| 93.119.208.0/20 | 4.1k | RIPE NCC | IR | 21st Dec 2007 |
| 93.119.228.0/22 | 1k | RIPE NCC | MD | 21st Dec 2007 |
| 93.119.64.0/19 | 8.2k | RIPE NCC | IR | 21st Dec 2007 |
| 93.123.14.0/23 | 512 | RIPE NCC |  CH | 5th Mar 2008 |
| 93.123.82.0/23 | 512 | RIPE NCC | CH | 5th Mar 2008 |
| 93.125.128.0/17 | 32.8k | RIPE NCC | NL | 17th Apr 2008 |
| 93.152.236.0/22 | 1k | RIPE NCC |  BG | 2nd May 2008 |
| 93.157.106.0/24 | 256 | RIPE NCC |  RU | 23rd Aug 2021 |
| 93.157.110.0/24 | 256 | RIPE NCC |  SC | 23rd Aug 2021 |
| 93.157.187.0/24 | 256 | RIPE NCC | DE | 8th Jun 2020 |