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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 RIPE NCC, largest first.
Unannounced blocks registered through RIPE NCC
24,902 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 185.192.92.0/22 | 1k | RIPE NCC |  GB | 1st Mar 2017 |
| 185.193.132.0/22 | 1k | RIPE NCC |  AZ | 8th Mar 2017 |
| 185.193.192.0/22 | 1k | RIPE NCC |  AT | 9th Mar 2017 |
| 185.193.36.0/22 | 1k | RIPE NCC | AT | 6th Mar 2017 |
| 185.193.46.0/24 | 256 | RIPE NCC |  RU | 30th Jun 2021 |
| 185.193.96.0/22 | 1k | RIPE NCC | GB | 7th Mar 2017 |
| 185.194.12.0/24 | 256 | RIPE NCC |  CZ | 28th Sept 2020 |
| 185.194.13.0/24 | 256 | RIPE NCC |  DE | 28th Sept 2020 |
| 185.194.132.0/22 | 1k | RIPE NCC |  SA | 15th Mar 2017 |
| 185.194.149.0/24 | 256 | RIPE NCC | DE | 15th Mar 2017 |
| 185.194.16.0/22 | 1k | RIPE NCC |  NL | 13th Mar 2017 |
| 185.194.180.0/22 | 1k | RIPE NCC |  CH | 15th Mar 2017 |
| 185.194.196.0/23 | 512 | RIPE NCC |  TJ | 16th Mar 2017 |
| 185.194.36.0/22 | 1k | RIPE NCC | DE | 13th Mar 2017 |
| 185.195.112.0/22 | 1k | RIPE NCC | DE | 21st Mar 2017 |
| 185.195.156.0/22 | 1k | RIPE NCC |  SI | 21st Mar 2017 |
| 185.195.160.0/22 | 1k | RIPE NCC | GB | 21st Mar 2017 |
| 185.195.164.0/22 | 1k | RIPE NCC |  IE | 21st Mar 2017 |
| 185.195.32.0/22 | 1k | RIPE NCC | SA | 17th Mar 2017 |
| 185.196.10.0/24 | 256 | RIPE NCC | GB | 5th Oct 2026 |
| 185.196.11.0/24 | 256 | RIPE NCC |  FR | 5th Oct 2026 |
| 185.196.136.0/22 | 1k | RIPE NCC | CH | 27th Mar 2017 |
| 185.196.172.0/22 | 1k | RIPE NCC | NL | 28th Mar 2017 |
| 185.196.224.0/22 | 1k | RIPE NCC | DE | 29th Mar 2017 |
| 185.196.30.0/24 | 256 | RIPE NCC | FR | 11th Jan 2024 |
| 185.196.75.0/24 | 256 | RIPE NCC |  TR | 1st Jul 2024 |
| 185.197.183.0/24 | 256 | RIPE NCC | TR | 2nd Oct 2020 |
| 185.197.196.0/22 | 1k | RIPE NCC | TR | 3rd Apr 2017 |
| 185.197.204.0/22 | 1k | RIPE NCC |  IL | 4th Apr 2017 |
| 185.197.210.0/24 | 256 | RIPE NCC |  NO | 4th Apr 2017 |
| 185.198.15.0/24 | 256 | RIPE NCC | GB | 7th Jan 2025 |
| 185.198.212.0/22 | 1k | RIPE NCC | GB | 11th Apr 2017 |
| 185.198.220.0/22 | 1k | RIPE NCC | DE | 11th Apr 2017 |
| 185.198.236.0/22 | 1k | RIPE NCC | FR | 11th Apr 2017 |
| 185.198.57.0/24 | 256 | RIPE NCC | NL | 6th Apr 2017 |
| 185.198.70.0/24 | 256 | RIPE NCC | DE | 1st Jul 2021 |
| 185.198.71.0/24 | 256 | RIPE NCC | DE | 1st Jul 2021 |
| 185.199.100.0/22 | 1k | RIPE NCC | DE | 13th Apr 2017 |
| 185.199.132.0/22 | 1k | RIPE NCC | DE | 18th Apr 2017 |
| 185.199.192.0/22 | 1k | RIPE NCC | DE | 19th Apr 2017 |
| 185.199.20.0/22 | 1k | RIPE NCC | GB | 12th Apr 2017 |
| 185.199.40.0/22 | 1k | RIPE NCC | FR | 12th Apr 2017 |
| 185.199.56.0/22 | 1k | RIPE NCC | GB | 12th Apr 2017 |
| 185.199.64.0/22 | 1k | RIPE NCC |  IR | 13th Apr 2017 |
| 185.199.68.0/22 | 1k | RIPE NCC | DE | 13th Apr 2017 |
| 185.2.120.0/22 | 1k | RIPE NCC | DE | 18th Sept 2012 |
| 185.2.128.0/22 | 1k | RIPE NCC | DE | 18th Sept 2012 |
| 185.2.136.0/22 | 1k | RIPE NCC |  US | 18th Sept 2012 |
| 185.2.188.0/22 | 1k | RIPE NCC |  MK | 18th Sept 2012 |
| 185.2.72.0/22 | 1k | RIPE NCC | RU | 17th Sept 2012 |