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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
84,954 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 62.182.36.0/22 | 1k | RIPE NCC |  FR | 8th Jan 2019 |
| 62.182.40.0/22 | 1k | RIPE NCC |  DE | 18th Jun 2018 |
| 62.184.0.0/16 | 65.5k | RIPE NCC |  NL | 7th May 1997 |
| 62.185.0.0/16 | 65.5k | RIPE NCC | NL | 7th Aug 1998 |
| 62.186.0.0/16 | 65.5k | RIPE NCC | NL | 26th May 1999 |
| 62.187.0.0/16 | 65.5k | RIPE NCC | NL | 4th Aug 2000 |
| 62.192.155.0/24 | 256 | RIPE NCC |  GI | 27th Aug 2020 |
| 62.192.176.0/22 | 1k | RIPE NCC | DE | 10th Jan 2019 |
| 62.192.180.0/22 | 1k | RIPE NCC | DE | 10th Jan 2019 |
| 62.193.160.0/19 | 8.2k | AFRINIC |  CI | 28th Feb 2020 |
| 62.204.41.0/24 | 256 | RIPE NCC |  HK | 8th Oct 2021 |
| 62.204.44.0/24 | 256 | RIPE NCC |  IT | 8th Oct 2021 |
| 62.204.47.0/24 | 256 | RIPE NCC |  TR | 11th Oct 2021 |
| 62.213.124.0/24 | 256 | RIPE NCC |  RU | 9th Nov 2001 |
| 62.213.65.0/24 | 256 | RIPE NCC | RU | 9th Nov 2001 |
| 62.213.80.0/23 | 512 | RIPE NCC | RU | 9th Nov 2001 |
| 62.213.93.0/24 | 256 | RIPE NCC | RU | 9th Nov 2001 |
| 62.220.109.0/24 | 256 | RIPE NCC |  IR | 25th Oct 2001 |
| 62.220.110.0/23 | 512 | RIPE NCC | IR | 25th Oct 2001 |
| 62.221.224.0/22 | 1k | RIPE NCC | NL | 10th Feb 2003 |
| 62.222.0.0/16 | 65.5k | RIPE NCC |  GB | 27th Oct 2000 |
| 62.233.47.0/24 | 256 | RIPE NCC |  SC | 13th Oct 2021 |
| 62.233.50.0/24 | 256 | RIPE NCC | GB | 7th Jan 2025 |
| 62.233.51.0/24 | 256 | RIPE NCC |  LT | 11th Jan 2024 |
| 62.233.63.0/24 | 256 | RIPE NCC | IT | 14th Oct 2021 |
| 62.244.117.0/24 | 256 | RIPE NCC | FR | 16th Sept 2002 |
| 62.3.128.0/19 | 8.2k | RIPE NCC |  SE | 5th Oct 2000 |
| 62.3.21.0/24 | 256 | RIPE NCC | IT | 8th Nov 2021 |
| 62.3.39.0/24 | 256 | RIPE NCC |  BG | 9th Nov 2021 |
| 62.3.40.0/24 | 256 | RIPE NCC | DE | 9th Nov 2021 |
| 62.3.45.0/24 | 256 | RIPE NCC | DE | 9th Nov 2021 |
| 62.3.63.0/24 | 256 | RIPE NCC | RU | 9th Nov 2021 |
| 62.32.33.0/24 | 256 | RIPE NCC |  US | 12th May 2000 |
| 62.32.36.0/22 | 1k | RIPE NCC | NL | 12th May 2000 |
| 62.32.48.0/20 | 4.1k | RIPE NCC | NL | 12th May 2000 |
| 62.4.104.0/22 | 1k | RIPE NCC |  CZ | 11th Jun 2001 |
| 62.51.0.0/16 | 65.5k | RIPE NCC | US | 10th Mar 2005 |
| 62.62.0.0/17 | 32.8k | RIPE NCC |  LU | 6th Jul 2000 |
| 62.64.32.0/19 | 8.2k | RIPE NCC | FR | 19th Aug 2008 |
| 62.68.64.0/24 | 256 | RIPE NCC | NL | 25th Jan 2022 |
| 62.68.66.0/24 | 256 | RIPE NCC | NL | 25th Jan 2022 |
| 62.68.69.0/24 | 256 | RIPE NCC | NL | 25th Jan 2022 |
| 62.68.72.0/24 | 256 | RIPE NCC | NL | 25th Jan 2022 |
| 62.68.76.0/24 | 256 | RIPE NCC | NL | 25th Jan 2022 |
| 62.68.81.0/24 | 256 | RIPE NCC | NL | 25th Jan 2022 |
| 62.68.83.0/24 | 256 | RIPE NCC | SC | 25th Jan 2022 |
| 62.68.86.0/24 | 256 | RIPE NCC | SC | 25th Jan 2022 |
| 62.68.89.0/24 | 256 | RIPE NCC | NL | 25th Jan 2022 |
| 62.68.92.0/24 | 256 | RIPE NCC | NL | 25th Jan 2022 |
| 62.69.144.0/21 | 2k | RIPE NCC | DE | 13th Aug 2012 |