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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 in Saudi Arabia
161 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.148.172.0/23 | 512 | RIPE NCC |  SA | 18th Feb 2020 |
| 103.76.166.0/23 | 512 | RIPE NCC | SA | 6th Oct 2016 |
| 147.82.0.0/16 | 65.5k | RIPE NCC | SA | 16th Jul 1991 |
| 152.114.228.0/22 | 1k | RIPE NCC | SA | 1st Jan 1984 |
| 153.56.173.0/24 | 256 | RIPE NCC | SA | 23rd Sept 1991 |
| 153.56.174.0/23 | 512 | RIPE NCC | SA | 23rd Sept 1991 |
| 167.111.0.0/16 | 65.5k | RIPE NCC | SA | 1st Sept 1993 |
| 176.110.100.0/24 | 256 | RIPE NCC | SA | 25th Jul 2012 |
| 185.0.37.0/24 | 256 | RIPE NCC | SA | 16th Aug 2023 |
| 185.1.126.0/24 | 256 | RIPE NCC | SA | 6th Feb 2019 |
| 185.1.188.0/24 | 256 | RIPE NCC | SA | 23rd Aug 2021 |
| 185.1.239.0/24 | 256 | RIPE NCC | SA | 8th Apr 2022 |
| 185.1.58.0/24 | 256 | RIPE NCC | SA | 2nd Feb 2021 |
| 185.100.152.0/22 | 1k | RIPE NCC | SA | 18th May 2015 |
| 185.121.252.0/22 | 1k | RIPE NCC | SA | 19th Oct 2015 |
| 185.135.199.0/24 | 256 | RIPE NCC | SA | 5th Feb 2026 |
| 185.169.48.0/22 | 1k | RIPE NCC | SA | 22nd Sept 2016 |
| 185.171.152.0/22 | 1k | RIPE NCC | SA | 6th Oct 2016 |
| 185.191.72.0/22 | 1k | RIPE NCC | SA | 21st Feb 2017 |
| 185.194.132.0/22 | 1k | RIPE NCC | SA | 15th Mar 2017 |
| 185.195.32.0/22 | 1k | RIPE NCC | SA | 17th Mar 2017 |
| 185.200.121.0/24 | 256 | RIPE NCC | SA | 2nd Oct 2020 |
| 185.202.140.0/22 | 1k | RIPE NCC | SA | 9th May 2017 |
| 185.207.28.0/22 | 1k | RIPE NCC | SA | 7th Jun 2017 |
| 185.217.100.0/22 | 1k | RIPE NCC | SA | 14th Aug 2017 |
| 185.217.4.0/24 | 256 | RIPE NCC | SA | 26th Jun 2023 |
| 185.229.164.0/22 | 1k | RIPE NCC | SA | 1st Nov 2017 |
| 185.30.148.0/22 | 1k | RIPE NCC | SA | 11th Jul 2013 |
| 185.56.196.0/22 | 1k | RIPE NCC | SA | 6th May 2014 |
| 185.70.160.0/23 | 512 | RIPE NCC | SA | 18th Sept 2014 |
| 185.90.16.0/22 | 1k | RIPE NCC | SA | 2nd Mar 2015 |
| 188.139.0.0/17 | 32.8k | RIPE NCC | SA | 20th May 2009 |
| 188.95.160.0/21 | 2k | RIPE NCC | SA | 18th Jan 2011 |
| 192.203.227.0/24 | 256 | RIPE NCC | SA | 30th Oct 1992 |
| 193.104.204.0/24 | 256 | RIPE NCC | SA | 14th Dec 2009 |
| 193.105.8.0/24 | 256 | RIPE NCC | SA | 6th Jan 2010 |
| 193.105.89.0/24 | 256 | RIPE NCC | SA | 1st Feb 2010 |
| 193.178.143.0/24 | 256 | RIPE NCC | SA | 6th Oct 2025 |
| 193.201.155.64/26 | 64 | RIPE NCC | SA | 31st Dec 2024 |
| 194.0.15.0/24 | 256 | RIPE NCC | SA | 4th Feb 2010 |
| 194.26.197.0/24 | 256 | RIPE NCC | SA | 28th Oct 2021 |
| 194.32.165.0/24 | 256 | RIPE NCC | SA | 21st Nov 2019 |
| 194.32.203.0/24 | 256 | RIPE NCC | SA | 21st Nov 2019 |
| 194.53.174.0/24 | 256 | RIPE NCC | SA | 6th Aug 2025 |
| 195.134.184.0/21 | 2k | RIPE NCC | SA | 8th Mar 2012 |
| 195.149.65.0/24 | 256 | RIPE NCC | SA | 23rd Jul 2003 |
| 196.1.3.0/24 | 256 | RIPE NCC | SA | 21st Dec 1992 |
| 196.1.6.0/24 | 256 | RIPE NCC | SA | 28th Feb 1994 |
| 196.1.64.0/22 | 1k | RIPE NCC | SA | 30th Dec 1992 |
| 196.3.66.0/24 | 256 | RIPE NCC | SA | 15th Sept 1993 |