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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
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Countries with the most unannounced blocks, largest first.
Unannounced blocks in South Africa
764 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 102.215.208.0/22 | 1k | AFRINIC |  ZA | 31st May 2022 |
| 102.215.97.0/24 | 256 | AFRINIC | ZA | 18th Jul 2022 |
| 102.215.98.0/24 | 256 | AFRINIC | ZA | 21st Nov 2022 |
| 102.216.131.0/24 | 256 | AFRINIC | ZA | 11th Aug 2022 |
| 102.216.184.0/22 | 1k | AFRINIC | ZA | 10th Mar 2022 |
| 102.216.4.0/22 | 1k | AFRINIC | ZA | 7th Apr 2022 |
| 102.217.174.0/23 | 512 | AFRINIC | ZA | 2nd Dec 2021 |
| 102.217.220.0/22 | 1k | AFRINIC | ZA | 11th Nov 2021 |
| 102.220.112.0/22 | 1k | AFRINIC | ZA | 22nd Mar 2021 |
| 102.220.224.0/22 | 1k | AFRINIC | ZA | 25th Feb 2021 |
| 102.220.48.0/22 | 1k | AFRINIC | ZA | 27th Apr 2021 |
| 102.221.4.0/22 | 1k | AFRINIC | ZA | 22nd Dec 2020 |
| 102.221.50.0/23 | 512 | AFRINIC | ZA | 21st Apr 2021 |
| 102.222.180.0/22 | 1k | AFRINIC | ZA | 10th Jun 2020 |
| 102.222.80.0/23 | 512 | AFRINIC | ZA | 12th Aug 2020 |
| 102.36.196.0/22 | 1k | AFRINIC | ZA | 5th Aug 2019 |
| 102.36.252.0/22 | 1k | AFRINIC | ZA | 1st Aug 2019 |
| 102.68.143.0/24 | 256 | AFRINIC | ZA | 27th May 2019 |
| 152.109.0.0/16 | 65.5k | AFRINIC | ZA | 29th Mar 1993 |
| 155.159.0.0/16 | 65.5k | AFRINIC | ZA | 22nd May 1992 |
| 155.233.0.0/16 | 65.5k | AFRINIC | ZA | 25th Mar 1992 |
| 155.236.0.0/16 | 65.5k | AFRINIC | ZA | 15th Jun 1992 |
| 156.0.252.0/24 | 256 | AFRINIC | ZA | 7th Aug 2017 |
| 156.0.253.0/24 | 256 | AFRINIC | ZA | 13th Oct 2017 |
| 156.0.64.0/21 | 2k | AFRINIC | ZA | 27th Oct 2017 |
| 160.117.0.0/16 | 65.5k | AFRINIC | ZA | 15th Dec 1994 |
| 160.118.0.0/16 | 65.5k | AFRINIC | ZA | 2nd Sept 2008 |
| 160.119.212.0/22 | 1k | AFRINIC | ZA | 24th Jul 2017 |
| 160.121.0.0/16 | 65.5k | AFRINIC | ZA | 7th Aug 1992 |
| 160.122.0.0/16 | 65.5k | AFRINIC | ZA | 23rd Jul 1992 |
| 164.160.20.0/22 | 1k | AFRINIC | ZA | 20th May 2016 |
| 164.160.60.0/22 | 1k | AFRINIC | ZA | 13th Jun 2016 |
| 164.160.92.0/22 | 1k | AFRINIC | ZA | 4th Jul 2016 |
| 165.180.0.0/16 | 65.5k | AFRINIC | ZA | 23rd Jul 1993 |
| 168.128.0.0/16 | 65.5k | AFRINIC | ZA | 21st Apr 1994 |
| 168.164.0.0/16 | 65.5k | AFRINIC | ZA | 23rd Sept 1994 |
| 168.206.0.0/16 | 65.5k | AFRINIC | ZA | 5th Jul 1994 |
| 169.129.0.0/16 | 65.5k | AFRINIC | ZA | 2nd Nov 1994 |
| 169.239.60.0/22 | 1k | AFRINIC | ZA | 31st Aug 2015 |
| 169.255.192.0/22 | 1k | AFRINIC | ZA | 8th May 2015 |
| 185.39.236.0/22 | 1k | RIPE NCC | ZA | 7th Nov 2013 |
| 185.46.237.0/24 | 256 | RIPE NCC | ZA | 30th Jun 2025 |
| 185.68.84.0/22 | 1k | RIPE NCC | ZA | 26th Aug 2014 |
| 192.100.1.0/24 | 256 | AFRINIC | ZA | 8th Mar 1991 |
| 192.109.242.0/24 | 256 | AFRINIC | ZA | 3rd Aug 1992 |
| 192.133.250.0/24 | 256 | AFRINIC | ZA | 16th Dec 1991 |
| 192.157.190.0/24 | 256 | AFRINIC | ZA | 14th Feb 1995 |
| 192.189.75.0/24 | 256 | AFRINIC | ZA | 10th Jul 1992 |
| 192.231.254.0/24 | 256 | AFRINIC | ZA | 26th Oct 1992 |
| 192.48.253.0/24 | 256 | AFRINIC | ZA | 28th Mar 1989 |