subnet.im

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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 in South Africa

767 blocks match, ordered by prefix.

Allocated but unannounced blocks, 551 to 600 of 767
PrefixAddressesRegistryCountryAllocated
2001:43f8:2c0::/4865.5k × /64AFRINICZA31st May 2011
2001:43f8:620::/4865.5k × /64AFRINICZA7th Mar 2012
2001:43f8:690::/4865.5k × /64AFRINICZA28th Mar 2023
2001:43f8:6d0::/46262k × /64AFRINICZA30th Aug 2012
2001:43f8:7e0::/4865.5k × /64AFRINICZA6th Jun 2013
2001:43f8:900::/4865.5k × /64AFRINICZA17th Jul 2013
2001:43f8:950::/4865.5k × /64AFRINICZA12th Nov 2013
2001:43f8:a0::/4865.5k × /64AFRINICZA27th Jan 2009
2001:43f8:d20::/441M × /64AFRINICZA10th Apr 2017
2001:43f8:d50::/4865.5k × /64AFRINICZA26th Apr 2017
2001:43f8:db0::/4865.5k × /64AFRINICZA7th Aug 2017
2001:43fc:a800::/4865.5k × /64AFRINICZA16th Oct 2025
2001:43fc:c800::/4865.5k × /64AFRINICZA24th Oct 2025
2001:43fd:800::/4865.5k × /64AFRINICZA9th Dec 2025
2001:43fe:2000::/4865.5k × /64AFRINICZA14th Sept 2021
2001:43fe:9000::/4865.5k × /64AFRINICZA8th Feb 2023
2001:43fe::/4865.5k × /64AFRINICZA25th Jan 2021
2001:43fe:a000::/4016.8M × /64AFRINICZA8th Oct 2021
2001:43fe:e000::/4865.5k × /64AFRINICZA8th Jun 2022
2001:43ff:4000::/4865.5k × /64AFRINICZA28th Jul 2021
2001:43ff:9000::/4865.5k × /64AFRINICZA2nd Oct 2023
2001:43ff:e000::/4865.5k × /64AFRINICZA12th Sept 2022
2001:67c:ef8::/4865.5k × /64RIPE NCCZA9th Jul 2024
204.12.128.0/204.1kAFRINICZA13th Dec 1994
204.87.179.0/24256AFRINICZA24th Jan 1995
205.159.79.0/24256AFRINICZA16th Mar 1995
2a01:5380::/324.3B × /64RIPE NCCZA9th Jun 2011
2a02:47c0::/324.3B × /64RIPE NCCZA18th Sept 2012
2a05:1680::/2934.4B × /64RIPE NCCZA26th Aug 2014
2a0c:2e00::/2934.4B × /64RIPE NCCZA17th Oct 2017
2a0c:4540::/2934.4B × /64RIPE NCCZA6th Apr 2018
2a0d:9080::/2934.4B × /64RIPE NCCZA19th Feb 2018
2a0d:b980::/2934.4B × /64RIPE NCCZA27th Feb 2018
2a0e:3900::/324.3B × /64RIPE NCCZA25th Apr 2019
2a12:4900::/2934.4B × /64RIPE NCCZA11th Nov 2021
2a12:800::/2934.4B × /64RIPE NCCZA29th Oct 2021
2a14:5f00::/2934.4B × /64RIPE NCCZA20th Nov 2023
2c0e:7000::/324.3B × /64AFRINICZA2nd Feb 2024
2c0e:7e00::/2868.7B × /64AFRINICZA13th Nov 2023
2c0f:10c0::/324.3B × /64AFRINICZA9th Oct 2024
2c0f:12a0::/324.3B × /64AFRINICZA5th Aug 2026
2c0f:13a0::/324.3B × /64AFRINICZA18th Aug 2026
2c0f:1700::/324.3B × /64AFRINICZA25th Oct 2021
2c0f:1780::/324.3B × /64AFRINICZA19th Oct 2022
2c0f:1980::/324.3B × /64AFRINICZA21st Oct 2022
2c0f:1c00::/324.3B × /64AFRINICZA25th Feb 2021
2c0f:1d40::/324.3B × /64AFRINICZA16th Oct 2023
2c0f:200::/324.3B × /64AFRINICZA3rd Mar 2021
2c0f:20c0::/324.3B × /64AFRINICZA27th Jun 2025
2c0f:2140::/324.3B × /64AFRINICZA25th Oct 2023