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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with unannounced space registered through APNIC, largest first.

Unannounced blocks registered through APNIC

22,593 blocks match, ordered by prefix.

Allocated but unannounced blocks, 19951 to 20000 of 22593
PrefixAddressesRegistryCountryAllocated
2406:5580::/324.3B × /64APNICCN5th Aug 2016
2406:5640::/324.3B × /64APNICTH10th Aug 2020
2406:5680::/324.3B × /64APNICCN5th Aug 2016
2406:56c0::/324.3B × /64APNICIN10th Aug 2020
2406:5700::/324.3B × /64APNICAF5th Mar 2013
2406:5780::/324.3B × /64APNICCN5th Aug 2016
2406:5840::/324.3B × /64APNICCN12th Aug 2020
2406:5841::/324.3B × /64APNICCN16th Oct 2025
2406:5940::/324.3B × /64APNICCN13th Aug 2020
2406:5980::/324.3B × /64APNICCN5th Aug 2016
2406:59c0::/324.3B × /64APNICBD13th Aug 2020
2406:5a40::/324.3B × /64APNICCN14th Aug 2020
2406:5a80::/324.3B × /64APNICAU8th Aug 2016
2406:5ac0::/324.3B × /64APNICCN14th Aug 2020
2406:5b00::/324.3B × /64APNICMY6th Mar 2013
2406:5b40::/324.3B × /64APNICCN14th Aug 2020
2406:5bc0::/324.3B × /64APNICID14th Aug 2020
2406:5c00::/324.3B × /64APNICID16th Feb 2010
2406:5d00::/324.3B × /64APNICAU6th Mar 2013
2406:5d80::/324.3B × /64APNICCN8th Aug 2016
2406:5e00::/324.3B × /64APNICAU18th Jan 2011
2406:5e40::/324.3B × /64APNICSG18th Aug 2020
2406:5e80::/324.3B × /64APNICCN8th Aug 2016
2406:5f00::/324.3B × /64APNICAU6th Mar 2013
2406:5f40::/324.3B × /64APNICVN20th Aug 2020
2406:5f80::/324.3B × /64APNICCN8th Aug 2016
2406:5fc0::/324.3B × /64APNICIN20th Aug 2020
2406:6000::/324.3B × /64APNICMY9th Aug 2007
2406:6080::/324.3B × /64APNICCN8th Aug 2016
2406:60c0::/324.3B × /64APNICMY24th Aug 2020
2406:6180::/324.3B × /64APNICCN8th Aug 2016
2406:61c0::/3017.2B × /64APNICCN24th Aug 2020
2406:61c4::/3017.2B × /64APNICCN10th Nov 2021
2406:6240::/324.3B × /64APNICNP25th Aug 2020
2406:6280::/324.3B × /64APNICCN8th Aug 2016
2406:62c0::/324.3B × /64APNICID25th Aug 2020
2406:6300::/324.3B × /64APNICCN8th Mar 2013
2406:6340::/324.3B × /64APNICCN26th Aug 2020
2406:6380::/324.3B × /64APNICCN8th Aug 2016
2406:63c0::/324.3B × /64APNICJP26th Aug 2020
2406:6400::/324.3B × /64APNICAU16th Feb 2010
2406:6440::/324.3B × /64APNICIN27th Aug 2020
2406:6480::/324.3B × /64APNICCN8th Aug 2016
2406:6500::/324.3B × /64APNICCN8th Mar 2013
2406:6540::/324.3B × /64APNICID28th Aug 2020
2406:6580::/324.3B × /64APNICCN8th Aug 2016
2406:65c0::/324.3B × /64APNICCN31st Aug 2020
2406:6600::/324.3B × /64APNICKR20th Jan 2011
2406:6640::/324.3B × /64APNICCN31st Aug 2020
2406:6680::/324.3B × /64APNICCN8th Aug 2016