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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 53101 to 53150 of 85346
PrefixAddressesRegistryCountryAllocated
2400:38a0::/324.3B × /64APNICSG29th Nov 2021
2400:38c0::/324.3B × /64APNICCN17th Nov 2016
2400:3900::/324.3B × /64APNICAU6th Apr 2011
2400:3920::/324.3B × /64APNICMM29th Nov 2021
2400:3960::/324.3B × /64APNICVN30th Nov 2021
2400:39a0::/324.3B × /64APNICVN1st Dec 2021
2400:39c0::/324.3B × /64APNICCN17th Nov 2016
2400:3a00::/324.3B × /64APNICCN12th Mar 2010
2400:3a20::/324.3B × /64APNICIN2nd Dec 2021
2400:3a40::/324.3B × /64APNICCN17th Nov 2016
2400:3ae0::/324.3B × /64APNICBD5th Dec 2021
2400:3b20::/324.3B × /64APNICSG6th Dec 2021
2400:3b40::/324.3B × /64APNICCN17th Nov 2016
2400:3b60::/324.3B × /64APNICBD6th Dec 2021
2400:3b80::/324.3B × /64APNICIN23rd Oct 2013
2400:3ba0::/324.3B × /64APNICIN6th Dec 2021
2400:3c40::/324.3B × /64APNICCN17th Nov 2016
2400:3c80::/324.3B × /64APNICAU24th Oct 2013
2400:3cc0::/324.3B × /64APNICCN17th Nov 2016
2400:3d00::/324.3B × /64APNICAU7th Apr 2011
2400:3d20::/324.3B × /64APNICGB8th Dec 2021
2400:3d60::/324.3B × /64APNICPH9th Dec 2021
2400:3da0::/324.3B × /64APNICKH10th Dec 2021
2400:3de0::/324.3B × /64APNICIN10th Dec 2021
2400:3e00::/324.3B × /64APNICCN12th Mar 2010
2400:3ec0::/324.3B × /64APNICHK21st Nov 2016
2400:3f20::/324.3B × /64APNICUS14th Dec 2021
2400:3f40::/324.3B × /64APNICCN21st Nov 2016
2400:3fc0::/324.3B × /64APNICCN21st Nov 2016
2400:4400::/324.3B × /64APNICMY22nd Jun 2009
2400:4440::/324.3B × /64APNICCN21st Nov 2016
2400:44c0::/324.3B × /64APNICCN21st Nov 2016
2400:4500::/324.3B × /64APNICTW10th Apr 2011
2400:4520::/324.3B × /64APNICBD19th Dec 2021
2400:4540::/324.3B × /64APNICCN21st Nov 2016
2400:4560::/324.3B × /64APNICPH21st Dec 2021
2400:4580::/324.3B × /64APNICHK30th Oct 2013
2400:45c0::/324.3B × /64APNICUS21st Nov 2016
2400:45e0::/324.3B × /64APNICPH23rd Dec 2021
2400:4600::/324.3B × /64APNICCN12th Mar 2010
2400:4640::/324.3B × /64APNICCN21st Nov 2016
2400:4660::/324.3B × /64APNICNZ23rd Dec 2021
2400:4680::/324.3B × /64APNICSG30th Oct 2013
2400:46a0::/324.3B × /64APNICID24th Dec 2021
2400:46c0::/324.3B × /64APNICCN21st Nov 2016
2400:46e0::/324.3B × /64APNICID24th Dec 2021
2400:4720::/324.3B × /64APNICIN24th Dec 2021
2400:4760::/324.3B × /64APNICIN24th Dec 2021
2400:4780::/324.3B × /64APNICKR31st Oct 2013
2400:47a0::/324.3B × /64APNICID27th Dec 2021