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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 53551 to 53600 of 85346
PrefixAddressesRegistryCountryAllocated
2400:afe0::/324.3B × /64APNICVN27th Sept 2022
2400:b060::/324.3B × /64APNICIN28th Sept 2022
2400:b0a0::/324.3B × /64APNICTW29th Sept 2022
2400:b160::/324.3B × /64APNICAU29th Sept 2022
2400:b180::/324.3B × /64APNICID5th Mar 2014
2400:b1c0::/324.3B × /64APNICHK15th Feb 2017
2400:b1e0::/324.3B × /64APNICIN30th Sept 2022
2400:b220::/324.3B × /64APNICIN30th Sept 2022
2400:b240::/324.3B × /64APNICBD15th Feb 2017
2400:b2e0::/324.3B × /64APNICIN3rd Oct 2022
2400:b3c0::/324.3B × /64APNICJP16th Feb 2017
2400:b440::/324.3B × /64APNICAU16th Feb 2017
2400:b4e0::/324.3B × /64APNICBD6th Oct 2022
2400:b500::/324.3B × /64APNICCN10th May 2011
2400:b540::/324.3B × /64APNICPK16th Feb 2017
2400:b580::/324.3B × /64APNICIN5th Mar 2014
2400:b5a0::/324.3B × /64APNICPH10th Oct 2022
2400:b5e0::/324.3B × /64APNICBD10th Oct 2022
2400:b640::/324.3B × /64APNICIN17th Feb 2017
2400:b660::/324.3B × /64APNICMY11th Oct 2022
2400:b680::/324.3B × /64APNICJP5th Mar 2014
2400:b6c0::/324.3B × /64APNICCN17th Feb 2017
2400:b6e0::/324.3B × /64APNICAU12th Oct 2022
2400:b720::/324.3B × /64APNICIN14th Oct 2022
2400:b740::/324.3B × /64APNICPK17th Feb 2017
2400:b780::/324.3B × /64APNICAU6th Mar 2014
2400:b7a0::/324.3B × /64APNICBD17th Oct 2022
2400:b7e0::/324.3B × /64APNICIN19th Oct 2022
2400:b820::/324.3B × /64APNICCA20th Oct 2022
2400:b8e0::/324.3B × /64APNICVN21st Oct 2022
2400:b920::/324.3B × /64APNICUS21st Oct 2022
2400:b980::/324.3B × /64APNICID7th Mar 2014
2400:b9a0::/324.3B × /64APNICCN24th Oct 2022
2400:b9c0::/324.3B × /64APNICCN20th Feb 2017
2400:b9e0::/324.3B × /64APNICKH25th Oct 2022
2400:ba00::/324.3B × /64APNICCN19th Mar 2010
2400:ba60::/324.3B × /64APNICTW25th Oct 2022
2400:bae0::/324.3B × /64APNICAU27th Oct 2022
2400:bb20::/324.3B × /64APNICTW27th Oct 2022
2400:bb60::/324.3B × /64APNICPK27th Oct 2022
2400:bba0::/324.3B × /64APNICPK27th Oct 2022
2400:bbc0::/324.3B × /64APNICHK21st Feb 2017
2400:bc60::/324.3B × /64APNICVN31st Oct 2022
2400:bca0::/324.3B × /64APNICTH31st Oct 2022
2400:bce0::/324.3B × /64APNICBD31st Oct 2022
2400:bd20::/324.3B × /64APNICPG31st Oct 2022
2400:bdc0::/324.3B × /64APNICAF23rd Feb 2017
2400:be20::/324.3B × /64APNICVN4th Nov 2022
2400:be40::/324.3B × /64APNICHK23rd Feb 2017
2400:be60::/324.3B × /64APNICIN7th Nov 2022