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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through APNIC, largest first.

Unannounced blocks registered through APNIC

22,580 blocks match, ordered by prefix.

Allocated but unannounced blocks, 16851 to 16900 of 22580
PrefixAddressesRegistryCountryAllocated
2401:5160::/324.3B × /64APNICIN17th Nov 2023
2401:51c0::/324.3B × /64APNICAU13th Jun 2017
2401:520::/324.3B × /64APNICVN31st May 2023
2401:5220::/324.3B × /64APNICTW23rd Nov 2023
2401:5260::/324.3B × /64APNICUS24th Nov 2023
2401:52a0::/324.3B × /64APNICBD24th Nov 2023
2401:52e0::/324.3B × /64APNICBD27th Nov 2023
2401:5320::/324.3B × /64APNICVN27th Nov 2023
2401:5340::/324.3B × /64APNICBD13th Jun 2017
2401:5360::/324.3B × /64APNICVN27th Nov 2023
2401:53e0::/324.3B × /64APNICVN27th Nov 2023
2401:540::/324.3B × /64APNICCN26th Apr 2017
2401:5480::/324.3B × /64APNICHK4th Aug 2014
2401:54a0::/324.3B × /64APNICIN28th Nov 2023
2401:54e0::/324.3B × /64APNICIN28th Nov 2023
2401:5520::/324.3B × /64APNICID29th Nov 2023
2401:5540::/324.3B × /64APNICPK15th Jun 2017
2401:5680::/324.3B × /64APNICCN6th Aug 2014
2401:5720::/324.3B × /64APNICSG5th Dec 2023
2401:57c0::/324.3B × /64APNICID15th Jun 2017
2401:57e0::/324.3B × /64APNICVN7th Dec 2023
2401:5800::/324.3B × /64APNICBD21st May 2008
2401:5820::/324.3B × /64APNICVN7th Dec 2023
2401:58a0::/324.3B × /64APNICCN8th Dec 2023
2401:5900::/324.3B × /64APNICHK30th Jun 2011
2401:5980::/324.3B × /64APNICMY12th Aug 2014
2401:59c0::/324.3B × /64APNICCN20th Jun 2017
2401:59e0::/324.3B × /64APNICBD12th Dec 2023
2401:5a20::/324.3B × /64APNICSG12th Dec 2023
2401:5a60::/324.3B × /64APNICAU13th Dec 2023
2401:5a80::/324.3B × /64APNICIN13th Aug 2014
2401:5b00::/324.3B × /64APNICAU1st Jul 2011
2401:5b20::/324.3B × /64APNICVN15th Dec 2023
2401:5b40::/324.3B × /64APNICCN21st Jun 2017
2401:5bc0::/324.3B × /64APNICKH21st Jun 2017
2401:5c40::/324.3B × /64APNICPH22nd Jun 2017
2401:5c60::/324.3B × /64APNICCN19th Dec 2023
2401:5c80::/324.3B × /64APNICCN18th Aug 2014
2401:5ce0::/324.3B × /64APNICVN20th Dec 2023
2401:5d00::/324.3B × /64APNICBD4th Jul 2011
2401:5d20::/324.3B × /64APNICID21st Dec 2023
2401:5d60::/324.3B × /64APNICNZ21st Dec 2023
2401:5de0::/324.3B × /64APNICMY26th Dec 2023
2401:5e00::/324.3B × /64APNICTW12th Apr 2010
2401:5e0::/324.3B × /64APNICBD5th Jun 2023
2401:5e20::/324.3B × /64APNICVN27th Dec 2023
2401:5f00::/324.3B × /64APNICAU5th Jul 2011
2401:5f40::/324.3B × /64APNICBT23rd Jun 2017
2401:5f60::/324.3B × /64APNICBD28th Dec 2023
2401:5fa0::/324.3B × /64APNICCN28th Dec 2023