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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 53151 to 53200 of 85346
PrefixAddressesRegistryCountryAllocated
2400:47e0::/324.3B × /64APNICID27th Dec 2021
2400:4820::/324.3B × /64APNICIN27th Dec 2021
2400:4860::/324.3B × /64APNICIN28th Dec 2021
2400:48a0::/324.3B × /64APNICBD29th Dec 2021
2400:48c0::/324.3B × /64APNICJP22nd Nov 2016
2400:48e0::/324.3B × /64APNICIN30th Dec 2021
2400:4920::/324.3B × /64APNICCN31st Dec 2021
2400:4940::/324.3B × /64APNICHK23rd Nov 2016
2400:4960::/324.3B × /64APNICIN31st Dec 2021
2400:4980::/324.3B × /64APNICKR1st Nov 2013
2400:49a0::/324.3B × /64APNICHK3rd Jan 2022
2400:49e0::/324.3B × /64APNICIN3rd Jan 2022
2400:4ac0::/324.3B × /64APNICBD24th Nov 2016
2400:4b00::/324.3B × /64APNICAU12th Apr 2011
2400:4b20::/324.3B × /64APNICID6th Jan 2022
2400:4b60::/324.3B × /64APNICIN6th Jan 2022
2400:4b80::/324.3B × /64APNICAU4th Nov 2013
2400:4bc0::/324.3B × /64APNICCN24th Nov 2016
2400:4c00::/324.3B × /64APNICHK22nd Jun 2009
2400:4c20::/324.3B × /64APNICIN11th Jan 2022
2400:4c40::/324.3B × /64APNICBD24th Nov 2016
2400:4c60::/324.3B × /64APNICMY13th Jan 2022
2400:4ca0::/324.3B × /64APNICBD14th Jan 2022
2400:4cc0::/324.3B × /64APNICBD24th Nov 2016
2400:4ce0::/324.3B × /64APNICPH14th Jan 2022
2400:4d00::/324.3B × /64APNICAU12th Apr 2011
2400:4da0::/324.3B × /64APNICVN17th Jan 2022
2400:4de0::/324.3B × /64APNICVN17th Jan 2022
2400:4e00::/324.3B × /64APNICCN12th Mar 2010
2400:4e40::/324.3B × /64APNICCN28th Nov 2016
2400:4ee0::/324.3B × /64APNICGB18th Jan 2022
2400:4f40::/324.3B × /64APNICID28th Nov 2016
2400:4f60::/324.3B × /64APNICIN18th Jan 2022
2400:4fa0::/324.3B × /64APNICIN18th Jan 2022
2400:4fe0::/324.3B × /64APNICIN18th Jan 2022
2400:5040::/324.3B × /64APNICID28th Nov 2016
2400:5060::/324.3B × /64APNICTW21st Jan 2022
2400:5080::/324.3B × /64APNICCN5th Nov 2013
2400:50a0::/324.3B × /64APNICTW21st Jan 2022
2400:50e0::/324.3B × /64APNICTW21st Jan 2022
2400:5140::/324.3B × /64APNICID29th Nov 2016
2400:5180::/324.3B × /64APNICAF6th Nov 2013
2400:51a0::/324.3B × /64APNICUS21st Jan 2022
2400:5220::/324.3B × /64APNICIN24th Jan 2022
2400:5260::/324.3B × /64APNICNZ25th Jan 2022
2400:52a0::/324.3B × /64APNICBD25th Jan 2022
2400:5340::/324.3B × /64APNICHK30th Nov 2016
2400:5360::/324.3B × /64APNICVN26th Jan 2022
2400:53a0::/324.3B × /64APNICJP26th Jan 2022
2400:53c0::/324.3B × /64APNICHK30th Nov 2016