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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 53351 to 53400 of 85346
PrefixAddressesRegistryCountryAllocated
2400:76e0::/324.3B × /64APNICIN4th May 2022
2400:7740::/324.3B × /64APNICCN12th Dec 2016
2400:7760::/324.3B × /64APNICBD4th May 2022
2400:77c0::/324.3B × /64APNICCN12th Dec 2016
2400:7820::/324.3B × /64APNICNZ5th May 2022
2400:7880::/324.3B × /64APNICNZ16th Dec 2013
2400:78c0::/324.3B × /64APNICID13th Dec 2016
2400:7900::/324.3B × /64APNICIN20th Apr 2011
2400:7960::/324.3B × /64APNICBD9th May 2022
2400:7980::/324.3B × /64APNICSG16th Dec 2013
2400:79a0::/324.3B × /64APNICIN9th May 2022
2400:79c0::/324.3B × /64APNICCN13th Dec 2016
2400:7a60::/324.3B × /64APNICIN10th May 2022
2400:7ae0::/324.3B × /64APNICCN11th May 2022
2400:7b20::/324.3B × /64APNICIN12th May 2022
2400:7b40::/324.3B × /64APNICBD14th Dec 2016
2400:7bc0::/324.3B × /64APNICCN15th Dec 2016
2400:7c20::/324.3B × /64APNICPH14th May 2022
2400:7c40::/324.3B × /64APNICBD16th Dec 2016
2400:7c60::/324.3B × /64APNICAU17th May 2022
2400:7c80::/324.3B × /64APNICIN16th Dec 2013
2400:7cc0::/324.3B × /64APNICBD16th Dec 2016
2400:7d00::/324.3B × /64APNICAU21st Apr 2011
2400:7d20::/324.3B × /64APNICJP17th May 2022
2400:7d60::/324.3B × /64APNICAU18th May 2022
2400:7d80::/324.3B × /64APNICAU16th Dec 2013
2400:7dc0::/324.3B × /64APNICID19th Dec 2016
2400:7de0::/324.3B × /64APNICPH18th May 2022
2400:7e20::/324.3B × /64APNICHK18th May 2022
2400:7e40::/324.3B × /64APNICHK19th Dec 2016
2400:7e80::/324.3B × /64APNICSG19th Dec 2013
2400:7ee0::/324.3B × /64APNICAU19th May 2022
2400:7f80::/324.3B × /64APNICCN25th Dec 2013
2400:8020::/324.3B × /64APNICVN21st May 2022
2400:8040::/324.3B × /64APNICJP21st Dec 2016
2400:8060::/324.3B × /64APNICAU23rd May 2022
2400:8080::/324.3B × /64APNICCN25th Dec 2013
2400:80e0::/324.3B × /64APNICTO25th May 2022
2400:81a0::/324.3B × /64APNICTH26th May 2022
2400:8201::/324.3B × /64APNICCN7th Feb 2025
2400:8260::/324.3B × /64APNICTW27th May 2022
2400:82a0::/324.3B × /64APNICVN30th May 2022
2400:82c0::/324.3B × /64APNICCN27th Dec 2016
2400:8340::/324.3B × /64APNICAU28th Dec 2016
2400:8360::/324.3B × /64APNICVN2nd Jun 2022
2400:83a0::/324.3B × /64APNICVN2nd Jun 2022
2400:83c0::/324.3B × /64APNICGB28th Dec 2016
2400:83e0::/324.3B × /64APNICBD2nd Jun 2022
2400:8400::/324.3B × /64APNICJP17th Jul 2009
2400:8420::/324.3B × /64APNICAU3rd Jun 2022