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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

321 blocks match, ordered by prefix.

Allocated but unannounced blocks, 251 to 300 of 321
PrefixAddressesRegistryCountryAllocated
2403:d5c0::/324.3B × /64APNICTW26th Oct 2018
2403:e940::/324.3B × /64APNICTW8th Nov 2018
2403:fb40::/324.3B × /64APNICTW23rd Nov 2018
2404:15c0::/324.3B × /64APNICTW11th Dec 2018
2404:178::/324.3B × /64APNICTW18th Aug 2006
2404:22c0::/324.3B × /64APNICTW21st Dec 2018
2404:2840::/324.3B × /64APNICTW26th Dec 2018
2404:28c0::/324.3B × /64APNICTW26th Dec 2018
2404:6200::/324.3B × /64APNICTW10th Sept 2010
2404:62c0::/324.3B × /64APNICTW11th Feb 2019
2404:73c0::/324.3B × /64APNICTW20th Feb 2019
2404:7d40::/324.3B × /64APNICTW26th Feb 2019
2404:840::/324.3B × /64APNICTW29th Nov 2018
2404:8cc0::/324.3B × /64APNICTW5th Mar 2019
2404:9cc0::/324.3B × /64APNICTW13th Mar 2019
2404:9e40::/324.3B × /64APNICTW14th Mar 2019
2404:c7c0::/324.3B × /64APNICTW18th Apr 2019
2404:d2c0::/324.3B × /64APNICTW3rd May 2019
2404:db00::/324.3B × /64APNICTW24th Aug 2012
2404:e40::/324.3B × /64APNICTW4th Dec 2018
2404:f40::/324.3B × /64APNICTW4th Dec 2018
2405:1740::/324.3B × /64APNICTW23rd Jul 2019
2405:3ec0::/324.3B × /64APNICTW2nd Sept 2019
2405:4d00::/324.3B × /64APNICTW25th Sept 2012
2405:6440::/324.3B × /64APNICTW14th Oct 2019
2405:67c0::/324.3B × /64APNICTW17th Oct 2019
2405:740::/324.3B × /64APNICTW9th Jul 2019
2405:8700::/324.3B × /64APNICTW25th Oct 2012
2405:9b40::/324.3B × /64APNICTW17th Dec 2019
2405:a00::/324.3B × /64APNICTW27th Oct 2010
2405:a0c0::/324.3B × /64APNICTW19th Dec 2019
2405:c600::/324.3B × /64APNICTW21st Dec 2010
2405:ccc0::/324.3B × /64APNICTW6th Feb 2020
2405:d140::/324.3B × /64APNICTW15th Feb 2020
2405:fbc0::/324.3B × /64APNICTW6th Apr 2020
2406:1740::/324.3B × /64APNICTW13th May 2020
2406:2f40::/324.3B × /64APNICTW24th Jun 2020
2406:86c0::/324.3B × /64APNICTW24th Sept 2020
2406:9580::/324.3B × /64APNICTW11th Aug 2016
2406:b4c0::/324.3B × /64APNICTW6th Nov 2020
2406:ce40::/324.3B × /64APNICTW26th Nov 2020
2406:d0c0::/324.3B × /64APNICTW30th Nov 2020
2406:d400::/324.3B × /64APNICTW23rd Feb 2010
2406:db40::/324.3B × /64APNICTW7th Dec 2020
2406:f2c0::/324.3B × /64APNICTW25th Dec 2020
2406:f340::/324.3B × /64APNICTW25th Dec 2020
2406:f540::/324.3B × /64APNICTW28th Dec 2020
2406:f5c0::/324.3B × /64APNICTW29th Dec 2020
2406:fcc0::/324.3B × /64APNICTW5th Jan 2021
2406:fdc0::/324.3B × /64APNICTW6th Jan 2021