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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Browse by registry

Browse by country

Countries with the most unannounced blocks, largest first.

Unannounced blocks in Taiwan

321 blocks match, ordered by prefix.

Allocated but unannounced blocks, 301 to 321 of 321
PrefixAddressesRegistryCountryAllocated
2407:1440::/324.3B × /64APNICTW1st Feb 2021
2407:3d00::/324.3B × /64APNICTW19th Jun 2013
2407:51c0::/324.3B × /64APNICTW19th Apr 2021
2407:92c0::/324.3B × /64APNICTW17th Jun 2021
2407:9a40::/324.3B × /64APNICTW28th Jun 2021
2407:9fc0::/324.3B × /64APNICTW2nd Jul 2021
2407:a0c0::/324.3B × /64APNICTW2nd Jul 2021
43.240.108.0/221kAPNICTW14th Aug 2014
43.240.152.0/221kAPNICTW15th Aug 2014
43.241.160.0/221kAPNICTW25th Aug 2014
43.241.32.0/221kAPNICTW19th Aug 2014
43.242.6.0/23512APNICTW10th Aug 2026
43.255.180.0/221kAPNICTW7th Aug 2014
43.255.88.0/221kAPNICTW31st Jul 2014
43.255.92.0/221kAPNICTW31st Jul 2014
45.113.156.0/221kAPNICTW20th Mar 2015
60.245.64.0/198.2kAPNICTW31st Aug 2006
61.67.112.0/212kAPNICTW21st Feb 2001
61.67.122.0/23512APNICTW21st Feb 2001
61.67.124.0/221kAPNICTW21st Feb 2001
61.67.96.0/204.1kAPNICTW21st Feb 2001