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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

337 blocks match, ordered by prefix.

Allocated but unannounced blocks, 151 to 200 of 337
PrefixAddressesRegistryCountryAllocated
211.73.108.0/23512APNICTW23rd Nov 1999
211.73.110.0/23512APNICTW23rd Nov 1999
211.73.112.0/204.1kAPNICTW23rd Nov 1999
211.73.96.0/23512APNICTW23rd Nov 1999
211.73.98.0/23512APNICTW23rd Nov 1999
211.76.192.0/198.2kAPNICTW30th Jun 2000
211.76.224.0/204.1kAPNICTW30th Jun 2000
211.78.192.0/204.1kAPNICTW30th Jun 2000
223.165.0.0/23512APNICTW25th Sept 2025
223.26.6.0/23512APNICTW17th Aug 2010
23.163.36.0/24256ARINTW28th Aug 2026
2400:1300::/324.3B × /64APNICTW1st Apr 2011
2400:1500::/324.3B × /64APNICTW1st Apr 2011
2400:1be0::/324.3B × /64APNICTW3rd Nov 2021
2400:1ce0::/324.3B × /64APNICTW4th Nov 2021
2400:1e20::/324.3B × /64APNICTW9th Nov 2021
2400:30a0::/324.3B × /64APNICTW11th Nov 2021
2400:4500::/324.3B × /64APNICTW10th Apr 2011
2400:5060::/324.3B × /64APNICTW21st Jan 2022
2400:50a0::/324.3B × /64APNICTW21st Jan 2022
2400:50e0::/324.3B × /64APNICTW21st Jan 2022
2400:5ea0::/324.3B × /64APNICTW1st Mar 2022
2400:62e0::/324.3B × /64APNICTW11th Mar 2022
2400:6960::/324.3B × /64APNICTW28th Mar 2022
2400:7000::/324.3B × /64APNICTW7th Jan 2009
2400:8260::/324.3B × /64APNICTW27th May 2022
2400:8560::/324.3B × /64APNICTW9th Jun 2022
2400:91e0::/324.3B × /64APNICTW6th Jul 2022
2400:9360::/324.3B × /64APNICTW11th Jul 2022
2400:93a0::/324.3B × /64APNICTW11th Jul 2022
2400:ad20::/324.3B × /64APNICTW21st Sept 2022
2400:b0a0::/324.3B × /64APNICTW29th Sept 2022
2400:ba60::/324.3B × /64APNICTW25th Oct 2022
2400:bb20::/324.3B × /64APNICTW27th Oct 2022
2400:bea0::/324.3B × /64APNICTW8th Nov 2022
2400:bfa0::/324.3B × /64APNICTW9th Nov 2022
2400:c9a0::/324.3B × /64APNICTW8th Dec 2022
2400:c9e0::/324.3B × /64APNICTW8th Dec 2022
2400:d4a0::/324.3B × /64APNICTW13th Jan 2023
2400:ebe0::/324.3B × /64APNICTW16th Mar 2023
2400:f420::/324.3B × /64APNICTW10th Apr 2023
2400:f520::/324.3B × /64APNICTW12th Apr 2023
2400:fc80::/324.3B × /64APNICTW13th May 2014
2400:fe60::/324.3B × /64APNICTW15th May 2023
2400:fee0::/324.3B × /64APNICTW16th May 2023
2401:2760::/324.3B × /64APNICTW17th Aug 2023
2401:2920::/324.3B × /64APNICTW18th Aug 2023
2401:3b60::/324.3B × /64APNICTW22nd Sept 2023
2401:3ba0::/324.3B × /64APNICTW22nd Sept 2023
2401:3f40::/324.3B × /64APNICTW6th Jun 2017