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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with unannounced space registered through APNIC, largest first.

Unannounced blocks in United States

116 blocks match, ordered by prefix.

Allocated but unannounced blocks, 51 to 100 of 116
PrefixAddressesRegistryCountryAllocated
2001:df1:ec0::/4865.5k × /64APNICUS27th Jul 2022
2001:df2:a300::/4865.5k × /64APNICUS27th Sept 2017
2001:df2:fc80::/4865.5k × /64APNICUS26th Feb 2020
2001:df3:45c0::/4865.5k × /64APNICUS12th Dec 2023
2001:df3:46c0::/4865.5k × /64APNICUS12th Dec 2023
2001:df3:4b00::/4865.5k × /64APNICUS28th Nov 2017
2001:df3:b580::/4865.5k × /64APNICUS12th May 2020
2001:df3:da00::/4865.5k × /64APNICUS5th Aug 2016
2001:df4:5b40::/4865.5k × /64APNICUS3rd Oct 2024
2001:df4:dc40::/4865.5k × /64APNICUS2nd Jan 2025
2001:df5:4100::/4865.5k × /64APNICUS28th May 2018
2001:df5:a980::/4865.5k × /64APNICUS24th Dec 2020
2001:df7:ac00::/4865.5k × /64APNICUS26th Nov 2015
202.0.192.0/1816.4kAPNICUS19th Sept 1994
202.4.164.0/24256APNICUS24th Sept 2009
202.43.91.0/24256APNICUS17th Aug 2016
202.74.55.0/24256APNICUS17th Aug 2016
202.81.16.0/204.1kAPNICUS9th Jul 2010
202.86.4.0/221kAPNICUS14th Mar 2006
203.11.96.0/24256APNICUS12th Jan 1995
203.142.11.0/24256APNICUS12th May 2004
203.184.64.0/204.1kAPNICUS6th Mar 2001
203.217.137.0/24256APNICUS23rd Jun 2009
203.25.162.0/24256APNICUS25th Mar 1996
203.32.0.0/221kAPNICUS26th Sept 1996
203.34.210.0/24256APNICUS21st Nov 1996
203.5.14.0/23512APNICUS6th May 1994
203.6.130.0/24256APNICUS11th Jul 1994
2400:3f20::/324.3B × /64APNICUS14th Dec 2021
2400:45c0::/324.3B × /64APNICUS21st Nov 2016
2400:51a0::/324.3B × /64APNICUS21st Jan 2022
2400:9640::/324.3B × /64APNICUS19th Jan 2017
2400:b920::/324.3B × /64APNICUS21st Oct 2022
2400:db60::/324.3B × /64APNICUS3rd Feb 2023
2401:5260::/324.3B × /64APNICUS24th Nov 2023
2401:a560::/324.3B × /64APNICUS6th Jun 2024
2401:ea60::/324.3B × /64APNICUS22nd Jan 2025
2402:9900::/324.3B × /64APNICUS22nd Nov 2011
2402:c580::/324.3B × /64APNICUS18th Aug 2015
2402:ce40::/324.3B × /64APNICUS26th Apr 2018
2402:fc40::/324.3B × /64APNICUS1st Jun 2018
2403:340::/324.3B × /64APNICUS6th Jun 2018
2403:7c40::/324.3B × /64APNICUS6th Sept 2018
2404:1ac0::/324.3B × /64APNICUS14th Dec 2018
2404:4a80::/324.3B × /64APNICUS10th Feb 2016
2404:64c0::/324.3B × /64APNICUS14th Feb 2019
2404:7440::/324.3B × /64APNICUS20th Feb 2019
2404:8b00::/324.3B × /64APNICUS24th Jul 2012
2404:9480::/324.3B × /64APNICUS22nd Mar 2016
2404:f6c0::/324.3B × /64APNICUS16th Jun 2019